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Karanwal S, Pal A, Josan F, Patel A, Chera JS, Yadav S, Gaur V, Verma P, Badrhan S, Chauhan V, Bhakat M, Datta TK, Kumar R. Higher abundance of DLD protein in buffalo bull spermatozoa causes elevated ROS production leading to early sperm capacitation and reduction in fertilizing ability. J Anim Sci Biotechnol 2024; 15:126. [PMID: 39256863 PMCID: PMC11389063 DOI: 10.1186/s40104-024-01085-6] [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: 05/07/2024] [Accepted: 08/02/2024] [Indexed: 09/12/2024] Open
Abstract
BACKGROUD Before fertilization, spermatozoa undergo a crucial maturation step called capacitation, which is a unique event regulates the sperm's ability for successful fertilization. The capacitation process takes place as the spermatozoa pass through the female reproductive tract (FRT). Dihydrolipoamide dehydrogenase (DLD) protein is a post-pyruvate metabolic enzyme, exhibiting reactive oxygen species (ROS) production which causes capacitation. Additionally, other vital functions of DLD in buffalo spermatozoa are hyperactivation and acrosome reaction. DLD produces the optimum amount of ROS required to induce capacitation process in FRT. Depending on physiological or pathophysiological conditions, DLD can either enhance or attenuate the production of reactive oxygen species (ROS). Aim of this study was to investigate whether changes in the production of ROS in sperm cells can impact their ability to fertilize by triggering the capacitation and acrosome reaction. RESULTS In this study, abundance of DLD protein was quantified between high (n = 5) and low fertile bull (n = 5) spermatozoa. It was found that compared to high-fertile (HF) bulls, low-fertile (LF) bulls exhibited significantly (P < 0.05) higher DLD abundances. Herein, we optimised the MICA concentration to inhibit DLD function, spermatozoa were treated with MICA in time (0, 1, 2, 3, 4, and 5 h) and concentrations (1, 2.5, 5, and 10 mmol/L) dependent manner. Maximum DLD inhibition was found to be at 4 h in 10 mmol/L MICA concentration, which was used for further experimentation in HF and LF. Based on DLD inhibition it was seen that LF bull spermatozoa exhibited significantly (P < 0.05) higher ROS production and acrosome reaction in comparison to the HF bull spermatozoa. The kinematic parameters of the spermatozoa such as percent total motility, velocity parameters (VCL, VSL, and VAP) and other parameters (BCF, STR, and LIN) were also decreased in MICA treated spermatozoa in comparison to the control (capacitated) spermatozoa. CONCLUSIONS The present study provides an initial evidence explaining the buffalo bull spermatozoa with higher DLD abundance undergo early capacitation, which subsequently reduces their capacity to fertilize.
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Affiliation(s)
- Seema Karanwal
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Ankit Pal
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Fanny Josan
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Aditya Patel
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Jatinder Singh Chera
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Sonam Yadav
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Vikrant Gaur
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Preeti Verma
- NBGC Laboratory, National Bureau of Animal Genetics Resources, Karnal, Haryana, India
| | - Shiva Badrhan
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Vitika Chauhan
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Mukesh Bhakat
- Artificial Breeding Research Centre, LPM Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
- ICAR-Central Institute of Research On Goat, Makhdoom, Mathura, Uttar Pradesh, India
| | - Tirtha Kumar Datta
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
- ICAR-Central Institute for Research On Buffaloes, Hisar, Haryana, India
| | - Rakesh Kumar
- Animal Genomics Laboratory, Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
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Doshi P, Bhalaiya C, Suthar V, Patidar V, Joshi C, Patel A, Raval I. Untargeted metabolomics of buffalo urine reveals hydracyrlic acid, 3-bromo-1-propanol and benzyl serine as potential estrus biomarkers. J Proteomics 2024; 296:105124. [PMID: 38364903 DOI: 10.1016/j.jprot.2024.105124] [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: 09/26/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/18/2024]
Abstract
Buffalo is a silent heat animal and doesn't show prominent signs of estrous like cattle so it becomes difficult for farmers to determine the receptivity of the animal based purely on the animal behaviour. India, having a huge population size, needs to produce more milk for the population. Successful artificial insemination greatly depends on the receptivity of the animal. Hence the present study aimed to identify the changes in the metabolome of the buffalo. GC-MS based mass spectrometric analysis was deployed for the determination of estrous by differential expression of metabolites. It was found that hydracrylic acid, 3-bromo-1-propanol and benzyl serine were significantly upregulated in the estrous phase of buffalo (p.value ≤0.05, FC ≥ 2). The pathway enrichment analysis also supported the same as pathways related to amino acid metabolism and fatty acid metabolism were up regulated along with the Warburg effect which is linked to the rapid cell proliferation which might help prepare animals to meet the energy requirement during the estrous. Further analysis of the metabolic biomarkers using ROC analysis also supported these three metabolites as probable biomarkers as they were identified with AUC values of 0.7 or greater. SIGNIFICANCE: The present study focuses on the untargeted metabolomics studies of buffalo urine with special reference to the estrous phase of reproductive cycle. The estrous signals are more prominent in cattle, where animals show clear estrous signals such as mounting and discharge along with vocal signals. Buffalo is a silent heat animal and it becomes difficult for farmers to detect the estrous based on the physical and behavioral signals. Hence the present study focuses on GC-MS based untargeted metabolomics to identify differentially expressed urine metabolites. In this study, hydracrylic acid, 3-bromo-1-propanol and benzyl serine were found to be significantly upregulated in the estrous phase of buffalo (p-value ≤0.05, FC ≥ 2). Further confirmation of the metabolic biomarkers was done using Receiver operating characteristics (ROC) analysis which also supported these three metabolites as probable biomarkers as they had AUC values of 0.7 or greater. Hence, this study will be of prime importance for the people working in the area of animal metabolomics.
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Affiliation(s)
- Pooja Doshi
- Gujarat Biotechnology Research Centre (GBRC), 6(th) Floor MS Building, Sector 11, Gandhinagar, Gujarat 382010, India
| | - Chetana Bhalaiya
- Gujarat Biotechnology Research Centre (GBRC), 6(th) Floor MS Building, Sector 11, Gandhinagar, Gujarat 382010, India
| | - Vishal Suthar
- Kamdhenu University, Gandhinagar, Karmayogi Bhavan, Block-1, B1-Wing, 4th Floor, Sector-10-A, Gandhinagar, Gujarat 382010, India
| | - Vikas Patidar
- Gujarat Biotechnology Research Centre (GBRC), 6(th) Floor MS Building, Sector 11, Gandhinagar, Gujarat 382010, India
| | - Chaitanya Joshi
- Gujarat Biotechnology Research Centre (GBRC), 6(th) Floor MS Building, Sector 11, Gandhinagar, Gujarat 382010, India.
| | - Amrutlal Patel
- Gujarat Biotechnology Research Centre (GBRC), 6(th) Floor MS Building, Sector 11, Gandhinagar, Gujarat 382010, India.
| | - Ishan Raval
- Gujarat Biotechnology Research Centre (GBRC), 6(th) Floor MS Building, Sector 11, Gandhinagar, Gujarat 382010, India.
