eprintid: 6159
rev_number: 14
eprint_status: archive
userid: 30
dir: disk0/00/00/61/59
datestamp: 2012-10-01 05:33:18
lastmod: 2016-10-19 08:09:24
status_changed: 2012-10-01 05:33:18
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@cgiar.org
creators_name: Nalini Kumari, N
creators_name: Ramana Reddy, Y
creators_name: Blummel, M
creators_name: Nagalakshmi, D
creators_name: Monika, T
creators_name: Reddy, B V S
creators_name: Reddy, C R
icrisatcreators_name: Reddy, B V S
icrisatcreators_name: Reddy, C R
affiliation: S. V. Veterinary University (Hyderabad)
affiliation: ILRI (Patancheru)
affiliation: ICRISAT (Patancheru)
country: India
title: Growth performance and carcass characteristics of growing ram lambs fed sweet sorghum bagasse-based complete rations varying in roughage-to-concentrate ratios
ispublished: pub
subjects: s1.4
subjects: s2.17
divisions: D4
crps: crp1.4
full_text_status: restricted
keywords: Sweet sorghum bagasse – Roughage-to-concentrate ratio – Growth performance – Carcass traits – Lambs
abstract: Different roughage-to-concentrate ratios of sweet sorghum bagasse (SSB) (a by-product of the biofuel industry)-based complete diets were assessed. Twenty four growing Nellore × Deccani ram lambs aged about 3 months (average body wt., 10.62 ± 0.25 kg) were randomly allotted to four complete rations (CR) varying in roughage-to-concentrate ratios viz. 60:40 (CR-I), 50:50 (CR-II), 40:60 (CR-III) and 30:70(CR-IV) for a period of 180 days. The feed intake was comparable among the lambs fed different experimental complete diets. Average daily weight gain (in grams) was 77.31 ± 4.90, 81.76 ± 5.16, 85.83 ± 2.83 and 86.30 ± 3.25, and feed conversion ratio (in kilograms of feed per kilogram gain) averaged 11.42 ± 0.68, 10.57 ± 0.64, 10.17 ± 0.37 and 9.96 ± 0.38 in ram lambs fed CR-I, CR-II, CR-III and CR-IV rations, respectively. Statistically, differences in daily weight gain and feed conversion ratio among the lambs fed four experimental rations were not significant (P > 0.05). The cost per kilogram gain was significantly (P < 0.01) higher in ram lambs fed CR-IV and CR-III rations compared to CR-I ration, and it was comparable between CR-I and CR-II rations. Dressing percentage averaged 44.90 ± 0.15, 42.57 ± 0.72, 43.67 ± 0.16 and 44.42 ± 0.76 for the respective diets. No significant difference and trend was observed in preslaughter weight, empty body weight, carcass weights, dressing percentage, wholesale cuts and edible and non-edible portions of experimental animals. Similarly, no significant variation could be seen in bone and meat yield (in per cent) and their ratios in various wholesale cuts among the dietary treatments. The roughage-to-concentrate ratio did not affect the chemical composition of meat; however, the fat content of meat was linearly increased with increase in the proportion of concentrate in the diets. The results of the experiment indicated that SSB can be included at 60 % level in the complete diet for economical mutton production from growing Nellore × Deccani ram lambs.
date: 2013
date_type: published
publication: Tropical Animal Health and Production
volume: 45
number: 2
publisher: Springer 
pagerange: 649-655
id_number: 10.1007/s11250-012-0272-4
refereed: TRUE
issn: 1573-7438
official_url: http://dx.doi.org/10.1007/s11250-012-0272-4
citation:   Nalini Kumari, N and Ramana Reddy, Y and Blummel, M and Nagalakshmi, D and Monika, T and Reddy, B V S and Reddy, C R  (2013) Growth performance and carcass characteristics of growing ram lambs fed sweet sorghum bagasse-based complete rations varying in roughage-to-concentrate ratios.  Tropical Animal Health and Production, 45 (2).  pp. 649-655.  ISSN 1573-7438     
document_url: http://oar.icrisat.org/6159/7/Nalini_Revised_RC_postprint_2012.pdf
document_url: http://oar.icrisat.org/6159/1/TAHP_Growth_2012.pdf