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Silva CS, Vianna da Costa-E-Silva E, Nunes Dode MA, Mendes Cunha AT, Garcia WR, Sampaio BFB, Borges Silva JC, Vaz FEM, Kerns K, Sutovsky P, Nogueira E. Semen quality of Nellore and Angus bulls classified by fertility indices and relations with field fertility in fixed-time artificial insemination. Theriogenology 2023; 212:148-156. [PMID: 37722295 DOI: 10.1016/j.theriogenology.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 08/28/2023] [Accepted: 09/01/2023] [Indexed: 09/20/2023]
Abstract
Despite being the most important form of biotechnology in animal reproduction, artificial insemination was used in about 23% of Brazilian bovine herds in 2021. This is due to the variability of results caused by varying bull fertility and body condition of the cows. This study aimed to correlate the fertility indices of bulls with qualitative attributes of the semen. Semen samples from 28 bulls (Nellore and Angus) were used to evaluate postthaw sperm morphology and kinetics using conventional analysis, image-based flow cytometry (IBFC) and computer-assisted semen analysis (CASA). The fertility index was effective in separating bulls into 4 different fertility classes (P < 0.001), and fertility rates in timed artificial insemination (TAI) remained constant between the cows' fertility categories (P < 0.001) and in the different grades of female body condition (P < 0.005). After partial least squares regression (PLS) analysis, four models were proposed with different variables. The coefficients of determination for the conventional analysis, CASA, and IBCFC models were 0.154, 0.380, and 0.259, respectively. The composite model, including select IBFC and CASA parameters, showed a greater R2 (0.481) with progressive motility, average speed (VAP, μm/s), membrane integrity, and mitochondrial potential, showing a positive effect. Linear speed (VSL, μm/s) and acrosomal integrity had a negative effect on bull fertility indices. Bulls classified by the fertility index attained dispersed pregnancy rates in different cow body condition score (BCS) classes, and the sperm quality pattern was consistent with this classification. In conclusion, this novel composite model including CASA and IBFC parameters improves the prediction of bull fertility used in TAI.
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Affiliation(s)
- Camile Sanches Silva
- Programa de Pós-graduação em Ciências Veterinárias, FAMEZ/UFMS- Cidade Universitária, Caixa Postal 549, Postal Code- 79070-900, Campo Grande, MS, Brazil; Grupo de Estudos em Reprodução Animal - GERA-MS/CNPq, Brazil
| | - Eliane Vianna da Costa-E-Silva
- Programa de Pós-graduação em Ciências Veterinárias, FAMEZ/UFMS- Cidade Universitária, Caixa Postal 549, Postal Code- 79070-900, Campo Grande, MS, Brazil; Grupo de Estudos em Reprodução Animal - GERA-MS/CNPq, Brazil
| | - Margot Alves Nunes Dode
- EMBRAPA Cenargen- Parque estação biológica- PqEB, s/n. Postal Code 70770-901, Brasilia, DF, Brazil
| | | | - Wagner Rodrigues Garcia
- Programa de Pós-graduação em Ciências Veterinárias, FAMEZ/UFMS- Cidade Universitária, Caixa Postal 549, Postal Code- 79070-900, Campo Grande, MS, Brazil; Grupo de Estudos em Reprodução Animal - GERA-MS/CNPq, Brazil
| | - Breno Fernandes Barreto Sampaio
- Programa de Pós-graduação em Ciências Veterinárias, FAMEZ/UFMS- Cidade Universitária, Caixa Postal 549, Postal Code- 79070-900, Campo Grande, MS, Brazil; Grupo de Estudos em Reprodução Animal - GERA-MS/CNPq, Brazil
| | | | - Francisco Eduardo Machado Vaz
- Programa de Pós-graduação em Ciências Veterinárias, FAMEZ/UFMS- Cidade Universitária, Caixa Postal 549, Postal Code- 79070-900, Campo Grande, MS, Brazil
| | - Karl Kerns
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA; Department of Animal Science, Iowa State University, Ames, IA, 50011, USA
| | - Peter Sutovsky
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA; Department of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, MO, 65211, USA
| | - Eriklis Nogueira
- Programa de Pós-graduação em Ciências Veterinárias, FAMEZ/UFMS- Cidade Universitária, Caixa Postal 549, Postal Code- 79070-900, Campo Grande, MS, Brazil; Embrapa Pantanal, Rua 21 de Setembro n. 1880, Postal Code- 79320-900, Corumba, MS, Brazil; Grupo de Estudos em Reprodução Animal - GERA-MS/CNPq, Brazil.
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Campanholi SP, Garcia Neto S, Pinheiro GM, Nogueira MFG, Rocha JC, Losano JDDA, Siqueira AFP, Nichi M, Assumpção MEOD, Basso AC, Monteiro FM, Gimenes LU. Can in vitro embryo production be estimated from semen variables in Senepol breed by using artificial intelligence? Front Vet Sci 2023; 10:1254940. [PMID: 37808114 PMCID: PMC10551135 DOI: 10.3389/fvets.2023.1254940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/31/2023] [Indexed: 10/10/2023] Open
Abstract
Thoroughly analyzing the sperm and exploring the information obtained using artificial intelligence (AI) could be the key to improving fertility estimation. Artificial neural networks have already been applied to calculate zootechnical indices in animals and predict fertility in humans. This method of estimating the results of reproductive biotechnologies, such as in vitro embryo production (IVEP) in cattle, could be valuable for livestock production. This study was developed to model IVEP estimates in Senepol animals based on various sperm attributes, through retrospective data from 290 IVEP routines performed using 38 commercial doses of semen from Senepol bulls. All sperm samples that had undergone the same procedure during sperm selection for in vitro fertilization were evaluated using a computer-assisted sperm analysis (CASA) system to define sperm subpopulations. Sperm morphology was also analyzed in a wet preparation, and the integrity of the plasma and acrosomal membranes, mitochondrial potential, oxidative status, and chromatin resistance were evaluated using flow cytometry. A previous study identified three sperm subpopulations in such samples and the information used in tandem with other sperm quality variables to perform an AI analysis. AI analysis generated models that estimated IVEP based on the season, donor, percentage of viable oocytes, and 18 other sperm predictor variables. The accuracy of the results obtained for the three best AI models for predicting the IVEP was 90.7, 75.3, and 79.6%, respectively. Therefore, applying this AI technique would enable the estimation of high or low embryo production for individual bulls based on the sperm analysis information.
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Affiliation(s)
- Suzane Peres Campanholi
- Departamento de Patologia, Reprodução e Saúde Única, Faculdade de Ciências Agrárias e Veterinárias (FCAV), Universidade Estadual Paulista, Jaboticabal, Brazil
| | | | - Gabriel Martins Pinheiro
- Departamento de Ciências Biológicas, Faculdade de Ciências e Letras (FCLA), Universidade Estadual Paulista (UNESP), Assis, Brazil
| | - Marcelo Fábio Gouveia Nogueira
- Departamento de Ciências Biológicas, Faculdade de Ciências e Letras (FCLA), Universidade Estadual Paulista (UNESP), Assis, Brazil
| | - José Celso Rocha
- Departamento de Ciências Biológicas, Faculdade de Ciências e Letras (FCLA), Universidade Estadual Paulista (UNESP), Assis, Brazil
| | - João Diego de Agostini Losano
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia (FMVZ), Universidade de São Paulo (USP), São Paulo, Brazil
| | - Adriano Felipe Perez Siqueira
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia (FMVZ), Universidade de São Paulo (USP), São Paulo, Brazil
| | - Marcílio Nichi
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia (FMVZ), Universidade de São Paulo (USP), São Paulo, Brazil
| | | | | | - Fabio Morato Monteiro
- Centro Avançado de Pesquisa de Bovinos de Corte, Agência Paulista de Tecnologia dos Agronegócios/Instituto de Zootecnia (APTA/IZ), Sertãozinho, Brazil
| | - Lindsay Unno Gimenes
- Departamento de Patologia, Reprodução e Saúde Única, Faculdade de Ciências Agrárias e Veterinárias (FCAV), Universidade Estadual Paulista, Jaboticabal, Brazil
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Chhillar S, Batra V, Kumaresan A, Kumar R, Pal A, Datta TK. Acute exposure to organophosphorus pesticide metabolites compromises buffalo sperm function and impairs fertility. Sci Rep 2023; 13:9102. [PMID: 37277402 DOI: 10.1038/s41598-023-35541-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 05/19/2023] [Indexed: 06/07/2023] Open
Abstract
Agrichemicals such as organophosphorus pesticides' metabolites (OPPMs) are more hazardous and pervasive than their parent pesticides. Parental germline exposure to such xenobiotics leads to an elevated susceptibility towards reproductive failures e.g. sub- or in-fertility. This study sought to examine the effects of low-dose, acute OPPM exposure on mammalian sperm function using buffalo as the model organism. The buffalo spermatozoa were briefly (2 h) exposed to metabolites of the three most prevalent organophosphorus pesticides (OPPs) viz. Omethoate (from Dimethoate), paraoxon-methyl (from methyl/ethyl parathion) and 3, 5, 6-trichloro-2-pyridinol (from chlorpyrifos). Exposure to OPPMs resulted in compromised structural and functional integrity (dose-dependent) of the buffalo spermatozoa typified by elevated membrane damage, increased lipid peroxidation, precocious capacitation and tyrosine phosphorylation, perturbed mitochondrial activity and function and (P < 0.05). This led to a decline in the in vitro fertilizing ability (P < 0.01) of the exposed spermatozoa, as indicated by reduced cleavage and blastocyst formation rates. Preliminary data indicate that acute exposure to OPPMs, akin to their parent pesticides, induces biomolecular and physiological changes in spermatozoa that compromise their health and function ultimately affecting their fertility. This is the first study demonstrating the in vitro spermatotoxic effects of multiple OPPMs on male gamete functional integrity.
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Affiliation(s)
- Shivani Chhillar
- Animal Genomics Lab., Animal Biotechnology Centre, ICAR-NDRI, National Dairy Research Institute, Karnal, India
| | - Vipul Batra
- Animal Genomics Lab., Animal Biotechnology Centre, ICAR-NDRI, National Dairy Research Institute, Karnal, India
- School of Medicine, Division of Child Health, Obstetrics and Gynecology, University of Nottingham, Nottingham, England
| | - Arumugam Kumaresan
- Theriogenelogy Lab., SRS of National Dairy Research Institute, Bengaluru, India
| | - Rakesh Kumar
- Animal Genomics Lab., Animal Biotechnology Centre, ICAR-NDRI, National Dairy Research Institute, Karnal, India
| | - Ankit Pal
- Animal Genomics Lab., Animal Biotechnology Centre, ICAR-NDRI, National Dairy Research Institute, Karnal, India
| | - Tirtha Kumar Datta
- Animal Genomics Lab., Animal Biotechnology Centre, ICAR-NDRI, National Dairy Research Institute, Karnal, India.
- ICAR-Central Institute for Research on Buffaloes, Hisar, India.
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Araújo Silva RAJ, Monteiro MM, Costa JAS, Mergulhão FCC, Monteiro PLJ, Silva DMF, Santos Filho AS, Souza AF, Batista AM, Guerra MMP. Dimethylformamide Preserves the Integrity of Cryopreserved Goat Semen in a Soybean Lecithin-Based Extender. Biopreserv Biobank 2022; 20:502-508. [PMID: 34788548 DOI: 10.1089/bio.2021.0049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study investigated the cryoprotectant effects of dimethylformamide (DMF), ethylene glycol (EG), and dimethyl sulfoxide (DMSO) as substitutes for glycerol (GLY) in a soybean lecithin (SL)-based extender in the cryopreservation of buck sperm. In this study, the semen of three Saanen bucks was individually extended in SL supplemented with 5% GLY (control), DMF, EG, or DMSO. After this, the extended semen was cryopreserved and two straws from each group were thawed (37°C for 30 seconds), pooled, and analyzed for sperm motion parameters, plasma membrane integrity (PMI), acrosomal integrity (ACI), and high mitochondrial membrane potential (HMMP). Samples were analyzed after 15 minutes (T0) and after 2 hours of incubation at 37°C (T2). The results revealed higher values of motility (total and progressive) and sperm motion parameters for DMF than the other cryoprotectants (p < 0.0001). PMI and HMMP did not differ (p > 0.05) between GLY and DMF, but ACI was higher (p < 0.01) for DMF compared with GLY. Based on these results, DMF and GLY samples were used in heterologous in vitro fertilization assays by using bovine oocytes (n = 337) obtained from a slaughterhouse. No differences (p > 0.05) were observed between GLY and DMF for unfertilized (GLY: 38.8%; DMF: 25.33%), pronucleus (GLY: 25.68%; DMF: 27.92%), and cleavage rates (GLY: 35.52%; DMF: 46.75%). Based on these results, it is concluded that DMF preserves sperm motion characteristics and ACI better than GLY, EG, and DMSO, and it is the penetrating cryoprotectant of choice for the cryopreservation of buck sperm in SL extender.
