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An D, Chen X, Li Z, Dai L, Huang J, Xiao M, Liu H, Xu J, Ruan Y. Genetic variation in the BLM gene and its expression in the ovaries is closely related to kidding number in goats. Theriogenology 2024; 218:254-266. [PMID: 38367334 DOI: 10.1016/j.theriogenology.2024.02.013] [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: 11/05/2023] [Revised: 01/26/2024] [Accepted: 02/13/2024] [Indexed: 02/19/2024]
Abstract
Bloom (BLM) helicase plays an important role in DNA replication and the maintenance of genome integrity. BLM protein deficiency, which plays a vital role in the sperm-egg union and germ-cell development during reproduction, can lead to severe DNA damage in goats. However, the effect of BLM protein deficiency on goat litter size has not been reported. Herein, we studied the association between the genetic variation in the BLM gene and the number of kids per litter in Guizhou white goats. We explored differences in the expression of the BLM protein in the follicles of single and multi-kid nanny goats. We also analyzed the effects of dysregulated BLM gene expression on the proliferation and apoptosis of ovarian granulosa cells and the expression of genes related to follicle development in goats. Five single nucleotide polymorphism (SNP) loci, including the non-synonymous mutations g.38179 A > G, g.40626 G > C and g.89621 T > G; the intron synonymous mutation g.56961 G > A and the exon synonymous mutation g.65796 C > T were found in the BLM gene. All SNPs loci were in Hardy-Weinberg equilibrium, and correlation analysis showed that the g.65796 C > T and g.89621 T > G loci polymorphism was strongly associated with litter size in the first three litters (P < 0.05). The diplogenotype Hap 2/2 (AAGGAACCTT) showed no significant difference in litter size between different births, indicating that the diploid genotype is stable in different litter sizes. Bioinformatics analysis showed that three non-synonymous mutation loci (p.T488A, p.A662S, and p.S1373A) could affect BLM protein stability, and mutations in p.T488A and p.S1373A led to changes in amino acid polarity and associated interactions. qPCR results showed that the expression level of the BLM gene in the uterus and ovaries of TT genotype nanny goats was significantly higher than that of GG genotype nanny goats. Indirect immunofluorescence assay (IF) showed that the BLM protein was significantly overexpressed in both the primordial and growing follicles of nanny goats with multiple kids (P < 0.01). Disrupting BLM gene expression in the ovarian granulosa cells down-regulated the expression of the Cyp19A1 gene. It also significantly inhibited the proliferation of follicles and induces early apoptosis of the granulosa cells. These findings confirm that polymorphism in the BLM gene is closely related to the littering traits of Guizhou white goats, and it affects the reproductive performance of nanny goats by regulating the development of the oocytes and granulosa cells. This work provides new evidence on the regulatory effect of the BLM gene on the litter size of nanny goats.
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Affiliation(s)
- Dongwei An
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, PR China; Guizhou Provincial Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou University, Guiyang, 550025, PR China; College of Animal Science, Guizhou University, Guiyang, 550025, PR China
| | - Xiang Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, PR China; Guizhou Provincial Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou University, Guiyang, 550025, PR China; College of Animal Science, Guizhou University, Guiyang, 550025, PR China
| | - Ziyang Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, PR China; Guizhou Provincial Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou University, Guiyang, 550025, PR China; College of Animal Science, Guizhou University, Guiyang, 550025, PR China
| | - Lingang Dai
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, PR China; Guizhou Provincial Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou University, Guiyang, 550025, PR China; College of Animal Science, Guizhou University, Guiyang, 550025, PR China
| | - Jiajin Huang
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, PR China; Guizhou Provincial Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou University, Guiyang, 550025, PR China; College of Animal Science, Guizhou University, Guiyang, 550025, PR China
| | - Meimei Xiao
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, PR China; Guizhou Provincial Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou University, Guiyang, 550025, PR China; College of Animal Science, Guizhou University, Guiyang, 550025, PR China
| | - Huan Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, PR China; Guizhou Provincial Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou University, Guiyang, 550025, PR China; College of Animal Science, Guizhou University, Guiyang, 550025, PR China
| | - Jiali Xu
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, PR China; Guizhou Provincial Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou University, Guiyang, 550025, PR China; College of Animal Science, Guizhou University, Guiyang, 550025, PR China
| | - Yong Ruan
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, PR China; Guizhou Provincial Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou University, Guiyang, 550025, PR China; College of Animal Science, Guizhou University, Guiyang, 550025, PR China.
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Jia Y, Wang W, Jiang J, Zhang X, Li H, Gong S, Li Z, Liu H, Shang C, Wang A, Jin Y, Lin P. LncRNA STAT3-AS regulates endometrial receptivity via the STAT3 signaling pathway. Theriogenology 2024; 216:118-126. [PMID: 38171198 DOI: 10.1016/j.theriogenology.2023.12.032] [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: 10/10/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/05/2024]
Abstract
Endometrial receptivity is critical for the successful establishment of pregnancy in ruminants. Interferon tau (IFNT) plays a key role in promoting embryo attachment by activating the Janus kinase/signal transducer and activator of transcription pathway, which induces the expression of a series of interferon-stimulated genes (ISGs). In our previous study, sequencing analysis of goat endometrial epithelial cells (gEECs) treated with 20 ng/mL IFNT revealed a differentially expressed long non-coding RNA located on the STAT3 antisense chain, which we designated STAT3-AS. The aim of this study was to investigate the role and mechanism of STAT3-AS in establishing endometrial receptivity in goats. The results showed that STAT3-AS was expressed in both the nucleus and cytoplasm of gEECs, and its expression increased significantly in the uterus on day 15 of pregnancy. STAT3-AS expression was upregulated in gEECs treated with IFNT alone or in combination with progesterone and estradiol. Knockdown of STAT3-AS using specific short interfering RNA significantly inhibited the expression of classical ISGs such as interferon-stimulated gene 15 and 2',5'-oligodenylate synthetase 2, as well as uterine endometrial receptivity-related genes including homeobox gene A11, integrin beta 3, and vascular endothelial growth factor. Moreover, gEEC proliferation and the STAT3 pathway were suppressed in the absence of STAT3-AS. However, pretreatment with the STAT3 activator RO8191 restored the effect of silencing STAT3-AS on endometrial receptivity. Overall, these results suggest that STAT3-AS is an important regulator of endometrial receptivity in goats and that it regulates endometrial receptivity through the STAT3 pathway.
