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Early heat acclimation during incubation improves Japanese quail performance under summer conditions |
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| Authors: | Farghly Mohamed Mahrose Khalid Abougabal Mohammed Taboosha Mossad Ali Reham |
| Affiliation: | 1.Department of Poultry Production, Agriculture College, Asyut University, Asyut, 71516, Egypt ;2.Animal and Poultry Production Department, Faculty of Technology and Development, Zagazig University, Zagazig, 44511, Egypt ;3.Department of Animal Production, Agriculture College, Al-Azher University, Cairo, Egypt ;4.Animal and Poultry Production Department, Agriculture and Natural Resources College, Aswan University, Aswan, Egypt ; |
| Abstract: | Effects of exposing quail eggs to high temperature on the heat tolerance ability and productivity of birds were investigated. Four groups of 600 fertile eggs were randomly selected; the first group was incubated under 37.5 °C and the hatched chicks were reared under a gradual decrease in temperature from 35 to 24 °C (Control). The second group was exposed to 39.1 °C for 2 h/day during 4–14 days of embryogenesis and the hatched chicks were reared under a gradual decrease in temperature from 35 to 24 °C. The third group was incubated under 37.5 °C and the hatched chicks were exposed to 39?±?1 °C for 2 h/day during 4–14 days of age. The fourth group was exposed to 39?±?1 °C for 2 h during 4–14 days of embryogenesis and the hatched chicks were exposed to 39?±?1 °C for 2 h/day during 4–14 days of age. The temperature applied changed (P? |
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