Regulación neuroendocrina del ciclo estral en la hembra bovina
Regulación neuroendocrina del ciclo estral en la hembra bovina
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El conocimientos actual sobre la fisiología reproductiva ha modificado sustancialmente los conceptos que existían sobre la regulación del ciclo estral, situación que se ha producido básicamente a causa del desarrollo de la biotecnología de la reproducción, principalmente la transferencia de embriones y la fecundación in vitro, las que han exigido de un conocimiento cabal de los procesos de tipo estructural y funcional de los órganos que constituyen el eje hipotálamo-hipófisis-ovario, además se ha profundizado también en los roles protagónicos del útero y el embrión, en todo este complejo proceso. El objetivo de esta revisión es exponer de modo accesible una visión general de la regulación neuroendocrina del ciclo estral, precisando los aspectos que constituyen los núcleos conceptuales de este proceso, de modo tal que pueda comprenderse, con relativa facilidad, las variaciones que frecuentemente se observan en el comportamiento del ciclo de las hembras bovinas.
Palabras Clave: Ciclo estral vaca; foliculogénesis; dinámica folicular; ovocitación.Descargas
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