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Affiliation(s)
- Yanni Jia
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Wei Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jiaqi Jiang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Xinyan Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Haijing Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Suhua Gong
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Zuhui Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Haokun Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Chunmei Shang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Aihua Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Yaping Jin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China.
| | - Pengfei Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China.
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Sun S, Lv M, Niu H, Luo J. Influence of repeated estrus synchronization treatment on hormone secretion, growth, and development of dairy goats. Front Vet Sci 2024; 10:1333633. [PMID: 38269361 PMCID: PMC10805971 DOI: 10.3389/fvets.2023.1333633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/26/2023] [Indexed: 01/26/2024] Open
Abstract
In large-scale intensive farms, dairy goats often undergo frequent estrus synchronization (ES) treatment, which may result in a decline in reproductive performance; however, the underlying mechanism remains unclear. The present study aimed to investigate the effect of pregnant mare serum gonadotropin (PMSG) and progesterone (P4)-mediated ES treatment on fertility in dairy goats, while also identifying key metabolic and endocrine mechanisms that influence reproductive performance in does subjected to repeated ES treatment. Forty-eight Saanen does were randomly assigned to two groups (24 goats each) that received ES treatments either thrice fortnightly (3-PMSG) or once (1-PMSG) simultaneously with the third ES treatment of the 3-PMSG group during the breeding season. ES treatment was performed via the intravaginal insertion of a controlled internal drug release (CIDR) device impregnated with 300 mg P4, followed by 300 IU PMSG injections 48 h before CIDR withdrawal. Blood was collected to detect the level of hormones and blood biochemical indices. Additionally, estrus rate, fecundity rate, body weight, size, and lactation performance were measured. The results showed that repeated ES treatment markedly decreased the estrus rate and fecundity rate of goats. Among the does in all groups, there was no substantial difference in follicle stimulating hormone, luteinising hormone, gonadotropin-releasing hormone, melatonin, growth hormone, PMSG, total cholesterol, total protein, and glucose levels, as well as the body weight, body size, and lactation performance. Repeated ES treatment elevated estrogen (E2) levels 36, 48, and 72 h post-CIDR removal; increased P4 upon CIDR insertion; and raised PMSG antibody levels 24, 48, and 72 h post-CIDR removal. The results suggest that elevated anti-PMSG levels are the primary reason for the decline in ES efficiency, and that high E2 and P4 levels at some time points also impair reproductive performance. These findings provide novel insights into the metabolic effects of repeated PMSG stimulation in goats, guiding future reproductive hormone use in breeding practices.
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Affiliation(s)
- Shuang Sun
- College of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang, Henan, China
| | - Ming Lv
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Huimin Niu
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Jun Luo
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
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Quelhas J, Pinto-Pinho P, Lopes G, Rocha A, Pinto-Leite R, Fardilha M, Colaço B. Sustainable animal production: exploring the benefits of sperm sexing technologies in addressing critical industry challenges. Front Vet Sci 2023; 10. [PMID: 38076548 PMCID: PMC10704908 DOI: 10.3389/fvets.2023.1181659] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024] Open
Abstract
The sex of the animals is of paramount importance in many animal production systems. This is particularly evident in the production of milk or in breeding programs focused on the production of female animals. In some cases, slaughter or euthanasia of animals of the unwanted sex becomes the only solution, highlighting ethical and economic concerns. As global demand for food continues to rise, the importance of addressing these issues becomes more evident. Reproductive technologies, such as sperm sexing techniques, may hold the key to addressing both animal welfare and the sustainability of animal production. The use of semen enriched with sperm capable of producing offspring of the desired sex can serve as a valuable tool for producers to exert greater control over production outcomes, not only helping to mitigate welfare issues related to the unnecessary premature death of unwanted offspring but also providing a possible ally in the face of stricter animal welfare guidelines. In addition, sexed semen can also contribute to financial gains and reduce greenhouse gas emissions and food waste associated with the less profitable part of the herd. This paper explores the positive impacts that sperm sexing can have on animal welfare, economy, and environment. It also discusses currently available options and strategies for more successful implementation of sexed semen. Partnerships between companies and scientists will be essential to find innovative ways to adapt current production systems and develop sperm sexing technologies that apply to most livestock industries.
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Zakaria AM, Al-Daek T, Elmeligy E, Mohamed RH, El-Naga EMA, Mohammed HH, Abdulkarim A, Ali MA, Khesruf KA, Khalphallah A. Effect of different post-partum therapeutic protocols with intrauterine oxytetracycline, oxytocin and/or GnRH injection in post-kidding goats on oxytetracyclines residues in goat milk and postpartum ovarian resumption with referring to clinical and haematological pictures. BMC Vet Res 2023; 19:139. [PMID: 37658349 PMCID: PMC10472706 DOI: 10.1186/s12917-023-03706-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 08/24/2023] [Indexed: 09/03/2023] Open
Abstract
BACKGROUND The post-parturient period in goat had marked changes in an animal's endocrine and metabolic status as well as by reduction in feed intake when the nutrient demand for impending lactogenesis was increasing. The current study aimed to monitor the residues of oxytetracycline in Baladi goat milk and their hazards on public health as well as the time required until complete disappearance of this medicament from milk through following up periods included 0, 12, 24, 36, 48, 60, 72, 84, 96 and 120 h in post-kidding goat following intrauterine application of oxytetracycline. The study also compared between the efficacy of oxytetracycline only, oxytetracycline with oxytocin, or oxytetracycline with GnRH, through monitoring the clinical findings and haematological pictures at days 0, 5 and 7 post-partum as well as studying the changes in numbers and size of follicles at days 15, 30 and 45 postpartum after different treatments strategies in different groups i.e. Control healthy goat (Contgr), Oxytetracycline treated goat (Oxytetgr), Oxytetracycline-oxytocin treated goat (Oxytet-Oxytogr) and Oxytetracycline-GnRH treated goat (Oxytet-GnRHgr). The study was carried out on clinically healthy Baladi goats (n = 40) that gave birth recently. They were divided into 4 equal groups (n = 10 goats for each); Contgr which received no medication after birth, Oxytetgr which administrated oxytetracycline tablets intrauterine at day of birth, Oxytet-Oxytogr which treated by oxytetracycline tablets intrauterine at day of birth followed by oxytocin injection at 3rd day after birth, and Oxytet-GnRHgr which treated by oxytetracycline tablets intrauterine at day of birth followed by GNRH injection at 3rd day after birth. RESULTS AND CONCLUSIONS The study concluded the highest oxytetracyclines residues in goats' milk were reported after 36 h following intrauterine oxytetracycline application where complete disappearance of oxytetracyclines residues in goats' milk required 120 h elapsed after intrauterine oxytetracycline application in which the goats milk became safe for human consumption. The study also reported powerful influence of the applied variable therapeutic regimens on post-partum ovarian resumption through clear significant variations in numbers and sizes of follicles either between different goats' groups within the same day, or between days 15, 30 and 45 post-partum within each independent goat group.
