| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Avic.
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| País: |
Brazil
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| Título: |
Performance and Carcass Yield of Broilers Fed Crude Glycerin at Differing Inclusion Levels
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| Autores: |
Broch,J
Henz,J
Nunes,R
Eyng,C
Savaris,V
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| Data: |
2018-12-01
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| Ano: |
2018
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| Palavras-chave: |
By-products
Fat deposition
Litter quality
Protein deposition
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| Resumo: |
ABSTRACT This experiment was conducted to evaluate the effect of crude glycerin at differing inclusion levels on performance and carcass characteristics of broilers and litter moisture. 960 broilers of 21-42 days of age were used in a completely randomized design with six crude glycerin inclusion levels (0, 3, 6, 9, 12, 15%), with eight replicates containing 20 broiler chickens per experimental unit. There was a quadratic effect (p<0.05) for weight gain, feed intake and feed:gain ratio from 21 to 42 days of age. Higher levels of crude glycerin in diets increased (40.24%, p<0.05) the litter moisture and reduced (6.04%, p<0.05) the viability of of the birds. There were no effects (p>0.05) on carcass yield, breast, or liver percentages. However, there was an increase (6.17%, p<0.05) in leg yield and a decrease in (p<0,05, 7.05%) the drumstick yield. For the wing yield and abdominal fat, a quadratic effect (p<0.05) was observed. The protein and fat deposition rates, as well as the dry matter content of the carcass, showed a quadratic effect (p<0.05) due to the inclusion levels of crude glycerin. Crude glycerin may be used in broiler diets from 21 to 42 days, at up to 6% without harming the performance of the broilers, the yield and carcass quality, litter moisture, and the viability of broilers. It is recommended that crude glycerin can be fed at 5.63% from 21 to 42 days, while for lower feed conversion it is recommended that the level of 3.72% is used.
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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=S1516-635X2018000400797
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| Editor: |
Fundação APINCO de Ciência e Tecnologia Avícolas
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| Relação: |
10.1590/1806-9061-2017-0611
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Poultry Science v.20 n.4 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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