- Volume 16 Issue 5
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Production Performance and Carcass Characteristics of Malpura and Mutton Synthetic Lambs Fed Low and High Energy Rations in a Semiarid Region of India
- Singh, N.P. (Division of Animal Nutrition Central Sheep and Wool Research Institute) ;
- Sankhyan, S.K. (Division of Animal Nutrition Central Sheep and Wool Research Institute) ;
- Prasad, V.S.S. (Division of Animal Nutrition Central Sheep and Wool Research Institute)
- Received : 2002.09.17
- Accepted : 2003.01.14
- Published : 2003.05.01
Forty eight lambs (24 each of Malpura and Mutton synthetic breeds) were weaned at 90 days of age and divided into two groups. One group of 12 lambs from each of the two breeds was maintained on low energy (52% TDN) and the other group of 12 on high energy (58% TDN) feedlot ration until 6 of the lambs attained 20 kg and the other 6 attained 25 kg live weight in each of the two groups. Daily feed intake and weekly body weights were recorded. Conventional metabolism trials were conducted on the two breeds and the two rations. The growth rate was found to be higher for lambs on high energy ration (p<0.01). The growth rate was also higher for higher target weight groups (p<0.01). The breed did not significantly affect the live weight gains. Mutton synthetic lambs required less number of days to reach 20 kg live weights but took more time to reach 25 kg target weight as compared to Malpura lambs (p<0.01). The lambs of both the breeds reached 25 kg live weight earlier on high energy than those on low energy ration (p<0.01). The dry matter intake, irrespective of breed, was significantly higher (4.57% or 93.4 g per kgW
Performance;Carcass Characteristics;Lambs;Energy;Feedlot Ration
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