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Breeding for the Improvement of Indigenous Chickens of Bangladesh: Evaluation of Performance of First Generation of Indigenous Chicken

S. Faruque
Poultry production research Division, BLRI, Savar, Dhaka-1341

A.K.F.H. Bhuiyan
Department of Animal Breeding and Genetics, BLRI, Savar, Dhaka-1341

M.S.A. Bhuiyan
Department of Animal Breeding and Genetics, BLRI, Savar, Dhaka-1341

M.M. Rahman
Poultry production research Division, BLRI, Savar, Dhaka-1341

M.N. Islam
Poultry production research Division, BLRI, Savar, Dhaka-1341

Abstract/ Executive Summary:

Pure breeding is necessary for the conservation and improvement of indigenous chicken genetic resources. Present research is a part of the long-term selection program being undertaken to evaluate the performance and expected response to selection of first generation (G1) of three indigenous chicken genotypes under intensive management in Bangladesh. A total of 1439 day old chicks comprising of 3 genotypes namely Naked Neck (NN), Hilly (H) and non-descript Deshi (ND) were hatched for this study. In first generation (G1), selection was practiced on body weight at 8 and 16 weeks of age, on the basis of their breeding value. At 40 week of age, selection will be practiced on the basis of an index comprising the parameters of age at first egg (ASM), body weight (BW), egg production (EP) and egg weight (EW). At 8, 10 and 12 weeks of age, six birds from each genotype were slaughtered to analyze the meat yield traits. Data were analyzed in CRD by general linear model univariate procedure. Significantly highest body weight of day old chicks (28.65±0.12 g) and daily weight gain in all stages were found in H genotype than other two genotypes. Although there was significant difference in live weight between ages at slaughter, dressing percent (65.87-66.89%) of different ages was similar but was affected by genotype. Body weight at 8 weeks of age was expected to improve by 58.98 vs. 11.50; 81.56 vs. 40.91 and 53.81 vs. 15.82 g; respectively for ND, H and NN males and females. In terms of body weight and growth traits H genotype was superior and NN genotype was for dressing percentage. As a result of selection; chick weight, body weight at all stages increased and ASM reduced in first generation than foundation stock. These findings give an impetus for continuing the pure breeding research for more generations.

Keywords: Indigenous chicken, Generation, Performance, Selective breeding

Location: Experimental field of the Poultry production research division, BLRI

Start Date: 01-07-2011

End Date: 30-06-2012

Program Area: Variety and Species

Commodity: Chicken

Objectives:

i) To compare the productive and reproductive performances of first generation of 3 native genotypes under intensive management. ii) To select parental birds and breed them in an assortative design for the production of second generation birds; iii) To improve the genetic potentiality of indigenous chicken genotypes for selected economic trait(s) through successive generations of pure breeding.

Methodology:

Following interventions were taken: 1) Location and agro-climate 2) Formation of first generation (G1) from foundation stock (G0) 3) Selection of first generations (G1) birds. 4) General flock management 5) Vaccination 6) Lighting program 7) Slaughtering and carcass characteristics data 8) Data recording 9) Statistical analysis 10) Estimation of heritability (h2) 11) Prediction of expected selection response

Source of Information: BLRI. Proceedings of Annual Research Review Workshop, 2011-2012. Bangladesh Livestock Research Institute (BLRI), Savar, Dhaka-1341.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

In terms of body weight and growth responses at all stages of age, H genotype was superior and NN genotype was for dressing percentage. NN genotype was also found to have a higher survivability rate, reaching maturity earlier but attaining a lighter mature weight. Body weight increased at all stages in the first generation than in the foundation stock. All genotypes attained to sexual maturity on an average nine days earlier in the first generation than in the foundation stock. It is being expected that EP and EW will be increased if comparison is done at the same ages. These findings give an impetus for continuing the pure breeding research for more generations.

Knowledge Management: Report/Proceedings