ISSN : 2663-2187

Effects Of Breed, Body Weight And Scrotal Circumference On Epididymal Sperm Abnormalities Of Imported Beef Bulls In Algeria

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Khaoula Ouarti , Farida Afri-Bouzebda and Zoubir Bouzebda
» doi: 10.48047/AFJBS.6.16.2024.3599-3609

Abstract

The present study was designed to investigate the influence of breed, body weight, scrotal circumference and its correlation with epididymal sperm abnormalities of 69 beef bulls imported and raised in Algeria. Semen samples were collected after slaughter from the cauda epididymis and stained using the Eosin Nigrosin stain. Percentage of head abnormalities, detached heads, mid-piece, tail abnormalities, proximal and distal cytoplamic droplets were recorded. The main types of sperm abnormalities observed were tail defects (33.46% ± 8.61), and distal cytoplasmic droplets (23.78% ± 12.76). Body weight and scrotal circumference have a significant effect (p<0,05) on tail abnormalities, similarly, the body weight has significant effect (p<0,05) on acrosome abnormalities. Body weight and scrotal circumference were negatively correlated with detached head (p<0,01) and Proximal droplets (p<0,05). Detached heads were more prevalent (p<0,05) in Aubrac and Blonde d’aquitaine bulls compared with Charolais bulls. In brief the bulls of >650Kg body weight and scrotal circumference >35cm, show a slight improvement in performance with regard to the majority of epididymal sperm abnormalities. These finding are important for the selection and conservation of epididymal sperm from beef bulls, prior to slaughter, for use in reproductive biotechnology programs.

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