Lactation performance of cows fed ration containing corn substituted rice bran crude lecithin Tewari Dharmesh*, Chaturvedi V.B., Dutta Narayan Centre of Advanced Faculty Training in Animal Nutrition ICAR-Indian Veterinary Research Institute, Izatnagar-243122, India *Corresponding author: dharmesh.tewari@rediffmail.com
Online Published on 28 November, 2022. Abstract Tewari, D., Chaturvedi, V.B. and Dutta, N. 2022. Lactation performance of cows fed ration containing corn substituted rice bran crude lecithin. Animal Nutrition and Feed Technology, 22: 619–626. The present study was conducted to evaluate the effect of rice bran crude lecithin (RBCL) on milk yield, haemato-biochemical, reproductive and productive performance of dairy cows. Twelve lactating cows were randomly divided into two dietary groups (RBCL-0 and RBCL-6). In group RBCL-0 (control) cows were fed dairy concentrate mixture (CM1), while in RBCL-6 (supplemented) group the cows were fed concentrate mixture (CM2) with 6% RBCL along with napier grass and wheat straw as roughage. The nutrient intake was analogous between dietary treatment groups. The total milk yield, daily milk yield, fat corrected milk and energy corrected milk was significantly (P<0.05) higher in RBCL-6 as compared to RBCL-0 cows. The milk composition was also found to be comparable between dietary groups, however, fat yield was appreciably (P<0.05) higher in RBCL-6 as compared to RBCL-0 cows. The calving to first oestrus interval was lesser while conception rate was superior in RBCL supplemented cows. The income from milk sale and profit per cow was significantly (P<0.05) higher in RBCL supplemented cows as compared to non-supplemented cows. Hence, it can be concluded that supplementation of 6% RBCL in concentrate mixture through corn replacement improved the lactation and reproductive performance of lactating cows. Top Keywords Economics, Haemato-biochemical, Milk constituents, Reproduction. Top |