The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages
This study was conducted to investigate the effects of cage stocking density on egg yield, some egg quality traits and plumage condition in laying hens. Eighteen weeks-old 264 ISA-Brown pullets were divided into four cage density groups. The densities were 2 000, 1 000, 667 and 500 cm2 per hen (by a...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2008-08-01
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| Series: | Czech Journal of Animal Science |
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| Online Access: | https://cjas.agriculturejournals.cz/artkey/cjs-200808-0005_the-effects-of-space-allowance-on-egg-yield-egg-quality-and-plumage-condition-of-laying-hens-in-battery-cages.php |
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| author | M. Sarica S. Boga U.S. Yamak |
| author_facet | M. Sarica S. Boga U.S. Yamak |
| author_sort | M. Sarica |
| collection | DOAJ |
| description | This study was conducted to investigate the effects of cage stocking density on egg yield, some egg quality traits and plumage condition in laying hens. Eighteen weeks-old 264 ISA-Brown pullets were divided into four cage density groups. The densities were 2 000, 1 000, 667 and 500 cm2 per hen (by allocating 1, 2, 3 and 4 hens per cage; floor area 40 × 50 cm) with 48, 30, 24 and 21 replicate cages, totally 123 three-tier battery cages. During the experimental period from 18 to 53 weeks of age, all birds were provided illumination for 16 hours a day. The hens were fed a diet containing 11.7 MJ ME/kg and 180 g CP during the period of 18 to 40 weeks of age and 11.3 MJ ME/kg and 170 g CP during the period of 41 to 54 weeks of age. Feed and water were available for ad libitum. Egg yield, mortality, live weights at 50% egg production age and at the end of experiment, pecking related mortalities, some egg quality traits and plumage condition were recorded weekly. Hen-housed egg production, egg mass, viability, and live weights were significantly decreased by higher densities. Most of the egg quality traits were not affected by cage densities. Pecking related mortalities increased in cage densities of 667 cm2 and 500 cm2 per hen compared to the other densities (P < 0.05) while plumage scores were higher in all body parts of hens kept in cages of 2 000 cm2 and 1 000 cm2 densities compared to the higher densities. The results showed that brown laying hens should be kept in cages having 1 000-2 000 cm2 densities in order to improve their welfare and performance. |
| first_indexed | 2024-04-10T08:27:18Z |
| format | Article |
| id | doaj.art-68256bb673ad4e59a6fcc0ccc8ad5682 |
| institution | Directory Open Access Journal |
| issn | 1212-1819 1805-9309 |
| language | English |
| last_indexed | 2024-04-10T08:27:18Z |
| publishDate | 2008-08-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Czech Journal of Animal Science |
| spelling | doaj.art-68256bb673ad4e59a6fcc0ccc8ad56822023-02-23T03:32:35ZengCzech Academy of Agricultural SciencesCzech Journal of Animal Science1212-18191805-93092008-08-0153834535310.17221/349-CJAScjs-200808-0005The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cagesM. Sarica0S. Boga1U.S. Yamak2Agricultural Faculty, Department of Animal Science, Ondokuz Mayis University, Kurupelit, Samsun, TurkeyAgricultural Faculty, Department of Animal Science, Ondokuz Mayis University, Kurupelit, Samsun, TurkeyAgricultural Faculty, Department of Animal Science, Ondokuz Mayis University, Kurupelit, Samsun, TurkeyThis study was conducted to investigate the effects of cage stocking density on egg yield, some egg quality traits and plumage condition in laying hens. Eighteen weeks-old 264 ISA-Brown pullets were divided into four cage density groups. The densities were 2 000, 1 000, 667 and 500 cm2 per hen (by allocating 1, 2, 3 and 4 hens per cage; floor area 40 × 50 cm) with 48, 30, 24 and 21 replicate cages, totally 123 three-tier battery cages. During the experimental period from 18 to 53 weeks of age, all birds were provided illumination for 16 hours a day. The hens were fed a diet containing 11.7 MJ ME/kg and 180 g CP during the period of 18 to 40 weeks of age and 11.3 MJ ME/kg and 170 g CP during the period of 41 to 54 weeks of age. Feed and water were available for ad libitum. Egg yield, mortality, live weights at 50% egg production age and at the end of experiment, pecking related mortalities, some egg quality traits and plumage condition were recorded weekly. Hen-housed egg production, egg mass, viability, and live weights were significantly decreased by higher densities. Most of the egg quality traits were not affected by cage densities. Pecking related mortalities increased in cage densities of 667 cm2 and 500 cm2 per hen compared to the other densities (P < 0.05) while plumage scores were higher in all body parts of hens kept in cages of 2 000 cm2 and 1 000 cm2 densities compared to the higher densities. The results showed that brown laying hens should be kept in cages having 1 000-2 000 cm2 densities in order to improve their welfare and performance.https://cjas.agriculturejournals.cz/artkey/cjs-200808-0005_the-effects-of-space-allowance-on-egg-yield-egg-quality-and-plumage-condition-of-laying-hens-in-battery-cages.phpcage space allowanceegg yieldfeather scoreplumage conditionmortalityegg quality |
| spellingShingle | M. Sarica S. Boga U.S. Yamak The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages Czech Journal of Animal Science cage space allowance egg yield feather score plumage condition mortality egg quality |
| title | The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages |
| title_full | The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages |
| title_fullStr | The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages |
| title_full_unstemmed | The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages |
| title_short | The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages |
| title_sort | effects of space allowance on egg yield egg quality and plumage condition of laying hens in battery cages |
| topic | cage space allowance egg yield feather score plumage condition mortality egg quality |
| url | https://cjas.agriculturejournals.cz/artkey/cjs-200808-0005_the-effects-of-space-allowance-on-egg-yield-egg-quality-and-plumage-condition-of-laying-hens-in-battery-cages.php |
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