Effect of age and sex on carcass characteristics and internal organ weights of scavenging chickens and helmeted guinea fowls

• Main Authors: Mabel Tafadzwa Musundire, Tinyiko Edward Halimani, Michael Chimonyo
• Format: Article
• Language: English
• Published: Taylor & Francis Group 2018-01-01
• Series: Journal of Applied Animal Research
• Subjects: Guinea fowl; chicken; scavenging; carcass characteristics; internal organs; age
• Online Access: http://dx.doi.org/10.1080/09712119.2017.1411266

The objective of the study was to determine the effect of age and sex on carcass characteristics and internal organ weights in scavenging guinea fowls and chickens. Ninety-six scavenging birds, purchased from farmers, were used comprising 48 guinea fowls and 48 chickens from communal farmers. Guinea fowls comprised 25 females and 23 males, with 21 growers and 27 adults. Chickens had 18 females and 30 males with 19 growers and 29 adults. Guinea fowls had heavier body weight and relative hot carcass and cold dressed weight than chickens and which increased with age. Breast and wing relative weights were higher in guinea fowls. Chickens recorded the higher weight of leg and drumstick than guinea fowls. The neck, feet and head weights were heavier in chickens except for the back which was similar to guinea fowls. Chickens had significantly higher abdominal fat than guinea fowls. Relative weights of the heart, liver, kidney, lung and gizzard were higher in chickens. Relative total intestinal weight and lengths of total intestines, small and large intestines were higher in chickens than in guinea fowls. Relative lengths of the intestines decreased with age. Chickens and guinea fowls could have different capacities to utilize scavengeable feed resources.