黄体酮阴道内植入对内洛尔小母牛妊娠率的影响

Estudos em Zootecnia e Ciência Animal Pub Date : 2020-01-31 DOI:10.34117/bjdv5n11-116

Vitória Cotrim Souza Figueredo, Antônio Ray Amorim Bezerra, Marina Silveira Nonato, Anderson Ricardo Reis Queiroz, Mateus Gonçalves Costa, Cleydson Daniel Moreira Miranda, Lorena Augusta Marques Fernandes, Ana Clara de Carvalho Araújo, Daniele Carolina Rodrigues Xavier Murta, D. Murta, João Marcos Leite Santos, Leandro Augusto Freitas Caldas

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引用次数: 2

摘要

牲畜具有巨大生存能力和经济回报的因素之一是通过生物技术进行优化，旨在提高小母牛的繁殖指数。定时人工授精(IATF)有许多优点。激素方案的发展是为了控制牛育种者的发情周期，调节卵巢卵泡动力学，同步产犊期和更好的牛群组织。本研究的目的是分析第三次使用和单次给药黄体酮装置在母牛体内的使用效率。将小母牛分为两组，一组单次给药，另一组多次给药(第3次给药)。实验证实，单剂量种植的动物具有较好的效果。

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EFEITO DO IMPLANTE INTRAVAGINAL DE PROGESTERONA NA TAXA DE PRENHEZ DE NOVILHAS NELORE

One of the factors of great viability and economic return within the livestock is the optimization, through biotechnologies, that aim to improve the reproductive index in heifers. Fixed Time Artificial Insemination (IATF) has numerous advantages. Hormonal protocols were developed to control the estrous cycle in bovine breeders and to regulate ovarian follicular dynamics, synchronizing calving periods and better herd organization. The objective of this study was to analyze the efficiency of the use of the 3rd use and single dose progesterone device in nellore heifers. Two groups of heifers were separated, and one group used single dose implant and another group multidose implant (3rd use). It was verified that the animals protocoled with single dose implant presented superior result.

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