PHYSIOLOGICAL RESPONSE AND SEMEN QUALITY OF RABBIT BUCKS SUPPLEMENTED WITH SELENIUM AND TRIBULUS TERRESTRIS EXETRACT DURING SUMMER SEASON

Document Type : Original Article

Authors

1 Anim. Prod. Res. Instit., Agric. Res. Cent., Egypt

2 Anim. Prod. Res. Instit., Agric. Res. Cent., Egypt, Alexandria, Egypt

Abstract

ABSTRACT: The aim of this study was to evaluate the effects of inclusion aqueous extract of Tribulus genuses (ETT) with selenium on semen quality and physiological response of mature buck rabbits during summer season. Thirty six of mature buck rabbits and forty-eight does of Californian breed were randomly divided into six equal treatment groups (6 buck + 8 does per each). The first treatment group was fed on basal diet (unsupplied group) and served as control. The other five treatments were fed the same basal diet and orally supplied with 0.4 mg Se/L (Se), 50 mg ETT/kg BW (ETT1), 100 mg/kg BW (ETT2), 0.4 mg Se/L+ 50 mg ETT/kg BW (ETT1+Se) and 0.4 mg Se/L+100 mg ETT/kg BW (ETT2+Se), respectively.
The results indicated that the different supplied groups had a significantly higher follicle stimulating (FSH), luteinizing (LH), testosterone, progesterone and estrogen hormones levels than the control group. The groups supplemented with of ETT and Se showed high levels of FSH, LH, FT and E217β than another groups. However, no significant differences were found among all supplemented groups regarding blood biochemical parameters. Administrations of ETT and Se significantly increased plasma total antioxidant capacity and immunoglobulin M levels. On the other hand, the level of malondialdehyde was significantly decreased for the treated groups compared with the control group.  Also, ejaculate volume, sperm motility, sperm concentration, cell integrity, fertility rate and litter size at birth were significant increases, while reaction time, abnormal sperm and dead sperm were significantly decreased.  The groups ETT1+Se and ETT2+Se recorded height rate of fertility and increase number of litter size at birth. Treated groups showed statistically heaviest final body weight, body weight gain and lowest feed conversion compared with the control group.
Conclusively, extract Tribulus Terrestris (al-Hasakah) plantwith selenium led to improve the activity of sex hormones, oxidative status and immunity, and the additives improved the quality of semen and increased fertility and Litter size at birth abdominal size at birth during summer condition.
Key word:

Keywords