Study on the productive and reproductive performance of 3 native genotypes of chicken under intensive management

To improve the native chicken, a total of 75 males and 750 females was reared from the 3 types of chicken namely, Naked neck (NN), Hilly and Non descript deshi (ND) which have been collected from different parts of the country. The number of each Naked neck (NN), Hilly and Non descript deshi (ND) type of chicken in the foundation stock genotypes were 275 (250 females and 25 males). Multiplication of the established birds has already been started and the present stock will be increased as required for future selective breeding work. These foundation stocks were raised under confinement with standard management practices and vaccination. They were supplied the nutrient as per recommendation. All productive, reproductive and egg quality parameters at 38 weeks of age were studied. The results indicate that the percentage of hatchability on fertile eggs and set eggs and also dead in shell (embryonic mortality) were significantly different (P<0.01) among genotypes. No significant difference (P>0.05) was observed in age at sexual maturity, fertility, dead in germ, normal chicks and abnormal chicks among the 3 native genotypes. Significantly difference (P<0.01) was found in body weight among the 3 native genotypes at 38 weeks of age. Egg weight was similar in NN (42.94) and ND (42.08) and lowest in Hilly (40.25). No significant difference (P>0.05) was found in morning egg production rate, egg production, feed intake and survivability. But significantly (P<0.01) highest afternoon egg production was found in NN (32.68%) and lowest and similar in Hilly (27.23%) and ND (28.31%). The egg quality traits; egg weight, yolk index and shell thickness were significantly different (P<0.05), but the other egg quality traits were not significantly different (P>0.05) among 3 genotypes. The native germplasm is very much potential in context of disease resistant and genetic variability under the existing harsh environment. So we can use these for future breeding program to improvement and upgrading the native genotypes and exotic one.

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Journal of the Bangladesh Agricultural University, 03, 1
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 Record created 2018-09-20, last modified 2020-10-28

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