Evaluation of carcass quality in village chickens
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Date
2012
Authors
Simfukwe, Soft
Journal Title
Journal ISSN
Volume Title
Publisher
University of Zambia
Abstract
The objective of the present study was to evaluate carcass quality of two commonly reared types
of village chickens in Zambia, namely Guinea Fowl Spotted (GFS) and Naked Neck (NN). Ten
breast muscles from each village chicken type were excised after slaughter as per established
standards. The left halves were used for determination of shear force while the right halves were
used for determination of pH and colour.
The results showed that there were no significant differences (P>0.05) in all the parameters
measured between the two types of village chickens. The breast muscle pH of the GFS and N N
chickens was 5.62 and 5.70, respectively. These values were within the normal ranges as the
birds were slaughtered under similar and controlled conditions and therefore their post-mortem
glycolysis was controlled. In terms of colour, the GFS recorded the L * value of 54.24 while N N
recorded a value of 52.52. Similarly, no differences were found because of the improved water
holding capacity (WHC) of the muscles which influences colour of the meat by affecting the
reflectance properties of the muscles. The N N recorded a shear force value of 1.81 kg while the
GFS recorded a value of 1.83 kg thereby showing the same level of tenderness. It is concluded
that carcass quality o f the two strains is the same.
Description
Student Project Report
Keywords
Veterinary toxicology , Poultry , Broiler(Chickens)-Zambia