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Affiliation(s)
| | - Millena M Monteiro
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Joana A S Costa
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Flávio C C Mergulhão
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | | | - Diogo M F Silva
- Laboratório de Fisiologia Animal e Molecular Aplicada, Departamento de Fisiologia Animal, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | | | - Andréia F Souza
- Departamento de Zootecnia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - André M Batista
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Maria Madalena P Guerra
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
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Seasonal variation in bull semen quality demonstrates there are heat-sensitive and heat-tolerant bulls. Sci Rep 2022; 12:15322. [PMID: 36097009 PMCID: PMC9468146 DOI: 10.1038/s41598-022-17708-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 07/29/2022] [Indexed: 11/08/2022] Open
Abstract
Using semen data from 1271 ejaculates (79 different bulls, 11 different breeds) we have investigated the variability of semen quality in cattle living in sub-tropical conditions. Modelling shows definitive evidence of seasonal variation. Semen quality from the same bulls had a 90% "pass rate" for cryopreservation purposes in winter, dropping to less than 50% in summer. Notably, individual bulls could be classified as either "heat-tolerant" (produce good quality spermatozoa all year regardless of temperature) or "heat-sensitive" (only produce good quality sperm in summer). Nominal logistic regression demonstrated when temperatures reach 30.5 °C, 40% of heat-sensitive bulls fail a semen analysis 17 days later. At 34 °C, the proportion of bulls failing reached 63%. Ratifying this, the purposeful heating of bulls to 40 °C for 12 h showed that individual animals had different degrees of heat-sensitivity. Using historical temperature data, we then modelled how many days/decade bulls would be subject to heat-events. Beginning from 1939 to 1949, on average, the area in which bulls were kept recorded 19, 7 and 1 day over 38 °C, 39 °C and 40 °C respectively. This number steadily increases and of last decade (2010-2010), the numbers of days per decade over 38 °C, 39 °C and 40 °C jumped to a staggering 75, 39 and 15 respectively. These data show the urgent need to identify heat-tolerant bulls as future sires. Such variation likely explains why the veterinary bull breeding test often fails to accurately predict bull breeding potential.
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Imani S, Zhandi M, Towhidi A, Zaghari M, Yousefi AR, Sharafi M, Nadri T. Determining the Optimal Dosage of Lecithin Nanoliposome in Rooster Semen Freezing Medium and Fertility Potential. Biopreserv Biobank 2022; 21:191-199. [PMID: 35788145 DOI: 10.1089/bio.2021.0115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: Lecithin nanoliposome (nano-LPO), with its cryoprotective properties, is considered to enhance the performance of a traditional semen cryoprotectant. Objective: To determine the optimal dose of lecithin nano-LPO added to the rooster semen extender. Materials and Methods: Semen samples collected weekly from eight broiler breeder roosters were mixed and aliquoted into five equal subsamples, during the five successive weeks. The subsamples were then diluted with a semen extender containing 0%, 0.5%, 1%, 1.5%, or 2% of lecithin nano-LPO. Post-thawed semen quality attributes, including sperm motility and velocity parameters, plasma membrane functionality, mitochondrial membrane potential (MMP), apoptosis-like changes, and fertility potential, were evaluated. Results: Total motility and velocity parameters, including curvilinear velocity (VCL), straight-line velocity (VSL), average path velocity μm/s (VAP), straightness (STR), linearity (LIN), lateral head displacement (ALH), and wobble (WOB) were quadratically (p < 0.01) influenced by graded levels of lecithin nano-LPO, such that the highest values were obtained when 1% of lecithin nano-LPO was used. Treatments had no significant effect on plasma membrane functionality; however, MMP (p < 0.08) and percentages of live and dead spermatozoa (p < 0.05) quadratically responded to increasing levels of lecithin nano-LPO, where the best outcome was found when about 1% of lecithin nano-LPO was used in the semen extender. The percentage of apoptotic spermatozoa cubically responded to increasing levels of lecithin nano-LPO (p ≤ 0.07). No significant trend of fertility rate was found in response to addition of lecithin nano-LPO levels. Conclusions: Supplementing an extender with 1.10% of lecithin nano-LPO is shown to be the optimal dose associated with the most improvement in post-thawed rooster sperm velocity measurements.
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Affiliation(s)
- Saeideh Imani
- Department of Animal Science, College of Agriculture and Natural Resource, University of Tehran, Karaj, Iran
| | - Mahdi Zhandi
- Department of Animal Science, College of Agriculture and Natural Resource, University of Tehran, Karaj, Iran
| | - Armin Towhidi
- Department of Animal Science, College of Agriculture and Natural Resource, University of Tehran, Karaj, Iran
| | - Mojtaba Zaghari
- Department of Animal Science, College of Agriculture and Natural Resource, University of Tehran, Karaj, Iran
| | - Ali Reza Yousefi
- Department of Pathology and Experimental Animals, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Mohsen Sharafi
- Department of Poultry Sciences, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.,Department of Embryology, Reproduction Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACER, Tehran, Iran
| | - Touba Nadri
- Department of Animal Science, College of Agriculture and Natural Resource, University of Tehran, Karaj, Iran
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Saraf KK, Kumaresan A, Arathi BP, Sundaresan NR, Datta TK. Comparative high-throughput analysis of sperm membrane proteins from crossbred bulls with contrasting fertility. Andrologia 2022; 54:e14451. [PMID: 35484731 DOI: 10.1111/and.14451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 03/31/2022] [Accepted: 04/19/2022] [Indexed: 11/30/2022] Open
Abstract
The aim of the present study was to identify fertility associated sperm membrane proteins in crossbred bulls. Sperm membrane proteins from high- and low-fertile Holstein Friesian crossbred bulls (n = 3 each) were subjected to high-throughput liquid chromatography-mass spectrometry (LC-MS/MS) for comparative proteomic analysis. Proteomic profiling identified a total of 456 proteins in crossbred bull spermatozoa; it was found that 108 proteins were up regulated while 26 proteins were down regulated (>1.5-folds) in spermatozoa from low- compared to high-fertile bulls. Gene ontology classification revealed that upregulated proteins in low-fertile bulls were involved in biological process such as oxidation-reduction process (p = 3.14E-06), fusion of sperm to egg plasma membrane (p = 7.51E-04), sperm motility (p = 0.03), and capacitation (p = 0.09), while down regulated proteins were associated with transport (p = 6.94E-04), superoxide metabolic process (p = 0.02), and tricarboxylic acid cycle (p = 0.04). KEGG pathway analysis revealed that oxidative phosphorylation and tricarboxylic acid cycle pathways are the most significantly affected pathway in low-fertile bulls. It was concluded that expression of proteins associated with oxidative phosphorylation and tricarboxylic acid cycle pathways were altered in low-fertile crossbred bulls, and expression levels of SPATA19, ELSPBP1, ACRBP, CLU, SUCLA2, and SPATC1 could aid in assessing potential fertility of crossbred bulls.
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Affiliation(s)
- Kaustubh Kishor Saraf
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR-National Dairy Research Institute, Bengaluru, Karnataka, India
| | - Arumugam Kumaresan
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR-National Dairy Research Institute, Bengaluru, Karnataka, India
| | | | | | - Tirtha Kumar Datta
- Animal Genomics Laboratory, ICAR-National Dairy Research Institute, Karnal, Haryana, India
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Novelties in Ovine Assisted Reproductive Technologies – A Review. MACEDONIAN VETERINARY REVIEW 2022. [DOI: 10.2478/macvetrev-2022-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Artificial insemination (AI) as a part of assisted reproductive technologies represents the oldest and most widespread method used to accelerate genetic progress in all domestic animals. After its first implementation in ovine reproduction and almost 80 years afterward, AI is continuously used for improving the genetic merit, utilizing either fresh or short-time chilled semen. Nevertheless, regardless of the semen used for insemination, the conception rate (CR) is still lower in comparison to natural service. At least two factors are commonly thought to limit the success of the AI and reduce the CR: (1) failure of placing the semen directly into the uterus due to the specific anatomic structure of the ewe’s cervix; (2) lower viability of ram spermatozoa during cryopreservation (<30% progressively motile spermatozoa after thawing). This review elaborates on recent studies that aimed to achieve acceptable CR through the implementation of cervical or intrauterine insemination: deep intracervical, intrauterine trans-cervical, and intracornual. Several hormonal treatments (oxytocin, estrogen, or prostaglandin) were evaluated on inducing cervical dilation that facilitates insemination. A comprehensive analysis was given to the effects of several antioxidants (GSSG, GSH, and cysteine) supplemented in ram semen-freezing media. Sex-sorted ram semen fertility rate results were presented from our studies.
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Moura FH, Macias-Franco A, Pena-Bello CA, Archilia EC, Batalha IM, Silva AEM, Moreira GM, Norris AB, Schütz LF, Fonseca MA. Sperm DNA 5-methyl cytosine and RNA N6-methyladenosine methylation are differently affected during periods of body weight losses and body weight gain of young and mature breeding bulls. J Anim Sci 2021; 100:6460477. [PMID: 34902028 PMCID: PMC8849232 DOI: 10.1093/jas/skab362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 12/10/2021] [Indexed: 12/15/2022] Open
Abstract
Aiming to characterize the effects of nutritional status on epigenetic markers, such as DNA 5-methyl cytosine (mC) methylation and RNA N6-methyladenosine (m6A) methylation, of bovine sperm, 12 Angus × Hereford crossbred breeding bulls were submitted to nutritional changes for a period of 180 d: no change in body weight (BW) (phase 1 = 12 d), BW loss (phase 2 = 78 d), and BW gain (phase 3 = 90 d) in a repeated measures design. Animals were fed Beardless wheat (Triticum aestivum) hay and mineral mix. Statistical analyses were performed using SAS 9.4 (SAS Inst., Cary, NC). Higher levels of RNA m6A (P = 0.004) and DNA methylation (P = 0.007) of spermatic cells were observed at phase 2 compared with phase 1. In phase 3, sperm RNA m6A methylation levels continued to be higher (P = 0.004), whereas the DNA of sperm cells was similar (P = 0.426) compared with phase 1. Growing bulls had a tendency (P = 0.109) of higher RNA m6A methylation levels than mature bulls. Phase 2 altered scrotal circumference (P < 0.001), sperm volume (P = 0.007), sperm total motility (P = 0.004), sperm progressive motility (P = 0.004), total sperm count (P = 0.049), normal sperm (P < 0.001), abnormal sperm (P < 0.001), primary sperm defects (P = 0.039), and secondary sperm defects (P < 0.001). In phase 3, bulls had scrotal circumference, sperm volume, sperm motility, sperm progressive motility, total sperm count, normal and abnormal spermatozoa, and primary and secondary spermatozoa defects similar to phase 1 (P > 0.05). Serum concentrations of insulin-like growth factor-1 and leptin decreased during phase 2 (P = 0.010), while no differences (P > 0.05) were detected between phases 3 and 1; growing bulls tended (P = 0.102) to present higher leptin levels than mature bulls. Specific for mature bulls, DNA methylation was positively correlated with leptin concentration (0.569, P = 0.021), whereas for young bulls, DNA methylation was positively correlated with abnormal spermatozoa (0.824, P = 0.006), primary spermatozoa defect (0.711, P = 0.032), and secondary spermatozoa defect (0.661, P = 0.052) and negatively correlated with normal spermatozoa (-0.824, P = 0.006), total sperm count (-0.702, P = 0.035), and sperm concentration (-0.846, P = 0.004). There was no significant correlation (P > 0.05) between RNA m6A and hormones and semen traits. In conclusion, the nutritional status of breeding bulls alters epigenetic markers, such as DNA methylation and RNA m6A methylation, in sperm, and the impact of change seems to be age dependent. These markers may serve as biomarkers of sperm quality and fertility of bulls in the future. Detrimental effects on sperm production and seminal quality are observed at periods and places when and where environmental and nutritional limitations are a year-round reality and may carry hidden players that may influence a lifetime of underperformance.
