Reproduction, Fertility and Development Reproduction, Fertility and Development Society
Vertebrate reproductive science and technology
RESEARCH ARTICLE

Hormonal treatments for the synchronisation of oestrus in dairy goats raised in the tropics

V. J. F. Freitas A B , D. Rondina A , E. S. Lopes Júnior A , D. I. A. Teixeira A and N. R. O. Paula A
+ Author Affiliations
- Author Affiliations

A Laboratory of Physiology and Control of Reproduction, State University of Ceará, Faculty of Veterinary, Fortaleza-CE, 60740-000, Brazil.

B To whom correspondence should be addressed. email: vjff@uece.br

Reproduction, Fertility and Development 16(4) 415-420 https://doi.org/10.1071/RD04031
Submitted: cfArticle2ecfc1997462761$funcRECEIVEDDATE@34ff5b84  Accepted: 23 March 2004   Published: 6 July 2004

Abstract

In tropical areas, local goats are often reported as being able to reproduce throughout the year, whereas an influence of season is found to be a factor when importing different dairy breeds. In these areas, oestrus synchronisation in goats is of interest for both technical (synchronisation of kidding, adjustment to forage availability or to continuous milk supply) and genetic reasons (dissemination of improved genotypes by AI). The use of a progestagen vaginal sponge combined with equine chorionic gonadotrophin (eCG)-cloprostenol injections remains an efficient tool to achieve synchronisation in temperate and tropical zones. However, the oestrus synchronisation treatments currently used for goats in tropical regions were originally developed for goats bred in temperate regions. For this reason, several alternative possibilities for improving the efficiency of the hormonal treatment are evaluated. Oestrus synchronisation with luteolytic agents is efficient (resulting in more than 70% of goats in oestrus) and it takes into account female cyclicity. In developing regions of the tropics, the use of buck teasing appears to be a promising approach to control oestrus and ovulation. The use of this technique provides 60% of females in oestrus within 5 days of introducing the bucks. Considering the availability of nutrients as the ultimate regulator of reproduction in the tropics, the control of nutritional condition is essential before the use of hormonal treatments for oestrus synchronisation in goats bred in these regions takes place.

Extra keywords: fertility.


Acknowledgments

The authors would like to thank the staff of the Laboratory of Physiology and Control of Reproduction, State University of Ceará, Faculty of Veterinary, Fortaleza, Brazil: K. Almeida, I. Arruda, I. Machado, E. Maia, R. Matos and A. Sousa for their assistance with this study. Part of the experiments presented here were supported by grants of CNPq (Brasilia, Brazil) and FUNCAP (Ceará, Brazil).


References

Ahmed, M. M. M. , Makawi, S. E. , and Jubara, A. S. (1998). Synchronization of oestrus in Nubian goats. Small Ruminant Res. 30, 113–120.
CrossRef |

Baril, G. , Rémy, B. , Vallet, J. C. , and Beckers, J. F. (1992). Observations sur l’utilisation de traitements gonadotropes répétés chez la chévre laitiére. Ann. Zootech. 41, 291–296.


Baril, G. , Leboeuf, B. , and Saumande, J. (1993). Synchronization of estrus in goats: the relationship between time of occurrence of estrus and fertility following artificial insemination. Theriogenology 40, 621–628.
CrossRef |

Boland, M. P. , Lonergan, P. , and O’Callaghan, D. (2001). Effect of nutrition on endocrine parameters, ovarian physiology, and oocyte and embryo development. Theriogenology 55, 1323–1340.
CrossRef | PubMed | PubMed |

Chemineau, P. (1983). Effect on oestrus and ovulation of exposing Creole goats to the male at three times of the year. J. Reprod. Fertil. 67, 65–72.
CrossRef | PubMed | PubMed |

Chemineau, P. (1985). Effects of a progestagen on buck-induced short ovarian cycles in the Creole meat goat. Anim. Reprod. Sci. 9, 87–94.
CrossRef |

Chemineau, P. (1986). Sexual-behavior and gonadal activity during the year in the tropical Creole meat goat. 1. Female estrous behavior and ovarian activity. Reprod. Nutr. Dev. 26, 441–452.


