scince 1990 research on clover has been commenced in karaj and other field stations of seed and plant improvement institute, iran. one of the achievements of this initiative is selection, improvement and release of alborz 1 crimson clover cultivar. new crimson clover cultivar, alborz 1 was primarily selected from clover germplasm received from food and agriculture organization (fao), the united...

Abstract The present experiment aimed to evaluate the effect of partial replacement corn with chocolate byproducts, protected fats, or their mixture supplemented zinc in diet lactating cows on feed utilization and lactation performance for 90 days. Fifty multiparous Holstein (565±25 kg BW, 3±1 parity, 7±1 days milk, a previous milk production 35±2.9 kg/d), were randomly assigned 5 treatments co...

The present study was conducted on efficiency of utilization of dietary energy for milk production in lactating crossbred cattle. 18 lactating crossbred cattle of early to mid-lactation, approximate body weight (375.39±23.43 kg), milk yield, parity and stage of lactation were divided into three groups of six animals each and were fed 0, 50 and 100% diammonium phosphate (DAP) in the mineral mixt...