Indigenous naked neck chicken: a valuable genetic resource for Bangladesh

Production objectives and trait preferences of village poultry producers of Ethiopia: implications for designing breeding schemes utilizing indigenous chicken genetic resources

“…Indigenous chickens were rated to have superior merits with regard to traits such as disease tolerance, tolerance to cold and heat, ability to escape from predators, scavenging, and broody behaviors and hatchability of eggs which are important in adaptation to the village environment; and those traits, such as taste of egg and meat, affecting consumption preference and consequently market value. A review by Islam and Nishibori (2009) indicated that in Bangladesh and many other developing countries, the meat and eggs of indigenous chickens is highly preferred for its taste and suitability for special dishes resulting in even higher market prices for these chickens than their exotic counterpart. Earlier studies on adoption of poultry breeds in Ethiopia (Teklewold et al 2006) indicated that these trait categories were among the principal factors determining farmers’ adoption of improved chicken breeds.…”

Estimating farmers' preferences in selection of indigenous chicken genetic resources using non-market attributes

“…Most of these traits may have a direct or indirect influence on the marketability of chickens. Apparently, the naked neck genotype has been identified to be more heat tolerant and disease resistant in the locally existing conditions (Islam and Nishibori, 2009). Rearing of IC is a relevant tool in the eradication of poverty in the rural areas (Ondwassy et al, 2000;Yoo, 2005); therefore, the low level of disease resistance would have significant financial losses as a result of mortalities (Kondombo et al, 2003;Biswas et al, 2006).…”

Determination of Polymorphisms in Pituitary Genes of the Native Afghani Naked Neck Chicken

“…The Na gene is known to be associated with heat tolerance and Na/na birds are superior in carcass yield, laying rate, mean egg weight, eggshell strength, and egg mass (Merat, 1990;Njenga, 2005). Furthermore, in high ambient temperatures and unfavorable environments, the dominant Na allele positively affects breast weight and growth rate, resulting in minimal loss of body weight during heat stress, high levels of heat shock protein 70 (HSP70), good feed conversion ratio, desirable carcass traits, and reduced effects of high ambient temperatures on fertility (Njenga, 2005;Islam and Nishibori, 2009). Thus, the Naked Neck chicken is a valuable breed for hot climates, including Afghanistan, and its characteristics can be further genetically investigated to enhance traits.…”