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Cosentino IO, Balaro MFA, Silva PMD, Taira AR, Santos JDR, Ribeiro ACS, Figueiredo BRRD, Costa MMCPD, Vieira BR, Brandão FZ. Influence of eCG and reproductive management in the resynchronization of ovulation in dairy goats. Anim Reprod 2022; 19:e20210112. [PMID: 36156881 PMCID: PMC9484398 DOI: 10.1590/1984-3143-ar2021-0112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 08/31/2022] [Indexed: 11/30/2022] Open
Abstract
Resynchronization protocols have been proposed as a way of shortening females’ unproductive time in the flock, with good results in cattle and sheep. In goats, initial studies have shown that a second progestogen device inserted before luteolysis and pregnancy diagnosis does not interfere with the corpus luteum lifespan or functionality. This study aimed to evaluate the follicular growth, ovulation pattern and pregnancy rate after insertion of a second and new progestogen device for resynchronizing, with or without equine Chorionic Gonadotrophin (eCG), submitted to natural mating (NM) or artificial insemination (AI) to propose a viable resynchronization protocol for dairy goats. A total of 38 multiparous Saanen goats underwent a short-term progesterone protocol [six days exposed to medroxyprogesterone acetate (MAP) intravaginal sponges + 200 IU eCG and 0.12 mg of cloprostenol sodium on the 5th day + 0.025 mg of lecirelin 34 hours after sponge withdrawal] and, on day 16th after the ovulation, received a new MAP device which was retained until day 21. At this moment females were split into four groups: GeCG+NM – 100 IU eCG with NM; GSal+NM – saline solution with NM; GeCG+AI – 100 IU eCG with AI; and GSal+AI – saline solution with AI. Ultrasound scans were performed every 12 h from sponge withdrawal (day 21) until 108 h after sponge withdrawal (day 25) for follicular dynamics evaluation, at 240 h (day 31) for assessing the presence of active corpus luteum, and on day 60 for pregnancy diagnosis. No differences were found regarding ovulation time, synchronization and follicle size. However, GeCG+NM presented a greater estrus manifestation rate (100%) and pregnancy rate (62.5%) when compared to GSal+AI. In conclusion, resynchronization protocols in dairy goats may present satisfactory results.
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Abstract
Estrus synchronization and manipulation are a tool that has been used by producers to provide uniform lamb and kid meat production and dairy sheep and goat milk production, to concentrate work and labor cost, and to plan for the lambing and kidding time. Breeders can also use estrus synchronization to stimulate ewes and does to exhibit estrus and ovulate outside of the breeding season, although both the ovulation rate and pregnancy rate may be decreased. To increase the ovulation rate outside of the breeding season, a variety of estrus synchronization methods have been used.
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Affiliation(s)
| | - Michelle Anne Kutzler
- Animal and Rangeland Science, Oregon State University, 112 Withycombe Hall, Corvallis, OR 97331, USA
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3
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Sun S, Liu S, Luo J, Chen Z, Yang Y, Shi H, Li C, Luo J. Effects of repeated exposure to an estrus synchronization protocol on reproductive parameters in dairy goats. CANADIAN JOURNAL OF ANIMAL SCIENCE 2019. [DOI: 10.1139/cjas-2017-0183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Shuang Sun
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Shimin Liu
- School of Agriculture and Environment, The University of Western Australia, Crawley, WA 6009, Australia
| | - Jun Luo
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Zhi Chen
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Yang Yang
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Huaiping Shi
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Cong Li
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Jianing Luo
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
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El Kadili S, Raes M, Bister JL, Beckers JF, Amzati G, Archa B, Chentouf M, Kirschvink N. Evaluation of different hormonal treatments on oestral and ovarian responses in Moroccan Beni Arouss goats during anoestrus and breeding season. Reprod Domest Anim 2019; 54:1003-1009. [PMID: 31058368 DOI: 10.1111/rda.13454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 04/30/2019] [Indexed: 11/29/2022]
Abstract
