Oestrus Synchronization In Cattle Case Study

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OESTRUS SYNCHRONISATION IN CATTLE
SHELEMBE KHOLEKA
INTRODUCTION
Most beef and dairy farms in Africa use a pasture based breeding and calf rearing system which requires them to manage their herds such that calving and maximum milk production coincides with the period when the grass and pasture is good and nutritious which mainly occurs during spring and early summer (Xu et al., 1997; Lane et al., 2008). In order to maintain short breeding and calving seasons that would result in calving and peak milk production to coincide with the period when good quality pasture is available a reproductive technology called oestrus synchronisation maybe put to good use (DeJarnette, 2005).
Oestrus synchronisation is the manipulation of the reproductive process, mainly the oestrus cycle or the induction of the oestrus cycle to bring a
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Oestrus synchronization can be a useful tool in the reproductive management of a herd. However, proper levels of nutrition, body condition and health of the herd should be maintained to achieve successful oestrus synchronisation.
REFERENCES
DeJarnette, M. 2005. What’s New In Estrus Synchronization?
Hunter, R. H. 1980. Physiology and technology of reproduction in female domestic animals. Academic Press.
Jeong, J. K., H. G. Kang, T. Y. Hur, & I. H. Kim. 2012. Synchronization Using PGF 2α and Estradiol with or without GnRH for Timed AI in Dairy Cows. Journal of Reproduction and Development.
Lane, E., E. Austin, & M. Crowe. 2008. Oestrous synchronisation in cattle—Current options following the EU regulations restricting use of oestrogenic compounds in food-producing animals: A review. Animal reproduction science 109: 1-16.
Larson, L., & P. Ball. 1992. Regulation of estrous cycles in dairy cattle: a review. Theriogenology 38: 255-267.
Odde, K. 1990. A review of synchronization of estrus in postpartum cattle. Journal of Animal Science 68:

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