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Asian Journal of Animal and Veterinary Advances
  Year: 2018 | Volume: 13 | Issue: 3 | Page No.: 253-262
DOI: 10.3923/ajava.2018.253.262
 
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Effects of Strains and Temperature on Production Performance, Egg Qualities and Physiological Response of Laying Hens

Md. Rakibul Hassan , Md. Ataul Goni Rabbani , Shabiha Sultana and Nathu Ram Sarker

Abstract:
Background and Objective: Bangladesh imports parent and grandparent chick from abroad to meet its internal demand of day old commercial chick. The development of layer strain considering the existing environment is a long desire in the country. Therefore, the present experiment was undertaken to compare the performance, egg quality, blood properties and stress responses between the Bangladesh Livestock Research Institute (BLRI) developed layer strains and commercial layer strain under thermo-neutral and cyclic heat stress condition of Bangladesh. Methodology: A total of 720 ready to lay pullets were randomly assigned to a 3×2 factorial arrangement of treatments (6 replicate/treatment, 20 birds/replication) consisting of three layer strain (Shuvra, Shorna and Hyline white commercial layer strain) and two ambient temperatures (cyclic heat stress 25-35°C, thermo-neutral 20-21°C). Data were analyzed by two way ANOVA procedures of SAS and differences were determined by Duncan multiple range test (DMRT). Results: Results showed that body weight was significantly (p<0.05) increased in Shorna than that of Shuvra and commercial hens. The interaction between strain and temperature were not significantly influence the rate of egg production. The effect of strain on egg weight was significant (p<0.01) and thus increased egg mass production by the Shorna than that of commercial strain. A higher number of follicles were found in the Shorna strain than that of other two strains (p<0.05). When temperature changed from 21-35°C, ovarian follicle number was significantly reduced (p<0.05). Bird’s warm carcass weight and muscular pH were obtained higher in Shorna than that of Shuvra and commercial strain. But pH level of breast muscle was notably declined in heat stressed bird than that of thermo-neutral groups. Conclusion: Thus, the present results indicated that Shuvra and Shorna are comparable with the commercial strain, suggesting physiologically adaptable under existing environmental condition of Bangladesh.
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How to cite this article:

Md. Rakibul Hassan, Md. Ataul Goni Rabbani, Shabiha Sultana and Nathu Ram Sarker, 2018. Effects of Strains and Temperature on Production Performance, Egg Qualities and Physiological Response of Laying Hens. Asian Journal of Animal and Veterinary Advances, 13: 253-262.

DOI: 10.3923/ajava.2018.253.262

URL: https://scialert.net/abstract/?doi=ajava.2018.253.262

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