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Comparative Performance Evaluation and Genetic Potential of Frizzle and Deshi Dwarf Chicken Under Intensive
Bishrat Farhana Amy1, Md Nazmul Haque1, Md Mohan Mia1
1Department of Genetics and Animal Breeding, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet, Bangladesh.
Objectives:
The objectives of this study were to evaluate and compare the phenotypic and both production and reproduction performance of two indigenous chicken genotypes-frizzle and deshi dwarf-reared under intensive management system. The aim of this study was to identify the superior genotypes which are suitable for intensive management rearing system.
Methods:
This work was carried out to compare the morphometric characteristics, production and reproductive performance between frizzle and deshi dwarf chickens under intensive management conditions at Sylhet Agricultural University. A total of 62 chickens, 32 frizzle and 30 deshi dwarf chickens, were monitored. Statistical analyses (SAS) were performed to compare the performance between genotypes.
Results:
The mean of beak length, chest girth, keel length, wing length, body length and shank length of frizzle and deshi dwarf were 3.5 ± 0.37 and 2.32 ± 0.38, 26.1 ± 2.8 and 28.55 ± 3.8, 8.26 ± 1.12 and 8.66 ± 0.9, 25.25 + 2.5 and 22.5 ± 2.15, 41.12 ± 4.15 and 30.25 ± 2.6, 6.3 ± 1.03 and 4.75 ± 1.04 cm, respectively. The mean live weights of frizzle and deshi dwarf chickens were 965.35 ± 26.45 and 1073.7 ± 20.46 g at 20 weeks of age, respectively. The average mean of the day-old chick weight and egg weight, age of first laying of frizzle and deshi dwarf chickens were 28.47 ± 0.1 and 30.43 ± 0.16, 39.82 ± 0.12 and 40.60 ± 0.13 g, 23.25 ± 0.21 weeks and 20.95 ± 0.20 weeks, respectively. The average mean of frizzle and deshi dwarf chickens' fertility, and hatchability were 82% and 91%, 78% and 86%. The weight of hens at first egg laying was also positively correlated with their age of both chickens. The study revealed a high positive correlation (p < 0.05) in frizzle chickens between wing length and shank length (0.98) and in deshi dwarf chickens between body length and shank length (0.97). Additionally, strong positive correlations were found between the weights of chickens at 16 and 20 weeks, with correlation values of 0.96 for frizzle and 0.87 for deshi dwarf chickens.
Conclusion:
These findings are expected to assist in making decision for improving the efficiency and sustainability of both chickens in intensive management systems. Comparatively, deshi dwarf chickens are more promising breed under intensive rearing system.