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Affiliation(s)
- Asem M Zakaria
- Department of Food Hygiene, Faculty of Veterinary Medicine, Aswan University, Aswan, 81528, Egypt
| | - Taher Al-Daek
- Faculty of Veterinary Medicine, Omar Al- Mukhtar University, Al-bayda, 919, Al Bayda, Libya
| | - Enas Elmeligy
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
| | - Ragab H Mohamed
- Department of Theriogenology, Obstetrics, and Artificial Insemination, Faculty of Veterinary Medicine, Aswan University, Aswan, 81528, Egypt
| | - Eman M Abu El-Naga
- Department of Theriogenology, Obstetrics, and Artificial Insemination, Faculty of Veterinary Medicine, Aswan University, Aswan, 81528, Egypt
| | - Haitham H Mohammed
- Department of Rangeland, Wildlife and Fisheries Management, Texas A&M University, College Station, TX, 77843, USA
| | - Abdulrahman Abdulkarim
- Faculty of Veterinary Medicine, Omar Al- Mukhtar University, Al-bayda, 919, Al Bayda, Libya
| | - Mohammed Abdelhadi Ali
- Department of Forensic medicine and Toxicology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
| | - Khaled A Khesruf
- Department of Animal diseases, Faculty of Veterinary Medicine, Aleppo University, Aleppo, Syria
| | - Arafat Khalphallah
- Division of Internal Medicine, Department of Animal Medicine, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt.
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Ruvuga PR, Maleko DD. Dairy goats' management and performance under smallholder farming systems in Eastern Africa: the systematic review and meta-analysis. Trop Anim Health Prod 2023; 55:255. [PMID: 37392245 DOI: 10.1007/s11250-023-03661-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 06/15/2023] [Indexed: 07/03/2023]
Abstract
The systematic review and meta-analysis study was conducted to describe dairy goat management practices among smallholder farmers in Kenya and Tanzania. The study also evaluated the effects of breed and upgrade level (50%, 75% and > 75%) on growth and lactation performances. Google Scholar was used to search for dairy goats' studies followed by an eligibility check. Eligible studies were assessed for risk of bias using RoB 2.0 (Cochrane risk-of-bias in randomised trial) and ROBINS-I (Risk of Bias Assessment in Non-Randomised Studies of Interventions). Smallholder farmers were mainly stall-feeding natural pasture and crop residues to goats with supplementation limited by the high costs of concentrate feeds. Forage cultivation and conservation were limited by the scarcity of land and improved forage planting materials, low technical know-how and high labour demand. Similarly, farmers had limited access to formal market, veterinary and extension services. Prevalence of infectious diseases, antibiotic resistance and pre-weaning kid mortality were high. Nevertheless, there were breed effects (p < 0.05) on pre-weaning growth and weaning weight but not lactation parameters. However, Saanen goats had relatively higher lactation length (252 days) and yield (637 l) than other goat breeds. Daily milk and lactation yields, pre-weaning growth and growth rate (post-weaning) varied significantly among upgrade levels (p < 0.05) and were highest in > 75% level. It was concluded that Saanen goats and > 75% were the best breed and upgrade level for goat milk production in smallholder farms due to high lactation performance. Improving the different managerial aspects of smallholder dairy goat farming is of paramount importance if the dairy goats' performance, farm income, food safety and security are to be improved in Eastern Africa.
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Affiliation(s)
| | - David Dawson Maleko
- Department of Animal, Aquaculture and Range Sciences, Sokoine University of Agriculture, Morogoro, Tanzania.
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Khan S, Jamal MA, Khan IM, Ullah I, Jabbar A, Khan NM, Liu Y. Factors affecting superovulation induction in goats ( Capra hericus): An analysis of various approaches. Front Vet Sci 2023; 10:1152103. [PMID: 37035816 PMCID: PMC10079885 DOI: 10.3389/fvets.2023.1152103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 02/24/2023] [Indexed: 04/11/2023] Open
Abstract
Goats are generally called a "poor man's cow" because they not only provide meat and milk but also other assistance to their owners, including skins for leather production and their waste, which can be used as compost for fertilizer. Multiple ovulation and embryo transfer (MOET) is an important process in embryo biotechnology, as it increases the contribution of superior female goats to breeding operations. The field of assisted reproductive biotechnologies has seen notable progress. However, unlike in cattle, the standard use of superovulation and other reproductive biotechnologies has not been widely implemented for goats. Multiple intrinsic and extrinsic factors can alter the superovulatory response, significantly restricting the practicability of MOET technology. The use of techniques to induce superovulation is a crucial step in embryo transfer (ET), as it accelerates the propagation of animals with superior genetics for desirable traits. Furthermore, the conventional superovulation techniques based on numerous injections are not appropriate for animals and are labor-intensive as well as expensive. Different approaches and alternatives have been applied to obtain the maximum ovarian response, including immunization against inhibin and the day-0 protocol for the synchronization of the first follicular wave. While there are several studies available in the literature on superovulation in cattle, research on simplified superovulation in goats is limited; only a few studies have been conducted on this topic. This review describes the various treatments with gonadotropin that are used for inducing superovulation in various dairy goat breeds worldwide. The outcomes of these treatments, in terms of ovulation rate and recovery of transferrable embryos, are also discussed. Furthermore, this review also covers the recovery of oocytes through repeated superovulation from the same female goat that is used for somatic cell nuclear transfer (SCNT).