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Affiliation(s)
- Felipe H Moura
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA
| | - Arturo Macias-Franco
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA
| | - Camilo A Pena-Bello
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA
| | - Evandro C Archilia
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA
| | - Isadora M Batalha
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA
| | - Aghata E M Silva
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA
| | - Gabriel M Moreira
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA
| | - Aaron B Norris
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA,Department of Natural Resources Management, Texas Tech University, Lubbock, TX 79430, USA
| | - Luis F Schütz
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA
| | - Mozart A Fonseca
- Department of Animal, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA,Corresponding author:
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10
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Assessment of cryopreserved sperm functions of Korean native brindled cattle (Chikso) from different region research centers of Korea. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2021. [DOI: 10.12750/jarb.36.2.106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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11
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Namula Z, Isumi Y, Sato Y, Le Q, Lin Q, Takebayashi K, Hirata M, Tanihara F, Thongkittidilok C, Otoi T. Improvement of the in vitro fertilization and embryo development using frozen-thawed spermatozoa of microminipigs. Arch Anim Breed 2021; 64:265-271. [PMID: 34189254 PMCID: PMC8223014 DOI: 10.5194/aab-64-265-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 05/25/2021] [Indexed: 11/17/2022] Open
Abstract
This study aimed to compare the quality and the penetration ability of frozen-thawed spermatozoa from three microminipigs and Large White boars and to evaluate the effects of caffeine and heparin as well as the sperm-oocyte co-incubation length on the fertilization and embryonic development in vitro. Results showed that the fertilization rates of spermatozoa from three microminipig boars were significantly lower than those of a Large White boar. In the post-thaw spermatozoa from one of three microminipig boars, the sperm quality, penetration ability, and the oocyte development after in vitro fertilization were significantly lower than those of the spermatozoa from other boars. The caffeine supplementation in the fertilization media increased the rates of fertilization and blastocyst formation for the microminipig spermatozoa with low sperm quality. In addition to caffeine supplementation, the rates of fertilization and blastocyst formation after using microminipig spermatozoa were significantly higher with a 10 h sperm-oocyte co-incubation than with 3 h of co-incubation length. Our results indicate that the differences between the males and the breed influence the quality and fertility of frozen-thawed boar spermatozoa. In conclusion, the presence of caffeine in the in vitro fertilization (IVF) medium and adequate length of sperm-oocyte co-incubation may have beneficial effects for improving IVF results when using microminipig spermatozoa with low quality.
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Affiliation(s)
- Zhao Namula
- Faculty of Veterinary Science, Guangdong Ocean University, Zhanjiang,
China
- Faculty of Bioscience and Bioindustry, Tokushima University,
Tokushima, Japan
| | - Yasuhiro Isumi
- Faculty of Bioscience and Bioindustry, Tokushima University,
Tokushima, Japan
| | - Yoko Sato
- School of Biological Science, Tokai University, Sapporo, Japan
| | - Quynh Anh Le
- Faculty of Bioscience and Bioindustry, Tokushima University,
Tokushima, Japan
| | - Qingyi Lin
- Faculty of Bioscience and Bioindustry, Tokushima University,
Tokushima, Japan
| | - Koki Takebayashi
- Faculty of Bioscience and Bioindustry, Tokushima University,
Tokushima, Japan
| | - Maki Hirata
- Faculty of Veterinary Science, Guangdong Ocean University, Zhanjiang,
China
- Faculty of Bioscience and Bioindustry, Tokushima University,
Tokushima, Japan
| | - Fuminori Tanihara
- Faculty of Veterinary Science, Guangdong Ocean University, Zhanjiang,
China
- Faculty of Bioscience and Bioindustry, Tokushima University,
Tokushima, Japan
| | | | - Takeshige Otoi
- Faculty of Veterinary Science, Guangdong Ocean University, Zhanjiang,
China
- Faculty of Bioscience and Bioindustry, Tokushima University,
Tokushima, Japan
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12
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Evaluation of α5β1 integrin as a candidate marker for fertility in bull sperm samples. Theriogenology 2021; 168:66-74. [PMID: 33862426 DOI: 10.1016/j.theriogenology.2021.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/28/2021] [Accepted: 04/01/2021] [Indexed: 02/07/2023]
Abstract
With the progressive increase in the use of reproductive biotechnologies in the cattle industry, like artificial insemination and in vitro embryo production, the accurate determination of fertilizing competence of cryopreserved sperm samples is an essential issue. The routine methodology to assess bull sperm quality relies primarily on count, viability and motility of spermatozoa. However, these parameters do not tightly predict the reproductive success of samples. Therefore, identification of complementary markers of sperm functionality to strengthen the predictability of traditional spermogram is desirable to improve livestock reproduction practices. Previous results from our laboratory indicated that α5β1 integrin plays a key role in bovine sperm function and mediates their interaction with the female reproductive tract. Thus, this study aimed to investigate whether the localization of α5β1 held a correlation with fertilizing ability of bovine cryopreserved semen samples. Firstly, we assessed the quality of samples from six different bulls (A-F). We determined motility and viability of sperm samples after thawing and selection. Additionally, we measured the capacitation state of the samples by chlortetracycline (CTC) assay in the presence or absence of heparin, as an indicator of their responsiveness to a capacitating stimulus. Based on these assays, samples were classified being A the bull with the lowest quality and F the bull with the highest quality. Then, we studied the presence and localization of α5β1 integrin. This protein showed a distribution pattern in the acrosomal (A), post-acrosomal (P) and acrosomal + post-acrosomal (A + P) regions with different localization percentages among the studied samples. Next, we determined the fertilizing ability of the samples in in vitro fertilization (IVF) assays and performed correlation analyses between IVF outcome and the routine spermogram parameters or α5β1 integrin localization patterns. When the percentage of cells showing α5β1 integrin was compared to fertilization rate, no correlation was observed. However, the presence of α5β1 integrin in P and A + P regions (PA pattern), positively correlated with IVF rate (p < 0.05). These results suggest that while routine semen analyses failed to predict sperm reproductive competence, integrin localization in post-acrosomal region (PA pattern) showed a positive correlation with IVF outcome, thus posing an attractive marker to predict more accurately the reproductive performance of an individual.
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13
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Narud B, Khezri A, Zeremichael TT, Stenseth EB, Heringstad B, Johannisson A, Morrell JM, Collas P, Myromslien FD, Kommisrud E. Sperm chromatin integrity and DNA methylation in Norwegian Red bulls of contrasting fertility. Mol Reprod Dev 2021; 88:187-200. [PMID: 33634579 DOI: 10.1002/mrd.23461] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/18/2021] [Accepted: 02/10/2021] [Indexed: 12/28/2022]
Abstract
In this study, the complexity of chromatin integrity was investigated in frozen-thawed semen samples from 37 sires with contrasting fertility, expressed as 56-day non-return rates (NR56). Protamine deficiency, thiols, and disulfide bonds were assessed and compared with previously published data for DNA fragmentation index (DFI) and high DNA stainability (HDS). In addition, in vitro embryo development and sperm DNA methylation were assessed using semen samples from 16 of these bulls. The percentages of DFI and HDS were negatively associated with NR56 and cleavage rate and positively associated with sperm protamine deficiency (p < 0.05). Significant differences in cleavage and blastocyst rates were observed between bulls of high and low NR56. However, once fertilization occurred, further development into blastocysts was not associated with NR56. The differential methylation analysis showed that spermatozoa from bulls of low NR56 were hypermethylated compared to bulls of high NR56. Pathway analysis showed that genes annotated to differentially methylated cytosines could participate in different biological pathways and have important biological roles related to bull fertility. In conclusion, sperm cells from Norwegian Red bulls of inferior fertility have less compact chromatin structure, higher levels of DNA damage, and are hypermethylated compared with bulls of superior fertility.
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Affiliation(s)
- Birgitte Narud
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.,Department of Biotechnology, Inland Norway University of Applied Sciences, Hamar, Norway
| | - Abdolrahman Khezri
- Department of Biotechnology, Inland Norway University of Applied Sciences, Hamar, Norway
| | | | - Else-Berit Stenseth
- Department of Biotechnology, Inland Norway University of Applied Sciences, Hamar, Norway
| | - Bjørg Heringstad
- Department of Animal and Aquacultural Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
| | - Anders Johannisson
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Jane M Morrell
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Philippe Collas
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.,Department of Immunology and Transfusion Medicine, Oslo University Hospital, Oslo, Norway
| | | | - Elisabeth Kommisrud
- Department of Biotechnology, Inland Norway University of Applied Sciences, Hamar, Norway
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14
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Khan IM, Cao Z, Liu H, Khan A, Rahman SU, Khan MZ, Sathanawongs A, Zhang Y. Impact of Cryopreservation on Spermatozoa Freeze-Thawed Traits and Relevance OMICS to Assess Sperm Cryo-Tolerance in Farm Animals. Front Vet Sci 2021; 8:609180. [PMID: 33718466 PMCID: PMC7947673 DOI: 10.3389/fvets.2021.609180] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 02/01/2021] [Indexed: 12/12/2022] Open
Abstract
Sperm cryopreservation is a powerful tool for the livestock breeding program. Several technical attempts have been made to enhance the efficiency of spermatozoa cryopreservation in different farm animal species. However, it is well-recognized that mammalian spermatozoa are susceptible to cryo-injury caused by cryopreservation processes. Moreover, the factors leading to cryo-injuries are complicated, and the cryo-damage mechanism has not been methodically explained until now, which directly influences the quality of frozen–thawed spermatozoa. Currently, the various OMICS technologies in sperm cryo-biology have been conducted, particularly proteomics and transcriptomics studies. It has contributed while exploring the molecular alterations caused by cryopreservation, identification of various freezability markers and specific proteins that could be added to semen diluents before cryopreservation to improve sperm cryo-survival. Therefore, understanding the cryo-injury mechanism of spermatozoa is essential for the optimization of current cryopreservation processes. Recently, the application of newly-emerged proteomics and transcriptomics technologies to study the effects of cryopreservation on sperm is becoming a hotspot. This review detailed an updated overview of OMICS elements involved in sperm cryo-tolerance and freeze-thawed quality. While also detailed a mechanism of sperm cryo-injury and utilizing OMICS technology that assesses the sperm freezability potential biomarkers as well as the accurate classification between the excellent and poor freezer breeding candidate.
