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Oestrus Synchronization is a reproductive tool that assist farmers breed their animals within a Shorter predetermined time. Oestrus Synchronization is aimed at controlling the luteal phase of oestrus cycle using two major devices.(a)Using prostaglandins or its analogues to reduce the life of the corpus lutea or induce premature luteolysis.(b) Using exogenous rogester one to prolong the life of the corpus lutea, especially when the reproductive status of the goats is not yet determined. Use of prostaglandins is more effective in cycling goats. Some of the popular pharmaceuticals in the country are: i. Lutalyse, ii. Estrumate, iii. Estro PLAN, iv. Fluorogesterone acetate, v. Sil-Oestrus, vi. Medroxyl-progesterone acetate, ii. Synchromate-B, viii. PMSG ix. Controlled Internal Drug Release (CIDR) devices. Oestrus Synchronization techniques in WAD goats have not been widely adopted in spite of the qualities of the WAD goats because of the poor availability and obvious high costs of aforementioned pharmaceutical agents. The adoption of gonadotrophins in oestrus Synchronization protocols have been widely reported to improve oestrus responses in WAD goats. Efficiency of oestrus Synchronization are influenced by season and increasing the dose levels of exogenous hormones have generated variable results. Factors such as combining male stimuli with exogenous hormones, proper labeling of products (extra label for sheep and goats) and improvement of management techniques especially nutritional status of the animals would go a long way towards enhancing the efficiency of oestrus Synchronization in WAD goats.
Rosane Cavalcante Fragoso, Brasil
Chief Scientific Officer and Head of a Research Group
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