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Effect of Feeding Wet Distillers Grains with Solubles (WDGS) on Milk Yield and Composition in Crossbred Cows

Kavitha Pathakamuri, Ravi Arunachalam, Srinivasa Rao Duddu, Ravindra Reddy Yeddula, Padmaja Kondeti.


Abstract

To arrive at the optimum level of Wet Distillers Grains with Solubles (WDGS) in dairy cow diets, a 120-day lactation trial, using hybrid napier (APBN-1) green fodder and paddy straw as roughage and concentrate mixture (T1, control) or WDGS @ 15 (T2), 25 (T3) and 35 % (T4) of DM requirement using 24 Jersy x Sahiwal crossbred dairy cows @ 6 cows per treatment allotted at random to one of the four treatments. The chemical composition of the WDGS for DM, CP, CF, EE, NFE, TA, Ca and P was 28.22, 36.72, 7.16, 8.74, 42.12, 5.25, 0.32 and 0.67 per cent. There was no significant difference in DMI (kg/d) and body weight change among the groups. CP and EE intakes were significantly (P0.05) milk yield (4.74 to 5.8 kg/d), 4% FCM (5.39 to 7.04), % fat (4.99 to 5.52), fat yield (0.23 to 0.31 kg/d), protein yield (0.17 to 0.20 kg/d). Feed cost per kg FCM has decreased (P>0.05) from Rs.23.95 (T1) to Rs.19.76 (T4). Mean MUN (mg/dl) lower (P

Key words: WDGS, Crossbred Dairy Cows, Nutrient Intake, Milk Yield, Milk Composition






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