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Ciornei SG, Roşca P. Upgrading the fixed-time artificial insemination (FTAI) protocol in Romanian buffaloes. Front Vet Sci 2023; 10:1265060. [PMID: 37964914 PMCID: PMC10641460 DOI: 10.3389/fvets.2023.1265060] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/22/2023] [Indexed: 11/16/2023] Open
Abstract
The present study describes the challenges of assisted reproduction in Romanian buffaloes while increasing the efficacy of artificial insemination by choosing the most suitable method. The modified fixed-time artificial insemination (FTAI) protocol with sexed semen was used to increase the conception rate. This study included a total of 80 buffalo heifers that received ovarian stimulation using the OvSynch protocol. Two groups (n = 40), namely, a control group, in which the classic FTAI method was performed, and an experimental group, in which deep intrauterine AI was performed in cows that had developed a dominant follicle (US+UcFTAI), were randomly selected. The conception rate (CR) was 63.6% in the experimental group, which was statistically higher (P < 0.05) than the control group (30%). The ultrasound examination indicated that, using the OvSynch protocol, 82.5% (33 out of 40) of buffaloes developed a dominant follicle (DF) while the distribution between the warm and cold seasons was 75 and 90%, respectively. The CR was 60% during the hot season and 66.6% during the cold season. At calving, 92.5% female fetuses were born. The improved FTAI method in this study enhanced the results by reducing the waste of sexed semen and maximizing the response to OvSynch, making it a recommendation for practitioners. This study presents preliminary results and highlights that genetic progress is difficult to achieve. A systematic approach is needed in order to choose the most suitable biotechnological method for each farm.
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Affiliation(s)
| | - Petru Roşca
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Iasi University of Life Sciences, Iasi, Romania
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Bhaskar V, Saini S, Ansari S, Ghai S, Thakur A, Chopra S, Verma V, Malakar D. Allogenic adipose derived mesenchymal stem cells are effective than antibiotics in treating endometritis. Sci Rep 2023; 13:11280. [PMID: 37438398 DOI: 10.1038/s41598-023-36820-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 06/10/2023] [Indexed: 07/14/2023] Open
Abstract
Endometritis is a uterine inflammatory disease that causes reduced livestock fertility, milk production and lifespan leading to significant economic losses to the dairy industry. Mesenchymal stem cells (MSC) may act as an alternative for inefficacy of antibiotics and rising antibiotic resistance in endometritis. The present study aimed to cure the chronic endometritic buffaloes using allogenic adipose-derived MSCs (AD-MSC). AD-MSCs were isolated from buffalo adipose tissue and characterized by multilineage differentiation as well as MSC-specific markers. The in vivo safety and efficacy were assessed after infusion of AD-MSCs. In safety trial, cells were administered in healthy buffaloes via different routes (IV and IC) followed by examination of clinical and hematological parameters. In efficacy study, AD-MSCs treatments (IV and IC) and antibiotic therapy (ABT) in endometritic buffaloes were comparatively evaluated. AD-MSCs did not induced any immunological reaction in treated buffaloes. PMN count, CRP levels and VDS were significantly (p ≤ 0.05) reduced after AD-MSCs infusions in IV and IC groups and no significant difference was observed in antibiotic group. The IV group was marked with 50% absolute risk reduction in endometritis and 50% live calf births after artificial insemination in comparison with ABT group. Anti-inflammatory cytokines (IL4 and IL10) and anti-microbial peptides (PI3, CATHL4, LCN2 and CST3) expressions were significantly (p ≤ 0.05) upregulated in IV group. The calf delivery rate after the treatments in IV group was higher (50%, 3 calves) than the other groups (IC: 33.3%, 2 calves; ABT: 16.6%, 1 calf). In conclusion, the administration of AD-MSCs through IV route was found to be safe and efficacious for alleviating chronic endometritis in dairy buffaloes.
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Affiliation(s)
- Vinay Bhaskar
- Cell and Molecular Biology Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India, 132001
| | - Sikander Saini
- Cell and Molecular Biology Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India, 132001
| | - Shama Ansari
- Cell and Molecular Biology Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India, 132001
| | - Shubham Ghai
- Cell and Molecular Biology Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India, 132001
| | - Abhishek Thakur
- Cell and Molecular Biology Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India, 132001
| | - Suman Chopra
- Cell and Molecular Biology Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India, 132001
| | - Vivekananda Verma
- Cell and Molecular Biology Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India, 132001
| | - Dhruba Malakar
- Cell and Molecular Biology Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India, 132001.
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Ramazani N, Mahd Gharebagh F, Soleimanzadeh A, Arslan HO, Keles E, Gradinarska-Yanakieva DG, Arslan-Acaröz D, Zhandi M, Baran A, Ayen E, Dinç DA. Reducing oxidative stress by κ-carrageenan and C60HyFn: The post-thaw quality and antioxidant status of Azari water buffalo bull semen. Cryobiology 2023:S0011-2240(23)00032-9. [PMID: 37142111 DOI: 10.1016/j.cryobiol.2023.04.003] [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: 12/26/2022] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/06/2023]
Abstract
Azeri water buffalo is a species of great interest due to the high quality of its products such as milk. Due to the decreasing trend of its number and risk of extinction in the future, our attention is directed towards ensuring the preservation of its genetic reserves by keeping its sperm. Using antioxidants in semen extender is one of the ways to reduce the detrimental effects of freezing process on post-thawed quality of spermatozoa. This study was conducted to determine the effect of κ-carrageenan (k-CRG) and C60HyFn supplemented semen extender on the quality of post-thawed Azari water buffalo spermatozoa. A total of 30 semen samples were obtained from three buffaloes using an artificial vagina (twice a week for five weeks = 10 replicates). The samples (n = 3) from each replicate were pooled and divided into equal aliquots to prepare 14 extender groups, including control (C), k-0.2, K-0.4, K-0.6, K-0.8 (containing 0.2, 0.4, 0.8 mg K-CRG/mL, respectively), C-0.1, C-0.2, C-0.4, C-0.8, C-1, C-5, C-10, C-20, and C-40 (containing 0.1, 0.2, 0.4, 0.6, 0.8, 1, 5, 10, 20, 40 μM C60HyFn, respectively), and then frozen. After thawing, motility and velocity parameters, plasma membrane integrity (PMI) and functionality (PMF), DNA damage, Hypo-osmotic swelling (HOS) test, malondialdehyde (MDA), total antioxidant capacity (TAC), glutathione peroxidase (GPx), superoxide dismutase (SOD), catalase glutathione activities and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging were evaluated. In vivo fertility was compared between k-0.6, C-1 and control groups. 60 buffalo were inseminated 24 h after the onset of estrus. The diagnosis of pregnancy was performed rectally at least 60 days after fertilization. Total and progressive motility and velocity parameters were improved by k-0.4, k-0.6, k-0.8, C-0.4, C-0.8, C-1, C-5, and C-10 groups) compared to the other groups. Plasma membranes integrity and PMF were improved by k-0.4, k-0.6, C-0.4, C-0.8, C-1, C-5, and C-10 groups compared to other groups, while in terms of sperm DNA damage K-0.4, K-0.6, K-0.8, C-0.2, C-0.4, C-0.8, C-1, C-5, and C-10 groups showed better results compared to the control group. The evidence also showed that k- 0.4, k-0.6, k-0.8, C-0.4, C-0.8, C-1, C-5, and C-10 groups could improve TAC, and decrease MDA levels. Also, k-0.4, k-0.6, k-0.8, C-0.2, C-0.4, C-0.8, C-1, C-5, and C-10 groups could improve GPx, CAT, and GSH levels, but no significant difference was found regarding SOD compared to the other groups. DPPH scavengers were tested by K-0.6, K-0.8 and C-1, C-5, C-10, C-0.8, C-0.4 and C-0.2 groups and compared to other groups improved. The fertility rate [70% (14/20)] was higher in C-1 than other groups. To conclude that k-CRG and C60HyFn supplementation can increase the quality parameters of cryopreserved buffalo semen after thawing and that 1 M C60HyFn can increase in vivo fertility of buffalo semen.
