Carcass traits of the naked-neck, dwarf and normal strains of indigenous Tswana chickens under an intensive management system

Abstract

The aim of this study was to evaluate carcass characteristics of the naked neck, normal and dwarf strains of indigenous Tswana chickens (ITC). A total of 88 (naked neck: 25 females and 9 males, normal: 14 females and 19 males and dwarf: 11 females and 10 males) ITC were used for the study. The carcass traits evaluated included live weight at 20 weeks of age, carcass weight, dressing percentage, primal cuts (breast, back, drumstick, thigh, wing, neck and shank) weight, giblets (gizzard, liver and heart) weight and feather weight. Sex had a significant influence on carcass characteristics of ITC and males had higher live weight, carcass weight, dressing percentage, primal cuts weight and giblets weight than their age-matched female counterparts. Generally, naked neck males and females had the highest live weight, carcass weight, dressing percentage, primal cuts weight and giblets weight and dwarf males and females had the lowest weights in those parameters. The naked neck strain thus shows the greatest promise for possible selection and development of meat type chicken of ITC.

Comparative study of indigenous chickens on the basis of their health and performance

“…The normal feathered and frizzled-naked neck had similar ( P > 0.05) neck weights. This observation agrees with the findings of Kgwatalala et al., (2013) , who recorded a significantly higher neck weight for naked neck compared with the normal feathered birds. The main effect of the naked neck gene is the reduction of the whole feather coverage especially in the neck which is approximately 20 to 30% ( Galal, 2000 ).…”

Quality Characterization of Giblets of Indigenous Indian Chicken Breeds

“…These findings were very well matched with the findings reported by Kgwatalala et al (2013), Ockerman et al (2000), Daros et al (2005) and Spooncer (1988) in different poultry species. Overall they reported the yield of edible by-products for chickens was from 5 to 6 percent of the live weight.…”

“…The commercial strain (Cobb-400) showed highest carcass weight because it was a fast growing strain and particularly meant for the broiler production and higher weight gain. The similar pattern was reported by Debata et al (2012) and Kgwatalala et al (2013) on carcass weight of commercial breeds like Black Rock, Red Cornish and Vanaraja breed of chicken.…”

Comparative Growth Performance, Carcass Characteristics and Meat Quality of Local Horro and Exotic Cockerels of Tropical Origin Fed Growers Diet

“…Edible offal which includes gizzard, heart, liver and skin are important component of chicken meat. The higher liver, heart, gizzard, skin and total edible offal weight exhibited by the Kuroiler than that of Horro and Koekoek was in line with the finding of earlier reports on egg type dual purpose male chicken and synthetic breeds [17] [18] [39]. The genetic correlation between body weight and the weight of internal organs is responsible for the higher liver, heart, gizzard and skin weight recorded by the Kuroiler breed.…”