Effect of Supplementing Syzygium cumini (Jamun) Fruit Shreds to Total Mixed Ration on the Performance of Lactating Crossbred Cows

This study was taken up to assess the effect of supplementing Syzygium cumini (Jamun) fruit shreds on nutrient utilization, enteric methane (CH₄) emission and performance of the lactating crossbred cows (CBCs). Twelve lactating CBCs were allocated into two groups (n=6) and were fed a total mixed ration (TMR) containing concentrate mixture, green Berseem fodder (Trifolium alexandrium) and wheat straw in 40: 42: 18 ratio on DM basis supplemented with or without S. cumini @ 2% for 180 days. A 14 days digestion trial was conducted by indicator method using chromic oxide green as an external marker, before the termination of feeding trial. The enteric CH₄ production was assessed by sulfur hexafluoride (SF₆) tracer technique. S. Cumini fruit shreds are rich source of phenolics (21.78%), antioxidants (4.95%) and saponins (4.35%). Supplementation of diet with S. cumini fruit shreds did not affect intake and digestibility of nutrients. The CH₄ emission was mitigated (P<0.05) by 29% in CBCs fed on TMR supplemented with S. cumini fruit shreds. Supplementation of diet with S. cumini fruit shreds did not show any adverse effect on milk yield. It was concluded that CH₄ emission can be mitigated in lactating CBCs fed TMR supplemented with S. cumini fruit shreds without any adverse effect on the performance of lactating CBCs.