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Effects of ambient temperature, season, breed and age on spermiogram of sire in Tunisia
Ben Rhouma, L*, Ben Mrad, M. and Najar, T.
Institut National Agronomique de Tunisie; 43, Avenue Charles Nicolle, 1083, Tunis, Tunisie
 
Abstract

The objectives were to determine the effects of ambient temperature, season, breed and age on spermogram of 13 AI sires (3 Holstein, 5 Tarentaise and 5 Brune des Alpes) raised in Tunisia whose age varied from 24 to 46 months and the body weight varied from 500 to 900 Kg. Study was undertaken from June 2007 to July 2008 on 654 fresh ejaculates. Results showed that volume, concentration and progressive motility decreased when ambient temperature increased. However, when ambient temperature increased, pH, percentages of live spermatozoa and major abnormalities increased. Besides, there was no correlation between ambient temperature, motility and minor abnormalities. There was a significant difference (P<0.05) for volume and percentage of live spermatozoa between the two classes of age. A significant difference existed between seasons for the pH of Holstein bulls and the concentration for Brune des Alpes bulls. Furthermore, pH, concentration, motility and minor anomalies did not change (P<0.05) within breeds. However, volume, percentage of live spermatozoa and major and total anomalies of ejaculates varied between the three breeds.

Keywords: Bull; semen; quality; season; age; breed
 
To cite this article: Ben Rhouma L, Ben Mrad M and Najar T, 2012. Effects of ambient temperature, season, breed and age on spermiogram of sire in Tunisia. Res. Opin. Anim. Vet. Sci., 2(8), 473-479.
 
 
 
 
 
 
 
 
 
 
 
 

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