Postpartum reproductive efficiency in cows supplemented with rumen bypass fat

Postpartum infertility due to negative energy balance is a major problem among the high producing cows, incurring a huge economic loss. The present study was aimed to evaluate the effect of supplementation of bypass fat on the reproduction and production parameters of high yielding crossbred cows with or without postpartum hormonal induction of oestrus. The trial was conducted with four experimental groups of six cows each (GI – control, GII- 200 g bypass fat, GIII – 200 g bypass fat daily + Ovsynch protocol, GIV – Ovsynch protocol alone). The animals in GII and GIII were observed to be superior in milk production parameters viz. peak yield (P