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Santos RP, Moreira SSJ, Bezerra LGP, Cavalcante YCS, Pereira AG, Matos TM, Oliveira MF, Silva AR. Comparison between commercial media and TRIS-egg yolk extender in the refrigerated storage of collared peccary semen at 17°C. Anim Reprod Sci 2024; 265:107478. [PMID: 38663148 DOI: 10.1016/j.anireprosci.2024.107478] [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] [Received: 01/06/2024] [Revised: 04/15/2024] [Accepted: 04/20/2024] [Indexed: 05/24/2024]
Abstract
To assist in the conservation of collared peccary, it is important to strengthen semen processing protocols. The aim of this study was to compare the effects of different commercial extenders (BTS; NUTRIXcell+ and PRIMXcell Ultra) and TRIS + egg yolk on the functional and morphological aspects of collared peccary semen stored at 17 °C for 48 hours. Ten ejaculates obtained by electroejaculation were divided into 4 aliquots and diluted in the respective extenders, then stored in a biological incubator at 17 °C for 12, 24, 36, and 48 hours. The samples were evaluated for kinetic parameters, membrane functionality, membrane integrity, mitochondrial activity, morphology, and sperm-binding capacity. At the end of storage (48 h), promising results were found for motility parameters, with TRIS + egg yolk (71.0 ± 4.6%) being more efficient than NUTRIXcell+ (38.9 ± 10.9%) (P < 0.05) and similar to BTS (42.9 ± 11.9%) and PRIMXcell Ultra (46.8 ± 10.8%). The results for membrane integrity and mitochondrial activity were around ∼30-50%, with TRIS being the only extender to preserve both parameters (58.9 ± 5.3 and 59.2 ± 5.6%) for up to 48 hours, respectively (P < 0.05). Finally, the extenders could guarantee 60% membrane functionality and ∼ 60-70% normal sperm morphology, as well as similar binding capacity among the groups. In conclusion, TRIS + egg yolk is effective in preserving the sperm parameters of collared peccary semen at 17 °C for 48 hours, while PRIMXcell Ultra and BTS are viable alternatives for this purpose.
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Affiliation(s)
- Romário P Santos
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido (Federal Rural University of the Semiarid Region) - UFERSA, Mossoró, Rio Grande do Norte, Brazil
| | - Samara S J Moreira
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido (Federal Rural University of the Semiarid Region) - UFERSA, Mossoró, Rio Grande do Norte, Brazil
| | - Luana G P Bezerra
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido (Federal Rural University of the Semiarid Region) - UFERSA, Mossoró, Rio Grande do Norte, Brazil
| | - Yasmim C S Cavalcante
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido (Federal Rural University of the Semiarid Region) - UFERSA, Mossoró, Rio Grande do Norte, Brazil
| | - Ana G Pereira
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido (Federal Rural University of the Semiarid Region) - UFERSA, Mossoró, Rio Grande do Norte, Brazil
| | - Tayná M Matos
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido (Federal Rural University of the Semiarid Region) - UFERSA, Mossoró, Rio Grande do Norte, Brazil
| | - Moacir F Oliveira
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido (Federal Rural University of the Semiarid Region) - UFERSA, Mossoró, Rio Grande do Norte, Brazil
| | - Alexandre R Silva
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido (Federal Rural University of the Semiarid Region) - UFERSA, Mossoró, Rio Grande do Norte, Brazil.
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Parveen S, Rizvi A, Akhtar K, Khan AA, Naseem I. Nickel-induced oxidative stress causes cell death in testicles: implications for male infertility. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:1659-1670. [PMID: 37704774 DOI: 10.1007/s00210-023-02713-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 09/04/2023] [Indexed: 09/15/2023]
Abstract
Aligarh region is well known for its lock industry. This lock industry utilises nickel for electroplating. There have been informal reports of infertility in men and women living near the lock industry. We analysed field water samples to investigate this link, and the results showed considerable nickel contamination. To further validate our results, we exposed male rats to relevant nickel levels in drinking water. This experimental exposure resulted in abnormal sperm morphology, decline in sperm count, significant change in activities of antioxidant enzymes, pronounced oxidative stress in the rat spermatocytes and decrease in serum testosterone level, as well as damage in the hypothalamus and pituitary (in all cases, the changes were most significant at the highest concentration used i.e 2.5 mg/l). The breeding experiments showed decline in live birth rate, while pups did not survive post birth in cages where males were given 2 and 2.5 mg/l concentrations of nickel in drinking water prior to mating. Our data strongly indicate a link between industrial nickel exposure and male infertility.
