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Economic benefits of supplementing lambs with urea molasses blocks on ranges of Pakistan |
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M. Rafiq, J. K. Jadoon, K. Mahmood, M. A. Naqvi |
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| Abstract |
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Effects on feed intake, liveweight gain and economic benefits of supplementing lambs with urea molasses blocks, were studied. Forty eight crossbred lambs were divided into 6 groups and assigned randomly to grazing on native pasture(CONT) or along with supplements of Commercial ration(COM) and urea molasses blocks(UMBs) containing two levels of cement and calcium oxide as a binding agent. Analysis of variance revealed highly significant(p<0.01) differences in dry matter (DMI, g/day), crude protein(CI+PI, g/day) and metabolizable energy(MEI, Mj/day) intakes. Differences in liveweight gain(LWG, g/day), feed conversion ratio(FCR) and net economic benefit of supplementation were also highly variable. The intake of DM, CP and ME varied from 974 to 1002, 66-70 and 7.6-8.4 in lambs supplemented with UMBs, significantly(p<0.01) greater than 848, 52.5 and 5.6 in lambs supplemented with COM or FCR and net economic benefits(54.3; 57.8; 17.1 and 1.96; 2.4) in lambs supplemented with COM and UMB-2, were CONT or supplemented with UMB-1, UMB-3 and UMB-4 respectively. Factors responsible for differences in feed intake, liveweight gain and economic benefits, are discussed. |
| Keywords:
Ranges; UMBs; Feed Intake; Liveweight Gain Economic Benefits |
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