The efficacy of eight combinations of fluorogestone acetate (FGA, 20 or 40 mg as intravaginal device during 11 days), equine chorionic gonadotropin (eCG, 300 or 500 UI injected 48 hr before FGA removal) and prostaglandin F2α (cloprostenol, 0 or 50 μg injected 48 hr before FGA removal) aiming at induction and synchronization of oestrus and ovulation was evaluated during the anoestrus season in spring and during the breeding season in autumn in adult Beni Arouss goats. Oestrous behaviour was recorded between 12 and 60 hr after FGA removal. Blood samplings allowing to assess onset of the pre-ovulatory LH surge and increase of progesterone as sign of an active corpus luteum were performed, respectively, between 20 and 60 hr and 3, 5, 8 and 15 days after FGA removal. No season-related differences (spring vs. autumn) were observed for oestrous response (95% vs. 93%), pre-ovulatory LH surge (94% vs. 84%) and luteal response after 3-8 and 11-15 days post-treatment (respectively 92% vs. 66% and 92% vs. 98%). The onset of oestrus (21 [13-53] vs. 32 [12-54] hr) and LH surge (26 [20-60] vs. 38 [22-60] hr) occurred significantly later in autumn. FGA (40 vs. 20 mg) in autumn significantly delayed the onset of oestrus (36 [16-54] vs. 23 [12-47] hr) and LH surge (44 [26-58] vs. 33 [22-60] hr). Significant treatment-related differences were recorded for onset of LH surge (earliest for 20 mg FGA, 300 IU eCG, 50 μg PGF2α ) and onset of luteal phase (latest for 40 mg FGA, 300 IU eCG, 50 μg PGF2α ). In conclusion, the hormone combinations tested appeared equally effective in terms of oestrous and ovulation rates. Season has influenced significantly the onset of oestrus and LH surge, and the high dose regimen of FGA delayed the ovarian response in autumn.
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Affiliation(s)
- Sara El Kadili
- Integrated Veterinary Research Unit, Department of Veterinary Medicine, Faculty of Sciences, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium.,Department of Animal Production, Ecole Nationale d'Agriculture de Meknès, Meknes, Morocco
| | - Marianne Raes
- Integrated Veterinary Research Unit, Department of Veterinary Medicine, Faculty of Sciences, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Jean-Loup Bister
- Integrated Veterinary Research Unit, Department of Veterinary Medicine, Faculty of Sciences, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | | | - Gaston Amzati
- Integrated Veterinary Research Unit, Department of Veterinary Medicine, Faculty of Sciences, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Bouchaib Archa
- Department of Animal Production, Ecole Nationale d'Agriculture de Meknès, Meknes, Morocco
| | - Mouad Chentouf
- Regional Center of Tangier, Institut National de la Recherche Agronomique, Tangier, Morocco
| | - Nathalie Kirschvink
- Integrated Veterinary Research Unit, Department of Veterinary Medicine, Faculty of Sciences, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
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Rodríguez-Martínez R, Meza-Herrera CA, Tapia-Robles KI, Alvarado-Espino AS, Luna-Orozco JR, Leyva C, Mellado M, Véliz-Deras FG. Effect of two routes of administration of human chorionic gonadotropin upon oestrus induction and reproductive outcomes in adult acyclic mix-breed goats. JOURNAL OF APPLIED ANIMAL RESEARCH 2017. [DOI: 10.1080/09712119.2017.1284075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- R. Rodríguez-Martínez
- Departamento de Ciencias Médico Veterinarias, Universidad Autónoma Agraria Antonio Narro-Unidad Laguna, Torreón, Coahuila, México
| | - C. A. Meza-Herrera
- Programa de Posgrado, Universidad Autónoma Chapingo, Unidad Regional Universitaria de Zonas Áridas, Bermejillo, Durango, México
| | - K. I. Tapia-Robles
- Departamento de Ciencias Médico Veterinarias, Universidad Autónoma Agraria Antonio Narro-Unidad Laguna, Torreón, Coahuila, México
| | - A. S. Alvarado-Espino
- Departamento de Ciencias Médico Veterinarias, Universidad Autónoma Agraria Antonio Narro-Unidad Laguna, Torreón, Coahuila, México
| | - J. R. Luna-Orozco
- Centro de Bachillerato Tecnológico Agropecuario No. 1, Torreón, Coahuila, México
| | - C. Leyva
- Departamento de Ciencias Médico Veterinarias, Universidad Autónoma Agraria Antonio Narro-Unidad Laguna, Torreón, Coahuila, México
| | - M. Mellado
- Departamento de Nutrición Animal, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila, México
| | - F. G. Véliz-Deras
- Departamento de Ciencias Médico Veterinarias, Universidad Autónoma Agraria Antonio Narro-Unidad Laguna, Torreón, Coahuila, México
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