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Affiliation(s)
- N Ramazani
- Biology and Animal Reproduction, Urmia, Iran
| | - F Mahd Gharebagh
- Department of Theriogenology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - A Soleimanzadeh
- Department of Theriogenology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
| | - H O Arslan
- Republic of Turkey Ministry of Agriculture and Foresty International Center for Livestock Research and Training, Ankara, Turkiye
| | - E Keles
- Republic of Turkey Ministry of Agriculture and Foresty International Center for Livestock Research and Training, Ankara, Turkiye
| | - D G Gradinarska-Yanakieva
- Department of Reproductive Biotechnologies and Cryobiology of Gametes, Institute of Biology and Immunology of Reproduction "Acad. Kiril Bratanov" at Bulgarian Academy of Sciences, Bulgaria
| | - D Arslan-Acaröz
- Department of Biochemistry, Afyon Kocatepe University, Faculty of Veterinary Medicine, 03030, Afyonkarahisar, Turkiye; Faculty of Veterinary Medicine, Kyrgyz-Turkish Manas University, Bishkek, KG-720038, Kyrgyzstan; ACR Bio, Food and Biochemistry Research and Development, Afyonkarahisar, 03200, Turkey
| | - M Zhandi
- Department of Animal Science, Faculty of Agriculture, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - A Baran
- Department of Reproduction and Artificial Insemination, Clinical Sciences, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, Aveilar Campus, 34320, Avcilar-Istanbul, Turkiye
| | - E Ayen
- Department of Theriogenology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - D A Dinç
- Department of Obstetrics ang Gynecology, University of Selcuk, Faculty of Veterinary Medicine, Konya, Turkiye
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Selvaraju S, Ramya L, Swathi D, Archana SS, Lavanya M, Krishnappa B, Binsila BK, Mahla AS, Arangasamy A, Andonissamy J, Kumar P, Sharma RK. Cryostress induces fragmentation and alters the abundance of sperm transcripts associated with fertilizing competence and reproductive processes in buffalo. Cell Tissue Res 2023:10.1007/s00441-023-03764-8. [PMID: 37079096 DOI: 10.1007/s00441-023-03764-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 03/09/2023] [Indexed: 04/21/2023]
Abstract
The study aimed to assess the influence of cryostress on RNA integrity and functional significance in sperm fertilizing ability. The fresh and post-thawed buffalo sperm (n = 6 each) samples were evaluated for their functional attributes, and sperm total RNA was subjected to transcriptome sequencing followed by validation using real-time PCR and dot blot. Overall, 6911 genes had an expression of FPKM > 1, and among these 431 genes were abundantly expressed (FPKM > 20) in buffalo sperm. These abundantly expressed genes regulate reproductive functions such as sperm motility (TEKT2, SPEM1, and PRM3, FDR = 1.10E-08), fertilization (EQTN, PLCZ1, and SPESP1, FDR = 7.25E-06) and the developmental process involved in reproduction (SPACA1, TNP1, and YBX2, FDR = 7.21E-06). Cryopreservation significantly (p < 0.05) affected the structural and functional membrane integrities of sperm. The expression levels of transcripts that regulate the metabolic activities and fertility-related functions were compromised during cryopreservation. Interestingly, cryostress induces the expression of genes involved (p < 0.05) in chemokine signaling (CX3CL1, CCL20, and CXCR4), G-protein coupled receptor binding (ADRB1, EDN1, and BRS3), translation (RPS28, MRPL28, and RPL18A), oxidative phosphorylation (ND1, ND2, and COX2), response to reactive oxygen species (GLRX2, HYAL2, and EDN1), and immune responses (CX3CL1, CCL26, and TBXA2R). These precociously expressed genes during cryopreservation alter the signaling mechanisms that govern sperm functional competence and can impact fertilization and early embryonic development.
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Affiliation(s)
- Sellappan Selvaraju
- Reproductive Physiology Laboratory, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru, 560030, India.
