Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hens
This study was to assess the impact of permanent or temporary restricted feeding on laying hen production traits, physiology, and egg quality. Two hundred and forty individually housed ISA Brown hens were monitored across 2 phases, assigned to 3 treatments: ad libitum feeding (ALF), temporary restri...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-09-01
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| Series: | Animal Nutrition |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405654523000495 |
| _version_ | 1827803620865736704 |
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| author | Doreen O. Anene Yeasmin Akter Peter C. Thomson Peter Groves Cormac J. O'Shea |
| author_facet | Doreen O. Anene Yeasmin Akter Peter C. Thomson Peter Groves Cormac J. O'Shea |
| author_sort | Doreen O. Anene |
| collection | DOAJ |
| description | This study was to assess the impact of permanent or temporary restricted feeding on laying hen production traits, physiology, and egg quality. Two hundred and forty individually housed ISA Brown hens were monitored across 2 phases, assigned to 3 treatments: ad libitum feeding (ALF), temporary restricted feeding (TRF) and permanent restricted feeding (PRF), n = 80 hens per treatment. In Phase 1 (P1), 22 to 40 weeks, the TRF and PRF hens were offered 115 g of feed daily. In Phase 2 (P2), 41 to 46 weeks, the TRF hens were transitioned to ALF status while the ALF and PRF hens remained as in P1. From 35 to 40 weeks, eggs were collected once weekly from 15 hens per treatment and assessed for differences in albumen, yolk, and shell variables. At 45 weeks, 10 hens each from the ALF and PRF groups were euthanized and differences in organ characteristics were assessed. In P1, feed intake, feed to egg conversion ratio and body weight (BW) change were lower (P < 0.01), while albumen height and Haugh unit were higher (P < 0.01) in both PRF and TRF hen treatments compared to hens allocated the ALF treatment. In P2, TRF and ALF hens had a higher egg production and egg mass than PRF (P < 0.01) than ALF. Body weight change in P2 was higher in TRF and similar in both ALF and PRF, while feed intake and feed conversion ratio were higher in TRF followed by ALF and least in the PRF treatment group (P < 0.01). At 45 weeks ALF hens had a greater abdominal fat pad weight and fatty liver haemorrhagic syndrome lesion score compared to PRF. Restricting hens to 115 g of feed per day from point of lay restrained BW, improved feed conversion ratio and albumen quality and reduced abdominal fat pad deposition and clinical signs of fatty liver haemorrhagic syndrome in individually housed laying hens. |
| first_indexed | 2024-03-11T20:57:57Z |
| format | Article |
| id | doaj.art-b0625523f0fb4494bb0db60477e61277 |
| institution | Directory Open Access Journal |
| issn | 2405-6545 |
| language | English |
| last_indexed | 2024-03-11T20:57:57Z |
| publishDate | 2023-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Animal Nutrition |
| spelling | doaj.art-b0625523f0fb4494bb0db60477e612772023-09-30T04:55:10ZengKeAi Communications Co., Ltd.Animal Nutrition2405-65452023-09-0114141151Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hensDoreen O. Anene0Yeasmin Akter1Peter C. Thomson2Peter Groves3Cormac J. O'Shea4Department of Animal Science, School of Biosciences, University of Nottingham, Loughborough, LE12 5RD, United Kingdom; School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Camden, NSW 2570, Australia; Corresponding author.School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Camden, NSW 2570, AustraliaSydney School of Veterinary Science, Faculty of Science, Poultry Research Foundation, University of Sydney, Camden, NSW 2570, AustraliaSydney School of Veterinary Science, Faculty of Science, Poultry Research Foundation, University of Sydney, Camden, NSW 2570, AustraliaDepartment of Animal Science, School of Biosciences, University of Nottingham, Loughborough, LE12 5RD, United Kingdom; Department of Bioveterinary and Microbial Sciences, Technological University of the Shannon: Midlands Midwest, Dublin Road, Athlone, Co Westmeath, N37 HD68, Ireland; Corresponding author.This study was to assess the impact of permanent or temporary restricted feeding on laying hen production traits, physiology, and egg quality. Two hundred and forty individually housed ISA Brown hens were monitored across 2 phases, assigned to 3 treatments: ad libitum feeding (ALF), temporary restricted feeding (TRF) and permanent restricted feeding (PRF), n = 80 hens per treatment. In Phase 1 (P1), 22 to 40 weeks, the TRF and PRF hens were offered 115 g of feed daily. In Phase 2 (P2), 41 to 46 weeks, the TRF hens were transitioned to ALF status while the ALF and PRF hens remained as in P1. From 35 to 40 weeks, eggs were collected once weekly from 15 hens per treatment and assessed for differences in albumen, yolk, and shell variables. At 45 weeks, 10 hens each from the ALF and PRF groups were euthanized and differences in organ characteristics were assessed. In P1, feed intake, feed to egg conversion ratio and body weight (BW) change were lower (P < 0.01), while albumen height and Haugh unit were higher (P < 0.01) in both PRF and TRF hen treatments compared to hens allocated the ALF treatment. In P2, TRF and ALF hens had a higher egg production and egg mass than PRF (P < 0.01) than ALF. Body weight change in P2 was higher in TRF and similar in both ALF and PRF, while feed intake and feed conversion ratio were higher in TRF followed by ALF and least in the PRF treatment group (P < 0.01). At 45 weeks ALF hens had a greater abdominal fat pad weight and fatty liver haemorrhagic syndrome lesion score compared to PRF. Restricting hens to 115 g of feed per day from point of lay restrained BW, improved feed conversion ratio and albumen quality and reduced abdominal fat pad deposition and clinical signs of fatty liver haemorrhagic syndrome in individually housed laying hens.http://www.sciencedirect.com/science/article/pii/S2405654523000495Restricted feedingAlbumen qualityFatty liver haemorrhagic syndromeAbdominal fatLaying henBody weight |
| spellingShingle | Doreen O. Anene Yeasmin Akter Peter C. Thomson Peter Groves Cormac J. O'Shea Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hens Animal Nutrition Restricted feeding Albumen quality Fatty liver haemorrhagic syndrome Abdominal fat Laying hen Body weight |
| title | Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hens |
| title_full | Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hens |
| title_fullStr | Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hens |
| title_full_unstemmed | Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hens |
| title_short | Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hens |
| title_sort | effect of restricted feeding on hen performance egg quality and organ characteristics of individual laying hens |
| topic | Restricted feeding Albumen quality Fatty liver haemorrhagic syndrome Abdominal fat Laying hen Body weight |
| url | http://www.sciencedirect.com/science/article/pii/S2405654523000495 |
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