| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Avic.
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| País: |
Brazil
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| Título: |
Mixed crude glycerin in laying hen diets: live performance and egg quality and fatty acid profile
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| Autores: |
Duarte,CRA
Murakami,AE
Boso,KMO
Eyng,C
Ospina-Rojas,IC
Matumoto-Pintro,PT
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| Data: |
2014-12-01
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| Ano: |
2014
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| Palavras-chave: |
Excreta moisture
Eggs
Fatty acids
Glycerin
Glycerol
Lipid profile
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| Resumo: |
This study evaluated the performance and the quality and fatty acid profile of eggs from laying hens fed diets containing mixed crude glycerin (MCG; 80% vegetable fat + 20% animal fat). A total of 240 39-week-old Hy-Line W36 laying hens were distributed according to a completely randomized experimental design into six treatments consisting of graded MCG dietary inclusion levels (0, 1.5, 3.0, 4.5, 6.0, and 7.5%), with five replicates of eight birds each. Feed intake linearly decreased (p<0.05) with increasing MCG inclusion levels. The percentages of myristic, palmitic, and α-linolenic acids in the eggs linearly decreased as MCG dietary levels increased (p<0.05), while α-linoleic acid, polyunsaturated fatty acids (PUFA) and ω-6/ω-3 ratio linearly increased. Excreta moisture linearly increased with increasing levels of MCG inclusion (p<0.05). MCG may be included in up to 7.5% in layer feeds without impairing performance or egg quality, but levels up to 5.54% reduce SFA egg content. However, the inclusion of MCG in layer diets increases ω-6/ω-3 ratio in the eggs.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400003
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| Editor: |
Fundação APINCO de Ciência e Tecnologia Avícolas
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| Relação: |
10.1590/1516-635x1604351-358
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Poultry Science v.16 n.4 2014
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| Direitos: |
info:eu-repo/semantics/openAccess
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