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Affiliation(s)
- Ibrar Muhammad Khan
- Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Zubing Cao
- Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Hongyu Liu
- Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Adnan Khan
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agriculture Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Sajid Ur Rahman
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Laboratory of Quality and Safety Risk Assessment for Animal Products on Biohazards (Shanghai) of Ministry of Agricultural Sciences, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Muhammad Zahoor Khan
- State Key Laboratory of Animal Nutrition, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agriculture University, Beijing, China
| | - Anucha Sathanawongs
- Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Yunhai Zhang
- Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
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15
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Amelioration of heat stress-induced damage to testes and sperm quality. Theriogenology 2020; 158:84-96. [PMID: 32947064 DOI: 10.1016/j.theriogenology.2020.08.034] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 08/26/2020] [Accepted: 08/28/2020] [Indexed: 12/19/2022]
Abstract
Heat stress (HS) occurs when temperatures exceed a physiological range, overwhelming compensatory mechanisms. Most mammalian testes are ∼4-5 °C cooler than core body temperature. Systemic HS or localized warming of the testes affects all types of testicular cells, although germ cells are more sensitive than either Sertoli or Leydig cells. Increased testicular temperature has deleterious effects on sperm motility, morphology and fertility, with effects related to extent and duration of the increase. The major consequence of HS on testis is destruction of germ cells by apoptosis, with pachytene spermatocytes, spermatids and epididymal sperm being the most susceptible. In addition to the involvement of various transcription factors, HS triggers production of reactive oxygen species (ROS), which cause apoptosis of germ cells and DNA damage. Effects of HS on testes can be placed in three categories: testicular cells, sperm quality, and ability of sperm to fertilize oocytes and support development. Various substances have been given to animals, or added to semen, in attempts to ameliorate heat stress-induced damage to testes and sperm. They have been divided into various groups according to their composition or activity, as follows: amino acids, antibiotics, antioxidant cocktails, enzyme inhibitors, hormones, minerals, naturally produced substances, phenolic compounds, traditional herbal medicines, and vitamins. Herein, we summarized those substances according to their actions to mitigate HS' three main mechanisms: oxidative stress, germ cell apoptosis, and sperm quality deterioration and testicular damage. The most promising approaches are to use substances that overcome these mechanisms, namely reducing testicular oxidative stress, reducing or preventing apoptosis and promoting recovery of testicular tissue and restoring sperm quality. Although some of these products have considerable promise, further studies are needed to clarify their ability to preserve or restore fertility following HS; these may include more advanced sperm analysis techniques, e.g. sperm epigenome or proteome, or direct assessment of fertilization and development, including in vitro fertilization or breeding data (either natural service or artificial insemination).
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16
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Saini M, Sheoran S, Vijayalakshmy K, Rajendran R, Kumar D, Kumar P, Sharma RK, Kumar R, Mohnaty TK, Selokar NL, Yadav PS. Semen parameters and fertility potency of a cloned water buffalo (Bubalus bubalis) bull produced from a semen-derived epithelial cell. PLoS One 2020; 15:e0237766. [PMID: 32822364 PMCID: PMC7444531 DOI: 10.1371/journal.pone.0237766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 08/04/2020] [Indexed: 11/18/2022] Open
Abstract
Semen contains epithelial cells that can be cultured in vitro. For somatic cell nuclear transfer applications, it is essential to know whether clone(s) produced from semen-derived epithelial cells (SedECs) are healthy and reproductively competent. In this study, the semen and fertility profile of a cloned bull (C1) that was produced from a SedEC were compared with its donor (D1) and with two cloned bulls (C2, C3) that were produced from commonly used skin-derived fibroblast cells (SkdFCs). We observed variations in some fresh semen parameters (ejaculated volume and mass motility), frozen-thawed sperm parameters (plasma membrane integrity, and computer-assisted semen analysis (CASA) indices), but values are within the normal expected range. There was no difference in sperm concentration of ejaculated semen and frozen-thawed semen parameters which include sperm motility, percentage of live and normal morphology sperm, and distance traveled through oestrus mucus. Following in vitro fertilization (IVF) experiments, zygotes from C1 had higher (P < 0.05) cleavage rates (81%) than C2, C3, and D1 (71%, 67%, and 75%, respectively); however, blastocyst development per cleaved embryo and quality of produced blastocysts did not differ. The conception rate of C1 was 46% (7/15) and C2 was 50% (8/15) following artificial insemination with frozen-thawed semen. Established pregnancies resulted in births of 7 and 6 progenies sired by C1 and C2, respectively, and all calves show no signs of phenotypical abnormalities. These results showed that semen from a cloned bull derived from SedECs is equivalent to semen from its donor bull and bulls cloned from SkdFCs.
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Affiliation(s)
- Monika Saini
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Suman Sheoran
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Kennady Vijayalakshmy
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Rasika Rajendran
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Dharmendra Kumar
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Pradeep Kumar
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Rakesh Kumar Sharma
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Rajesh Kumar
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Tushar K. Mohnaty
- Artificial Breeding Research Center, ICAR-National Dairy Research Institute, Karnal, India
| | - Naresh L. Selokar
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
- * E-mail: (NLS); (PSY)
| | - Prem Singh Yadav
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
- * E-mail: (NLS); (PSY)
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17
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Residiwati G, Tuska HSA, Kawai GKV, Seifi-Jamadi A, Santoro D, Leemans B, Boccart C, Pascottini OB, Opsomer G, Van Soom A. Practical methods to assess the effects of heat stress on the quality of frozen-thawed Belgian Blue semen in field conditions. Anim Reprod Sci 2020; 221:106572. [PMID: 32861122 DOI: 10.1016/j.anireprosci.2020.106572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 02/07/2023]
Abstract
The increased exportation of semen and embryos of double-muscled beef breeds to tropical and developing countries makes it important to investigate the reproductive capacity of these breeds in adapting to tropical conditions. The aim of this study was to evaluate the quality of Belgian Blue semen collected after there is heat-stress (HS; as a mimic of tropical condition) compared with non-heat stressed (NHS; as their comfort zone), using practical spermatozoa staining methods such that prevail in developing countries. There was screening of semen kinetics using CASA and evaluation of their DNA-, acrosome, plasma membrane-integrity, and mitochondrial activity. For each staining technique, there was evaluation of 12 frozen-thawed semen samples from six Belgian Blue bulls collected after there were HS and NHS conditions in Belgium. Mixed linear regression models were used to assess the effects of HS for each CASA variable and staining method outcome using the replicate nested with bull as a random effect. There were differences (P < 0.05) in values when there were semen collections following HS and NHS conditions for several post-thawing kinetic variables. Furthermore, the mean percentages of DNA-, acrosome-, and plasma membrane-integrity, as well as mitochondrial activity were greater (P < 0.05) when semen was collected following NHS compared with HS conditions. Conclusively, results indicated that when there was collection of semen following HS conditions, there were detrimental effects on the viability and quality of Belgian Blue semen which is an important consideration for the semen collection, processing, and evaluation in tropical countries.
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Affiliation(s)
- Gretania Residiwati
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, 9820 Merelbeke, Belgium.
| | - Habib S A Tuska
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, 9820 Merelbeke, Belgium
| | - Giulia K V Kawai
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, 9820 Merelbeke, Belgium
| | - Afshin Seifi-Jamadi
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, 9820 Merelbeke, Belgium; Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj 31587-77871, Iran
| | - Davide Santoro
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, 9820 Merelbeke, Belgium
| | - Bart Leemans
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, 9820 Merelbeke, Belgium; Utrecht University, 3512 JE Utrecht, the Netherlands
| | | | - Osvaldo Bogado Pascottini
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, 9820 Merelbeke, Belgium; Department of Veterinary Sciences, Gamete Research Center, Veterinary Physiology and Biochemistry, University of Antwerp, Wilrijk, Belgium
| | - Geert Opsomer
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, 9820 Merelbeke, Belgium
| | - Ann Van Soom
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, 9820 Merelbeke, Belgium
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18
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Sabés-Alsina M, Wallgren M, Sjunnesson YCB, Ntallaris T, Lundeheim N, López-Béjar M, Morrell JM. Effect of season on the in vitro fertilizing ability of frozen-thawed Spanish bovine spermatozoa. J Dairy Sci 2020; 103:9525-9533. [PMID: 32747095 DOI: 10.3168/jds.2020-18472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/19/2020] [Indexed: 11/19/2022]
Abstract
The purpose of the present study was to evaluate the effects of season on the in vitro fertilizing ability of bovine spermatozoa and subsequent embryo development. Bovine oocytes were matured and fertilized in vitro with Holstein dairy bull sperm cells collected and frozen in different seasons (winter, spring, and summer). On d 2 and 8 postinsemination, cleavage and blastocyst rates, respectively, were recorded; the blastocysts were graded for morphology. The number of sperm cells binding to the zona pellucida of oocytes, together with the number of nuclei in the developing blastocysts, were assessed after staining with Hoechst. No significant differences were observed among seasons in cleavage and embryo development rate. However, the proportion of "advanced blastocysts" was significantly higher in spring compared with winter and summer, with a corresponding decrease in the proportion of early blastocysts in spring compared with winter and summer. The number of sperm cells binding per oocyte was significantly lower in the oocytes inseminated with sperm samples collected in summer compared with winter or spring. Moreover, a significant interaction was observed in the number of sperm cells binding per oocyte between bull and season. Although no significant differences were observed among seasons in the number of nuclei per blastocyst, a significant interaction was observed between bull and season for this variable. Embryo development rate in in vitro fertilization appeared to be affected by season of semen collection, with sperm samples collected in spring being associated with a higher proportion of advanced blastocysts and better morphology than those collected at other times of the year.
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Affiliation(s)
- M Sabés-Alsina
- Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences (SLU), SE-75007 Uppsala, Sweden; Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain
| | - M Wallgren
- Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences (SLU), SE-75007 Uppsala, Sweden
| | - Y C B Sjunnesson
- Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences (SLU), SE-75007 Uppsala, Sweden
| | - T Ntallaris
- Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences (SLU), SE-75007 Uppsala, Sweden; Ambulatory Clinic, University Animal Hospital (UDS), SLU, SE-75007 Uppsala, Sweden
| | - N Lundeheim
- Department of Animal Breeding and Genetics, SLU, SE-75007 Uppsala, Sweden
| | - M López-Béjar
- Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain; College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA 91766
| | - J M Morrell
- Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences (SLU), SE-75007 Uppsala, Sweden.
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19
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Ghanem N, Salilew-Wondim D, Hoelker M, Schellander K, Tesfaye D. Transcriptome profile and association study revealed STAT3 gene as a potential quality marker of bovine gametes. ZYGOTE 2020; 28:1-15. [PMID: 31928565 DOI: 10.1017/s0967199419000765] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The present study was aimed to investigate differences in molecular signatures in oocytes derived from Holstein-Friesian heifers with different genetic merit for fertility, euthanized during day 0 or day 12 of the estrous cycle. Moreover, association between single nucleotide polymorphisms (SNPs) of ODC1 and STAT3 genes and bull fertility traits was investigated. The gene expression patterns were analyzed using cDNA array and validated with quantitative real-time polymerase chain reaction (PCR). The result revealed that several genes have shown not only to be regulated by fertility merit but also by the day of oocyte recovery during the estrous cycle. The STAT3 gene was found to be upregulated in oocytes recovered from animals with high fertility merit at both day 0 and day 12. Some other genes like PTTG1, ODC1 and TUBA1C were downregulated at day 0 and upregulated at day 12 in high, compared with low, fertility merit recovered oocytes. In contrast, the transcript abundance of TPM3 was upregulated at day 0 and downregulated at day 12 in high, compared with low, fertility merit recovered oocytes. In addition, ODC1 and STAT3 were found to be associated (P < 0.05) with sperm quality traits as well as flow cytometry parameters. Therefore, the expression of several candidate genes including ODC1 and STAT3 was related to the genetic merit of the cow. In addition polymorphisms in these two genes were found to be associated with bull semen quality.