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Affiliation(s)
- Saima Parveen
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Asim Rizvi
- Department of Kulliyat, Faculty of Unani Medicine, Aligarh Muslim University, Aligarh, India
| | - Kafil Akhtar
- Department of Pathology, JNMC, Aligarh Muslim University, Aligarh, India
| | - Aijaz Ahmed Khan
- Department of Anatomy, JNMC, Aligarh Muslim University, Aligarh, India
| | - Imrana Naseem
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India.
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Nooroozian A, Goodarzi N, Tafti RD. Morphology and morphometry of sperm in Kurdish stallions, a local breed from western Iran. Reprod Domest Anim 2024; 59:e14534. [PMID: 38268217 DOI: 10.1111/rda.14534] [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] [Received: 10/17/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/26/2024]
Abstract
The present work was designed for a thorough investigation into the sperm morphology and morphometry of Kurdish stallions. The semen samples were collected from 10 Kurdish stallions. Three preparations from each ejaculate were stained with eosin-nigrosin (EN), Diff-Quik (DQ) and Rose Bengal (RB). The area, perimeter, length and width of the sperm head as well as tail length and total sperm length were measured. The parameters ellipticity, elongation, roughness and regularity were calculated. The morphology of sperm was also investigated under scanning and transmission electron microscopes. DQ and RB provided more clarified images for examining sperm structures compared to the EN method. The head length, head width, area and perimeter in EN were significantly higher than those in DQ and RB (p ≤ .05). Furthermore, the difference in head width, head area and head perimeter between DQ and RB was not significant (p ≥ .05). The tail length and total sperm length in all methods were close together (p ≥ .05). The highest percentage of normal sperm was seen in DQ and RB methods (82.55 ± 2.88 and 88.31 ± 5.19) respectively. The highest values for ellipticity, elongation and regularity were found in RB, whereas the highest value for roughness was measured in EN. Tail defects including coiled tails, and folded midpieces were the most frequent. Scanning electron microscope revealed two types of head shapes: heads with round anterior border, and heads with flat anterior border. The results indicated that despite the routine use of EN for morphological assessment of stallion sperm, RB and DQ can be considered for more clarified details of sperm structure including acrosome and midpiece. Furthermore, the Kurdish stallion sperm has morphometric traits in the normal range established for stallions; yet, some traits were larger than those reported for other breeds. It seems that the sperm of the Kurdish stallion has a longer head and tail in comparison with other horse breeds.
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Affiliation(s)
| | - Nader Goodarzi
- Department of Basic Sciences and Pathobiology, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran
| | - Rohollah Dehghani Tafti
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Lorestan University, Khorramabad, Iran
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Santos MVO, Silva AM, Aquino LVC, Oliveira LRM, Moreira SSJ, Oliveira MF, Silva AR, Pereira AF. Different Methods for Seminal Plasma Removal and Sperm Selection on the Quality and Fertility of Collared Peccary Sperm. Animals (Basel) 2023; 13:1955. [PMID: 37370465 DOI: 10.3390/ani13121955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/31/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Methods for seminal plasma (SP) removal and the selection of collared peccary sperm for fertilization were compared. The experiments evaluated the following: the (I) impact of centrifugation for SP removal before swim-up for sperm selection and (II) a comparison of different Percoll® gradient densities (PG 45-90% and PG 35-70%). Non-selected sperm served as the control. Sperm quality was assessed based on motility patterns, morphology, membrane functional integrity, viability, reactive oxygen species (ROS), glutathione (GSH), and DNA integrity. Subsequently, the most successful group in the previous experiment and washing by centrifugation (WC) were compared for motility patterns and fertilization using pig oocytes. Swim-up decreased motility and enhanced ROS compared to the control. Centrifugation before swim-up harmed integrity and viability compared to the control. PG 45-90% (96.8 vs. 69.7 vs. 40.7 µm/s) allowed for a better velocity average pathway (VAP), a better velocity straight line, and better linearity (LIN) than those of the control and PG 35-70% (88.4 vs. 56.0 vs. 27.3 µm/s). Thus, PG 45-90% was used for fertilization. PG 45-90% obtained a higher VAP, a higher amplitude of the lateral head, straightness, and higher LIN than those of the control and WC. Cleavage (25.2-26.3%) and morula (8.1-10.5%) rates did not differ between the groups. Therefore, PG 45-90% and WC were efficient in isolating collared peccary sperm capable of fertilizing pig oocytes.
