Title: Inheritance of growth and production traits in sex linked dwarf chicken in a laying cycle of 64 weeks
Abstract: The juvenile growth and production performance upto 64 weeks of age was evaluated in sex linked dwarf chicken utilizing the data on 894 chicks for juvenile traits and 212 birds for production traits. The mean fertility percentage was 82.14±2.14 and the hatchability percentage was 96.28±1.19 on fertile eggs set and 83.24±2.82 on total eggs set, respectively. The mean body weights at 4 and 6 weeks of age were 454.08±0.11 and 844.93±0.17 g, respectively and the mean shank length was 70.60±0.05 mm at 6 weeks. The body weights ranged from 1946.29±2.18 g at 20 weeks to 2820.89±3.85 gat 64 weeks of age in dwarf female breeders. The egg weights ranged from 46.30±0.04 gat 28 weeks to 60.87±0.05 g at 64 weeks of age. The part period egg production upto 40 weeks of age was 79.10±0.15 and the annual egg production up to 64 weeks of age was 165.48±0.25 in dwarf broiler breeders. The heritability estimates were moderate to high for body weights, low to high for egg weight and low for egg production traits. The correlation coefficient (0.96) between 4 and 6 week body weight was significantly (P ≤ 0.01) high and positively correlated indicating the strong association between the traits. The correlations of body weights with egg weights were positive, while with egg production were negative. The results reveal that the dwarf chicken can be further improved with respect to economic traits.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 5
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