Daylength effects on stress and fear responses in broiler chickens
Heterophil (H) to lymphocyte (L) ratios and durations of tonic immobility (TI) were measured to assess stress and fear responses, respectively, in broiler chickens provided either 12 h of natural lighting (12L) or 12 h natural lighting and 12 h of supplementary lighting (24L). Birds illuminated 24L...
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| Format: | Article |
| Language: | English English |
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Asian-Australasian Association of Animal Production Societies
1998
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| Online Access: | http://psasir.upm.edu.my/id/eprint/50052/ http://psasir.upm.edu.my/id/eprint/50052/1/Daylength%20effects%20on%20stress%20and%20fear%20responses%20in%20broiler%20chickens.pdf http://psasir.upm.edu.my/id/eprint/50052/7/11-113.pdf |
| _version_ | 1848851446694412288 |
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| author | Idrus, Zulkifli Abdullah, Rasedee O., Nor Syaadah Mat Taib, Che Norma |
| author_facet | Idrus, Zulkifli Abdullah, Rasedee O., Nor Syaadah Mat Taib, Che Norma |
| author_sort | Idrus, Zulkifli |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Heterophil (H) to lymphocyte (L) ratios and durations of tonic immobility (TI) were measured to assess stress and fear responses, respectively, in broiler chickens provided either 12 h of natural lighting (12L) or 12 h natural lighting and 12 h of supplementary lighting (24L). Birds illuminated 24L had greater H/L ratios and TI durations than their 12L counterparts. Neither age, sex nor cage level had significant effect on TI reactions. |
| first_indexed | 2025-11-15T10:22:19Z |
| format | Article |
| id | upm-50052 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T10:22:19Z |
| publishDate | 1998 |
| publisher | Asian-Australasian Association of Animal Production Societies |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-500522024-08-05T07:03:28Z http://psasir.upm.edu.my/id/eprint/50052/ Daylength effects on stress and fear responses in broiler chickens Idrus, Zulkifli Abdullah, Rasedee O., Nor Syaadah Mat Taib, Che Norma Heterophil (H) to lymphocyte (L) ratios and durations of tonic immobility (TI) were measured to assess stress and fear responses, respectively, in broiler chickens provided either 12 h of natural lighting (12L) or 12 h natural lighting and 12 h of supplementary lighting (24L). Birds illuminated 24L had greater H/L ratios and TI durations than their 12L counterparts. Neither age, sex nor cage level had significant effect on TI reactions. Asian-Australasian Association of Animal Production Societies 1998 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/50052/1/Daylength%20effects%20on%20stress%20and%20fear%20responses%20in%20broiler%20chickens.pdf text en http://psasir.upm.edu.my/id/eprint/50052/7/11-113.pdf Idrus, Zulkifli and Abdullah, Rasedee and O., Nor Syaadah and Mat Taib, Che Norma (1998) Daylength effects on stress and fear responses in broiler chickens. Asian-Australasian Journal of Animal Sciences, 11 (6). pp. 751-754. ISSN 1011-2367; ESSN: 1976-5517 http://www.ajas.info/journal/view.php?number=19351 10.5713/ajas.1998.751 |
| spellingShingle | Idrus, Zulkifli Abdullah, Rasedee O., Nor Syaadah Mat Taib, Che Norma Daylength effects on stress and fear responses in broiler chickens |
| title | Daylength effects on stress and fear responses in broiler chickens |
| title_full | Daylength effects on stress and fear responses in broiler chickens |
| title_fullStr | Daylength effects on stress and fear responses in broiler chickens |
| title_full_unstemmed | Daylength effects on stress and fear responses in broiler chickens |
| title_short | Daylength effects on stress and fear responses in broiler chickens |
| title_sort | daylength effects on stress and fear responses in broiler chickens |
| url | http://psasir.upm.edu.my/id/eprint/50052/ http://psasir.upm.edu.my/id/eprint/50052/ http://psasir.upm.edu.my/id/eprint/50052/ http://psasir.upm.edu.my/id/eprint/50052/1/Daylength%20effects%20on%20stress%20and%20fear%20responses%20in%20broiler%20chickens.pdf http://psasir.upm.edu.my/id/eprint/50052/7/11-113.pdf |