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Affiliation(s)
- Maria V O Santos
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro 59625-900, RN, Brazil
| | - Andréia M Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro 59625-900, RN, Brazil
| | - Leonardo V C Aquino
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro 59625-900, RN, Brazil
| | - Lhara R M Oliveira
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro 59625-900, RN, Brazil
| | - Samara S J Moreira
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro 59625-900, RN, Brazil
| | - Moacir F Oliveira
- Laboratory of Applied Animal Morphophysiology, Federal Rural University of Semi-Arid, Mossoro 59625-900, RN, Brazil
| | - Alexandre R Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro 59625-900, RN, Brazil
| | - Alexsandra F Pereira
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro 59625-900, RN, Brazil
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Effect of superoxide dismutase, catalase, and glutathione reductase supplementation on cryopreservation of Black Bengal buck semen. Trop Anim Health Prod 2021; 53:552. [PMID: 34812951 DOI: 10.1007/s11250-021-02995-7] [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: 04/26/2021] [Accepted: 11/11/2021] [Indexed: 10/19/2022]
Abstract
The present experiment was carried out with the objectives to study the effects of antioxidants superoxide dismutase (SOD), catalase (CAT), and glutathione reductase (GSH) on cryopreservation of Black Bengal buck semen. Semen ejaculates (n = 60) were collected from eight bucks by artificial vagina method and diluted with Tris citrate egg yolk glycerol extender. To study the effect of antioxidants, SOD was added @ 0, 100, and 150 IU/ml; CAT was added @ 0, 200, and 400 IU/ml while GSH was added @ 0, 1, and 2 mM of diluted semen. Semen samples were equilibrated and vapor frozen in liquid nitrogen. Semen samples were evaluated after 48 h of storage for post thaw in vitro characters such as motility, viability, functional membrane integrity, and acrosome integrity. Semen extenders supplemented with SOD @ 100 and 150 IU/ml and GSH @ 1 and 2 mM had a higher (p < 0.01) number of motile cells, viable cells, HOST reacted cells, and acrosome intact cells than their respective controls. Further, semen extenders added with catalase @ 200 and 400 IU/ml had more (p < 0.05) number of viable, HOST reacted cells and significantly higher (p < 0.01) acrosome intact sperm cells than its control group. It can be concluded that supplementation of antioxidants SOD, GSH, and CAT had a beneficial effect on cryopreservation of Black Bengal buck semen.
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Ikhlas S, Ahmad M. Acute and sub-acute bisphenol-B exposures adversely affect sperm count and quality in adolescent male mice. CHEMOSPHERE 2020; 242:125286. [PMID: 31896186 DOI: 10.1016/j.chemosphere.2019.125286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/25/2019] [Accepted: 10/31/2019] [Indexed: 05/21/2023]
Abstract
Bisphenol-B (BPB), an analogue of bisphenol-A is used in the plastic industry. It has been found to leach from plastic containers leading to its contamination in canned food products. Moreover, it has also been detected in human samples such as sera and urine. BPB is recognized as a potential endocrine disrupting chemical owing to its estrogenic and anti-androgenic nature. Therefore, it was pertinent to study the effect of BPB exposure during the adolescence age (5-6 weeks old) in male mice. Weekly intraperitoneal injections of 5, 10 and 15% LD50 of BPB were given for 2 weeks to acute exposure groups and for 4 weeks to sub-acute exposure groups. BPB exposure induces change in enzymatic and non-enzymatic oxidative stress markers in sperm samples. DNA damage was also observed in sperm cells on acute and sub-acute exposures. Furthermore, BPB exposure led to a marked decline in sperm count and compromised sperm morphology. Computer assisted sperm analysis (CASA) revealed a significant decrease in sperm quality and progressive motility. Thus, both the acute and sub-acute exposures of adolescent male mice to BPB adversely affect the sperms' quality, functions and morphology.
