Plasma Antimullerian Hormone as a Predictor of Ova... - BV FAPESP
Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Plasma Antimullerian Hormone as a Predictor of Ovarian Antral Follicular Population in Bos indicus (Nelore) and Bos taurus (Holstein) Heifers

Texto completo
Autor(es):
Batista, E. O. S. [1] ; Macedo, G. G. [1] ; Sala, R. V. [1] ; Ortolan, M. D. D. V. [1] ; Sa Filho, M. F. [1] ; Del Valle, T. A. [2] ; Jesus, E. F. [2] ; Lopes, R. N. V. R. [3] ; Renno, F. P. [2] ; Baruselli, P. S. [1]
Número total de Autores: 10
Afiliação do(s) autor(es):
[1] FMVZ USP Campus, Dept Anim Reprod, Sao Paulo - Brazil
[2] FMVZ USP Campus, Dept Anim Prod & Nutr, Sao Paulo - Brazil
[3] Genese Co, Sao Paulo - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: REPRODUCTION IN DOMESTIC ANIMALS; v. 49, n. 3, p. 448-452, JUN 2014.
Citações Web of Science: 43
Resumo

Contents In Bos taurus cattle, antimullerian hormone (AMH) has been demonstrated to have a high degree of correlation with ovarian antral follicle count and the number of healthy follicles and oocytes. To document the correlation between the plasma concentration of AMH and follicular number in Bos indicus and Bos taurus heifers, Nelore (Bos indicus, n=16) and Holstein heifers (Bos taurus, n=16) had their ovarian follicular waves synchronized. After synchronization, ovarian antral follicular population (AFP) was evaluated three times at 60-day (d) intervals (T-120 d, 120days before plasma AMH determination; T-60 d, 60days before; and T0, at the time of plasma AMH determination). The plasma AMH concentration was positively correlated with the number of ovarian follicles on the day of the follicular wave emergence in Bos indicus (Nelore) and Bos taurus (Holstein) heifers at each evaluation time (p<0.05). The AFP was higher in Bos indicus (Nelore) than in Bos taurus (Holstein) heifers (p<0.05). Similarly, the AMH concentration was higher in Bos indicus (Nelore) than in Bos taurus (Holstein) heifers (p<0.0001). When heifers were classified as to present high or low AFP according to the mean of the AFP within each genetic group, high-AFP heifers presented a greater (p<0.0001) AMH concentration than low-AFP heifers, regardless of the genetic group. In conclusion, the AFP is positively correlated with plasma AMH concentration in both Bos indicus (Nelore) and Bos taurus (Holstein) heifers. Furthermore, Bos indicus (Nelore) heifers presented both greater plasma AMH concentrations and AFP than Bos taurus (Holstein) heifers. (AU)

Processo FAPESP: 12/00889-5 - Respostas ovarianas, endócrinas e moleculares de novilhas taurinas e zebuínas submetidas a diferentes desafios nutricionais
Beneficiário:Pietro Sampaio Baruselli
Modalidade de apoio: Auxílio à Pesquisa - Regular