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Affiliation(s)
- Nasser Ghanem
- Animal Production Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Dessie Salilew-Wondim
- Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, 53115Bonn, Germany
| | - Michael Hoelker
- Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, 53115Bonn, Germany
| | - Karl Schellander
- Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, 53115Bonn, Germany
| | - Dawit Tesfaye
- Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, 53115Bonn, Germany
- Department of Biomedical Sciences, Animal Reproduction and Biotechnology Laboratory (ARBL), Colorado State University, Fort Collins, CO, USA
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20
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Abstract
Somatic cell nuclear transfer (SCNT) technology provides an opportunity to multiply superior animals that could speed up dissemination of favorable genes into the population. In the present study, we attempted to reproduce a superior breeding bull of Murrah buffalo, the best dairy breed of buffalo, using donor cells that were established from tail-skin biopsy and seminal plasma. We studied several parameters such as cell cycle stages, histone modifications (H3K9ac and H3K27me3) and expression of developmental genes in donor cells to determine their SCNT reprogramming potentials. We successfully produced the cloned bull from an embryo that was produced from the skin-derived cell. Growth, blood hematology, plasma biochemistries, and reproductive organs of the produced cloned bull were found normal. Subsequently, the bull was employed for semen production. Semen parameters such as CASA (Computer Assisted Semen Analysis) variables and in vitro fertilizing ability of sperms of the cloned bull were found similar to non-cloned bulls, including the donor bull. At present, we have 12 live healthy progenies that were produced using artificial insemination of frozen semen of the cloned bull, which indicate that the cloned bull is fertile and can be utilized in the buffalo breeding schemes. Taken together, we demonstrate that SCNT can be used to reproduce superior buffalo bulls.
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21
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Hollinshead FK, Hanlon DW. Factors affecting the reproductive performance of bitches: A prospective cohort study involving 1203 inseminations with fresh and frozen semen. Theriogenology 2017; 101:62-72. [PMID: 28708517 DOI: 10.1016/j.theriogenology.2017.06.021] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 06/20/2017] [Accepted: 06/20/2017] [Indexed: 11/27/2022]
Abstract
The aim of this prospective cohort study was to utilize multivariable statistical methods to identify factors that significantly affected whelping rate, litter size and gestation length in a large population of bitches of many different breeds, presented for routine breeding management. In addition, we aimed to determine the incidence of dystocia and the proportion of bitches undergoing a caesarean section procedure. A total of 1146 individual bitches representing 84 different breeds contributed 1203 inseminations over the 9 year (2007-2015) study period. Bitches were inseminated with either frozen-thawed (n = 645), fresh (n = 543) or chilled (n = 15) semen from 1371 different males. The mean (SD) whelping rate was 74± 4% and the mean litter size was 5.8 ± 3.1 pups per litter for all bitches in the study. The whelping rate was significantly lower in bitches inseminated with frozen-thawed semen compared with bitches inseminated with fresh semen (71% vs 80% respectively; P < 0.001). Semen that was classified as having poor motility (<30% progressive) resulted in a significantly lower whelping rate (37%) than semen classified as good (30-65% progressive; whelping rate = 67%) or excellent (>65% progressive; whelping rate = 79%). There was a linear decline in whelping rate with advancing age. Greyhounds and Labradors demonstrated a significantly higher whelping rate (88% and 94% respectively) compared with all other breeds (71.3%, P < 0.001). Bitches inseminated with frozen-thawed semen had significantly smaller litter sizes than bitches inseminated with fresh semen (5.4 ± 3.1 vs 6.2 ± 3.0 pups per litter respectively; P = 0.02). Smaller breeds had significantly smaller litters (4.4 ± 2.1 pups) than medium (5.2 ± 2.9 pups), large (5.9 ± 2.9 pups) or giant (6.7 ± 3.8 pups) breeds. For each advancing year of age, litter size decreased by 0.13 pups per litter. The mean (SD) gestation length from LH0 was 65 ± 1.9 d. Greyhounds had a significantly longer pregnancy duration (68.0 ± 1.5 d) than other breeds. For each additional year of bitch age, gestation length increased by 0.11 days (P < 0.01), and for each additional pup per litter, gestation length was reduced by 0.08 days (P < 0.05). Of the 890 bitches for which whelping outcomes were recorded; 409 (46%) whelped normally without assistance, 249 (28%) had an elective C-section, 205 (23%) underwent an emergency C-section and 27 (3%) were medically managed or required veterinary assistance for dystocia. Brachycephalic breeds were 11.3 (95CI = 9.3-17.9; P < 0.001) times more likely to have a C-section compared to all other breeds. Bitches with litter sizes of one or two pups had a C-section rate of 83%, whereas bitches with litter sizes of three or more pups had a C-section rate of 43% (P < 0.001). This study provides important clinical information to optimise whelping rates, litter size and the prediction of whelping in certain breeds for clinicians working in canine reproduction.
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Affiliation(s)
- F K Hollinshead
- GlenBred, Matamata Veterinary Services, 26 Tainui St, Matamata, 3400, New Zealand.
| | - D W Hanlon
- GlenBred, Matamata Veterinary Services, 26 Tainui St, Matamata, 3400, New Zealand
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22
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Variability in in vitro fertilization outcomes of prepubertal goat oocytes explained by basic semen analyses. ZYGOTE 2016; 24:831-838. [PMID: 27417889 DOI: 10.1017/s0967199416000162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This work analyses the changes that caprine spermatozoa undergo during in vitro fertilization (IVF) of in vitro matured prepubertal goat oocytes and their relationship with IVF outcome, in order to obtain an effective model that allows prediction of in vitro fertility on the basis of semen assessment. The evolution of several sperm parameters (motility, viability and acrosomal integrity) during IVF and their relationship with three IVF outcome criteria (total penetration, normal penetration and cleavage rates) were studied in a total of 56 IVF replicates. Moderate correlation coefficients between some sperm parameters and IVF outcome were observed. In addition, stepwise multiple regression analyses were conducted that considered three grouping of sperm parameters as potential explanatory variables of the three IVF outcome criteria. The proportion of IVF outcome variation that can be explained by the fitted models ranged from 0.62 to 0.86, depending upon the trait analysed and the variables considered. Seven out of 32 sperm parameters were selected as partial covariates in at least one of the nine multiple regression models. Among these, progressive sperm motility assessed immediately after swim-up, the percentage of dead sperm with intact acrosome and the incidence of acrosome reaction both determined just before the gamete co-culture, and finally the proportion of viable spermatozoa at 17 h post-insemination were the most frequently selected sperm parameters. Nevertheless, the predictive ability of these models must be confirmed in a larger sample size experiment.
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de Vasconcelos Franco JS, Faheem M, Chaveiro A, Moreira da Silva F. Effects of α-tocopherol and freezing rates on the quality and heterologous in vitro fertilization capacity of stallion sperm after cryopreservation. Theriogenology 2016; 86:957-962. [PMID: 27125690 DOI: 10.1016/j.theriogenology.2016.03.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 03/12/2016] [Accepted: 03/12/2016] [Indexed: 10/22/2022]
Abstract
The effects of supplementation of α-tocopherol and different freezing rates (FRs) on the ability of stallion sperm to fertilize bovine oocytes with intact zona pellucida were investigated, in an attempt to develop a model to assess cryopreserved sperm function. Semen was obtained from four purebred Lusitano stallions (n = 4). Each ejaculate was subjected to cryopreservation with a commercial extender (Ghent, Minitub Iberia, Spain), without any supplementation (control) or supplemented with 2-mM α-tocopherol. The semen was exposed to two different FRs between 5 °C and -15 °C: slow (5 °C/min) and moderate (10 °C/min). After thawing, the viability (SYBR®-14 and propidium iodide [PI]), mitochondrial membrane potential (JC-1, 5,5',6,6'-tetrachloro-1,1',3,3'tetraethylbenzimidazolyl carbocyanine iodine) and membrane lipid peroxidation (C11-BODIPY(581/591)) of each sample were determined by flow cytometry. Moreover, the heterologous IVF rate was measured to evaluate the fertilization capacity of postthaw semen in the four different treatments. For both extenders, the viability was higher for spermatozoa cooled slowly (39.40 ± 2.17 vs. 17.59 ± 2.25-control; 31.96 ± 2.19 vs. 11.46 ± 1.34-Tocopherol; P < 0.05). The α-tocopherol extender improved (P < 0.05) postthaw lipid peroxidation (10.28 ± 0.70 vs. 15.40 ± 0.95-slow FR; 10.14 ± 0.40 vs. 13.48 ± 0.34-moderate FR); however, it did not improve viability and mitochondrial membrane potential. Regarding the IVF rate, in the moderate FR, α-tocopherol supplementation reported a higher percentage of IVF (20.50 ± 2.11; P < 0.05), comparing with the control (14.00 ± 1.84). Regarding the slow FR, no significance differences were observed for percentage of IVF between the two extenders and the FRs. However, it seems that the α-tocopherol supplementation improved the IVF rate. In conclusion, this research reported that bovine oocytes intact zona pellucida can be used to evaluate the quality of postthaw stallion semen and α-tocopherol supplementation in the stallion freezing extender might exert a protective effect against oxidative damage during heterologous IVF.
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Affiliation(s)
- J S de Vasconcelos Franco
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, CITA-A, Angra do Heroísmo, Portugal.
| | - M Faheem
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, CITA-A, Angra do Heroísmo, Portugal; Animal Production Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - A Chaveiro
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, CITA-A, Angra do Heroísmo, Portugal
| | - F Moreira da Silva
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, CITA-A, Angra do Heroísmo, Portugal
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Dance A, Thundathil J, Blondin P, Kastelic J. Enhanced early-life nutrition of Holstein bulls increases sperm production potential without decreasing postpubertal semen quality. Theriogenology 2016; 86:687-694.e2. [PMID: 27114168 DOI: 10.1016/j.theriogenology.2016.02.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/22/2016] [Accepted: 02/26/2016] [Indexed: 11/28/2022]
Abstract
Enhanced early-life nutrition (∼130% of required energy and protein) increased testes size and weight (∼20-25%) and reduced age at puberty (∼1 month) in beef and dairy bulls, compared with those fed 70% of dietary requirements. The objective was to determine effects of early-life (2-31 weeks) nutritional modulation on feed costs, predicted number of harvestable sperm and doses of semen, and semen quality. Calves (∼1 week old) were randomly allocated into three groups that were fed 4, 6, or 8 L/day of milk (low [n = 8], medium [n = 9], and high groups [n = 9], respectively) from ages 2 to 8 weeks. Thereafter, they were weaned, transitioned onto barley silage-based diets, to receive ∼70, 100, or 130% of recommended amounts of energy and protein (feed costs were ∼CDN$280 more per bull to feed high versus low diets from 2 to 31 weeks). After 31 weeks, all bulls were fed a medium diet. Semen was collected, by electroejaculation, from 51 to 73 weeks, extended, chilled, and cryopreserved. Bulls fed high nutrition were numerically younger (P = 0.45) at sexual maturity (sperm with ≥30% progressive motility, ≥70% morphologically normal, and ≤20% abnormal heads), first acceptable post-chill sperm motility (>50%; P = 0.66) and first acceptable post-thaw motility (>25% progressive; P = 0.25) than bulls in the low-nutrition group. Semen from three bulls per group was used for in vitro fertilization (total of 1249 bovine oocytes); there were no significant differences among groups in fertilization percentage (mean ± SEM of 68.0 ± 8.7, 77.1 ± 3.5, and 68.7 ± 4.5% for low, medium, and high, respectively) or blastocyst yield (31.5 ± 5.6, 41.4 ± 4.9, and 33.7 ± 4.6%). On the basis of analysis of 2D gels of sperm proteins, 380 spots were identified on the fused master gel, but no spots were differentially expressed across groups. Overall, there were no significant differences in semen quality or sperm function among bulls fed three levels of nutrition from ages 2 to 31 weeks. However, bulls fed high-nutrition early in life had potential to produce more sperm that could be harvested and sold, which would increase profitability, thereby supporting enhanced early-life nutrition as a management tool to improve reproductive potential of dairy bulls.
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Affiliation(s)
- Alysha Dance
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Jacob Thundathil
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | | | - John Kastelic
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada.