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Affiliation(s)
- Shoeb Ikhlas
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Masood Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
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Mukti AT, Sari YGP, Agusdinata GSR, Satyantini WH, Mubarak AS, Luqman EM, Widjiati. The effects of laserpuncture on gonadal maturity and sperm quality of male striped catfish (Pangasianodon hypophthalmus). Theriogenology 2020; 147:102-107. [PMID: 32126382 DOI: 10.1016/j.theriogenology.2020.02.030] [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: 05/23/2019] [Revised: 02/14/2020] [Accepted: 02/19/2020] [Indexed: 11/17/2022]
Abstract
Laserpuncture is one of the applicative technologies used mainly in animal and fish reproductions. Laserpuncture technology has been used to improve gonadal maturity and sperm quality in fish rapidly. This study aimed to determine the effects of different laserpuncture doses on gonadal maturity and sperm quality of male striped catfish. Males striped catfish (800-900 g/fish body weight) and I gonadal maturity stage were used. Semi-conductor soft laser was used with doses of 0.2-, 0.4-, and 0.5-J, while the negative control (without the laserpuncture and the ovaprim™) and only the ovaprim™ were used as a comparison treatment, respectively. The soft-laser was treated on reproductive acupoint every week for four weeks, while the ovaprim™ was administered by intramuscular injection at dose of 0.2 mL/kg fish in final rearing period. Fish was reared in hapa at the controlled pond. Fish was fed with a commercial feed containing 32% crude protein. Gonadal maturity, gonadosomatic index (GSI), hepatosomatic index (HSI), and sperm quality of male striped catfish were measured in the final rearing period. The results showed that the laserpuncture on the reproductive acupoint had a highly significant effect (P < 0.01) on the gonadal maturity, GSI, HSI, and sperm quality of male striped catfish. In terms of the gonadal maturity, laserpuncture doses treatment of 0.4 and 0.5-J gave the most mature IV stage. While the highest levels of GSI and HSI were found in 0.5-J of laserpuncture dose, which was 2.17% and 1.54%, respectively. In addition, the best sperm qualities were observed in 0.5-J of laserpuncture dose, which were 81.75% motility, 82.75% viability, and 7.0 × 109 cell/mL concentration. These results suggest that the laserpuncture can accelerate a gonadal maturity and improve sperm quality in male striped catfish.
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Affiliation(s)
- A T Mukti
- Department of Fish Health Management and Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga, Kampus C Unair Jl. Mulyorejo, Surabaya, 60115, Indonesia.
