Effect of strain, sex and rearing system on carcass and fat yield of Naked Neck, Ovambo and Potchefstroom Koekoek chickens

DOI: 10.18805/ijar.B-944    | Article Id: B-944 | Page : 1171-1175
Citation :- Effect of strain, sex and rearing system on carcass and fat yield of Naked Neck, Ovambo and Potchefstroom Koekoek chickens.Indian Journal Of Animal Research.2020.(54):1171-1175
T. Mutibvu, M. Chimonyo and T.E. Halimani tmutibvu@gmail.com
Address : Animal and Poultry Science, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, P. Bag X01, Scottsville 3209, Pietermaritzburg, South Africa.
Submitted Date : 13-03-2018
Accepted Date : 23-09-2018

Abstract

Meat and fat yield influence the profitability of modern commercial poultry production. This study investigated the effect of strain, sex and rearing system on carcass and fat yields of 3 slow-growing chicken strains. Two hundred and eighty-eight Potchefstroom Koekoek, Ovambo and Naked Neck chickens, weighing 1710 ± 308.8 g, were allocated to 4 free-range pens and 4 housed pens. Body (BW), carcass (CW), dressed (DW), cut, giblet, fat pad (AFP) weights were determined after 4 weeks. Analysis of variance (ANOVA) was conducted in SAS. Strain influenced (P<0.05) thigh, neck and giblet weight. Males were heavier (P<0.05), yielding heavier cuts and pancreases but lighter AFP than females. Ovambos yielded the heaviest portions among the 3 strains. Free-range birds experienced crop, gizzard hypertrophy and pancreatic atrophy. Further research could focus on fatty acid composition of meat from free-range systems to establish potential implications on heart-related health conditions.

Keywords

Abdominal fat Carcass Chickens Free-range Sex Strain.

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