Publicação: Effect of oestrus synchronization protocols, lactation yield and body condition score on conception rates in buffaloes
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The effect of lactation and body condition score (BCS) on the conception rates in the Ovsynch program was evaluated in buffalo. During postpartum period (>40 days), 87 buffaloes received 25mg of Lecirelin IM on day 0 and 150 mg of D-cloprostenol IM on day 7. On Day 8, 43 buffaloes received 1.0 mg of estradiol benzoate (EB) IM (group 2). In group 1, 44 animals received 25 mg of Lecirelin IM on Day 9. All animals were fixed time inseminated 30 hours after EB (group 2) or 16 hours after second GnRH injection (group 1). Besides, animals were divided into two groups according to daily milk production (<7.0 or >7.0 liters per day) to evaluate the effect of lactation yield in the treatments. The conception rates did not differ according BCS. In group 1, the lactation yield did not interfere in the conception rate of animals treated with GnRH on day 9 (P>0.05). In group 2, animals with higher daily lactation yield had lower conception rate than buffales with lower milk production.
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Indian Veterinary Journal, v. 82, n. 1, p. 45-47, 2005.