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David I, Kohnke P, Lagriffoul G, Praud O, Plouarboué F, Degond P, Druart X. Mass sperm motility is associated with fertility in sheep. Anim Reprod Sci 2015; 161:75-81. [PMID: 26364125 DOI: 10.1016/j.anireprosci.2015.08.006] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/17/2015] [Accepted: 08/19/2015] [Indexed: 11/18/2022]
Abstract
The study was to focus on the relationship between wave motion (mass sperm motility, measured by a mass sperm motility score, manually assessed by artificial insemination (AI) center operators) and fertility in male sheep. A dataset of 711,562 artificial inseminations performed in seven breeds by five French AI centers during the 2001-2005 time period was used for the analysis. Factors influencing the outcome of the insemination, which is a binary response observed at lambing of either success (1) or failure (0), were studied using a joint model within each breed and AI center (eight separate analyses). The joint model is a multivariate model where all information related to the female, the male and the insemination process were included to improve the estimation of the factor effects. Results were consistent for all analyses. The male factors affecting AI results were the age of the ram and the mass motility. After correction for the other factors of variation, the lambing rate increased quasi linearly from three to more than ten points with the mass sperm motility score depending on the breed and the AI center. The consistency of the relationship for all breeds indicated that mass sperm motility is predictive of the fertility resulting when sperm are used from a specific ejaculate. Nonetheless, predictability could be improved if an objective measurement of mass sperm motility were available as a substitute for the subjective scoring currently in use in AI centers.
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Affiliation(s)
- Ingrid David
- INRA, GenPhySE (Génétique, Physiologie et Systèmes d'Elevage), F-31326 Castanet-Tolosan, France; Université de Toulouse, INP, ENSAT, GenPhySE (Génétique, Physiologie et Systèmes d'Elevage), F-31326 Castanet-Tolosan, France; Université de Toulouse, INP, ENVT, GenPhySE (Génétique, Physiologie et Systèmes d'Elevage), F-31076 Toulouse, France.
| | - Philippa Kohnke
- INRA, CNRS, Université de Tours, Haras Nationaux, SPARC (Station de Physiologie de la Reproduction et des Comportements), 37380 Nouzilly, France
| | - Gilles Lagriffoul
- Institut de l'Elevage, ANIO, BP 42118, 31320 Castanet-Tolosan, France
| | - Olivier Praud
- Université de Toulouse - INPT-UPS, Institut de Mécanique des Fluides, 31000 Toulouse, France
| | - Franck Plouarboué
- Université de Toulouse - INPT-UPS, Institut de Mécanique des Fluides, 31000 Toulouse, France
| | - Pierre Degond
- Department of Mathematics, Imperial College London, London SW7 2AZ, United Kingdom
| | - Xavier Druart
- INRA, CNRS, Université de Tours, Haras Nationaux, SPARC (Station de Physiologie de la Reproduction et des Comportements), 37380 Nouzilly, France
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26
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Sarsaifi K, Haron AW, Vejayan J, Yusoff R, Hani H, Omar MA, Hong LW, Yimer N, Ju TY, Othman AM. Two-dimensional polyacrylamide gel electrophoresis of Bali bull (Bos javanicus) seminal plasma proteins and their relationship with semen quality. Theriogenology 2015; 84:956-68. [PMID: 26119476 DOI: 10.1016/j.theriogenology.2015.05.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 05/20/2015] [Accepted: 05/30/2015] [Indexed: 10/23/2022]
Abstract
The present study evaluated the relationship between Bali bull (Bos javanicus) seminal plasma proteins and different semen quality parameters. Semen samples from 10 mature Bali bulls were evaluated for conventional semen parameters (general motility, viability, and normal morphology), sperm functionality (acrosome reaction, sperm penetration rate, sperm penetration index), sperm kinetics (computer-assisted semen analysis parameters such as sperm velocity), and sperm morphology (acrosome and membrane integrity). Frozen-thawed semen with higher sperm motility, viability, acrosome integrity, and membrane integrity (P < 0.05) are consistently higher in acrosome reaction and sperm penetration assay. Three bulls showed the highest, four bulls displayed the medium, and the remaining three bulls showed the lowest for all sperm parameters and SPA. The proteome maps of seminal plasma from high-quality and low-quality Bali bulls were also established. Seminal plasma of both high-quality and low-quality Bali bulls was subjected to two-dimensional SDS-PAGE with isoelectric point ranged from 3 to 10 and molecular weight from 10 to 250 kDa. Approximately 116 spots were detected with Blue Silver stain, and of these spots, 29 were selected and identified by MALDI-TOF/TOF-MS/MS. A majority of the proteins visualized in the seminal plasma two-dimensional maps was successfully identified. An essential group of the identified spots represented binder of sperm 1 (BSP1), clusterin, spermadhesin, tissue inhibitor of metalloproteinases 2 (TIMP-2), and phospholipase A2 (PLA2). Other proteins found in high abundance included seminal ribonuclease, serum albumin, cationic trypsin, and peptide similar to β2 microglobulin. Thus, a reference map of Bali bull seminal plasma proteins has been generated for the very first time and can be used to relate protein pattern changes to physiopathologic events that may influence Bali bull reproductive performance.
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Affiliation(s)
- Kazhal Sarsaifi
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Abd Wahid Haron
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Jaya Vejayan
- Department of Industrial Biotechnology, Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, Kuantan, Pahang Darul Makmur, Malaysia
| | - Rosnina Yusoff
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.
| | - Homayoun Hani
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Mohamed Ariff Omar
- Department of Veterinary Preclinical Science, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Lai Wei Hong
- Agro-Biotechnology Institute Malaysia (ABI), Malaysian Agricultural Research and Development Institute, Serdang, Selangor, Malaysia
| | - Nurhusien Yimer
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Tan Ying Ju
- Strategic Livestock Research Centre, Malaysian Agricultural Research and Development Institute (MARDI), Serdang, Selangor, Malaysia
| | - Abas-Mazni Othman
- Agro-Biotechnology Institute Malaysia (ABI), Malaysian Agricultural Research and Development Institute, Serdang, Selangor, Malaysia
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27
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Daigneault BW, McNamara KA, Purdy PH, Krisher RL, Knox RV, Rodriguez-Zas SL, Miller DJ. Enhanced fertility prediction of cryopreserved boar spermatozoa using novel sperm function assessment. Andrology 2015; 3:558-68. [PMID: 25914302 DOI: 10.1111/andr.12035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 02/14/2015] [Accepted: 03/02/2015] [Indexed: 11/28/2022]
Abstract
Due to reduced fertility, cryopreserved semen is seldom used for commercial porcine artificial insemination (AI). Predicting the fertility of individual frozen ejaculates for selection of higher quality semen prior to AI would increase overall success. Our objective was to test novel and traditional laboratory analyses to identify characteristics of cryopreserved spermatozoa that are related to boar fertility. Traditional post-thaw analyses of motility, viability, and acrosome integrity were performed on each ejaculate. In vitro fertilization, cleavage, and blastocyst development were also determined. Finally, spermatozoa-oviduct binding and competitive zona-binding assays were applied to assess sperm adhesion to these two matrices. Fertility of the same ejaculates subjected to laboratory assays was determined for each boar by multi-sire AI and defined as (i) the mean percentage of the litter sired and (ii) the mean number of piglets sired in each litter. Means of each laboratory evaluation were calculated for each boar and those values were applied to multiple linear regression analyses to determine which sperm traits could collectively estimate fertility in the simplest model. The regression model to predict the percent of litter sired by each boar was highly effective (p < 0.001, r(2) = 0.87) and included five traits; acrosome-compromised spermatozoa, percent live spermatozoa (0 and 60 min post-thaw), percent total motility, and the number of zona-bound spermatozoa. A second model to predict the number of piglets sired by boar was also effective (p < 0.05, r(2) = 0.57). These models indicate that the fertility of cryopreserved boar spermatozoa can be predicted effectively by including traditional and novel laboratory assays that consider functions of spermatozoa.
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Affiliation(s)
- B W Daigneault
- Department of Animal Sciences, University of Illinois, Urbana-Champaign, IL, USA
| | - K A McNamara
- Department of Animal Sciences, University of Illinois, Urbana-Champaign, IL, USA
| | - P H Purdy
- USDA-ARS-NCGRP-NAGP, Fort Collins, CO, USA
| | - R L Krisher
- Department of Animal Sciences, University of Illinois, Urbana-Champaign, IL, USA.,National Foundation for Fertility Research, Lone Tree, CO, USA
| | - R V Knox
- Department of Animal Sciences, University of Illinois, Urbana-Champaign, IL, USA
| | - S L Rodriguez-Zas
- Department of Animal Sciences, University of Illinois, Urbana-Champaign, IL, USA
| | - D J Miller
- Department of Animal Sciences, University of Illinois, Urbana-Champaign, IL, USA
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28
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Kwon WS, Rahman MS, Lee JS, You YA, Pang MG. Improving litter size by boar spermatozoa: application of combined H33258/CTC staining in field trial with artificial insemination. Andrology 2015; 3:552-7. [PMID: 25767078 DOI: 10.1111/andr.12020] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 01/14/2015] [Accepted: 01/23/2015] [Indexed: 02/01/2023]
Abstract
Conventional semen analysis offers basic information on infertility; however, its clinical value in predicting fertility status is unclear. To establish an accurate diagnosis of male fertility, semen analysis under capacitation condition is necessary because only capacitated spermatozoa are capable of fertilizing oocytes. The objective of this study was to verify male fertility based on conventional semen analysis before and after capacitation, including the assessment of motility (%), motion kinematics, and capacitation status of spermatozoa. A computer-assisted sperm analysis system and chlortetracycline staining were applied to evaluate the motility parameters and capacitation status, respectively. To enable efficacy of the two methods for predicting fertility, correlation analysis was performed with the historic litter size. Our results showed that sperm motility (%), motion kinematics, and their variations before and after capacitation represented a statistical non-significant correlation with litter size. Litter size showed significant correlation with acrosome reaction (AR) after capacitation (r = 0.375), as well as differences (Δ) in AR (r = 0.333) and capacitated (B) pattern (r = -0.447) before and after capacitation. The overall accuracy of the assay for predicting litter sizes using the AR and differences (Δ) in the AR and B pattern was 70%. On the basis of these results, we propose that capacitation status of spermatozoa is a more reliable indicator for evaluating male fertility status compared to motility parameters. Therefore, we suggest that analysis of capacitation status in company with conventional semen analysis may accept to evaluate more accurate diagnosis or prognosis of male fertility.
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Affiliation(s)
- W-S Kwon
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-Do, Korea
| | - M S Rahman
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-Do, Korea
| | - J-S Lee
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-Do, Korea
| | - Y-A You
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-Do, Korea
| | - M-G Pang
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-Do, Korea
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29
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Luna C, Colás C, Casao A, Serrano E, Domingo J, Pérez-Pé R, Cebrián-Pérez J, Muiño-Blanco T. Ram seminal plasma proteins contribute to sperm capacitation and modulate sperm–zona pellucida interaction. Theriogenology 2015; 83:670-8. [DOI: 10.1016/j.theriogenology.2014.10.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/30/2014] [Accepted: 10/31/2014] [Indexed: 01/07/2023]
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30
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Progressive motility – a potential predictive parameter for semen fertilization capacity in bovines. ZYGOTE 2014; 24:70-82. [DOI: 10.1017/s0967199414000720] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
SummaryWe examined the association between progressive motility of spermatozoa andin vitrofertilization (IVF) competence of bovine ejaculates. Fresh semen was evaluated using a computerized sperm quality analyzer for bulls using progressive motility as the primary parameter. Ejaculates with high progressive motility (HPM; >81%) were compared with those with low progressive motility (LPM; <62%). Semen concentration and sperm velocity were lower (P< 0.05) in HPM versus LPM ejaculates. Volume and motile sperm concentration did not differ between groups (P> 0.05). Examination of sperm morphology revealed a higher proportion of spermatozoa with abnormal morphology (P< 0.01) in LPM versus HPM ejaculates, the predominant abnormal feature being a bent tail (P< 0.05). Sperm viability, acrosome integrity and DNA fragmentation did not differ between HPM and LPM samples. Mitochondrial membrane potential was higher (P< 0.01) in HPM versus LPM semen. Zinc concentrations in the seminal plasma correlated with progressive motility (R2= 0.463,P= 0.03). In addition, representative ejaculates from HPM and LPM groups were cryopreserved in straws and used for IVF. The proportions of embryos cleaved to 2- and 4-cell stages (88.1 ± 1.1 versus 80.5 ± 1.7,P= 0.001) and developed to blastocysts (33.5 ± 1.6 versus 23.5 ± 2.2,P= 0.026) were higher for HPM than LPM semen. The total cell number of embryos and blastocyst apoptotic index did not differ between groups. Although sperm progressive motility is associated with IVF competence, further examination is required to determine whether progressive motility can serve as a predictor of semen fertilization capacityin vivo.