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Affiliation(s)
- Samiullah Khan
- Anhui Province Key Laboratory of Embryo Development and Reproduction Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
- The Scientific Observing and Experimental Station of Crop Pest in Guiyang, Ministry of Agriculture, Institute of Entomology, Guizhou University, Guiyang, China
| | | | - Ibrar Muhammad Khan
- Anhui Province Key Laboratory of Embryo Development and Reproduction Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Irfan Ullah
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Abdul Jabbar
- Faculty of Veterinary and Animal Sciences, University of Poonch, Rawalakot, Pakistan
| | - Nazir Muhammad Khan
- Department of Zoology, University of Science and Technology, Bannu, Pakistan
| | - Yong Liu
- Anhui Province Key Laboratory of Embryo Development and Reproduction Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
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Sun Z, Hong Q, Liu Y, He X, Di R, Wang X, Ren C, Zhang Z, Chu M. Characterization of circular RNA profiles of oviduct reveal the potential mechanism in prolificacy trait of goat in the estrus cycle. Front Physiol 2022; 13:990691. [PMID: 36187784 PMCID: PMC9521424 DOI: 10.3389/fphys.2022.990691] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 08/24/2022] [Indexed: 12/29/2022] Open
Abstract
The mammalian oviduct is functionally highly diverse during the estrus cycle. It provides a suitable milieu for oocyte maturation, sperm capacitation, fertilization, early embryo development and transportation. While there have been many studies of molecular mechanisms on the kidding number of goats, a systematic analysis by which the underlying circular RNAs (circRNAs) changes in the oviduct related to prolificacy traits is lacking. Herein, we present a comprehensive circRNA atlas of the oviduct among high- and low-fecundity goats in the follicular phase (FH vs. FL), luteal phase (LH vs. LL), and estrus cycle (FH vs. LH; FL vs. LL) to unravel their potential regulatory mechanisms in improving kidding number. We generated RNA sequencing data, and identified 4,078 circRNAs from twenty sampled Yunshang black goats. Many of these circRNAs are exon-derived and differentially expressed between each comparison group. Subsequently, eight differentially expressed (DE) circRNAs were validated by RT‒qPCR, which was consistent with the RNA-seq data. GO and KEGG enrichment analyses suggested that numerous host genes of DE circRNAs were involved in the hormone secretion, gamete production, fertilization, and embryo development processes. The competing endogenous RNA (ceRNA) interaction network analysis revealed that 2,673 circRNA–miRNA–mRNA axes (including 15 DE circRNAs, 14 miRNAs, and 1,699 mRNAs) were formed, and several target genes derived from the ceRNA network were associated with oviduct functions and reproduction, including SMAD1, BMPR1B, IGF1, REV1, and BMP2K. Furthermore, miR-15a-5p, miR-181b-5p, miR-23b-5p, miR-204-3p, and miR-145-5p might play important roles in reproduction. Finally, a novel circRNA, circIQCG, was identified as potentially involved in embryo development. Overall, our study provides a resource of circRNAs to understand the oviductal function and its connection to prolificacy trait of goats in the differentiation estrus cycle.
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Affiliation(s)
- Zhipeng Sun
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Qionghua Hong
- Yunnan Animal Science and Veterinary Institute, Kunming, China
| | - Yufang Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoyun He
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ran Di
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiangyu Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chunhuan Ren
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Zijun Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- *Correspondence: Zijun Zhang, ; Mingxing Chu,
| | - Mingxing Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Zijun Zhang, ; Mingxing Chu,
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Evidence that Murciano-Granadina does with longer anogenital distance are more fertile and prolific and produce heavier and male-biased litters. Anim Reprod Sci 2022; 244:107047. [DOI: 10.1016/j.anireprosci.2022.107047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 06/13/2022] [Accepted: 07/24/2022] [Indexed: 11/17/2022]
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10
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Liu Y, Zhou Z, He X, Jiang Y, Ouyang Y, Hong Q, Chu M. Differentially Expressed Circular RNA Profile Signatures Identified in Prolificacy Trait of Yunshang Black Goat Ovary at Estrus Cycle. Front Physiol 2022; 13:820459. [PMID: 35492611 PMCID: PMC9049588 DOI: 10.3389/fphys.2022.820459] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/10/2022] [Indexed: 01/10/2023] Open
Abstract
CircRNAs acting as miRNA sponges play important roles in the growth process of animal individuals. The prolificacy trait of goats is involved in many pathways, however, the variation of circRNA expression profiles in the different phases of the estrus cycle at high and low fecundity groups is still unknown. Here, we analyzed the circRNA profiles of ovarian tissues among high and low fecundity groups in the follicular phase (HF vs LF), high and low fecundity groups in the luteal phase (HL vs LL), and high and low fecundity in the whole estrus cycle (HF vs HL and LF vs LL) using RNA-seq. A total of 283 (114 upregulated and 169 downregulated), 559 (299 upregulated and 260 downregulated), 449 (254 upregulated and 195 downregulated), and 314 (210 upregulated and 104 downregulated) differentially expressed (DE) circRNAs were screened in HF vs LF, HF vs HL, HL vs LL, and LF vs LL groups, respectively. Enrichment analysis suggested that the targeting of DE circRNAs was mainly enriched in oocyte meiosis, the GnRH signaling pathway, and estrogen signaling pathway. After integrating our previous study of miRNA-seq, there were 56 miRNAs that could target to 192 DE circRNAs, including the miR-133 family (including miR-133a-3p and miR-133b), miR-129-3p, and miR-21, which also had important influence on the prolificacy trait of goats. Then, 18 circRNAs with coding potential were obtained by four software predictions, and 9 circRNAs were validated by RT-qPCR. Together, circRNAs play a key role in the prolificacy trait and the transformation of the follicular phase to the luteal phase in the estrus cycle of goats.
