Год выпуска: 2014 Автор: Sukanta Mondal,Ippala Janardan Reddy and Avantika Mor Издательство: LAP Lambert Academic Publishing Страниц: 56 ISBN: 9783659593444
Описание
Bovines suffer from inherent problems like late maturity, poor expression of estrus, irregular estrous cycle, seasonality in breeding, anestrous, low conception rate, long postpartum interval and repeat breeding which are the major constraints in livestock productivity and fertility. The different phases of reproductive cycle are regulated by intricate sequential events and interactions between hypothalamic releasing hormones, hormones secreted from the pituitary and sex steroids secreted by the ovary. Lack of integration or synchronization or endocrine imbalances at any phase of the sequence may result in reproductive failure. A sound knowledge of reproductive functioning in terms of interplay of hypothalamic, gonadotropic and gonadal hormones, with synergistic and antagonistic influences from other hormones and factors involved in the regulation of various reproductive stages, accurate oestrus detection, timely pregnancy diagnosis and early detection of nonconceived stock can be...
