Does sex influence the impact of dietary vitD3 and UVB light on performance parameters and welfare indicators of broilers?
Investigations were carried out to determine whether sex could influence the impacts of dietary vitamin D3 in IU/kg at either 4,000 alone (HD) or at 1,000 combined with ultraviolet B (UVB) light (LDU) and UVB light only on broiler performance and welfare. Three-hundred 1-day (d)-old Ross 308 broiler...
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De Gruyter
2024-12-01
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| Series: | Open Agriculture |
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| Online Access: | https://doi.org/10.1515/opag-2022-0363 |
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| author | Ogbonna Amarachi Chijioke Mabelebele Monnye Asher Lucy Chaudhry Abdul |
| author_facet | Ogbonna Amarachi Chijioke Mabelebele Monnye Asher Lucy Chaudhry Abdul |
| author_sort | Ogbonna Amarachi Chijioke |
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| description | Investigations were carried out to determine whether sex could influence the impacts of dietary vitamin D3 in IU/kg at either 4,000 alone (HD) or at 1,000 combined with ultraviolet B (UVB) light (LDU) and UVB light only on broiler performance and welfare. Three-hundred 1-day (d)-old Ross 308 broiler chicks were wing-tagged and allocated to 6 treatment groups, each with 5 replicated pens containing 10 broilers per pen in a 3 (HD, LDU, UVB) × 2 (males and females) factorial design. Output lamps (24 W 12% UVB D3, 55 cm) were installed in the centre of the pen 50 cm above the centre of the pen to provide UVB light (intensity: 28.12 µW/cm2; wavelength: 280–315 nm) for the broilers in all the treatment groups but the lamps were filtered in the HD and LDU groups. The birds were monitored for growth performance and welfare, as indicated by their feather and gait scores. At 42 days of age, selected birds were individually weighed and dissected for determining meat yield, GIT and bone morphometrics and vitamin D status. The dietary vitD3 and sex interacted (P < 0.05) for carcass yield, whereas sex influenced all the parameters measured. The UVB and female birds had lower BW (P < 0.05), lighter meat yields (P < 0.05), better feathering and walking ability (P < 0.05) and inferior bone traits (P < 0.05) compared to their counterparts. Although none of the treatments improved growth alongside welfare indicators of broilers, the results suggest some beneficial effects of UVB light on welfare and the potential to support early life feeding and grow-out periods of commercial broilers when housed indoors. |
| format | Article |
| id | doaj-art-dfd3f94f08a5427eae27d164ff1ea47e |
| institution | Kabale University |
| issn | 2391-9531 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Agriculture |
| spelling | doaj-art-dfd3f94f08a5427eae27d164ff1ea47e2025-01-02T06:03:31ZengDe GruyterOpen Agriculture2391-95312024-12-019129708210.1515/opag-2022-0363Does sex influence the impact of dietary vitD3 and UVB light on performance parameters and welfare indicators of broilers?Ogbonna Amarachi Chijioke0Mabelebele Monnye1Asher Lucy2Chaudhry Abdul3Agriculture Building, School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne, NE1 7RU, United KingdomDepartment of Agriculture and Animal Health, College of Agriculture and Environmental Sciences, University of South Africa, Johannesburg, South AfricaAgriculture Building, School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne, NE1 7RU, United KingdomAgriculture Building, School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne, NE1 7RU, United KingdomInvestigations were carried out to determine whether sex could influence the impacts of dietary vitamin D3 in IU/kg at either 4,000 alone (HD) or at 1,000 combined with ultraviolet B (UVB) light (LDU) and UVB light only on broiler performance and welfare. Three-hundred 1-day (d)-old Ross 308 broiler chicks were wing-tagged and allocated to 6 treatment groups, each with 5 replicated pens containing 10 broilers per pen in a 3 (HD, LDU, UVB) × 2 (males and females) factorial design. Output lamps (24 W 12% UVB D3, 55 cm) were installed in the centre of the pen 50 cm above the centre of the pen to provide UVB light (intensity: 28.12 µW/cm2; wavelength: 280–315 nm) for the broilers in all the treatment groups but the lamps were filtered in the HD and LDU groups. The birds were monitored for growth performance and welfare, as indicated by their feather and gait scores. At 42 days of age, selected birds were individually weighed and dissected for determining meat yield, GIT and bone morphometrics and vitamin D status. The dietary vitD3 and sex interacted (P < 0.05) for carcass yield, whereas sex influenced all the parameters measured. The UVB and female birds had lower BW (P < 0.05), lighter meat yields (P < 0.05), better feathering and walking ability (P < 0.05) and inferior bone traits (P < 0.05) compared to their counterparts. Although none of the treatments improved growth alongside welfare indicators of broilers, the results suggest some beneficial effects of UVB light on welfare and the potential to support early life feeding and grow-out periods of commercial broilers when housed indoors.https://doi.org/10.1515/opag-2022-0363broilerdietary vitamin d3 ultraviolet-b lightgrowth performancefeather score, walking ability |
| spellingShingle | Ogbonna Amarachi Chijioke Mabelebele Monnye Asher Lucy Chaudhry Abdul Does sex influence the impact of dietary vitD3 and UVB light on performance parameters and welfare indicators of broilers? Open Agriculture broiler dietary vitamin d3 ultraviolet-b light growth performance feather score, walking ability |
| title | Does sex influence the impact of dietary vitD3 and UVB light on performance parameters and welfare indicators of broilers? |
| title_full | Does sex influence the impact of dietary vitD3 and UVB light on performance parameters and welfare indicators of broilers? |
| title_fullStr | Does sex influence the impact of dietary vitD3 and UVB light on performance parameters and welfare indicators of broilers? |
| title_full_unstemmed | Does sex influence the impact of dietary vitD3 and UVB light on performance parameters and welfare indicators of broilers? |
| title_short | Does sex influence the impact of dietary vitD3 and UVB light on performance parameters and welfare indicators of broilers? |
| title_sort | does sex influence the impact of dietary vitd3 and uvb light on performance parameters and welfare indicators of broilers |
| topic | broiler dietary vitamin d3 ultraviolet-b light growth performance feather score, walking ability |
| url | https://doi.org/10.1515/opag-2022-0363 |
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