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Verma A, Rajput S, De S, Kumar R, Chakravarty AK, Datta TK. Genome-wide profiling of sperm DNA methylation in relation to buffalo (Bubalus bubalis) bull fertility. Theriogenology 2014; 82:750-9.e1. [DOI: 10.1016/j.theriogenology.2014.06.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 05/31/2014] [Accepted: 06/07/2014] [Indexed: 10/25/2022]
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32
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A pre-breeding screening program for transgenic boars based on fluorescence in situ hybridization assay. Transgenic Res 2014; 23:679-89. [DOI: 10.1007/s11248-014-9801-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Accepted: 04/17/2014] [Indexed: 10/25/2022]
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33
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de Souza-Fabjan JMG, Panneau B, Duffard N, Locatelli Y, de Figueiredo JR, Freitas VJDF, Mermillod P. In vitro production of small ruminant embryos: late improvements and further research. Theriogenology 2014; 81:1149-62. [PMID: 24650929 DOI: 10.1016/j.theriogenology.2014.02.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Revised: 01/28/2014] [Accepted: 02/01/2014] [Indexed: 10/25/2022]
Abstract
Beyond the potential use of in vitro production of embryos (IVP) in breeding schemes, embryos are also required for the establishment of new biotechnologies such as cloning and transgenesis. Additionally, the knowledge of oocyte and embryo physiology acquired through IVP techniques may stimulate the further development of other techniques such as marker assisted and genomic selection of preimplantation embryos, and also benefit assisted procreation in human beings. Efficient in vitro embryo production is currently a major objective for livestock industries, including small ruminants. The heterogeneity of oocytes collected from growing follicles by laparoscopic ovum pick up or in ovaries of slaughtered females, remains an enormous challenge for IVM success, and still limits the rate of embryo development. In addition, the lower quality of the IVP embryos, compared with their in vivo-derived counterparts, translates into poor cryosurvival, which restricts the wider use of this promising technology. Therefore, many studies have been reported in an attempt to determine the most suitable conditions for IVM, IVF, and in vitro development to maximize embryo production rate and quality. This review aims to present the current panorama of IVP production in small ruminants, describing important steps for its success, reporting the recent advances and also the main obstacles identified for its improvement and dissemination.
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Affiliation(s)
- Joanna Maria Gonçalves de Souza-Fabjan
- INRA, Physiologie de la Reproduction et des Comportements, Nouzilly, France; Faculty of Veterinary, Laboratory of Physiology and Control of Reproduction (LFCR), State University of Ceará, Fortaleza, Ceara, Brazil.
| | - Barbara Panneau
- INRA, Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | - Nicolas Duffard
- INRA, Physiologie de la Reproduction et des Comportements, Nouzilly, France; Museum National d'Histoire Naturelle, Réserve de la Haute Touche, Obterre, France
| | - Yann Locatelli
- INRA, Physiologie de la Reproduction et des Comportements, Nouzilly, France; Museum National d'Histoire Naturelle, Réserve de la Haute Touche, Obterre, France
| | - José Ricardo de Figueiredo
- Faculty of Veterinary, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, Ceara, Brazil
| | | | - Pascal Mermillod
- INRA, Physiologie de la Reproduction et des Comportements, Nouzilly, France
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Handling of boar spermatozoa during and after flow cytometric sex-sorting process to improve their in vitro fertilizing ability. Theriogenology 2013; 80:350-6. [DOI: 10.1016/j.theriogenology.2013.04.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 04/16/2013] [Accepted: 04/19/2013] [Indexed: 11/17/2022]
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35
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Heparin and penicillamine–hypotaurine–epinephrine (PHE) solution during bovine in vitro fertilization procedures impair the quality of spermatozoa but improve normal oocyte fecundation and early embryonic development. In Vitro Cell Dev Biol Anim 2013; 50:39-47. [DOI: 10.1007/s11626-013-9675-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 07/23/2013] [Indexed: 10/26/2022]
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36
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Balao da Silva CM, Spinaci M, Bucci D, Giaretta E, Peña FJ, Mari G, Galeati G. Effect of sex sorting on stallion spermatozoa: Heterologous oocyte binding, tyrosine phosphorylation and acrosome reaction assay. Anim Reprod Sci 2013; 141:68-74. [PMID: 23953198 DOI: 10.1016/j.anireprosci.2013.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/15/2013] [Accepted: 07/17/2013] [Indexed: 11/17/2022]
Abstract
The interest on sex sorting by flow cytometry on the equine industry has been increasing over the years. In this work, three different tests were performed in order to evaluate the membrane status of sorted stallion spermatozoa: assessment of binding ability to porcine oocytes, evaluation of acrosome integrity after stimulation with A23187, and detection of tyrosine phosphorylation. These evaluations were made after incubation for 0h, 1.5h and 3h in a capacitating medium. Sorted stallion spermatozoa attached similarly to the porcine oocytes, when compared with control samples. Sorted spermatozoa were more prone to undergo acrosome reaction (P<0.05), at the beginning and after 1.5h and 3h of incubation, and also had higher tyrosine phosphorylation of the tail (P<0.001), only at the beginning of the incubation period. Apparently sex sorted stallion spermatozoa are in a more advanced status of membrane destabilization, which could be associated with capacitation, although similar binding ability to porcine oocytes is maintained.
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Affiliation(s)
- C M Balao da Silva
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain.
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37
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Jiang XH, Yie SM, Zhen X, Den YL, Liang X, Hu X, Li LM, Li QJ, Cao S, Lu H. Effect of You Gui Wan on mouse sperm fertilising abilityin vivoandin vitro. Andrologia 2013; 46:283-9. [PMID: 23465132 DOI: 10.1111/and.12075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2013] [Indexed: 11/27/2022] Open
Affiliation(s)
- X.-H. Jiang
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - S.-M. Yie
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - X. Zhen
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - Y.-L. Den
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - X. Liang
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - X. Hu
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - L.-M. Li
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - Q.-J. Li
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - S. Cao
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - H. Lu
- Department of Gynecology and Obstetrics; The Second Medical College/Teaching Hospital; Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
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Assessment of in vitro sperm characteristics and their importance in the prediction of conception rate in a bovine timed-AI program. Anim Reprod Sci 2013; 137:145-55. [PMID: 23428291 DOI: 10.1016/j.anireprosci.2013.01.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Revised: 12/19/2012] [Accepted: 01/28/2013] [Indexed: 11/24/2022]
Abstract
The aims of this study were to assess in vivo fertility and in vitro sperm characteristics of different sires and to identify sperm variables important for the prediction of conception rate. Multiparous Nelore cows (n = 191) from a commercial farm underwent the same timed artificial insemination (timed-AI) protocol. Three batches of frozen semen from three Angus bulls were used (n = 9). A routine semen thawing protocol was performed in the laboratory to mimic field conditions. The following in vitro sperm analyses were performed: Computer Assisted Semen Analysis (CASA), Thermal Resistance Test (TRT), Hyposmotic Swelling Test (HOST), assessment of plasma and acrosomal membrane integrity, assessment of sperm plasma membrane stability and of lipid peroxidation by flow cytometry and assessment of sperm morphometry and chromatin structure by Toluidine Blue staining. For statistical analyses, Partial Least Squares (PLS) regression was used to explore the importance of various sperm variables in the prediction of conception rate. The following in vitro sperm variables were determined to be important predictors of conception rate: total motility (TM), progressive motility (PM), TM after 2 h of thermal incubation (TM_2 h), PM after 2 h of thermal incubation (PM_2 h), Beat Cross Frequency after 2 h of thermal incubation (BCF_2 h), percentage of rapidly moving cells after 2 h of thermal incubation (RAP_2 h), intact plasma membrane evaluated by HOST, intact plasma and acrosomal membranes evaluated by flow cytometry, intact plasma membrane suffering lipid peroxidation, major defects, total defects, morphometric width/length ratio, Fourier_0 and Fourier_2 and Chromatin Heterogeneity. We concluded that PLS regression is a suitable statistical method to identify in vitro sperm characteristics that have an important relationship with in vivo bull fertility.
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Grasa P, Pérez-Pé R, Báguena O, Forcada F, Abecia A, Cebrián-Pérez JA, Muiño-Blanco T. Ram Sperm Selection by a Dextran/Swim-Up Procedure Increases Fertilization Rates Following Intrauterine Insemination in Superovulated Ewes. ACTA ACUST UNITED AC 2013; 25:982-90. [PMID: 15477373 DOI: 10.1002/j.1939-4640.2004.tb03171.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The objective of this study was to compare the efficacy of 2 dextran/swim-up media to increase the sperm quality parameters and the maintenance of these parameters at 15 degrees C and 30 degrees C over 6 hours. Additionally, this study examined whether differences in sperm quality reflect different reproductive efficiencies following intrauterine insemination in superovulated ewes. The study involved 2 selected samples (SS) obtained by dextran/swim-up, performed either with (SS+) or without (SS-) capacitating compounds, and a control sample consisting of raw semen diluted in the same medium. The efficacies of the swim-up sperm selection procedures were similar in both media, and no significant differences were found among the evaluated parameters. Conversely, we found important differences between selected and control samples. Sperm motility, viability (as assessed by carboxifluorescein diacetate/propidium iodide [PI] staining), and mitochondrial activity (as assessed by rhodamine 123/PI) were significantly higher in the selected samples than in the control. Additionally, following incubation at 15 degrees C, the preservation of sperm quality was significantly better in the selected samples than in the control samples. After 6 hours of incubation at 15 degrees C, selected samples had a motility value of 46%, which was significantly (P < .001) higher than the value observed in control samples (27%). The percentage of viable cells observed after 6 hours of incubation at 15 degrees C was significantly (P < .0001) higher in selected samples than in the control samples. Furthermore, after 2 hours of incubation at 30 degrees C, swim-up samples had viability values that were significantly (P < .0001) higher than those of the control samples. SS+ and SS- samples did not differ significantly in spermatozoa yield, sperm quality, or survival. Differences between selected samples and controls were reflected in the fertilization rate obtained following intrauterine insemination in superovulated ewes that experienced a 52-hour interval between progestagen removal and artificial insemination. A restricted criterion for fertilization rate evaluation was established, and only the percentage of embryos recovered from the uterine horns 6 days after insemination was considered with respect to the total number of corpora lutea counted in the ovaries. The fertilization rate of SS- samples (50%) was significantly higher (P > .001) than those of the SS+ (2%) and control samples (5%).
