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Approaches to Develop Broiler Sire & Dam Lines from Available Genetic Resources

Dr. Md. Ashraf Ali
Professor
Department of Poultry Science, Bangladesh Agricultural University, Mymensingh -2202, Bangladesh,

Abstract/ Executive Summary:

In female lines age at 50% production was at 23-24 weeks; while peak production was at 27 weeks of age which was 5 weeks and 7 weeks earlier in FLW but delayed in FLC by 1week and 2 weeks respectively. The male lines were lower peak egg production (65-81%), while female lines were higher peak egg production (83-89%). The livability improved at a scale of 5-11 % by selection in early growing (o-6 weeks) and13-22 % during growing period (7-19 weeks).While the birds in laying period become more adjustable with the environment through selection. The white feather broiler produced through line crosses of MLW×FLW attained the highest live weight, 1203g with FCR 1.67, while the colored strain produced through line crosses of FLC×MLC attained 759g with FCR 1.9 at 6 weeks. The livability was 98-99 with dressing meat yield of 75.00 vs.73% in white & colored strain. The results revealed that selection improved the performance of male and female line parents and line the crosses of white & colored strain of broiler at marketing. However, the selection should be continued for more generations with more lines to get better growth to compete with the imported strains.

Keywords: Genetic resources, Broiler, Body weight

Location: Mymensingh

Start Date: 01-07-2012

End Date: 30-06-2013

Program Area: Variety and Species

Commodity: Poultry

Objectives:

To develop broiler sire and dam lines from available genetic resources

Methodology:

A selection study was conducted with 1800 one-day chicks of male line-white (MLW), male line colored (MLC) and female line-white (FLW) and female line colored (FLC) parents base population to evaluate their progress as a broiler sire & dam line parents for the production of day-old broiler chicks. The birds were wing banded & brooded with electric brooder for 5 weeks of age separately. They were reared on littered floor up to 18 weeks of age and then transferred to individual laying cages. The male lines were selected on 5th week body weight, while female lines were selected for moderate growth at 6 weeks of age and finally at 35 weeks of age on index value using 6 weeks body weight, up to 35 weeks egg number and 32 weeks egg weight. Fifty percent females of female lines were selected for the production of next generation on the basis of higher score. The selection was done for three generations except MLC which was done for two generations.

Source of Information: BAU Research proceedings, Vol.23, 2013, PP.59-60

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results revealed that selection improved the performance of male and female line parents and line the crosses of white & colored strain of broiler at marketing. However, the selection should be continued for more generations with more lines to get better growth to compete with the imported strains.

Knowledge Management: Report/Proceedings