| | - Y G P Sari
- Study Program of Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga, Kampus C Unair Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - G S R Agusdinata
- Study Program of Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga, Kampus C Unair Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - W H Satyantini
- Department of Fish Health Management and Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga, Kampus C Unair Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - A S Mubarak
- Department of Marine, Faculty of Fisheries and Marine, Universitas Airlangga, Kampus C Unair Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - E M Luqman
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Universitas Airlangga, Kampus C Unair Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Widjiati
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Universitas Airlangga, Kampus C Unair Jl. Mulyorejo, Surabaya, 60115, Indonesia
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Maia KM, Souza ALP, Silva AM, Souza-Jr JBF, Costa LLM, Brandão FZ, Oliveira MF, Comizzoli P, Silva AR. Environmental effects on collared peccaries (Pecari tajacu) serum testosterone, testicular morphology, and semen quality in the Caatinga biome. Theriogenology 2018; 126:286-294. [PMID: 30597387 DOI: 10.1016/j.theriogenology.2018.12.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 12/14/2018] [Accepted: 12/20/2018] [Indexed: 12/30/2022]
Abstract
The objective of the study was to understand the influence of climatic variations in a semiarid environment on serum testosterone, testicular morphology and semen quality in collared peccaries (Pecari tajacu). Reproductive metrics (semen quality, testicular morphometry and testosterone serum profiles) of 10 mature males were measured monthly for 18 months. Meteorological data (rainfall, air temperature, relative humidity, wind speed and radiant heat load) also were recorded during the same period. Rainfall regimes were classified in different classes (Class 1: months with no rain; Class 2: months with up to 50 mm of rain; and Class 3: months with >50 mm of rain). Among rainfall classes, average air temperature (°C) and relative humidity (%) were different. Climatic changes between rainfall classes did not lead to overall variations of testicular size, testosterone production, and semen metrics. However, relative humidity recorded before semen collection (one day, one week, or over 51-55 days) was positively correlated (P < 0.05) with semen motility metrics (total motility, beat cross frequency and straightness) and sperm subpopulations (medium and static sperm), as well as with volume. Negative correlations (P < 0.05) were revealed between air temperature and the same semen motility patterns and volume. Additionally, radiant head load measured on the day of semen collection negatively influenced (P < 0.05) sperm straightness. This study demonstrates for the first time that no seasonal changes could be detected overt the 18-month period on the serum testosterone, testicular morphology and semen quality of collared peccaries raised in the Caatinga biome; however, it is expected that long term environmental changes will influence the reproductive physiology of species leaving in that habitat.
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Affiliation(s)
- K M Maia
- Laboratory of Animal Germplasm Conservation (LCGA), Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, CEP: 59625-900, Mossoró, Brazil
| | - A L P Souza
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Ceará, Sobral, Brazil
| | - A M Silva
- Laboratory of Animal Germplasm Conservation (LCGA), Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, CEP: 59625-900, Mossoró, Brazil
| | - J B F Souza-Jr
- Laboratório de Biometeorologia, Biofísica Ambiental e Bem-Estar Animal (LABBEA), Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, RN, Brazil
| | - L L M Costa
- Laboratório de Biometeorologia, Biofísica Ambiental e Bem-Estar Animal (LABBEA), Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, RN, Brazil
| | - F Z Brandão
- Departamento de Patologia e Clínica Veterinária, Faculdade de Veterinária, Universidade Federal Fluminense (UFF), Rua Vital Brasil Filho, 64, 24320-340, Niteroi, RJ, Brazil
| | - M F Oliveira
- Laboratory of Animal Germplasm Conservation (LCGA), Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, CEP: 59625-900, Mossoró, Brazil
| | - P Comizzoli
- Smithsonian Conservation Biology Institute, National Zoological Park, P.O. Box 37012, MRC 5502, Washington, DC, 20008, USA
| | - A R Silva
- Laboratory of Animal Germplasm Conservation (LCGA), Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, CEP: 59625-900, Mossoró, Brazil.
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Dependence of Sperm Morphology and Ejaculate Characteristics on Sperm Concentration in the Ejaculates of Hypor Boars. J Vet Res 2018; 62:353-357. [PMID: 30584616 PMCID: PMC6296009 DOI: 10.2478/jvetres-2018-0050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 08/24/2018] [Indexed: 11/20/2022] Open
Abstract
Introduction Determination of sperm concentration and morphology in ejaculate is essential in evaluating fertility. Sperm shape and dimensions may depend on their concentration in ejaculate. The aim of the study was to evaluate the dependence of Hypor boar morphological and morphometric sperm characteristics on concentration in ejaculate. Material and Methods The study was conducted on 120 ejaculates from 12 Hypor boars. Depending on sperm concentration, they were put into three groups: low, medium, and high. Ejaculate sperm concentration was determined with the photometric method. Slides were prepared from semen samples which were evaluated for the morphology of spermatozoa. The preparations for morphological analyses were by the eosin-gentian staining method. Results As the sperm concentration in the ejaculate increased, the length, perimeter, and area of the sperm heads also did. In the ejaculates with higher sperm concentration the sperm heads were rounder. The ratios of head dimensions to tail length or total length were the highest in the sperm from ejaculates with the highest concentrations. The highest percentage of morphologically abnormal sperm was noted in ejaculates with low concentrations. Conclusion The dimensions and shape of sperm depend on the sperm concentration in the ejaculate. In ejaculates with the highest concentrations, the sperm have larger dimensions. Sperm concentration affects the frequency of morphological anomalies in the spermatozoa.
