Beta-carotene supplementation of laying hen diets
The possibility of beta-carotene affecting production of hens or hatchability of eggs was studied over 252 d with diets based on white maize containing 0, 1.5, 6.75 or 15 mg added beta-carotene/kg. Egg production, food intake, food utilisation, egg weight, and egg specific gravity were not affected...
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Published in | British poultry science Vol. 25; no. 3; p. 349 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
England
01.01.1984
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Subjects | |
Online Access | Get more information |
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Summary: | The possibility of beta-carotene affecting production of hens or hatchability of eggs was studied over 252 d with diets based on white maize containing 0, 1.5, 6.75 or 15 mg added beta-carotene/kg. Egg production, food intake, food utilisation, egg weight, and egg specific gravity were not affected significantly by beta-carotene. Egg fertility, hatchability and final body weights of hens were also not significantly influenced. Reflectance measurements showed that dietary beta-carotene resulted in increased deposition and more intense pigmentation in the egg yolk. |
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ISSN: | 0007-1668 |
DOI: | 10.1080/00071668408454875 |