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Affiliation(s)
- P Grasa
- Department of Biochemistry, Univeristy of Zaragoza, Miguel Servet, Zaragoza, Spain
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40
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Effects of Taurine or Trehalose supplementation on functional competence of cryopreserved Karan Fries semen. Anim Reprod Sci 2012; 135:1-7. [DOI: 10.1016/j.anireprosci.2012.08.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 08/08/2012] [Accepted: 08/21/2012] [Indexed: 11/17/2022]
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41
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Puglisi R, Pozzi A, Foglio L, Spanò M, Eleuteri P, Grollino MG, Bongioni G, Galli A. The usefulness of combining traditional sperm assessments with in vitro heterospermic insemination to identify bulls of low fertility as estimated in vivo. Anim Reprod Sci 2012; 132:17-28. [DOI: 10.1016/j.anireprosci.2012.04.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 04/10/2012] [Accepted: 04/16/2012] [Indexed: 11/30/2022]
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42
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Pillet E, Labbe C, Batellier F, Duchamp G, Beaumal V, Anton M, Desherces S, Schmitt E, Magistrini M. Liposomes as an alternative to egg yolk in stallion freezing extender. Theriogenology 2012; 77:268-79. [PMID: 21924469 DOI: 10.1016/j.theriogenology.2011.08.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 07/28/2011] [Accepted: 08/01/2011] [Indexed: 11/17/2022]
Abstract
Egg yolk is normally used as a protective agent to freeze semen of equine and other species. However, addition of egg yolk in extenders is not without disadvantages and the demand to find cryoprotective alternatives is strong. The objective of this study was to test the cryoprotective capacities of liposomes composed of egg yolk phospholipids. Two experiments were conducted: 1) the first to determine the optimal composition and concentration of liposomes to preserve post-thaw motility and membrane integrity of spermatozoa; 2) the second to assess in vivo the cryoprotective capacities of these liposomes. In Experiment 2, post-thaw motility and membrane integrity of spermatozoa were also analyzed. Experiment 1 demonstrated that liposomes composed of phospholipids E80 (commercial lecithins from egg yolk composed mainly of phosphatidylcholine and phosphatidylethanolamine) and of Hank's salts-glucose-lactose solution (E80-liposomes) were the most efficient in preserving post-thaw motility. The optimal concentration was 4 % (v/v). In Experiment 2, fertility rate after artificial insemination of semen frozen with E80-liposomes was 55 % (22/40) compared with 68 % (27/40) with the control extender containing egg yolk (EY) (p = 0.23). Post-thaw motility parameters were higher with EY than with E80-liposomes (p < 0.0001). For post-thaw membrane integrity no difference was observed between the two extenders (p = 0.08). Liposomes composed of egg yolk phospholipids appeared to be a promising alternative to replace egg yolk in semen freezing extenders in equine species.
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Affiliation(s)
- Elodie Pillet
- INRA, UMR85 Physiologie de la Reproduction et des Comportements, Nouzilly, France
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43
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Hossain MS, Johannisson A, Wallgren M, Nagy S, Siqueira AP, Rodriguez-Martinez H. Flow cytometry for the assessment of animal sperm integrity and functionality: state of the art. Asian J Androl 2011; 13:406-19. [PMID: 21478895 PMCID: PMC3739346 DOI: 10.1038/aja.2011.15] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 11/19/2010] [Accepted: 01/26/2011] [Indexed: 11/09/2022] Open
Abstract
Flow cytometry is now a recognized methodology within animal spermatology, and has moved from being a research tool to become routine in the assessment of animal semen destined to breeding. The availability of 'bench-top' flow cytometers and of newer and versatile markers for cell structure and function had allowed the instrumentation to measure more sperm parameters, from viability to reactiveness when exposed to exogenous stimuli, and to increase our capabilities to sort spermatozoa for potential fertilizing capacity, or chromosomal sex. The present review summarizes the state of the art regarding flow cytometry applied to animal andrology, albeit keeping an open comparative intent. It critically evaluates the present and future capabilities of flow cytometry for the diagnostics of potential fertility and for the development of current reproductive technologies such as sperm freezing, sperm selection and sperm sorting. The flow cytometry methods will probably further revolutionize our understanding of the sperm physiology and their functionality, and will undoubtedly extend its application in isolating many uncharacterized features of spermatozoa. However, continuous follow-up of the methods is a necessity owing to technical developments and the complexity of mapping spermatozoa.
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Affiliation(s)
- Md Sharoare Hossain
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences (SLU), SE-750 07 Uppsala, Sweden
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44
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Sudano MJ, Crespilho AM, Fernandes CB, Junior AM, Papa FO, Rodrigues J, Machado R, Landim-Alvarenga FDC. Use of bayesian inference to correlate in vitro embryo production and in vivo fertility in zebu bulls. Vet Med Int 2011; 2011:436381. [PMID: 21547211 PMCID: PMC3087428 DOI: 10.4061/2011/436381] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Accepted: 02/27/2011] [Indexed: 11/20/2022] Open
Abstract
The objective of this experiment was to test in vitro embryo production (IVP) as a tool to estimate fertility performance in zebu bulls using Bayesian inference statistics. Oocytes were matured and fertilized in vitro using sperm cells from three different Zebu bulls (V, T, and G). The three bulls presented similar results with regard to pronuclear formation and blastocyst formation rates. However, the cleavage rates were different between bulls. The estimated conception rates based on combined data of cleavage and blastocyst formation were very similar to the true conception rates observed for the same bulls after a fixed-time artificial insemination program. Moreover, even when we used cleavage rate data only or blastocyst formation data only, the estimated conception rates were still close to the true conception rates. We conclude that Bayesian inference is an effective statistical procedure to estimate in vivo bull fertility using data from IVP.
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Affiliation(s)
- Mateus José Sudano
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, São Paulo State University, 18618-000 Botucatu, SP, Brazil
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45
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Effects of radiographic contrast media on domestic cat epididymidal sperm. Theriogenology 2011; 75:329-36. [PMID: 20965555 DOI: 10.1016/j.theriogenology.2010.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2010] [Revised: 08/25/2010] [Accepted: 09/02/2010] [Indexed: 11/21/2022]
Abstract
Laparoscopic artificial insemination has an important role in felid conservation but it is costly and includes surgical risk. Therefore, radiographic contrast medium combined with non-surgical transcervical AI to verify intrauterine gamete placement could be a viable alternative. Gamete-rescued fresh and frozen-thawed sperm were extended with one of two commercial contrast media (nonionic and ionic), with osmolarity adjusted to 320-330 mOsm, or feline optimized culture medium (control). Percent motility, forward progression status, and acrosomal integrity were recorded every 30 min for 4 h. Sperm penetration abilities were assessed by coincubating treated sperm with conspecific in vitro matured oocytes for 18 to 20 h, and presumptive zygotes and embryos were fixed and stained to determine sperm penetration and fertilization rate. There was reduced motility and acrosomal integrity in frozen-thawed versus fresh sperm (P < 0.05). Neither radiographic contrast medium induced adverse effects on fresh sperm motility relative to control medium (P > 0.05), but motility of frozen-thawed sperm decreased when treated with nonionic radiographic contrast medium compared to control medium (P < 0.05). There were no differences in acrosomal integrity between radiographic contrast and control media in fresh (P > 0.05) or frozen sperm (P > 0.05). Neither radiographic contrast media decreased the numbers of morphologically normal sperm (P > 0.05) or reduced the ability of domestic cat sperm to penetrate (P > 0.05) or fertilize (P > 0.05) conspecific oocytes. Ionic radiographic contrast medium can be added to fresh or frozen-thawed domestic cat sperm with no adverse effect on motility, morphology, acrosomal integrity or oocyte penetration rates, and thus may be used to facilitate further development of transcervical AI procedures.
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46
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In vivo fertility of bull semen following cryopreservation with an LDL (low density lipoprotein) extender: Preliminary results of artificial inseminations. Anim Reprod Sci 2010; 122:282-7. [DOI: 10.1016/j.anireprosci.2010.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 09/11/2010] [Accepted: 09/17/2010] [Indexed: 11/21/2022]
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47
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Oh SA, Park YJ, You YA, Mohamed EA, Pang MG. Capacitation status of stored boar spermatozoa is related to litter size of sows. Anim Reprod Sci 2010; 121:131-8. [PMID: 20573460 DOI: 10.1016/j.anireprosci.2010.05.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Revised: 03/31/2010] [Accepted: 05/31/2010] [Indexed: 11/29/2022]
Abstract
Semen parameters can be considered useful predictors of sperm fertility. The objective of this study was to address the question of whether differences in in vivo fertility after the use of different ejaculates could be predicted using sperm kinematics, capacitation status, and sperm penetration ability under commercial pig production conditions. The percentage of capacitated sperm, as assessed by chlortetracycline (CTC) staining, was positively correlated with litter size (p<0.01). Our data suggest that litter size increases in proportion to the number of capacitated spermatozoa. When all semen parameters (kinematics, sperm capacitation status, and sperm penetration ability) and litter size were included in a multiple linear regression analysis, significant associations were found between the percentage of capacitated sperm (B-type), the sperm fertility index as assessed by a sperm penetration assay (SPA), and litter size. This relationship between capacitated sperm and litter size, however, was more predictive for smaller litter groups than larger ones. We found that the percentage of B-type sperm was significantly correlated with historic average litter size. However, there was no significant correlation between the percentage of B-type sperm and historic farrowing rates. To determine the normal range for B-type sperm, the lower limits were established as 30% for small litters (<8 piglets) and 35% for large litters. The overall accuracy of the assay was 92% and 83% for small and large litters, respectively. These results indicate that capacitation status as measured by CTC staining is a useful predictor of sperm fertility, equivalent to SPA. Moreover, original capacitation status exhibited better predictive ability for small litters than for large ones. Therefore, subfertile boars can be identified primarily by capacitation status.
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Affiliation(s)
- S A Oh
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Ansung, Gyeonggi-Do, Republic of Korea
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48
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O’Hara L, Hanrahan J, Richardson L, Donovan A, Fair S, Evans A, Lonergan P. Effect of storage duration, storage temperature, and diluent on the viability and fertility of fresh ram sperm. Theriogenology 2010; 73:541-9. [DOI: 10.1016/j.theriogenology.2009.10.009] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Revised: 10/03/2009] [Accepted: 10/06/2009] [Indexed: 11/28/2022]
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49
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Gonçalves FS, Barretto LSS, Arruda RP, Perri SHV, Mingoti GZ. Effect of Antioxidants During BovineIn VitroFertilization Procedures on Spermatozoa and Embryo Development. Reprod Domest Anim 2010; 45:129-35. [DOI: 10.1111/j.1439-0531.2008.01272.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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50
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Berlinguer F, Madeddu M, Pasciu V, Succu S, Spezzigu A, Satta V, Mereu P, Leoni GG, Naitana S. Semen molecular and cellular features: these parameters can reliably predict subsequent ART outcome in a goat model. Reprod Biol Endocrinol 2009; 7:125. [PMID: 19900288 PMCID: PMC2777909 DOI: 10.1186/1477-7827-7-125] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Accepted: 11/09/2009] [Indexed: 11/16/2022] Open
Abstract
Currently, the assessment of sperm function in a raw or processed semen sample is not able to reliably predict sperm ability to withstand freezing and thawing procedures and in vivo fertility and/or assisted reproductive biotechnologies (ART) outcome. The aim of the present study was to investigate which parameters among a battery of analyses could predict subsequent spermatozoa in vitro fertilization ability and hence blastocyst output in a goat model. Ejaculates were obtained by artificial vagina from 3 adult goats (Capra hircus) aged 2 years (A, B and C). In order to assess the predictive value of viability, computer assisted sperm analyzer (CASA) motility parameters and ATP intracellular concentration before and after thawing and of DNA integrity after thawing on subsequent embryo output after an in vitro fertility test, a logistic regression analysis was used. Individual differences in semen parameters were evident for semen viability after thawing and DNA integrity. Results of IVF test showed that spermatozoa collected from A and B lead to higher cleavage rates (0 < 0.01) and blastocysts output (p < 0.05) compared with C. Logistic regression analysis model explained a deviance of 72% (p < 0.0001), directly related with the mean percentage of rapid spermatozoa in fresh semen (p < 0.01), semen viability after thawing (p < 0.01), and with two of the three comet parameters considered, i.e tail DNA percentage and comet length (p < 0.0001). DNA integrity alone had a high predictive value on IVF outcome with frozen/thawed semen (deviance explained: 57%). The model proposed here represents one of the many possible ways to explain differences found in embryo output following IVF with different semen donors and may represent a useful tool to select the most suitable donors for semen cryopreservation.
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Affiliation(s)
- Fiammetta Berlinguer
- Department of Animal Biology, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Manuela Madeddu
- Department of Animal Biology, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Valeria Pasciu
- Presidenza, Biblioteca Veterinaria, Faculty of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Sara Succu
- Department of Animal Biology, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Antonio Spezzigu
- Department of Animal Biology, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Valentina Satta
- Department of Physiological, Biochemical and Cellular Science, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Paolo Mereu
- Department of Physiological, Biochemical and Cellular Science, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Giovanni G Leoni
- Department of Physiological, Biochemical and Cellular Science, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Salvatore Naitana
- Department of Animal Biology, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
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