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Affiliation(s)
- Yufang Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China.,College of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, China
| | - Zuyang Zhou
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China.,College of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, China
| | - Xiaoyun He
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yanting Jiang
- Yunnan Animal Science and Veterinary Institute, Kunming, China
| | - Yina Ouyang
- Yunnan Animal Science and Veterinary Institute, Kunming, China
| | - Qionghua Hong
- Yunnan Animal Science and Veterinary Institute, Kunming, China
| | - Mingxing Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
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11
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Gutierrez VA, Sánchez-Dávila F, Ledezma-Torres RA, Peterson S, Brenner EG, Luna-Palomera C, Vazquez-Armijo JF, López-Villalobos N, Grizelj J. The use of oxytocin to cause cervical dilation for transcervical insemination in nulliparous goats: Improving pregnancy and kidding rates. Reprod Domest Anim 2022; 57:886-892. [PMID: 35467775 DOI: 10.1111/rda.14135] [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: 02/07/2022] [Revised: 04/15/2022] [Accepted: 04/24/2022] [Indexed: 11/29/2022]
Abstract
To evaluate the effect of oxytocin as a cervical dilator, a study was carried out on nulliparous goats inseminated transcervically at the beginning of the breeding season. One hundred sixteen nulliparous goats with a mean live weight of 33.4 ± 0.68 kg and an age of 13.7 ± 0.37 months were used. The goats were exposed to active bucks of proven fertility for a period of 14 d in order to induce oestrus. One week later, the Ovsynch protocol was applied, which consisted of the application of 20 mg of gonadorelin (Day Zero), 0.075 mg of cloprostenol (Day 7) and of a second dose of 20 mg of gonadorelin applied on Day 9. Artificial insemination (AI) was performed 16 hr later. Three treatments were evaluated: T1 = 50 IU saline, T2 = 25 IU oxytocin; T3 = 50 IU of oxytocin, intravenously applied 10-15 min before AI. The time required to inseminate each treated goat from groups T2 and T3 was 49.56 and 56.25 s, respectively, versus 85.78 s needed for the goats from group T1 (p < .0001). In the T1 group of goats, the insemination catheter was inserted 2.1 cm into the cervical canal and in goats from groups T2 and T3 it reached 3.41 and 3.77 cm into the cervical canal, respectively (p = .02). Pregnancy rates and prolificacy (kids/doe) were higher (p = .02) for groups T2 (82.93%; 1.16) and T3 (76.92%; 1.21) respectively than for control goats (61.11%; 0.69). In conclusion, the intravenous administration of oxytocin led to greater dilation and depth of cervical penetration, obtaining higher pregnancy rates and prolificacy.
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Affiliation(s)
- Valeria Alvarado Gutierrez
- Facultad de Medicina Veterinaria y Zootecnia, Posgrado Conjunto FA-FMVZ, Universidad Autónoma de Nuevo León, General Escobedo, México
| | - Fernando Sánchez-Dávila
- Facultad de Medicina Veterinaria y Zootecnia, Posgrado Conjunto FA-FMVZ, Universidad Autónoma de Nuevo León, General Escobedo, México.,Laboratorio de Reproducción Animal, Unidad Académica Marín, Marín, México
| | - Rogelio Alejandro Ledezma-Torres
- Facultad de Medicina Veterinaria y Zootecnia, Posgrado Conjunto FA-FMVZ, Universidad Autónoma de Nuevo León, General Escobedo, México
| | - Sam Peterson
- School of Agriculture and Environment, Massey University, Palmerston North, New Zealand
| | - Estela Garza Brenner
- Facultad de Medicina Veterinaria y Zootecnia, Posgrado Conjunto FA-FMVZ, Universidad Autónoma de Nuevo León, General Escobedo, México
| | - Carlos Luna-Palomera
- División de Ciencias Agropecuarias 86280, Universidad Autónoma de Juárez de Tabasco, Villahermosa, México
| | | | | | - Juraj Grizelj
- Facultad de Medicina Veterinaria, Universidad de Zagreb, Zagreb, Croatia
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12
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Khotijah L, Arofah N, Erlangga K, Wijaya SH, Diapari D, Komalasari K, Astuti DA. Reproductive Performance of Ewes, Fed Flushing Diet at Different Management Feeding Program. Pak J Biol Sci 2022; 25:827-834. [PMID: 36098085 DOI: 10.3923/pjbs.2022.827.834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
<b>Background and Objective:</b> There is very rare information regarding data of reproduction performance of small ruminant with different management flushing program in Asian countries. The aim of this study was to evaluate the implementation of flushing diet program containing lemuru fish oil with time management difference, by evaluating the reproductive performance of local Garut ewes. <b>Materials and Methods:</b> Twenty of garut ewes (average body weight 30.06±6.20 kg) were used in this experiment using Completely Randomized Block Design (CRBD), in four treatments with five animals of each treatment. The treatments were without flushing (F0 as control), flushing at the beginning of mating (F1 = 2 weeks pre-mating until 2 weeks just after-mating), two times flushing (F2 = F1 plus 4 weeks flushing during mid gestation) and three times flushing (F3 = F2 plus 2 weeks flushing at the end of gestation and 2 weeks after parturition). The ratio of flushing or basal concentrate to forage was 70:30. Basal concentrate was given during untreated. Nutrients consumption, body condition score (BCS), average daily gain (ADG), feed efficiency ratio (FER) and reproduction parameters were evaluated. The data of sex ratio and birth type were expressed descriptively. <b>Results:</b> The results showed that the treatment had significant effect (p<0.05) on crude fat consumption, total digestible nutrients (TDN) and changes of BCS values, but had no effect on other nutrients consumptions. All treatments did not affect to total birth weight, the number of embryo, litter size, gestation period and sex ratio. The percentage of ewes pregnancy with the flushing treatment was 25% higher than the control. The flushing treatments were significantly effect on partus weight of ewes (p<0.05). <b>Conclusion:</b> It was concluded that three times flushing program at early, middle and late of gestation could improve the nutritional status and reproductive performance of ewes, such as fat intake, partus weight, improved percentage of pregnancy and type of birth, but did not affect to total birth weight, litter size, pregnant period and sex ratio.
