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