The effect of temperature and humidity index on egg-laying and hatching parameters in Japanese quail
Abstract
The objective was to measure the effect of temperature–humidity index (THI) on egg-laying and hatching parameters. Quails were randomly transferred to two cage blocks at 20.55 ± 0.05 °C and 52.25 ± 0.68% relative humidity (RH), accepted as 66 THI group. One cage block was transferred to the next room at 16.15 ± 0.13 °C and 70.77 ± 0.38% RH considered as 61 THI group. In the second stage of the study, the cage block previously accepted as 61 THI group was considered as to 69 THI group by rising up the temperature to 21.97 ± 0.18 °C. The group previously considered as 66 THI group was accepted as 76 THI group by rising up the temperature to 28.06 ± 0.02 °C. Feed consumption and egg weight were significantly decreased, in 69 and 76 THI groups. Daily egg production was lower in 61 and 66 THI groups than that in 69 THI group. In 76 THI group, shell weight and yolk height were decreased. High THI caused negative effects on feed consumption, egg weight, egg quality, and feed conversion ratio.
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Published In
Canadian Journal of Animal Science
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History
Received: 4 July 2024
Accepted: 3 November 2024
Accepted manuscript online: 8 November 2024
Version of record online: 8 January 2025
Copyright
© 2025 The Author(s). Permission for reuse (free in most cases) can be obtained from copyright.com.
Data Availability Statement
Data are held in the School of Agriculture, Department of Animal Science at the Selçuk University (Konya, Turkey). Queries to access the data should be made through the corresponding author.
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Authors
Author Contributions
Funding acquisition: HBÇ
Investigation: HBÇ
Methodology: HBÇ
Project administration: HBÇ
Validation: HBÇ
Visualization: HBÇ
Writing – original draft: HBÇ
Writing – review & editing: HBÇ
Competing Interests
The authors declare there are no competing interests.
Funding Information
Scientific Projects Coordinating and Financing Office (BAP), Selçuk University (Konya, Turkey): 22401145
The project was financially supported by Scientific Projects Coordinating and Financing Office (BAP), Selçuk University (Konya, Turkey). Project no: 22401145.
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H.B. Çiftci. The effect of temperature and humidity index on egg-laying and hatching parameters in Japanese quail. Canadian Journal of Animal Science.
e-First
https://doi.org/10.1139/cjas-2024-0084
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