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13
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Meijer E, Goerlich VC, van den Brom R, Giersberg MF, Arndt SS, Rodenburg TB. Perspectives for Buck Kids in Dairy Goat Farming. Front Vet Sci 2021; 8:662102. [PMID: 34722689 PMCID: PMC8554305 DOI: 10.3389/fvets.2021.662102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 09/15/2021] [Indexed: 11/19/2022] Open
Abstract
To start milk production, dairy goats need to give birth at least once. While most female kids are reared to become the next generation of dairy goats, only a small proportion of male kids (buck kids) are reared with reproduction aims. The market for buck kid meat, especially within Northern European countries, is currently relatively small compared to the number of bucks born. Therefore, the purposes for buck kids are limited and a substantial proportion of buck kid meat is used for pet food. Due to the limited economic value of buck kids, farmers are faced with a dilemma. Although raising bucks costs more money than it yields, the birth of kids is a prerequisite for production of milk and should be seen as an investment for business-wise healthy dairy goat farming. In that perspective, dairy goat farmers have an ethical responsibility toward buck kids, as well. In this paper, we compare various scenarios of dealing with the issue of surplus male animals. We provide recommendations for the rearing of buck kids based on the sector‘s experience and current practice in the Netherlands. Reducing the number of surplus (male) offspring, e.g., by an optimized prolonged lactation management and/or by artificial insemination with sex-sorted semen, could alleviate the issue of low value buck kids. Killing surplus animals before or directly after birth, on the other hand, is met with increasing societal scrutiny. Initiatives to propagate a market for buck kid meat for human consumption are important to enable a suitable and sustainable production system. To maintain the health and welfare of goat kids, amongst other factors, sufficient and good quality colostrum, milk, and an appropriate diet as they grow older, needs to be provided. One option to assure the safeguarding of health and welfare of all goat kids are quality assurance schemes for milk production. These schemes make dairy farmers accountable for the health and welfare of all kids in the rearing period, including the provision of colostrum and adequate care for newborn buck kids. We conclude that the combination of reducing the number of surplus kids, increasing the demand for goat products, and quality assurance schemes that may help to safeguard the welfare of buck kids.
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Affiliation(s)
- Ellen Meijer
- Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Vivian C Goerlich
- Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - René van den Brom
- Royal GD, Department of Small Ruminant Health, Deventer, Netherlands
| | - Mona F Giersberg
- Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Saskia S Arndt
- Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - T Bas Rodenburg
- Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
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14
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Yücel UM, Koşal V, Taşpınar F, Uslu BA. The effects of levamisole and albendazole on spermatological parameters, testosterone levels, and sperm DNA damage in Saanen bucks. Trop Anim Health Prod 2021; 53:462. [PMID: 34545434 DOI: 10.1007/s11250-021-02895-w] [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: 05/04/2021] [Accepted: 09/10/2021] [Indexed: 11/25/2022]
Abstract
This study aimed to investigate the effect of levamisole and albendazole on spermatological parameters, testosterone levels, and sperm DNA damage in Saanen bucks. For this purpose, twenty-four Saanen bucks were divided into three groups as control, levamisole, and albendazole administration group. The control group received only water (20 ml, oral), the levamisole group received 7.5 mg/kg of levamisole (2 oral tablets once daily for 2 days) + water (20 ml, oral), and the albendazole group received 7.5 mg/kg of albendazole (1 oral tablet) + water (20 ml, oral). Semen and blood samples were collected from all animals, both before drug application (day 0) and within a 2-day interval after drug application between day 1 (day of the treatment) and day 11. Spermatological parameters were evaluated immediately after collection. Testosterone levels were also measured from the blood samples with ELISA. Sperm DNA damage was determined with comet assay. The present research showed that especially albendazole administration decreased spermatological parameters and levamisole administration decreased testosterone levels. Significant sperm DNA damage was seen after both albendazole and levamisole administration. As a result, albendazole and levamisole administration should be used carefully on Saanen bucks, especially during the breeding season.
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Affiliation(s)
- Ufuk Mercan Yücel
- Departments of Pharmacology and Toxicology, Veterinary Faculty, University of Van Yuzuncu Yil, Van, Turkey
| | - Volkan Koşal
- Departments of Reproduction and Artificial Insemination, Veterinary Faculty, University of Van Yuzuncu Yil, Van, Turkey
| | - Filiz Taşpınar
- Department of Physiology, Faculty of Medicine, Aksaray University, Aksaray, Turkey
| | - Barış Atalay Uslu
- Departments of Reproduction and Artificial Insemination, Veterinary Faculty, University of Mehmet Akif Ersoy, 15100, Burdur, Turkey. .,Departments of Reproduction and Artificial Insemination, Veterinary Faculty, University of Sivas Cumhuriyet, Sivas, Turkey.
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15
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Ren F, Xi H, Ren Y, Li Y, Wen F, Xian M, Zhao M, Zhu D, Wang L, Lei A, Hu J. TLR7/8 signalling affects X-sperm motility via the GSK3 α/β-hexokinase pathway for the efficient production of sexed dairy goat embryos. J Anim Sci Biotechnol 2021; 12:89. [PMID: 34340711 PMCID: PMC8330071 DOI: 10.1186/s40104-021-00613-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 06/10/2021] [Indexed: 02/07/2023] Open
Abstract
Background Goat milk is very similar to human milk in terms of its abundant nutrients and ease of digestion. To derive greater economic benefit, farmers require more female offspring (does); however, the buck-to-doe offspring sex ratio is approximately 50%. At present, artificial insemination after the separation of X/Y sperm using flow cytometry is the primary means of controlling the sex of livestock offspring. However, flow cytometry has not been successfully utilised for the separation of X/Y sperm aimed at sexing control in dairy goats. Results In this study, a novel, simple goat sperm sexing technology that activates the toll-like receptor 7/8 (TLR7/8), thereby inhibiting X-sperm motility, was investigated. Our results showed that the TLR7/8 coding goat X-chromosome was expressed in approximately 50% of round spermatids in the testis and sperm, as measured from cross-sections of the epididymis and ejaculate, respectively. Importantly, TLR7/8 was located at the tail of the X-sperm. Upon TLR7/8 activation, phosphorylated forms of glycogen synthase kinase α/β (GSK3 α/β) and nuclear factor kappa-B (NF-κB) were detected in the X-sperm, causing reduced mitochondrial activity, ATP levels, and sperm motility. High-motility Y-sperm segregated to the upper layer and the low-motility X-sperm, to the lower layer. Following in vitro fertilisation using the TLR7/8-activated sperm from the lower layer, 80.52 ± 6.75% of the embryos were XX females. The TLR7/8-activated sperm were subsequently used for in vivo embryo production via the superovulatory response; nine embryos were collected from the uterus of two does that conceived. Eight of these were XX embryos, and one was an XY embryo. Conclusions Our study reveals a novel TLR7/8 signalling mechanism that affects X-sperm motility via the GSK3 α/β-hexokinase pathway; this technique could be used to facilitate the efficient production of sexed dairy goat embryos. Supplementary Information The online version contains supplementary material available at 10.1186/s40104-021-00613-y.
