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Effect of feeding urea treated paddy straw on milk yield and its composition in crossbred cows

, : Effect of feeding urea treated paddy straw on milk yield and its composition in crossbred cows. Indian Journal of Animal Nutrition 9(2): 93-96

Twelve lactating crossbred (HF times local) cows were divided into 3 groups of 4 each. Chaffed paddy straw (UPS) was fed either as such or after treating with 4% urea at 50% moisture level stored for 28d (UTPS). UPS and UTPS were red ad lib to control (T-1) and experimental (T-2) and group T-3. Standard concentrate mixture @ 1 kg/2.5 kg milk plus additional allowance or 1.5 kg for maintenance was fed to each cow under both the groups. Metabolic trial of 7 d duration was conducted during the mid of experimental period lasting 180 d. The average milk yield/d was 11.04, 1262 and 11.93 l in groups T-1, T-2 and T-3, respectively. The average increase in milk yield in 180 d over initial milk yield in corresponding groups was recorded to be 0.27, 1.88 and 2.43 l. The increase in milk yield was significantly (P lt 0.01) higher in groups T-2 and T-3 over T-1 (control group). The animals of control group maintained body weights where as the animals in T-2 and T-3 gained considerably. The cost of production per kg milk worked out to be Rs. 1.73, 1.67 and 1.48 for groups T-1, T-2 and T-3, respectively. It was concluded that feeding of urea/ammonia treated paddy straw with even 75% of the total required concentrate, was advantageous for milk production.

Accession: 002355738

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