Influência da adição da Insulina e do Fator de Crescimento semelhante à Insulina do Tipo I (IGF-I) ao meio crioprotetor seminal de bovinos

Abstract

The seminal plasma is composed of various substances that express the essential role of this body fluid in the maintenance of sperm functions in animals in vivo. Among these substances stand out some hormones such as insulin and growth factor similar to insulin type I (IGF-I) due to primary action in the structure and motility, favoring fertilization. Endocrine factors and / or sites are associated with the expression and / or function of these hormones, helping to better sperm condition. How crucial are the actions of these hormones in animals in vivo, can also serve as a parameter of sperm preservation against the stress caused in the use of cryogenic processes in the activities of biotechnology of animal reproduction.