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Affiliation(s)
- Fa Ren
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
| | - Huaming Xi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
| | - Yijie Ren
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
| | - Yu Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
| | - Fei Wen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
| | - Ming Xian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
| | - Mengjie Zhao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
| | - Dawei Zhu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
| | - Liqiang Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
| | - Anmin Lei
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jianhong Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China.
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16
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Gore D, Okeno T, Muasya T, Mburu J. Improved response to selection in dairy goat breeding programme through reproductive technology and genomic selection in the tropics. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2021.106397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Assessment of estrous synchronization protocols and pregnancy specific protein B concentration for the prediction of kidding rate in Lezhi black goats. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2020.106299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Kim KW, Lee J, Kim KJ, Lee ED, Kim SW, Lee SS, Lee SH. Estrus synchronization and artificial insemination in Korean black goat ( Capra hircus coreanae) using frozen-thawed semen. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2021; 63:36-45. [PMID: 33987582 PMCID: PMC7882844 DOI: 10.5187/jast.2021.e10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/26/2020] [Accepted: 11/02/2020] [Indexed: 11/29/2022]
Abstract
Presently, there is an increased demand for livestock products all over the world
which has led to more devotion on improving livestock population. Although goats
have been bred for a long time in Korea, but there is not much research
conducted on traditional Korean black goat (Capra hircus
coreanae) compared to other livestock populations. Mutton
consumption has been dramatically changing from medicinal use to edible meat and
this trend directs the black goat populations declining and also mutton import
quantities are increasing consistently. The present study introduced a new
estrus synchronizing technique with subsequent artificial insemination (AI) for
Korean black goats to enable crossbreeding with non-native breeds for the small
or subsistent farmers. Our data highlighted that, the percentage of motile sperm
from the electro-ejaculated samples declined significantly after freezing and
melting. In addition, the sperm motility significantly declined with regard to
sperm incubation period (0, 5, 60, and 120 min at 37°C) and was
negatively correlated (64.2 ± 7.9%, 63.3 ± 5.8%, 49.9 ±
6.3%, and 35.9 ± 7.6%, respectively) in frozen-thawed sperm samples.
Moreover, the E2 levels were unchanged even 24 h after controlled internal drug
releas (CIDR) withdrawal. But, 48 h and 72 h after CIDR removal, E2 levels
increased significantly. These data helps us to consider the two time points for
AI; CIDR removal after 24 h, at which E2 decreases, and after 48 h, as the time
at which progesterone increases. Additionally, the AI after 48 h of CIDR removal
group exhibited significantly higher pregnancy and parturition rates (42.9%)
compared to AI after 24 h after CIDR removal 28.6% group. In conclusion, these
studies will propose an optimal estrus synchronisation process with subsequent
timing of AI and also will promote the Korean black goat breeding industry.
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Affiliation(s)
- Kwan-Woo Kim
- Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Hamyang 50000, Korea
| | - Jinwook Lee
- Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Hamyang 50000, Korea
| | - Keun Jung Kim
- Institute of Chungnam Livestock Research, Cheongyang 33350, Korea
| | - Eun-Do Lee
- Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Hamyang 50000, Korea
| | - Sung Woo Kim
- Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Hamyang 50000, Korea
| | - Sung-Soo Lee
- Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Hamyang 50000, Korea
| | - Sang-Hoon Lee
- Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Hamyang 50000, Korea
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19
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A New Concept in Minimally Invasive Embryo Transfer. ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2020-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Considerable variation in embryo transfer (ET) catheter types, diverging opinions on their quality and functionality, complications following the insertion of catheters, low efficiency of the application of ET methods in humans, and their widely varying efficiency in animals demonstrate the need to improve ET methods and to look for new types of catheters. Such an opportunity is offered by the introduction of catheters made of new-generation biomaterials. This study was aimed to introduce a new generation of biomaterials into reproductive biotechnology. New-generation materials were compared with materials that have been used for many years, and the functionality of newly produced catheters was compared in vivo. Five types of biomaterials were tested: polycaprolactone (PCL), dibutyryl chitin (DBC), polypropylene (PP), polyethylene (PE) and polylactide (PLA). The study was carried out in two stages. Firstly, the basic utility parameters such as geometric stability, surface structure and catheter resistance were evaluated. Subsequently, the biocompatibility of selected biomaterials in embryo cultures was examined, and the development potential of the obtained blastocysts was evaluated. In the second stage, in vivo with live animals, the biomaterials were tested for biocompatibility and the obtained catheters were examined for their ET functionality. Efficiency with the use of the newly produced catheters was determined, the quality of the blastocysts obtained after embryo culture in the uterus was assessed, and oviducts were subjected to histopathological examination after embryo transfer. Of the tested biomaterials, only polyethylene (PE) showed adequate biological and material properties and proved suitable for production of ET catheters.
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20
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Influence of Season and Liquid Storage at 16 °C on Beni Arouss Bucks' Semen Quality. Animals (Basel) 2020; 10:ani10111986. [PMID: 33137921 PMCID: PMC7692028 DOI: 10.3390/ani10111986] [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: 09/16/2020] [Revised: 10/09/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Goat production plays an important economic and social role in Northern Moroccan farming. Beni Arouss is an autochthonous North Moroccan goat breed. The use of artificial insemination can largely contribute to optimised preservation and dissemination of valuable traits of this breed and lead to improved productivity. During liquid storage, the stability of semen good quality remains crucial in order to provide greater flexibility between the artificial insemination center and farms where the insemination of does needs to be performed. The study aims to assess the effect of storage and season of the year on fresh semen of Beni Arouss goats. Every month, ejaculates were collected from bucks and were extended and stored at 16 °C for 24 h. Semen motility, viability and normal morphology were assessed at 0, 4, 8 and 24 h after collection. As expected, these parameters showed a significant reduction within 24 h of storage and during all seasons. However, semen collected in summer maintained a better quality after 24 h of storage at 16 °C than semen collected during the other periods. Therefore, the storage ability of Beni Arouss bucks’ semen stored at 16 °C was higher during the summer. Abstract The study aimed at determining the effect of storage and season on fresh semen of Beni Arouss goats. Ejaculates were collected at monthly intervals from seven mature bucks and were extended at a final concentration of 800 × 106 spermatozoa. ml-1 and stored at 16 °C for 24 h. Semen motility, viability and normal morphology were assessed at 0, 4, 8 and 24 h after collection. Motility and normal morphology parameters were recorded using computer-assisted sperm analysis (CASA) and viability was analyzed using eosin–nigrosin staining. As expected, motility, viability and normal morphology parameters showed a significant reduction within 24 h of storage and during all seasons (p < 0.05). However, semen collected in summer maintained a better quality after 24 h of storage at 16 °C than semen collected during the other periods (p < 0.05). In conclusion, the storage ability of Beni Arouss bucks’ semen stored at 16 °C was significantly higher during the summer.
