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Viability and fertility of stallion semen frozen with ethylene glycol and acetamide as a cryogenic agent

Snoeck, P P N; Cottorello, A C P; Henry, M.
Anim. Reprod.; 9(1): 33-39, 2012.
Artigo em Inglês | VETINDEX | ID: vti-8556


This study was designed to determine the effect of cooling at a rate of - 0.13 o C/min or any slow cooling prior to freezing on stallion sperm and to determine th e effect of two thawing temperatures on the viability of sperm frozen using a lactose - EDTA - egg yolk extender (LAC) with 3.5% ethylene glycol (LAC 3.5% EG) or a LAC with the additional incorporation of methyl cellulose, trehalose and acetamide (LAC+5% AC). No differences were observed in the post - thaw parameters of sperm frozen using either one of the cryogenic agents or frozen with or without previous slow cooling. Thawing at 75 o C was better than at 37 o C (P < 0.05). An interaction was observed between the c ryoprotectant and the freezing protocol (P < 0.05). A conception rate of 23.3% was obtained after AI using equine semen frozen with LAC+5% AC.(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1