| | - Laxman Ramya
- Reproductive Physiology Laboratory, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru, 560030, India
| | - Divakar Swathi
- Reproductive Physiology Laboratory, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru, 560030, India
| | | | - Maharajan Lavanya
- Reproductive Physiology Laboratory, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru, 560030, India
| | - Balaganur Krishnappa
- Reproductive Physiology Laboratory, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru, 560030, India
| | - Bala Krishnan Binsila
- Reproductive Physiology Laboratory, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru, 560030, India
| | - Ajit Singh Mahla
- Reproductive Physiology Laboratory, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru, 560030, India
- Physiology and Biochemistry Division, ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, 304501, India
| | - Arunachalam Arangasamy
- Reproductive Physiology Laboratory, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru, 560030, India
| | - Jerome Andonissamy
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, 125001, India
| | - Pradeep Kumar
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, 125001, India
| | - Rakesh Kumar Sharma
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, 125001, India
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Presicce GA, Vistocco D, Capuano M, Navas L, Salzano A, Bifulco G, Campanile G, Neglia G. Pregnancies following Protocols for Repetitive Synchronization of Ovulation in Primiparous Buffaloes in Different Seasons. Vet Sci 2022; 9:vetsci9110616. [PMID: 36356093 PMCID: PMC9693142 DOI: 10.3390/vetsci9110616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/01/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
Simple Summary Artificial Insemination (AI) is mainly used after estrus synchronization in buffalo, and consecutive synchronization protocols are used to enhance reproductive efficiency. In this study, two different synchronization protocols have been used: Ovsynch vs. a P4-administration, and their efficiency in primiparous animals has been evaluated in different seasons for up to four cycles of re-synchronization protocols. Results show that the pregnancy rate upon the initial AI tends to be higher in P4 treated buffaloes, and that AI efficiency after re-synchronization through P4 is higher than the Ovsynch protocol. In conclusion, synchronization treatments must be selected according to the season of the year. The results derived from this study could be useful for buffalo breeders who want to improve the reproductive efficiency in primiparous animals in commercially managed buffalo herds. Abstract Primiparous buffaloes were tested in two periods of the year characterized, by either low or high reproductive efficiency. They were subjected to two protocols for synchronization of ovulation: (i) Ovsynch (OV) and (ii) progesterone based (P4) treatment. After calving, the animals underwent a series of four cycles of re-synchronization protocols. The season did not affect pregnancy rates when the results of the two treatments were pooled together with regard to the first synchronization protocol, followed by AI. Pregnancy rates were similar during the low breeding season (50.3% vs. 57.4% in OV and P4, respectively), but different during the high breeding season (50.4% vs. 67.7% in OV and P4, respectively; p = 0.000). Logistic regression confirmed a significant effect of treatment and season interaction on pregnancy (p = 0.003). Following re-synchronization, a treatment by season interaction was detected during the low breeding season (odds ratio = 2.233), in favor of P4. Finally, a survival analysis showed a better response of animals subjected to P4 treatment from the second AI onward. In conclusion, the pooled data of pregnancy rates from both treatments between seasons are not different following AIs. Better results, though, were obtained from the implementation of P4 treatment, and are recorded in a season-fashioned mode when the comparison is made following first or cumulative AIs.
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Affiliation(s)
- Giorgio A. Presicce
- Agenzia Regionale per lo Sviluppo e l’Innovazione dell’Agricoltura del Lazio (ARSIAL), 00162 Rome, Italy
| | - Domenico Vistocco
- Department of Political Science, University of Naples Federico II, 80131 Naples, Italy
| | | | - Luigi Navas
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80137 Naples, Italy
- Correspondence: ; Tel.: +39-81-2536047
| | - Angela Salzano
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80137 Naples, Italy
| | - Giovanna Bifulco
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80137 Naples, Italy
| | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80137 Naples, Italy
| | - Gianluca Neglia
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80137 Naples, Italy
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Effects of breeding season and estrus synchronization protocols on the fertility of anestrus swamp buffaloes (Bubalus Bubalis). Livest Sci 2022. [DOI: 10.1016/j.livsci.2022.105043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Abulaiti A, Naseer Z, Ahmed Z, Wang D, Hua G, Yang L. Effect of Different Synchronization Regimens on Reproductive Variables of Crossbred (Swamp × Riverine) Nulliparous and Multiparous Buffaloes during Peak and Low Breeding Seasons. Animals (Basel) 2022; 12:415. [PMID: 35203122 PMCID: PMC8868071 DOI: 10.3390/ani12040415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/29/2022] [Accepted: 01/31/2022] [Indexed: 11/17/2022] Open
Abstract
The present study was conducted to examine the effect of conventional the Ovsynch protocol (OVS) and a modified Ovsynch synchronization (GPGMH) protocol on the follicular dynamics, estrus, ovulation, and pregnancy in nulliparous and multiparous crossbred (swamp × riverine) buffaloes during different seasons. GPGMH or OVS protocols were used to synchronize nulliparous (n = 128; GPGMH = 94, OVS = 34) and multiparous (n = 154; GPGMH = 122, OVS = 32) buffaloes during the peak (n = 186; GPGMH = 143, OVS = 43) and low breeding (n = 96; GPGMH = 73, OVS = 23) seasons. Buffaloes were monitored for follicular dynamics, estrus response, ovulation, and pregnancy rates. The results showed that protocol, parity, and season had significant effects on estrus, ovulation, and pregnancy variables, and interactions among parity and protocol, season and protocol, and season and parity were observed for few of reproductive indices in the crossbred buffaloes. There were no significant (p > 0.05) interaction for protocol, parity and season. In multiparous buffaloes, the application of the GPGMH protocol significantly (p < 0.05) increased the interaction to the interval to estrus onset after the second GnRH, estrus response, ovulation rate, and pregnancy rate, and lowered (p < 0.05) the silent estrus when compared with the conventional OVS protocol. During the peak breeding season, the application of the GPGMH protocol significantly (p < 0.05) improved the interaction to the estrus response, ovulation rate, and pregnancy rate, while it lowered (p < 0.05) the silent estrus incidence when compared to the conventional OVS protocol. In conclusion, the GPGMH protocol, in comparison to the OVS protocol, improves the follicular dynamics, estrus response, ovulation, and pregnancy rates in crossbred multiparous buffaloes during the peak breeding seasons.
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Affiliation(s)
- Adili Abulaiti
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.A.); (Z.A.)
- International Joint Research Centre for Animal Genetics, Breeding and Reproduction, Wuhan 430070, China
- Hubei Province’s Engineering Research Centre in Buffalo Breeding and Products, Wuhan 430070, China
| | - Zahid Naseer
- Theriogenology Section, Department of Clinical Studies, Faculty of Veterinary and Animal Sciences, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46000, Pakistan;
| | - Zulfiqar Ahmed
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.A.); (Z.A.)
| | - Dong Wang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
| | - Guohua Hua
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.A.); (Z.A.)
- International Joint Research Centre for Animal Genetics, Breeding and Reproduction, Wuhan 430070, China
- Hubei Province’s Engineering Research Centre in Buffalo Breeding and Products, Wuhan 430070, China
| | - Liguo Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.A.); (Z.A.)