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Bezerra LGP, Souza ALP, Silva HVR, Vasconcelos FR, Moura ADAA, Pereira AF, Oliveira MFD, Silva AR. Ultrastructural description of fresh and frozen/thawed sperm derived from collared peccaries (
Pecari tajacu
Linnaeus, 1,758). Microsc Res Tech 2018; 81:1301-1309. [DOI: 10.1002/jemt.23138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/04/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Luana Grasiele Pereira Bezerra
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semiárido – UFERSA Rio Grande do Norte Brazil
| | - Ana Liza Paz Souza
- Post‐Graduation Program in Biotechnology, Universidade Federal do Ceará – UFC Ceará Brazil
| | | | | | | | - Alexsandra Fernandes Pereira
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semiárido – UFERSA Rio Grande do Norte Brazil
| | - Moacir Franco de Oliveira
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semiárido – UFERSA Rio Grande do Norte Brazil
| | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semiárido – UFERSA Rio Grande do Norte Brazil
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Cryopreservation of collared peccary (Pecari tajacu L., 1758) epididymal sperm using extenders based on Tris and powdered coconut water (ACP®-116c). ZYGOTE 2018; 26:301-307. [DOI: 10.1017/s0967199418000230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
SummaryThe aim of this study was to establish a functional freezing–thawing protocol for epididymal sperm of collared peccaries (Pecari tajacu L., 1758) by comparing different extenders. The epididymal sperm from 12 sexually mature males was recovered by retrograde flushing using Tris-based or coconut water-based (ACP®-116c) extenders. After initial evaluation, samples were diluted and frozen with the same extenders to which 20% egg yolk and 6% glycerol were added. After 2 weeks, thawing was performed at 37°C/60 s and sperm motility, vigour, morphology, functional membrane integrity, sperm viability, sperm plasma membrane integrity, and a computer-assisted semen analysis (CASA) were assessed. In addition, to evaluate the survival of frozen–thawed sperm, a thermal resistance test (TRT) was executed. Samples preserved using Tris were in better condition compared with those preserved using ACP®, showing higher values for most assessments performed, including CASA and the TRT (P<0.05). After determining Tris to be the better of the two extenders, additional samples were thawed using different thawing rates (37°C/60 s, 55°C/7 s, 70°C/8 s). Sperm thawed at 37°C/60 s had the greatest preservation (P<0.05) of viability (54.1 ± 5.9%) and functional membrane integrity (43.2 ± 5.4%), and had higher values for various CASA parameters. In conclusion, we suggest the use of a Tris-based extender added to egg yolk and glycerol for the cryopreservation of epididymal sperm obtained from collared peccaries. In order to achieve better post-thawing sperm quality, we suggest that samples should be thawed at 37°C/60 s.
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Žaja IŽ, Vince S, Milinković-Tur S, Milas NP, Samardžija M, Valpotić H, Berta V, Vilić M, Rakić K. Exogenous melatonin influences distribution of French Alpine buck spermatozoa in morphometrically distinct subpopulations during the non-breeding season. Anim Reprod Sci 2018. [PMID: 29525208 DOI: 10.1016/j.anireprosci.2018.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The aim of this study was to establish subpopulations of spermatozoa in bucks using the principal component (PC) and cluster analysis according to morphometric head and tail variables, and to determine differences in proportions of subpopulations between exogenous melatonin-treated and control bucks. The bucks (n = 12) were assigned to two groups comprising six bucks each. By the end of March, four melatonin implants were inserted in the bucks in the experimental group. Semen was collected weekly using an artificial vagina from March to May (the non-breeding season). Analyses were performed in stained smears by SFORM computer-assisted program for eight head and five tail variables. The PC analysis revealed four components with the most important value for each (head outline, head ellipticity, mid-piece length and width). Cluster analysis indicated there were three subpopulations (average-sized spermatozoa- C_1; small and less-elliptic - C_2; big and elliptic - C_3). Melatonin-treated bucks had a greater proportion of C_1 spermatozoa and a lesser proportion of C_2 spermatozoa during May (P < 0.05). To the best of our knowledge, this is the first study where PC and cluster analyses were performed on buck semen with head and tail variables analyzed together, in the same analysis, to evaluate spermatozoa population. Also, this is the first analysis of morphometric variables for assessing the influence of melatonin on spermatozoa subpopulations. The positive effect of melatonin on the proportions of spermatozoa in subpopulations could have been a consequence of the decreasing the proportion of the subpopulation with the least head and tail sizes and ellipticity.
