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  1. Asian Journal of Animal and Veterinary Advances
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  3. 309-315
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Asian Journal of Animal and Veterinary Advances

Year: 2018 | Volume: 13 | Issue: 4 | Page No.: 309-315
DOI: 10.3923/ajava.2018.309.315

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Authors


Lamiaa Mostafa  Radwan

Lamiaa Mostafa Radwan

LiveDNA: 20.8095

Mahmoud Yousef Mahrous

Country: Egypt

Neima Koutb  Alsenosy

Neima Koutb Alsenosy

LiveDNA: 20.21959

Mohamed Ibrahim  El Sabry

Mohamed Ibrahim El Sabry

LiveDNA: 20.21958

Keywords


  • UCP
  • Myogenin
  • Heat stress
  • genes expression
  • carcass
Research Article

Interaction Between Heat Stress and Early Age on Muscle Development and Related to Gene Expression in Two Strains of Broilers Chickens

Lamiaa Mostafa Radwan Lamiaa Mostafa  Radwan's LiveDNA, Mahmoud Yousef Mahrous, Neima Koutb Alsenosy Neima Koutb  Alsenosy's LiveDNA and Mohamed Ibrahim El Sabry Mohamed Ibrahim  El Sabry's LiveDNA
Background and Objective: The global warming is a hot topic for poultry scientists because of its negative influence on the quantity and the quality of poultry production. This study was conducted to investigate the influence of heat stress on Myogenin and uncoupling protein (UCP) genes expression and some carcass traits in two strains of broilers. Materials and Methods: This study was divided into two separate experiments, which were conducted at the same time. In the both experiments, chicks were exposed to 24°C (control) or 2 h/day at 2-7 days of age and against exposed to 40°C or 3 h/day at 33-34 days of age (treated), while chicks were fed a starter diet contained 23 and 25% crude protein in first and second experiments, respectively. At days 4 and 35 of age, samples were collected to determine the gene expression using qRT-PCR. At slaughter, carcass traits were measured. The Myogenin gene which responsible for the formation of muscle tissues is severely affected by heat stress which resulted in a depression in carcass and muscles weight. So, from a practical point of view it’s an important to compensate this accursed depression by raising the protein level in broiler diets. Results: The results showed that body weight, carcass, breast muscle relative weights of Cobb were significantly heavier compared to Ross. In general, the gene expression of both Myogenin and UCP genes were negatively influenced by heat stress, however, the increase in the protein (percentage) mitigated delirious heat stress effect, in both strains. Conclusion: Increasing the protein percentage may be used to alleviate the influence of heat stress and maintain the high yield of broilers.
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How to cite this article

Lamiaa Mostafa Radwan, Mahmoud Yousef Mahrous, Neima Koutb Alsenosy and Mohamed Ibrahim El Sabry, 2018. Interaction Between Heat Stress and Early Age on Muscle Development and Related to Gene Expression in Two Strains of Broilers Chickens. Asian Journal of Animal and Veterinary Advances, 13: 309-315.

DOI: 10.3923/ajava.2018.309.315

URL: https://scialert.net/abstract/?doi=ajava.2018.309.315

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