- International Joint Research Centre for Animal Genetics, Breeding and Reproduction, Wuhan 430070, China
- Hubei Province’s Engineering Research Centre in Buffalo Breeding and Products, Wuhan 430070, China
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10
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Abulaiti A, El-Qaliouby HS, El Bahgy HEK, Naseer Z, Ahmed Z, Hua G, Yang L. GPGMH, a New Fixed Timed-AI Synchronization Regimen for Swamp and River Crossbred Buffaloes (Bubalus bubalis). Front Vet Sci 2021; 8:646247. [PMID: 34552970 PMCID: PMC8450502 DOI: 10.3389/fvets.2021.646247] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 07/29/2021] [Indexed: 11/13/2022] Open
Abstract
The crossbreeding of Swamp and River type buffalo breeds is practiced for the improvement of milk yield and reproductive performance in swamp buffalo herds. This study aimed to modify the Ovsynch synchronization protocol (GPG) and improve the fixed-timed artificial insemination (FTAI) for better reproductive performance of crossbred buffaloes. Comparison of four conventional synchronization protocols [pregnant mare gonadotropin-prostaglandin F2α-gonadotropin-releasing hormone (PmPG), gonadotropin-releasing hormone-prostaglandin F2α-gonadotropin-releasing hormone (GPG), prostaglandin F2α-gonadotropin-releasing hormone-prostaglandin F2α-estradiol benzoate (PGPE), and progesterone-pregnant mare gonadotropin-prostaglandin F2α-gonadotropin-releasing hormone (P4PmPG)] in crossbred buffaloes showed that the GPG protocol treated buffaloes displayed higher (P < 0.05) estrus response with an increasing tendency in ovulation (84.6%) and pregnancy rates (30.8%) than PmPG, PGPE, and P4PmPG treated buffaloes. Buffaloes treated with a dose of 0.4 (mg/kg) mifepristone combined with GPG, exhibited higher (P < 0.05) estrous response (82.4%), ovulation (94.1%), and pregnancy (47.1%) rates compared with other doses (0, 0.3, or 0.5 mg/kg) groups. Injection of mifepristone along second GnRH injection in buffaloes improved (P < 0.05) pregnancy rate (35.3%) when compared to before or after the second GnRH of GPG protocol. Single AI after 24 h of mifepristone or second GnRH injection seems the best time to enhance the pregnancy rates in buffaloes compared to double or other single AI times in the modified GPGMH protocol. In comparison, GPGMH reduced the follicular cyst incidence (P < 0.05) with increasing ovulation (P > 0.05) and pregnancy rates (P > 0.05) than the P4GPG and GPG protocols in crossbred buffaloes. The current study supported that new synchronization protocol (modified of GPG protocol; GPGMH) by the inclusion of mifepristone (with a dose of 0.4 mg/kg along second GnRH), AI after 24 h of mifepristone or second GnRH, and human chorionic gonadotropin (hCG at day 5 of AI) enhance the ovulation and pregnancy rates in crossbred buffaloes.
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Affiliation(s)
- Adili Abulaiti
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Hadeel S El-Qaliouby
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,Department of Animal Wealth Development, Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Halla E K El Bahgy
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Zahid Naseer
- Faculty of Veterinary and Animal Sciences, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Zulfiqar Ahmed
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Guohua Hua
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,International Joint Research Centre for Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,Hubei Province's Engineering Research Centre in Buffalo Breeding and Products, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Liguo Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,International Joint Research Centre for Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,Hubei Province's Engineering Research Centre in Buffalo Breeding and Products, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
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11
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Guo L, Li M, Gao X, Yang Y, Zhao J, Wang J, Lu W. Two melatonin treatments improve the conception rate after fixed-time artificial insemination in beef heifers following synchronisation of oestrous cycles using the CoSynch-56 protocol. Aust Vet J 2021; 99:449-455. [PMID: 34254288 DOI: 10.1111/avj.13100] [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: 08/18/2020] [Revised: 04/09/2021] [Accepted: 05/31/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE This study investigated the effect of melatonin administration in combination with the CoSynch-56 protocol on the conception rate after artificial insemination (AI) in beef heifers. METHODS Eighty-six beef heifers were allocated to four treatments in combination with CoSynch-56 treatment. All heifers, excluding the control group (CTR = 25), were injected with melatonin on day 1. The melatonin (MT = 20) and MT + human chorionic gonadotropin (MT + hCG = 21) groups received no further treatment with melatonin. Each heifer was treated with gonadotropin-releasing hormone (GnRH) on day 4, prostaglandin F2α (PGF2α) on day 11, and GnRH and AI 56 h later. The fourth group (2MT = 20) was injected again with melatonin concurrent with AI, and the MT + hCG group received hCG on day 19. Pregnancy diagnosis was performed using transrectal ultrasonography 45 days after AI and blood samples were collected via caudal venipuncture on days 0-1, 14-15, 24 and 59. Concentrations of progesterone (P4) and the activities of oxidative stress-related enzymes were determined using enzyme-linked immunosorbent assay. RESULTS The conception rate was greater in the 2MT group (75%) than in the other groups, while there was no significant difference among the CTR (44%), MT (45%) and MT + hCG (38.1%) groups. Treatment with melatonin increased superoxide dismutase and glutathione peroxidase activities and decreased malondialdehyde concentrations but did not significantly affect the concentration of P4. CONCLUSION Our results indicate that the administration of melatonin twice during the CoSynch-56 protocol may increase conception rates in beef heifers.
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Affiliation(s)
- L Guo
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Jilin Province Engineering Laboratory for Ruminant Reproductive Biotechnology and Healthy Production, College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - M Li
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Jilin Province Engineering Laboratory for Ruminant Reproductive Biotechnology and Healthy Production, College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - X Gao
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Jilin Province Engineering Laboratory for Ruminant Reproductive Biotechnology and Healthy Production, College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Y Yang
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Jilin Province Engineering Laboratory for Ruminant Reproductive Biotechnology and Healthy Production, College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - J Zhao
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Jilin Province Engineering Laboratory for Ruminant Reproductive Biotechnology and Healthy Production, College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - J Wang
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Jilin Province Engineering Laboratory for Ruminant Reproductive Biotechnology and Healthy Production, College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - W Lu
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, Jilin, 130118, China.,Jilin Province Engineering Laboratory for Ruminant Reproductive Biotechnology and Healthy Production, College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
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12
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Lack of effect of melatonin on ovarian function and response to estrous synchronization and fixed-time AI during the nonbreeding season in lactating dairy buffalo (Bubalus bubalis). Anim Reprod Sci 2021; 231:106796. [PMID: 34174498 DOI: 10.1016/j.anireprosci.2021.106796] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 12/16/2022]
Abstract
The present study was conducted to examine whether pretreatment with melatonin would enhance ovarian follicular functions and increase response to estrous synchronization and fixed-time AI (TAI) during the nonbreeding season in lactating dairy buffalo. In Experiment 1, buffalo cows without a detectable corpus luteum (CL) were assigned on Day -20 (D-20) to three groups: control (n = 12); melatonin (n = 13); progesterone (P4) (n = 15). Cows in the melatonin group were implanted with melatonin on D-20. From D0 to D9, there was imposing of an estrous synchronization treatment regimen using either a standard Ovsynch protocol (control, melatonin) or a P4-based Ovsynch treatment regimen (P4). There were no differences (P > 0.05) among groups for the presence of a CL at D0, size of the largest follicle at D0, ovulation to GnRH injection at D0 and D9, or the time to ovulation after injection of GnRH at D9. In Experiment 2, there was imposing of the same treatment regimens as in Experiment 1, with inclusion of TAI. Females of the P4 group had a greater (P = 0.001) pregnancy/AI percentage (60 %) than those in the control (17 %) and melatonin (23 %) groups. Females of the P4 group also had a larger (P = 0.005) CL at D20 compared with those in the control and melatonin groups. Findings indicate treatment with melatonin for 20 days did not affect ovarian functions or the response to an estrous synchronization treatment regimen and TAI during the nonbreeding season in lactating dairy buffalo.
