Cardoso Christopher Júnior Tavares, de Oliveira Jair Sábio, Kischel Henrique, da Silva Wilian Aparecido Leite, Arruda Elielton Dias da Silva, Souza-Cáceres Mirela Brochado, de Oliveira Fernanda Amarante Mendes, Nogueira Ériklis, Nogueira Guilherme de Paula, Melo-Sterza Fabiana de Andrade
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Veterinary Medicine, Biomedical Sciences Faculty of Cacoal, Cacoal, RO, .
Anim Reprod. 2018 Aug 16;15(1):12-16. doi: 10.21451/1984-3143-2017-AR887.
Antral follicular population (AFP) and anti-Müllerian hormone (AMH) concentration are strongly associated. Thus, analyzing AMH concentration is a reliable method to predict animals with high AFP, an important feature to select donor cows for embryos and oocytes. However, not much is known about this parameter in heifers, particularly in crossbred animals. The aim of this study was to assess AFP in heifers and cows and its relation to serum AMH levels. cows (36-60-months-old; n = 30) and heifers (12-14-months-old; n = 17) of the same breed were evaluated. A single procedure of follicular counting was performed by ultrasound for each animal. Random sampling was performed to analyze serum AMH concentration. Cows showed higher AFP than heifers; nonetheless, plasma AMH concentration did not differ between the categories. A high correlation of AFP with plasma AMH concentration was observed in Girolando heifers. Thus, it is suggested that AMH concentration could be a reliable and less invasive method for selecting heifers with high AFP.
窦卵泡数量（AFP）与抗苗勒管激素（AMH）浓度密切相关。因此，分析AMH浓度是预测高AFP动物的可靠方法，这是选择胚胎和卵母细胞供体母牛的一个重要特征。然而，对于小母牛，尤其是杂交动物的这个参数了解不多。本研究的目的是评估小母牛和母牛的AFP及其与血清AMH水平的关系。对同一品种的母牛（36至60月龄；n = 30）和小母牛（12至14月龄；n = 17）进行了评估。对每只动物通过超声进行单次卵泡计数程序。进行随机抽样以分析血清AMH浓度。母牛的AFP高于小母牛；尽管如此，不同类别之间的血浆AMH浓度没有差异。在吉罗兰多小母牛中观察到AFP与血浆AMH浓度高度相关。因此，建议AMH浓度可能是一种可靠且侵入性较小的方法，用于选择高AFP的小母牛。
