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Effect of dietary zinc and selenium supplementation on reproductive performance of male goats /

Gamal Attia Abdelhamid ElSisy

Effect of dietary zinc and selenium supplementation on reproductive performance of male goats / تاثير اضافة الزنك و السيلينيوم الى العليقة على النشاط التناسلى لذكور الماعز Gamal Attia Abd El Hamid ElSisy ; supervised Mohamed Samy Saied Abdou , Abd El Raouf Morcy Ghallab , Abd El Razek Mahmoud Aly Abd El Razek - Cairo : Gamal Attia Abdehamid ElSisy , 2005 - 272L : ill ; 30cm

Thesis (PH.D.) - Cairo University - Faculty Of Veterinary Medicine - Department Of Theriogenology

Twelve , male Baladi goats were used investigate the effect of organic zinc and selenium supplementation on testicular size , sex drive , semen characteristics , testosterone and thyroid (T4 and T3) hormones concentrations as well as on some antioxidant enzymes in blood and seminal plasmaGoat bucks were assigned into three groupsGroup A served as a control , Group B supplemented with 40 - ppm zinc and Group C was supplemented with 015 ppm seleniumZinc and selenium - supplementation animals resulted in significant improvement in testicular size , sex drive , semen characteristics , testosterone and thyroid hormone concentrationAlso , increased antioxidant defense in the semen and blood cells



Dietary zinc Male Goats Performance Selenium