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21
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Susilowati S, Triana IN, Sardjito T, Suprayogi TW, Wurlina W, Mustofa I. Effect of Simmental bull seminal plasma protein in egg yolk-citrate extender on Kacang buck semen fertility. Cryobiology 2020; 97:20-27. [PMID: 33121627 DOI: 10.1016/j.cryobiol.2020.10.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/15/2020] [Accepted: 10/21/2020] [Indexed: 12/18/2022]
Abstract
The genetic resources of Indonesia's indigenous Kacang goat require preservation. Artificial insemination is expected to accelerate population increases and preserve genetic resources simultaneously. The present study was the maiden attempt for cryopreservation of Kacang buck sperm. The objectives of this study were to determine whether the supplementation of superior Simmental bull seminal plasma protein in egg yolk-citrate extender could improve the quality of post-thawed Kacang buck sperm, increase conceptions rates, and improve kidding rates. Buck semen was diluted without supplementation (T0) and with supplementation of 2.5 mg (T1) and 5 mg (T2) of Simmental bull seminal plasma protein per mL egg yolk-citrate extender. Extended semen was packed in 0.25 mL straw as cryopreserved frozen semen. Post-thawed semen samples were evaluated for viability, motility, intact plasma membranes, malondialdehyde level, and DNA fragmentation. Estrus was synchronized for sixty Kacang does, which were divided randomly into three groups and inseminated using post-thawed semen. The progesterone serum concentration of the does was measured 7 and 22 days post-insemination to detect ovulation and conception. Pregnancy was confirmed using abdominal palpation at 43 days post-insemination and by observing birth. The T1 group showed the highest (P < 0.05) post-thawed viability, motility, and intact plasma membrane. Conception, pregnancy and kidding rates were also higher in T1 than other treatment groups. In conclusion, the 2.5 mg Simmental bull seminal plasma protein supplementation per mL egg yolk-citrate extender provided the best seminal quality and fertility of post-thawed Kacang buck semen.
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Affiliation(s)
| | | | - Trilas Sardjito
- Laboratory of Veterinary Artificial Insemination, Indonesia.
| | | | - Wurlina Wurlina
- Laboratory of Veterinary Infertility and Sterility, Indonesia.
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Wieczorek J, Koseniuk J, Skrzyszowska M, Cegła M. L-OPU in Goat and Sheep-Different Variants of the Oocyte Recovery Method. Animals (Basel) 2020; 10:ani10040658. [PMID: 32290243 PMCID: PMC7222852 DOI: 10.3390/ani10040658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/06/2020] [Accepted: 04/07/2020] [Indexed: 02/07/2023] Open
Abstract
Simple summary In this study, minimally invasive laparoscopic methods of recovering oocytes in goat and sheep (L-OPU, laparoscopic ovum pick-up) were developed and improved. Applying the laparoscopic technique allows animal welfare to be significantly improved while still maintaining high effectiveness of the method. The method allows a high number of good quality oocytes to be obtained and additionally reduces the invasiveness of the method and tissue damage which occurs during the operation to a minimum. It requires a short time and allows animals to return to the herd immediately after the operation has been completed. Additionally, it also gives the opportunity for maximum use of the animal’s genetic capability. The limitation of using the L-OPU method in goats is its variable and changing effectiveness. That is why it is crucial to develop an effective and repeatable method. The study compared several variants of the method including varying techniques of conducting the operation, various tools for recovering oocytes, and different plans of hormonal stimulation. As a result, an optimal method of recovering oocytes was developed. The research may be of great importance in improving the welfare of animals and increasing the effectiveness of biotechnological methods used in goat and sheep breeding as well as in the area of research. Abstract The laparoscopic method of recovering oocytes in goats and sheep is one of the minimally invasive methods used in the biotechnology of animal reproduction. It allows for good quality oocytes that are suitable for in vitro maturation and fertilization to be recovered. The limitation of using the laparoscopic ovum pick-up (L-OPU) method in goat and sheep is its changing effectiveness and the lack of repeatability of results, as well as the varying effectiveness of different variants of the method. Therefore, it is necessary to develop effective non-invasive techniques allowing for multiple good quality oocyte recovery that would be suitable for in vitro maturation and fertilization. In this study, four different L-OPU variants were described in goats and sheep. Various techniques of recovering oocytes were discussed, including the techniques of conducting the operation, various tools for recovering oocytes, and different plans of hormonal stimulation. Recovery rates were 35% (Variant I), 57% (Variant II), 72% (Variant III), and 67% (Variant IV). After evaluation, 94% (both Variant I and II), 93% (Variant III), and 84% (Variant IV) of the oocytes were qualified for in vitro maturation. The results of the study show that the proposed technique of laparoscopic recovery of oocytes allows a sufficient number of ovarian cells suitable for in vitro culture to be obtained and as a consequence it makes them useful in in vitro maturation/in vitro fertilization (IVM/IVF) programs or cloning. The method allows for a fast and effective conduct of the operation in a living donor with minimal invasiveness while preserving the excellent condition of animals.
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Affiliation(s)
- Jarosław Wieczorek
- University Centre of Veterinary Medicine UJ-UR, University of Agriculture in Krakow, 30-059 Krakow, Poland
- Correspondence: ; Tel.: +48-604-973-544
| | - Jurij Koseniuk
- Artvimed Centre for Reproductive Medicine, 30-147 Krakow, Poland;
| | - Maria Skrzyszowska
- Department of Reproductive Biotechnology and Cryoconservation, National Research Institute of Animal Production, 30-083 Balice/Krakow, Poland; (M.S.); (M.C.)
| | - Mirosław Cegła
- Department of Reproductive Biotechnology and Cryoconservation, National Research Institute of Animal Production, 30-083 Balice/Krakow, Poland; (M.S.); (M.C.)
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