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13
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Shah SAH, Andrabi SMH. A systematic review and meta-analysis of spermatozoa cryopreservation, in vitro and in vivo fertility practices in water buffalo. Vet Res Commun 2021; 45:47-74. [PMID: 33929679 DOI: 10.1007/s11259-021-09789-0] [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: 02/16/2021] [Accepted: 04/08/2021] [Indexed: 10/21/2022]
Abstract
We explored different aspects of buffalo spermatozoa during cryopreservation. The meta-data comprised of 285 studies, published from January 2008 to March 2020. A free web tool CADIMA as well as PRISMA 2009 Flow Diagram were used for carrying out this study. The inter-reviewer agreement among studies allocated was satisfactory for criteria A (selection bias), B (performance bias), C (detection bias) and D (attrition bias), respectively. India led the percent (%) research ladder with 34.4, followed by Pakistan (29.5), Egypt (12.3), Iran (7.7), Italy (5.6), Indonesia (3.2), China (2.1), Brazil (1.4), Thailand (1.1), Philippines and Bulgaria (0.7 each), Saudi Arabia, Turkey, Vietnam, and USA (0.4 each). Among four categories of studies, Group-1 evaluated only supplements/additives/media in the freezing semen extender (n = 191/285; 67.02%); Group-2 conducted in vivo fertilization (n = 62/285; 21.75%) and Group-3 conducted in vitro fertilization/ cleavage rate/penetration rate/ blastocyst yields (n = 28/285; 9.82%) with their specific cryodiluents/media, respectively. Group-4 conducted different experimental supplements/additives/media and carried out both in vitro and in vivo fertilization simultaneously (n = 4/285; 1.40%). Conventional spermatozoa cryopreservation was reported by 51.9% studies followed by programmable fast freezing by 20.7% studies. A few leading extender types included BioXcell (3.9%); Soyamilk-skim (3.5%); and Andromed (2.1%). The study also describes French straws for semen filling, cooling temperatures, extension time, equilibration time, cryopreservation stages, thawing temperatures, seasons, thawing time, and stains used during semen evaluation assays. The study concludes that the research on spermatozoa cryopreservation of buffalo is largely conducted at quality level and a need of applying these findings for evaluation of fertility potential (in vivo and in vitro) is indispensable for effective genetic improvement.
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Affiliation(s)
- Syed Aftab Hussain Shah
- Pakistan Scientific and Technological Information Center, Quaid-i-Azam University Campus, Islamabad, 44000, Pakistan.
| | - Syed Murtaza Hassan Andrabi
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Center, Islamabad, 45500, Pakistan.
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14
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Gómez M, Rossi D, Cimmino R, Zullo G, Gombia Y, Altieri D, Di Palo R, Biffani S. Accounting for Genetic Differences Among Unknown Parents in Bubalus bubalis: A Case Study From the Italian Mediterranean Buffalo. Front Genet 2021; 12:625335. [PMID: 33633785 PMCID: PMC7901897 DOI: 10.3389/fgene.2021.625335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/13/2021] [Indexed: 11/13/2022] Open
Abstract
The use of genetic evaluations in the Water Buffalo by means of a Best Linear Unbiased Prediction (BLUP) animal model has been increased over the last two-decades across several countries. However, natural mating is still a common reproductive strategy that can increase the proportion of missing pedigree information. The inclusion of genetic groups in variance component (VC) and breeding value (EBV) estimation is a possible solution. The aim of this study was to evaluate two different genetic grouping strategies and their effects on VC and EBV for composite (n = 5) and linear (n = 10) type traits in the Italian Mediterranean Buffalo (IMB) population. Type traits data from 7,714 buffalo cows plus a pedigree file including 18,831 individuals were provided by the Italian National Association of Buffalo Breeders. VCs and EBVs were estimated for each trait fitting a single-trait animal model and using the official DNA-verified pedigree. Successively, EBVs were re-estimated using modified pedigrees with two different proportion of missing genealogies (30 or 60% of buffalo with records), and two different grouping strategies, year of birth (Y30/Y60) or genetic clustering (GC30, GC60). The different set of VCs, estimated EBVs and their standard errors were compared with the results obtained using the original pedigree. Results were also compared in terms of efficiency of selection. Differences among VCs varied according to the trait and the scenario considered. The largest effect was observed for two traits, udder teat and body depth in the GC60 genetic cluster, whose heritability decreased by -0.07 and increased by +0.04, respectively. Considering buffalo cows with record, the average correlation across traits between official EBVs and EBVs from different scenarios was 0.91, 0.88, 0.84, and 0.79 for Y30, CG30, Y60, and CG60, respectively. In bulls the correlations between EBVs ranged from 0.90 for fore udder attachment and udder depth to 0.96 for stature and body length in the GC30 scenario and from 0.75 for udder depth to 0.90 for stature in the GC60 scenario. When a variable proportion of missing pedigree is present using the appropriate strategy to define genetic groups and including them in VC and EBV is a worth-while and low-demanding solution.
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Affiliation(s)
- Mayra Gómez
- Italian National Association of Buffalo Breeders, Caserta, Italy
| | - Dario Rossi
- Italian National Association of Buffalo Breeders, Caserta, Italy
| | - Roberta Cimmino
- Italian National Association of Buffalo Breeders, Caserta, Italy
| | - Gianluigi Zullo
- Italian National Association of Buffalo Breeders, Caserta, Italy
| | - Yuri Gombia
- Italian National Association of Buffalo Breeders, Caserta, Italy
| | - Damiano Altieri
- Italian National Association of Buffalo Breeders, Caserta, Italy
| | - Rossella Di Palo
- Department of Veterinary Medicine and Animal Production, University of Federico II, Naples, Italy
| | - Stefano Biffani
- Institute of Agricultural Biology and Biotechnology, National Research Council, Milan, Italy
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15
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Weiller J, Ferraz Júnior M, Dias FJ, Hattori G. Use of Estradiol Cypionate to induce ovulation in buffalo raised in floodplain areas of Itacoatiara, Amazonas. ARQ BRAS MED VET ZOO 2021. [DOI: 10.1590/1678-4162-11956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT This study aimed to determine the efficiency of estradiol cypionate (EC) as an ovulation inducer in a Timed Artificial Insemination protocol. 69 buffalo cows received an intravaginal progesterone device and 2mg of estradiol benzoate (EB) at D0. On D9, the intravaginal device was removed and 0.53mg of prostaglandin (PGF2α) and 400UI of equine chorionic gonadotrophin (eCG) were applied. The cows were distributed into two groups: the first group received 1mg of EC (ECG) in D9, and the second group received 1mg of EB (EBG) in D10. Inseminations occurred on D11. Ovarian activity and pregnancy diagnosis were analyzed by ultrasonography. There was no difference (P>0.05) in follicular diameter (9.6 ± 0.89mm vs. 10.7 ± 1.12mm; P=0.06), in ovulation rate (90.9% vs. 90.9%; P=1) and pregnancy rate (58.8% vs. 62.9%; P=0.79), however, buffalo cows from the ECG treatment have less time between P4 removal and ovulation when compared to EBG buffalos (37.4h vs. 52.8h; P=0.001), respectively. Thus, it was concluded that the implantation of TAI in the floodplain of Amazonas is feasible and the use of EC results in successful rates, similar to EB.
