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Growth Performance and Uniformity of Commercial Brown Layer Chicks

S. Haider
Scientific Officer, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh.

S. D. Chowdhury
Professor, Department of Poultry Science, Bangladesh .Agricultural University, Mymensingh-2202, Bangladesh.

Abstract/ Executive Summary:

Growth performance of commercial brown layer chicks (Shaver 579; n = 408) was studied in an open-sided house by feeding layer starter and layer grower diets during 0-17 weeks of age. The experimental period was divided into three phases: Phase I (0-4 weeks), Phase II (5-7 weeks) and Phase III (8-17 weeks). Both growth and feed consumption closely followed the standard data except during 10, 11, 12 weeks of age when the birds had to face some stresses. The target body weight was 1.4 kg which was achieved at proper age (17 weeks) by consuming feed almost similar to standard amount. Compensatory growth of chicks occurred during the later stage of growing period. The flock uniformity was 80% at 17 weeks. Livability of chicks was found to be excellent (99.3%) during the experimental period (0-17 weeks). It is suggested that despite some stresses, commercial brown layer chicks may achieve body weight and uniformity close to breeder’s standards when reared in an open-sided house.

Keywords: Growth, Uniformity, Commercial,Brown layer chicks

Location: BLRI, Saver

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Chicken

Objectives:

To address the information gap by monitoring the growth performance, uniformity and livability of the commercial brown layer strain (Shaver 579) in an open-sided house.

Methodology:

Birds and housing: Four hundred eight commercial brown layer chicks (Shaver, 579) were considered for comparison with the standard performance recommended by the breeder of the strain (Shaver 579 Layer Management Guide, 2005). The duration for the experiment was 17 weeks. During brooding period (0-4 weeks), an experimental room was used providing 0.5 sq.ft. to each bird. During 5 to 7 weeks, floor space for each bird was provided 0.7 sq.ft. After seven weeks to the point of transfer to the laying cage, four pens were used for rearing of chicks by providing 2.4 sq.ft. floor space to each bird.

Feeds and feeding: Chick starter and grower diet were procured from Aftab Bahumukhi Farms, Bazitpur, Kishorganj. All starter feed was in crumble form and supplied ad libitum to the birds for the first seven weeks. After seven weeks, birds were divided into three groups and fed grower diets of the same source according to size i.e. small, medium, and large.

Source of Information: Bang. J. Anim. Sci. 2010, 39(1&2) : 170 – 175 ISSN 0003-3588

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It may be concluded that growth performance and uniformity of Shaver 579 commercial growing chicks is achievable close to standards in open-sided house.

Knowledge Management: Journal