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Study was conducted on twelve uncastrated Kooka lambs about 6-7 month of age kept under intensive management system at Livestock Experiment Station, Faculty of Animal Husbandry and Veterinary Sciences, SAU, Tandojam. Animals were divided into four group i.e., A, B, C and D, where group A was treated as control and fed ration supplemented with 12% crude protein. While, group B, C and D were supplied ration containing crude protein concentration 14, 16 and 18%. During study, initial body weight observed on fortnightly, final body weight, feed consumption, feed conversation ratio and economics. The average initial live body weight was noted as 22.7 in group A, 22.3-B, 22.7-C and 22.3 kg/lamb in group D. Further, the results showed that highest live body weight was recorded in group C (40.0±1.1kg/lamb) followed by group D (36.0±0.85), B (35.0±0.8) and A (32.0±0.59), respectively. Feed consumption of lambs in over all experimental period was recorded; the lambs in group C consumed feed 188.0 kg/lamb, group B: 213.7, group A: 250.3, while lambs in group D ( fed 18% CP) consumed highest feed 278.0 kg/lamb. Feed conversation ratio of Kooka lambs of group C was found to be most efficient i.e., 4.7:1, followed by group B-6.1:1 group A-7.8:1 and group D-7.85:1. Economic evaluation of experiment showed that the total cost of lambs in groups A, B, C and D was Rs. 7150, 7039, 6808 and 7340 per lamb which generated a total income of Rs. 7800, 8000, 8500 and 7900 per lamb with a net profit of Rs. 650, 961, 1692 and 560 per lamb, respectively. It was concluded that Kooka lambs fed ration containing 16% CP and 70% TDN gained highest significantly body weight, with FCR and generated net profit Rs. 1692 per animal than other groups.
[IMTIAZ HUSSAIN RAJA ABBASI, HAKIM ALI SAHITO, FARZANA ABBASI, DILPAT RAI MENGHWAR, NIAZ ALI KAKA AND MUHAMMAD IQBAL SANJRANI (2014); Impact of Different Crude Protein Levels on Growth of Lambs under Intensive Management System Int. J. of Adv. Res. 2 (4). 0] (ISSN 2320-5407). www.journalijar.com
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