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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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Patil SK, Somashekar L, Selvaraju S, Jamuna KV, Parthipan S, Binsila BK, Prasad RV, Ravindra JP. Immuno-histological mapping and functional association of seminal proteins in testis and excurrent ducts with sperm function in buffalo. Reprod Domest Anim 2020; 55:998-1010. [PMID: 32515513 DOI: 10.1111/rda.13742] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/03/2020] [Accepted: 06/01/2020] [Indexed: 12/15/2022]
Abstract
The region-specific expression of seminal proteins in testis and excurrent duct system determines the quality and function of the spermatozoa. In the present study, localization and expression of some of the seminal proteins such as insulin-like growth factor receptor 1β (IGF-1Rβ), phosphatidylethanolamine-binding protein 4 (PEBP4), α-tubulin and tissue factor pathway inhibitor 2 (TFPI2) were carried out in testis, excurrent duct system and spermatozoa of buffalo. IGF-1Rβ was localized in the cells of the seminiferous tubules of the testis, except in primary spermatocytes. The PEBP4 was localized only in the elongated spermatid, whereas α-tubulin and TFPI2 proteins were localized in all cells of the seminiferous tubule including spermatocyte. In the buffalo spermatozoa, IGF-1Rβ, PEBP4, α-tubulin and TFPI2 were localized in the acrosome region, the post-acrosomal region till the tail end, post-acrosome to the entire tail region and the equatorial region, respectively. The study indicates that IGF-1R, α-tubulin and PEBP4 proteins regulate spermatogenesis, whereas TFPI2 may be involved during the zona binding process of the buffalo spermatozoa.
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Affiliation(s)
- Sunil Kumar Patil
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India.,Department of Veterinary Anatomy and Histology, Veterinary College, KVAFSU, Bengaluru, India
| | - Lakshminarayana Somashekar
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Sellappan Selvaraju
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Kolatalu V Jamuna
- Department of Veterinary Anatomy and Histology, Veterinary College, KVAFSU, Bengaluru, India
| | - Shivashanmugam Parthipan
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Bala Krishnan Binsila
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | | | - Janivara Parameshwaraiah Ravindra
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
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Neglia G, de Nicola D, Esposito L, Salzano A, D'Occhio MJ, Fatone G. Reproductive management in buffalo by artificial insemination. Theriogenology 2020; 150:166-172. [PMID: 31982156 DOI: 10.1016/j.theriogenology.2020.01.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 01/11/2020] [Indexed: 10/25/2022]
Abstract
Artificial insemination (AI) is important for genetic improvement and to control the period of breeding in buffalo and has increased significantly over the past 20 years. AI is more difficult in buffalo compared with cattle due to variable estrous cycles, reduced estrous behavior, and reproductive seasonality. The latter is associated with a higher incidence of anestrus and increased embryonic mortality during the nonbreeding season. Protocols to control the stage of the estrous cycle have undergone recent development in buffalo. These protocols are based on the control of both the luteal phase of the cycle, mainly by prostaglandins and progesterone, and follicle development and ovulation, by prostaglandins, progesterone, GnRH, hCG, eCG and estradiol. Protocols that synchronize the time of ovulation enable fixed timed AI, avoiding estrous detection. Factors to consider when selecting an AI protocol include animal category (heifers, primiparous or pluriparous), reproductive status (cyclic or anestrus), and season. This review looks at the current status of estrus synchronization and AI in buffalo and provides some practical suggestions for application of AI in the field.
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Affiliation(s)
- Gianluca Neglia
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy.
| | - Donato de Nicola
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy
| | - Luigi Esposito
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy
| | - Angela Salzano
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy
| | - Michael John D'Occhio
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Gerardo Fatone
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy
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Yadav SK, Singh P, Kumar P, Singh SV, Singh A, Kumar S. Scrotal infrared thermography and testicular biometry: Indicator of semen quality in Murrah buffalo bulls. Anim Reprod Sci 2019; 209:106145. [PMID: 31514922 DOI: 10.1016/j.anireprosci.2019.106145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 07/23/2019] [Accepted: 08/02/2019] [Indexed: 10/26/2022]
Abstract
This aim of this study was to assess the relationship, if any, of scrotal surface temperature gradient (SSTG), scrotal circumference (SC) and testicular covering thickness (TCT) with semen quality in Murrah buffalo breeding bulls. For this, buffalo breeding bulls (n = 130) were selected from four different semen centres. The ejaculates of each bull were evaluated for ejaculate volume (EV), mass motility (MM); concentration (SPC), motility (SM), viability and abnormalities (SA). The SSTG, SC and TCT of individual bulls were quantified using digital infrared thermography, measuring tape and ultrasonography, respectively. The bulls were divided into three groups on the basis of SSTG (≤ 4 °C, 4.1 to 6.4 °C and ≥ 6.5 °C), and SC (<31, 31 to 35 and> 35 cm) and into two groups on the basis of TCT (5 to 7.2 and 7.4 to 10.4 mm). Results indicated the bulls with a larger temperature gradient and larger SC produced greater quality semen than those with a lesser temperature gradient. The MM (P < 0.01) and SPC (P < 0.05) varied among the groups along with SSTG. Among the SC groups the EV, MM, SPC and SM (P < 0.01), and viability (P < 0.05) varied as did the SC. The bulls with a lesser TCT had a lesser SA (P < 0.05) as compared to the group with the greater TCT. Buffalo bulls having a greater SSTG, SC and lesser TCT produced semen of greater quality and these variables may be used as criteria for breeding soundness evaluation.
