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Laying performance, immune response and antioxidant properties of hens segregating for naked neck and frizzle genes under low ambient temperature

Author

Listed:
  • Moataz Fathi

    (Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
    Department of Poultry Production, Faculty of Agriculture, Ain Shams University, Cairo, Egypt)

  • Ibrahim Al-Homidan

    (Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia)

  • Gamal Rayan

    (Department of Poultry Production, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
    College of Agricultural Sciences and Food, King Faisal University, Hofuf, Saudi Arabia)

  • Salah El-Safty

    (Department of Poultry Production, Faculty of Agriculture, Ain Shams University, Cairo, Egypt)

  • Tarek Ebeid

    (Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
    Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt)

  • Osama Abou-Emera

    (Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
    Agriculture Research Center, Animal Production Research Institute, Giza, Egypt)

Abstract

Major genes could be introgressed into laying hens to attenuate heat stress. However, under cold and/or moderate ambient temperature, these genes might possess different behaviour. The main objective of this study was to evaluate laying performance, immune response, and antioxidant status of native laying hens segregating for naked neck (Na) and frizzle (F) genes under low ambient temperature. Five genotypes were studied: homozygous naked neck (NaNaff), heterozygous naked neck (Nanaff), homozygous frizzle (nanaFF), heterozygous frizzle (nanaFf), and normally feathered (nanaff). The hens were raised under temperature range 22.2-16.7°C. No adverse effect due to ambient temperature was detected in laying performance for naked neck genotypes. Significant decrease in egg weight was recorded in nanaFF genotype compared to the other genotypes leading to significant decrease in egg mass. Significant improvement in shell thickness was associated with Na and F genes. NaNaff genotype had a significantly higher eggshell strength compared to nanaff. Furthermore, Na and F genes improved cellular mediated immune responsiveness, whereas this improvement did not extend to humoral immunity. Birds carrying F gene in homozygous state had a higher total antioxidant activity compared to the remaining genotypes. It could be concluded that the presence of Na and F genes in laying hens raised under low ambient temperature significantly increased shell thickness and, in turn, improved shell strength. Moreover, they greatly enhanced cellular immunity, particularly in heterozygous naked neck status.

Suggested Citation

  • Moataz Fathi & Ibrahim Al-Homidan & Gamal Rayan & Salah El-Safty & Tarek Ebeid & Osama Abou-Emera, 2019. "Laying performance, immune response and antioxidant properties of hens segregating for naked neck and frizzle genes under low ambient temperature," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 64(5), pages 216-225.
    • Handle: RePEc:caa:jnlcjs:v:64:y:2019:i:5:id:221-2018-cjas
    DOI: 10.17221/221/2018-CJAS
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    References listed on IDEAS

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    1. Moataz Fathi & Tarek Ebeid & Gamal Rayan & Salah El-Safty & Osama Abou-Emera, 2018. "Genetic differences in eggshell ultrastructural properties of Saudi native chicken breeds kept at high ambient temperatures," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 63(9), pages 363-370.
    2. Z. Ledvinka & L. Zita & M. Hubený & E. Tůmová & M. Tyller & P. Dobrovolný & M. Hruška, 2011. "Effect of genotype, age of hens and K/k allele on eggshell quality," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(5), pages 242-249.
    3. E. Tůmová & M. Englmaierová & Z. Ledvinka & V. Charvátová, 2011. "Interaction between housing system and genotype in relation to internal and external egg quality parameters," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(11), pages 490-498.
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