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Influence of age at entry and level of concentrate feeding on growth and carcass characteristics of feedlot-finished Tanzanian long-fat-tailed sheep

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dc.contributor.author Shirima, Eligy J. M.
dc.contributor.author Mtenga, Louis A.
dc.contributor.author Kimambo, Abiliza E.
dc.contributor.author Laswai, Germana H.
dc.contributor.author Mgheni, Dyness M.
dc.contributor.author Mushi, Daniel E.
dc.contributor.author Shija, Dismas S.
dc.contributor.author Safari, John G.
dc.date.accessioned 2023-08-16T09:33:41Z
dc.date.available 2023-08-16T09:33:41Z
dc.date.issued 2014
dc.identifier.citation Shirima E. J. M., Mtenga L. A., Kimambo A. E, Laswai, G.H., Mgheni D. M., Mushi D. E., Shija D. S. & Safari J.G. (2014). Influence of age at entry and level of concentrate feeding on growth and carcass characteristics of feedlot-finished Tanzanian long-fat-tailed sheep. Springer,Vol.46:5, 815–822. DOI 10.1007/s11250-014-0570-0 en_US
dc.identifier.issn 0049-4747
dc.identifier.uri http://repository.mocu.ac.tz/xmlui/handle/123456789/474
dc.description A full text from Community and Rural Development with DOI 10.1007/s11250-014-0570-0 en_US
dc.description.abstract A 4×3 factorial experiment was carried out to evaluate the effects of age at entry to feedlot (AEF) and levels of concentrate feeding (LCF) on body weight gain, feed utilization and killing out characteristics of Tanzanian long fat-tailed castrate sheep. The AEF points were 9, 12, 15 and 18 months, designated as AEF9, AEF12, AEF15 and AEF18, and the LCF were 50, 75 and 100 % of ad libitum concentrate intake designated as LCF50, LCF75 and LCF100, the last representing ad libitum concentrate intake with 10 % refusal rate. Grass hay as basal diet was offered ad libitum to each sheep. Daily feed intake and weekly live weight were record ed for a period of 84 days. Animals were slaughtered and carcass and non-carcass parameters were recorded. Dry matter intake (DMI) of hay decreased while DMI of concentrate increased (p<0.01) with increasing LCF. Daily gain in high level (LCF100) was 93.1 g/day, almost twofold higher than that in low level (LCF50) of feeding (39 g/day). Overall dressing percentage ranged from 40.7 to 46.5 % and increased with increasing AEF. The proportion of carcass bone decreased (p<0.05) with increasing AEF while that of fat increased (p<0.05) with increasing LCF. Age at entry × level of concentrate feeding interaction was detected for DMI, feed conversion ratio (FCR), slaughter body weight (SBW), muscle/bone ratio and bone (as % cold carcass weight (CCW)), but the effect was not regular. Entering fattening at 18th month seems too late, hence to get in the shortest time the highest output slaughter and carcass weights, fattening should start latest at 15 months. en_US
dc.language.iso en en_US
dc.publisher Springer en_US
dc.relation.ispartofseries Volume 46;5
dc.subject Concentrate en_US
dc.subject Feedlot en_US
dc.subject Growth en_US
dc.subject Slaughter characteristics en_US
dc.subject Long-fat-tailed sheep en_US
dc.title Influence of age at entry and level of concentrate feeding on growth and carcass characteristics of feedlot-finished Tanzanian long-fat-tailed sheep en_US
dc.type Article en_US


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