Avaliação das características do sêmen resfriado de cães das raças Husky Siberiano e Chow Chow criados no Semiárido Paraibano com utilização de três diferentes diluidores.

Abstract

Climatic factors like heat and high humidity or very low act as triggers of heat stress, contributing to an increase in body temperature and testicular spermatogenesis influencing and reflecting, so in the male reproductive potential. The aim of this study was to evaluate the characteristics of cooled semen dog breeds Siberian Husky and Chow Chow created in semiarid Paraiba using three different extenders, namely: coconut water powder (ACP), skim milk (through Kenney) and TRIS-egg yolk. Semen samples from dogs of two breeds were diluted in three different extenders and then cooled to 5 ° C. We evaluated volume, motility, vigor, concentration and sperm morphology in intervals of 12 hours, while samples showed sperm motility and vigor. Were analyzed for the integrity of the plasma membrane by hypoosmotic test, every 12 hours. There was no statistically significant difference (P> 0.05) for the variables, and it can be concluded that the conditions of high temperature and lower humidity present in semiarid Paraiba not contributed to changes seminal characteristics of dog breeds and Chow Chow Siberian Husky in this study.