Effect of vitamin E, selenium and increased energy allowance on steroids and reproductive performance in transition period of crossbred cattle

Abstract

The present study was designed to bring out the effects of antioxidant and increased energy allowance on

Effect of Dietary Enrichment with Copper and Zinc Along with Additional Energy during Periparturient Period on Ovarian Steroids and Reproductive Performance in the Crossbred Cattle

“…Smith et al, (1973) and Corah et al, (1974) demonstrated that estradiol increased linearly from one month prepartum and showed peak level at parturition, thereafter decreased at one day postpartum and remained at basal level until first postpartum estrus Corah et al, (1974) reported non-significant effect of energy level on plasma estrogen at transition period in cows. Similar finding was obtained by Khatti et al, (2017) with supplementation of high energy diet with Vitamin E and Se in the serum of crossbred cows.…”

“…In support of present results, Kamada and Hodate (1998) found that Se supplementation increased plasma progesterone concentration by 22% as compared to control in the postpartum cows which was attributed to the antioxidant effects and decreased amount of lipid peroxides (LPO) in the cells Atilia et al, (2015). However, Khatti et al, (2017) reported no marked effect of high energy diet supplemented with Vitamin E and Se on serum progesterone concentration during periparturient period. Further Ganie et al, (2014) also observed that Se supplementation had no effect on serum profile of reproductive steroids in buffalo heifers (Fig.…”

“…Increasing the glucogenic nutrient availability improves the energy balance resulting in better reproductive performance in dairy cows Knegsel et al, (2007). Supplementation of vitamin E and Se in late gestation has shown to improve the fertility in the buffalo and cow Mavi et al, (2006); Khatti et al, (2017). Vitamin E and Zn supplementation significantly (P<0.05) decreased the days open and took lesser service per conception in cows De et al, (2014, Campbell et al, (1998.…”