Chemineau, P. , Daveau, A. , Maurice, F. , and Delgadillo, J. A. (1992). Seasonality of estrus and ovulation is not modified by subjecting female Alpine goats to a tropical photoperiod. Small Ruminant Res. 8, 299–312.
CrossRef |

Corteel, J. M. (1975). Use of progestagens to control estrous cycle of dairy goat. Ann. Biol. Anim. Biochem. Biophys. 15, 353–363.


Corteel, J. M. , Leboeuf, B. , and Baril, G. (1988). Artificial breeding of adult goats and kids induced with hormones to ovulate outside the breeding season. Small Ruminant Res. 1, 19–35.
CrossRef |

Cruz, J. F. , Guimarães, M. F. , Marques, M. B. , Oliveira, D. F. , Teixeira, D. I. A. , Rondina, D. , and Freitas, V. J. F. (2003). Comportamento sexual de cabras da raça Saanen criadas na região Nordeste do Brasil. Rev. Bras. Reprod. Anim. 27, 247–249.


Diskin, M. G. , Mackey, D. R. , Roche, J. F. , and Sreenan, J. M. (2003). Effect of nutrition and metabolic status on circulating hormones and ovarian follicle development in cattle. Anim. Reprod. Sci. 78, 345–370.
CrossRef | PubMed | PubMed |

FAO (2001). ‘Production Yearbook 1999.’ Vol. 53. Statistical Series No. 156. pp. 137–139. (Food and Agriculture Organization of the United Nations: Rome, Italy)

Freitas, V. J. F., and  Salles, M. G. F. (2000). Adaptation of eCG (equine Chorionic Gonadotrophin dose for estrus synchronization of dairy goats raised in Northeast Brazil: preliminary results. In ‘Proceedings of the 7th International Conference on Goats, Tours, France’. (Eds. L Gruner and Y Chebert)  pp. 465–466. (Institut de l’élevage and INRA: Paris, France.)

Freitas, V. J. F. , Baril, G. , and Saumande, J. (1996a). Induction and synchronization of estrus in goats: the relative efficiency of one vs two fluorogestone acetate impregnated vaginal sponges. Theriogenology 46, 1251–1256.
CrossRef |

Freitas, V. J. F. , Baril, G. , Bosc, M. , and Saumande, J. (1996b). The influence of ovarian status on response to estrus synchronization treatment in dairy goats during the breeding season. Theriogenology 45, 1561–1567.
CrossRef |

Freitas, V. J. F. , Baril, G. , and Saumande, J. (1997a). Estrus synchronization in dairy goats: use of fluorogestone acetate vaginal sponges or norgestomet ear implants. Anim. Reprod. Sci. 46, 237–244.
CrossRef | PubMed | PubMed |

Freitas, V. J. F. , Baril, G. , Martin, G. B. , and Saumande, J. (1997b). Physiological limits to further improvement in the efficiency of oestrus synchronisation in goats. Reprod. Fertil. Dev. 9, 551–556.
CrossRef | PubMed | PubMed |

Gonzalez-Stagnaro, C., and  Madrid-Bury, N. (1982). Sexual season and oestrus cycle of native goats in tropical zone of Venezuela. In ‘Proceedings of the 3rd International Conference on Goat Production and Disease, Tucson, USA, July, 1982’.  pp. 311. (International Goat Association: Tucson, AZ, USA.)

Greyling, J. P. C. , and Van Niekerk, C. H. (1991). Different synchronization techniques in Boer goat does outside the normal breeding season. Small Ruminant Res. 5, 233–243.
CrossRef |

Guido, S. I. , Oliveira, M. A. L. , and Lima, P. F. (1997). Utilização do programa Syncro-Mate B para induzir e sincronizar o estro de cabras leiteiras. Rev. Bras. Reprod. Anim. 21, 134–136.


Knights, M. , and Garcia, G. W. (1997). The status and characteristics of the goat (Capra hircus) and its potential role as a significant milk producer in the tropics: a review. Small Ruminant Res. 26, 203–215.
CrossRef |

Kusina, N. T. , Chinuwo, T. , Hamudikuwanda, H. , Ndlovu, L. R. , and Muzanenhamo, S. (2001). Effect of different dietary energy level intakes on efficiency of estrus synchronization and fertility in Mashona goat does. Small Ruminant Res. 39, 283–288.
CrossRef |

Leboeuf, B. , Nercy, C. , and De Ruyter, T. (1994). L’insémination artificielle caprine au Rwanda. Adaptation à la chèvre rwandaise de la méthode utilisée pour les races laitières européennes. Rev. Elev. Med. Vet. Pays Trop. 47, 240–243.


