Seasonal influence on sperm parameters, scrotal measurements, and serum testosterone in Ouled Djellal breed rams in Algeria

Autor: L. Belkacem, Nouzha Heleili, B. Safsaf, S. Belkadi, M. Tlidjane, Y. Oucheriah
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Veterinary World
Veterinary World, Vol 10, Iss 12, Pp 1486-1492 (2017)
ISSN: 2231-0916
0972-8988
Popis: Aim: This study was conducted to determine the effect of seasonal variations on testosterone serum concentration, body weight, scrotal circumference, and some sperm parameters in rams living in a semi-arid region of eastern part of Algeria. Materials and Methods: Blood samples were taken monthly from eight Ouled Djellal rams, aged between 3 and 4 years, in the Technical Institute of Breeding "ITELV" located at Ain M'lila City. Sperm were collected by an electro-ejaculator once a month for 1 year (spring, summer, autumn, and winter: 3 times/season). Results: Mean values of volume, mass motility, live sperm, and scrotal circumference were higher during spring (p
Databáze: OpenAIRE