Vidya, B. and Ramana Reddy, Y. and Srinivasa Rao, D. (2012) Effect of supplementation of concentrate to sweet sorghum (Sorghum bicolor L. Moench) bagasse leaf residue silage on performance and carcass characteristics in native sheep. Online Journal of Animal and Feed Research, 2 (4). pp. 332-339.
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Abstract
The effect of supplementation of concentrate at different levels to sweet sorghum leaf residue (SSBLR) silage on the performance, and carcass characteristics was studied using Nellore growing ram lambs in a 120 day growth trial. A randomized design was applied with groups of seven growing ram lambs (14.05±0.61) and age (4 months), blocked by weight, allocated to one of four treatments; SSBLR silage ad lib (R-1), SSBLR silage + concentrate 170 g (R-2), SSBLR silage + concentrate 225 g (R-3) and SSBLR silage + concentrate 280 g (R-4). At the end of growth trial five representative lambs from each group were slaughtered to study the carcass characteristics and meat quality. The CP NDF and ADF content of SSBLR silage was 7.48, 71.81 and 46.75 per cent, respectively. The average daily gain (ADG) of ram lambs fed ration R-4 were significantly (P<0.01) higher than those fed R-1 and R-2 ration, but the value was comparable with the R-3 ration. The total DMI (g/d) was significantly (P<0.01) higher in lambs fed R-2, R-3 and R-4 rations compared to R-1 ration but DMI (g/d or % b.wt.) from SSBLR silage was not influenced by the level of concentrate supplementation. Negative FCR was recorded in lambs fed sole SSBLR silage and FCR was improved with supplementation of concentrate from R-2 to R-4 rations. Significant difference (P<0.05) in FCR was observed between lambs fed R-2 and R-3, R-4 rations but there was no significant difference between the lambs fed R-3 and R-4 rations. The lambs fed sole SSB silage lost their body weight of 2.14 kg during experimental period resulting in negative ADG and negative FCR. Supplementation of concentrate at 280 g to SSBLR silage resulted in significantly lower cost/kg gain than the other rations. Carcass weight and dressing percentage was linearly (P<0.01) increased as the proportion of concentrate increased in the diet. Supplementation of concentrate at different levels did not significantly influence the per cent whole sale cuts, yield of visceral organs and proportion of meat, bone and fat in whole carcass and chemical composition of meat. The results of the present study indicated that supplementation with energy and protein rich feeds to SSBLR was necessary and concentrate supplementation at 280 g to SSBLR silage found to be optimum for better growth rate, feed efficiency and meat quality in growing Nellore ram lambs.
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Animal Nutrition, C.V.Sc, Rajendranagar, Hyderabad |
| Subjects: | Plant Production Animal Husbandary > Live Stock |
| Divisions: | Sorghum |
| Depositing User: | Mr. SanatKumar Behera |
| Date Deposited: | 30 Aug 2012 05:35 |
| Last Modified: | 30 Aug 2012 05:36 |
| Official URL: | http://www.ojafr.ir/main/index.php?option=com_cont... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/7602 |
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