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Affiliation(s)
- Satendra Kumar Yadav
- Livestock Production and Management Section, ICAR- National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Pawan Singh
- Livestock Production and Management Section, ICAR- National Dairy Research Institute, Karnal 132001, Haryana, India.
| | - Pradeep Kumar
- Animal Physiology and Reproduction Division, ICAR- Central Institute for Research on Buffaloes, Hisar 125001, Haryana, India.
| | - S V Singh
- Division of Animal Physiology, ICAR- National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Ajeet Singh
- Livestock Production and Management Section, ICAR- National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Sunil Kumar
- Livestock Production and Management Section, ICAR- National Dairy Research Institute, Karnal 132001, Haryana, India
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Mahalingam S, Dharumadurai D, Archunan G. Vaginal microbiome analysis of buffalo (Bubalus bubalis) during estrous cycle using high-throughput amplicon sequence of 16S rRNA gene. Symbiosis 2019. [DOI: 10.1007/s13199-018-00595-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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21
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Stella ED, Ramos ADA, de Ruediger FR, Dantas A, Yamada PH, Codognoto VM, Salgado LC, Brochine S, Oba E. Evaluation of buffaloes' follicular dynamics and stress state under different ovulation synchronization protocols. Anim Reprod 2018; 15:102-107. [PMID: 34122639 PMCID: PMC8186872 DOI: 10.21451/1984-3143-ar2018-0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The aims of the present study were to analyze the effect of different hormonal protocols using
an implant containing Norgestomet, at the ovulation synchronization in buffaloes and to
verify the effect of the stress caused by manipulation of the herd during the experiment. Twenty-four
female Murrah breed buffaloes, lactating, multiparous, aged from three to eight years, with
a body condition score of 3.5 or higher (0 to 5) and with more than 45 days post partum, were used.
These females were randomly distributed into one of the three groups (group 1, group 2 and group
3) with eight subjects in each. On day 0 (day 0), all animals received an ear progesterone implant
with 3.0 mg of Norgestomet and an intramuscular (IM) injection with 2.0 mg of estradiol benzoate
(EB). The implants were removed after nine days (day 9) and one single dose of PGF2α
(0.15 mg d-cloprostenol, IM) was administered to all animals. On the same day, the group´1
and group 3 buffaloes were treated with 500 UI of eCG (IM). Two days later (day 11), 1000UI of
hCG (IM) were administered to the group 1 and group 2 buffaloes. After the implant had been removed,
an ultrasound evaluation was performed every 12 h, in order to access the ovarian follicular
dynamics, using an Aloka 500 equipment with a 5 MHz transrectal probe. Blood samples were also
taken on days 0, 9 and 11 to determine the plasmatic concentrations of cortisol and progesterone.
No difference was observed in the ovulation rate (group 1: 62.5%, group 2: 50%, group 3: 75%).
However, the size of the preovulatory follicles and the plasmatic concentration of cortisol
had (P < 0.05). G3 was the most efficient group in promoting the ovulation synchronization,
which suggests that this protocol can be used in Fixed Timed Artificial Insemination programs
(FTAI) among postpartum, lactating Murrah breed buffaloes’.
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Affiliation(s)
- Edmilson Daniel Stella
- Departamento de Reprodução Animal e Radiologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil
| | - Alcides de Amorim Ramos
- Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil
| | - Felipe Rydygier de Ruediger
- Departamento de Reprodução Animal e Radiologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil
| | - Ariane Dantas
- Departamento de Reprodução Animal e Radiologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil.,Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil
| | - Paulo Henrique Yamada
- Departamento de Reprodução Animal e Radiologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil
| | - Viviane Maria Codognoto
- Departamento de Reprodução Animal e Radiologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil
| | - Letícia Cristina Salgado
- Departamento de Reprodução Animal e Radiologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil
| | - Suzane Brochine
- Departamento de Reprodução Animal e Radiologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil
| | - Eunice Oba
- Departamento de Reprodução Animal e Radiologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual "Júlio de Mesquita Filho" (UNESP), Botucatu, SP, Brasil
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Qayyum A, Arshad U, Yousuf MR, Ahmad N. Effect of breeding method and season on pregnancy rate and embryonic and fetal losses in lactating Nili-Ravi buffaloes. Trop Anim Health Prod 2017; 50:555-560. [PMID: 29147936 DOI: 10.1007/s11250-017-1468-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 11/06/2017] [Indexed: 01/22/2023]
Abstract
The aim of this study was to determine the effect of breeding method and season on pregnancy rate and cumulative embryonic and fetal losses in Nili-Ravi buffalo. Estrus detection was performed twice a day by teaser buffalo bull for 1 hour each. A 2 × 2 factorial design was used to address the breeding method and season. Buffaloes (n = 130) exhibiting estrus were randomly assigned to be bred either in peak breeding season (PBS; n = 80) or low breeding season (LBS; n = 50). Within each season, buffaloes were divided to receive either natural service (NS; n = 65) or artificial insemination (AI; n = 65). NS buffaloes, in estrus, were allowed to remain with the bull until mating. AI was achieved, using frozen thawed semen of bull of known fertility. PBS comprised of September to December and LBS were from May to July. Serial ultrasonography was performed on days 30, 45, 60, and 90 after breeding (day 0) to monitor pregnancy rate and embryonic and fetal losses. The pregnancy rate on day 30 after breeding was higher in NS as compared to AI group (63 vs. 43%; P < 0.05) during PBS while it did not differ (48 vs. 32%; P > 0.05) in LBS. The cumulative embryonic and fetal losses between days 31 and 90 were significantly lower in PBS than LBS (33 vs. 60%; P < 0.05), ignoring breeding method. Pregnancy rates were better with NS in PBS, and cumulative embryonic fetal losses were higher in LBS in Nili-Ravi buffalo.
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Affiliation(s)
- Arslan Qayyum
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Usman Arshad
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Muhammad Rizwan Yousuf
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Nasim Ahmad
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan.
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Neglia G, Gasparrini B, Salzano A, Vecchio D, De Carlo E, Cimmino R, Balestrieri A, D'Occhio MJ, Campanile G. Relationship between the ovarian follicular response at the start of an Ovsynch–TAI program and pregnancy outcome in the Mediterranean river buffalo. Theriogenology 2016; 86:2328-2333. [DOI: 10.1016/j.theriogenology.2016.07.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/25/2016] [Accepted: 07/26/2016] [Indexed: 01/31/2023]
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Selvaraju S, Krishnan BB, Archana SS, Ravindra JP. IGF1 stabilizes sperm membrane proteins to reduce cryoinjury and maintain post-thaw sperm motility in buffalo (Bubalus bubalis) spermatozoa. Cryobiology 2016; 73:55-62. [DOI: 10.1016/j.cryobiol.2016.05.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/27/2016] [Accepted: 05/29/2016] [Indexed: 12/15/2022]
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