| Registro completo |
| Provedor de dados: |
89
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| País: |
Brazil
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| Título: |
Use of Betaine in Post-Hatch Feed for Broiler Chicks
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| Autores: |
Carvalho,FB
Stringhini,JH
Café,MB
Jardim Filho,RM
Chagas,GM
Oliveira,NF
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| Data: |
2020-01-01
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| Ano: |
2020
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| Palavras-chave: |
Delayed placement
Glucose
Histomorphometry
Poultry
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| Resumo: |
ABSTRACT Post-hatch delayed placement damages the physical and physiological development of broiler chicks. This study was designed to find adequate levels of betaine inclusion in pre-hatching and pre-starter feed, in order to minimize the negative effects of post-hatch delayed placement on broiler chicks. Newly-hatched chicks were allotted in a completely randomized design, with five treatments, five replicates of ten birds each. Five dietetic levels of betaine (control, 0.070, 0.130, 0.200 and 0.260%) were used in the pre-starter ration, offered to the chicks in the transporting box and during the pre-starter phase. Performance, yolk sac retraction, plasma glucose concentration, weight and histomorphometry of the small intestine were evaluated, after 24 hours of feed access and at 7 days of age. A metabolic trial was performed from seven to ten days of age. Betaine supplementation linearly influenced the chick’s ileum crypt depth after 24 hours in the transportation box. There was a quadratic effect, with an increase in feed intake up to 0.152% betaine supplementation. There was an improvement in the quality of the jejunum with betaine supplementation above 0.1%. The metabolizable coefficient of the ether extract was improved until reaching 0.163% of betaine supplementation. Betaine supplementation around 0.150% increases feed intake, the use of ether extract and interferes with the intestinal villi of chicks at seven days of age.
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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=S1516-635X2020000400316
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| Editor: |
Fundação APINCO de Ciência e Tecnologia Avícolas
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| Relação: |
10.1590/1806-9061-2020-1329
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Poultry Science v.22 n.4 2020
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| Direitos: |
info:eu-repo/semantics/openAccess
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