Puberty and parturition on the antral follicle count of female Nelore beef cattle

IF 0.7 4区农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY

Pesquisa Agropecuaria Brasileira Pub Date : 2023-01-01 DOI:10.1590/s1678-3921.pab2023.v58.03140

Luiz Francisco Machado Pfeifer, Jair Sábio de Oliveira Júnior, Marcelo Marcondes Seneda, Higor Souza de Camargo, Fábio Morotti, Evelyn Rabelo Andrade, Elizângela Mirian Moreira, Jéssica Souza Andrade, George Moreira da Silva, Marlos Oliveira Porto, Jucilene Cavali

引用次数: 0

Abstract

Abstract The objective of this work was to investigate whether puberty and parturition alter the antral follicle count (AFC) in female Nelore (Bos indicus) beef cattle. Two experiments were carried out to compare AFC between the prepubertal and pubertal periods and between the prepubertal and postpartum periods. AFC and follicle concentrations did not differ between the prepubertal and pubertal periods. However, the ovarian area increased after puberty. In addition, AFC and the ovarian area were greater in the postpartum than in the prepubertal period. Therefore, AFC is not affected by the puberty of Nelore heifers, but increases significantly when the prepubertal heifers become cows.

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雌性耐洛尔肉牛青春期和分娩对卵泡计数的影响

摘要本研究旨在探讨青春期和分娩是否会改变雌性内洛尔肉牛的窦卵泡计数(AFC)。通过两项实验比较了青春期前与青春期、青春期前与产后的AFC。AFC和卵泡浓度在青春期前和青春期之间没有差异。然而，卵巢面积在青春期后增大。此外，AFC和卵巢面积在产后大于青春期前。因此，AFC不受内洛尔小母牛青春期的影响，但当前青春期小母牛变成奶牛时，AFC显著增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pesquisa Agropecuaria Brasileira 农林科学-农业综合

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

9-18 weeks

期刊介绍： Pesquisa Agropecuária Brasileira – PAB – is issued monthly by Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA, affiliated to Ministry of Agriculture, Livestock and Food Supply. PAB publishes original scientific-technological articles on Plant Physiology, Plant Pathology, Crop Science, Genetics, Soil Science, Food Technology and Animal Science. Its abbreviated title is Pesq. agropec. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.