Abstract
The study was conducted at the Bangladesh Livestock Research Institute (BLRI), Savar, Dhaka, Bangladesh with the objectives of comparing the body characteristics and body weight of three Indigenous chicken genotypes namely Common Desi, Hilly and Naked Neck. Of the four hundred and eighty nine birds analyzed the proportion of Common Desi, Naked Neck and Hilly chicken were 49.49, 24.95 and 25.56% respectively. The most predominant plumage color was reddish black (33.13%). Four types of shank colors were most frequently observed, i.e. white (39.87%), yellow (37.22%), black (20.04%) and mixed (2.87%). The earlobes were mainly reddish white (44.79%) followed by white (29.24%) and red (25.97%). The most predominant skin color was white (92.22%). Most birds had a single comb (96.12%). Hilly birds were heavier than the other Indigenous chicken groups (p < 0.05). The mature weight between Common Desi and Naked Neck did not differ significantly (p > 0.05) but significantly differed from that of Hilly chicken. In terms of shank length and circumference, there were no significant (p > 0.05) differences between Common Desi and Naked Neck chicken, but Hilly chicken had significant (p < 0.05) differences from both.
Highlights
Domestic chickens are believed to have originated in Southeast Asia (HILLEL et al, 2003)
The decreese in the genetic diversity of native chicken populations described in recent genetic studies has raised concern because the unique genotypes and traits of native populations are at risk of being lost, with a consequent threat to a well-established food source
The present results were in agreement with the findings by Duguma (2006) who reported that the average individual body weight of Ethiopian ecotypes, classified according to plumage color, at the age of puberty (20 weeks), varied in Horro (876 g), Tepi (822 g) and Jarso (663 g), respectively
Summary
Domestic chickens are believed to have originated in Southeast Asia (HILLEL et al, 2003). The decreese in the genetic diversity of native chicken populations described in recent genetic studies has raised concern because the unique genotypes and traits of native populations are at risk of being lost, with a consequent threat to a well-established food source This situation suggests that the management of native chicken genetic resources should be given greater priority. It can be assumed that local breeds contain the genes and alleles pertinent to their adaptation to particular environments and local breeding goals. Such local breeds are needed to maintain genetic resources permitting adaptation to unforeseen breeding requirements in the future and can serve as a source of research material
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