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Affiliation(s)
- Ivona Žura Žaja
- Department of Physiology and Radiobiology, Faculty of Veterinary Medicine, University of Zagreb, 10 000, Zagreb, Croatia
| | - Silvijo Vince
- Clinic of Reproduction and Obstetrics, Faculty of Veterinary Medicine, University of Zagreb, 10 000, Zagreb, Croatia.
| | - Suzana Milinković-Tur
- Department of Physiology and Radiobiology, Faculty of Veterinary Medicine, University of Zagreb, 10 000, Zagreb, Croatia
| | - Nina Poljičak Milas
- Department of Pathophysiology, Faculty of Veterinary Medicine, University of Zagreb, 10 000, Zagreb, Croatia
| | - Marko Samardžija
- Clinic of Reproduction and Obstetrics, Faculty of Veterinary Medicine, University of Zagreb, 10 000, Zagreb, Croatia
| | - Hrvoje Valpotić
- Department of Animal Nutrition and Dietetics, Faculty of Veterinary Medicine, University of Zagreb, 10 000, Zagreb, Croatia
| | - Velimir Berta
- Veterinary Practice Varaždin, 42000, Varaždin, Croatia
| | - Marinko Vilić
- Department of Physiology and Radiobiology, Faculty of Veterinary Medicine, University of Zagreb, 10 000, Zagreb, Croatia
| | - Kristina Rakić
- Faculty of Veterinary Medicine, University of Zagreb, 10 000, Zagreb, Croatia
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Estimating the binding ability of collared peccary ( Pecari tajacu Linnaeus, 1758) sperm using heterologous substrates. Theriogenology 2017; 92:57-62. [DOI: 10.1016/j.theriogenology.2017.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 12/19/2016] [Accepted: 01/04/2017] [Indexed: 10/20/2022]
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14
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Souza A, Lima G, Peixoto G, Silva A, Oliveira M, Silva A. Use of Aloe vera–based extender for chilling and freezing collared peccary (Pecari tajacu) semen. Theriogenology 2016; 85:1432-8. [DOI: 10.1016/j.theriogenology.2016.01.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 01/04/2016] [Accepted: 01/04/2016] [Indexed: 11/26/2022]
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15
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Souza ALP, Lima GL, Peixoto GCX, de Souza Castelo T, Oliveira MGC, de Paula VV, Silva AR. Sperm characteristics following freezing in extenders supplemented with whole egg yolk and different concentrations of low-density lipoproteins in the collared peccary (Pecari tajacu). Reprod Biol 2015; 15:223-8. [DOI: 10.1016/j.repbio.2015.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 10/06/2015] [Accepted: 10/07/2015] [Indexed: 11/28/2022]
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16
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Yániz JL, Soler C, Santolaria P. Computer assisted sperm morphometry in mammals: A review. Anim Reprod Sci 2015; 156:1-12. [PMID: 25802026 DOI: 10.1016/j.anireprosci.2015.03.002] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 02/26/2015] [Accepted: 03/01/2015] [Indexed: 11/19/2022]
Affiliation(s)
- J L Yániz
- TECNOGAM Research Group, Environmental Sciences Institute (IUCA), University of Zaragoza, Huesca, Spain.
| | - C Soler
- Department of Functional Biology and Physical Anthropology, University of Valencia, Valencia, Spain
| | - P Santolaria
- TECNOGAM Research Group, Environmental Sciences Institute (IUCA), University of Zaragoza, Huesca, Spain
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