Leboeuf, B. , Forgerit, Y. , Bernelas, D. , Pougnard, J. L. , Senty, E. , and Driancourt, M. A. (2003). Efficacy of two types of vaginal sponges to control onset of oestrus, time of preovulatory LH peak and kidding rate in goats inseminated with variable numbers of spermatozoa. Theriogenology 60, 1371–1378.
CrossRef | PubMed | PubMed |

Llewelyn, C. A. , Ogaa, J. S. , and Obwolo, M. J. (1993). Plasma progesterone profiles and variation in cyclic ovarian activity throughout in indigenous goats in Zimbabwe. Anim. Reprod. Sci. 30, 301–311.
CrossRef |

Lima, F. R. G. , Araújo, A. A. , and Freitas, V. J. F. (1997). Uso de diferentes tratamentos hormonais para sincronização do estro em cabras nativas do Nordeste do Brasil. Rev. Bras. Reprod. Anim. 21, 136–138.


Lopes Júnior, E. S. , Rondina, D. , Simplício, A. A. , and Freitas, V. J. F. (2001). Estrous behaviour and performance in vivo of Saanen goats raised in Northeast of Brazil. Livest. Res. Rural Develop. 13, 41–50.


Machado, R. , and Simplício, A. A. (2001). Avaliação de programas hormonais para indução e sincronização do estro em caprinos. Pesq. Agrop. Bras. 36, 171–178.


Mani, A. U. , McKelvey, W. A. C. , and Watson, E. D. (1992). The effects of low level of feeding on response to synchronization of estrous, ovulation rate and embryo loss in goats. Theriogenology 38, 1013–1022.
CrossRef |

Mani, A. U. , McKelvey, W. A. C. , and Watson, E. D. (1996). Effect of undernutrition on gonadotrophin profiles in non-pregnant, cycling goats. Anim. Reprod. Sci. 43, 25–33.
CrossRef |

Mergulhão, F. C. C. , Guerra, M. M. P. , Batista, A. M. , Bispo, C. A. S. , Souza, A. F. , Coleto, Z. F. , and Simplício, K. M. M. G. (2003). Influência do protocolo de sincronização sobre a duração do estro de cabras leiteiras. Rev. Bras. Reprod. Anim. 27, 485–486.


Mgongo, F. O. K. (1988). The effects of buck teasing on synchronization of estrus in goats after intravulvo-submucosal administration of cloprostenol. Theriogenology 30, 987–995.


Oliveira, M. A. L. , Guido, S. I. , and Lima, P. F. (2001). Comparison of different protocols used to induce and synchronize estrus cycle of Saanen goats. Small Ruminant Res. 40, 149–153.
CrossRef |

Ritar, A. J. (1993). Control of ovulation, storage of semen, and artificial insemination of fibre-producing goats in Australia: a review. Aust. J. Exp. Agric. 33, 807–820.


Ritar, A. J. , Ball, P. D. , and O’May, P. J. (1990). Artificial insemination of Cashmere goats: effects on fertility and fecundity of intravaginal treatment, method and time of insemination, semen freezing process, number of motile spermatozoa and age of females. Reprod. Fertil. Dev. 2, 377–384.
PubMed | | PubMed |

Rondina, D. (1998). Effect of nutritional state on quantitative and qualitative development of ovarian preantral follicles in does SRD (Capra hircus L.). PhD Thesis. (University of Florence: Florence, Italy.)

Selvaraju, S. , Agarwal, S. K. , Karche, S. D. , and Majumdar, A. C. (2003). Ovarian response, embryo production and hormonal profile in superovulated goats treated with insulin. Theriogenology 59, 1459–1468.
CrossRef | PubMed | PubMed |

Simplício, A. A. , Riera, G. S. , Nunes, J. F. , and Foote, W. C. (1986). Frequency and duration of estrous-cycle and period in genetically non-descript (SRD) type of goats in the tropical Northeastern of Brazil. Pesq. Agropec. Bras. 21, 535–540.



Rent Article (via Deepdyve) Export Citation Cited By (5)