| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Avic.
|
| País: |
Brazil
|
| Título: |
EFFECTS OF THE COMBINATION OF NON-PHYTATE PHOSPHORUS, PHYTASE AND 25-HYDROXYCHOLECALCIFEROL ON THE PERFORMANCE AND MEAT QUALITY OF BROILER CHICKENS
|
| Autores: |
Ren,L
Zuo,J
Li,G
Zheng,L
Zhang,Z
Ye,H
Xia W,I
Feng,D
|
| Data: |
2015-09-01
|
| Ano: |
2015
|
| Palavras-chave: |
Broiler
Non-phytate phosphorus
Performance
Phytase
25-hydroxycholecalciferol
|
| Resumo: |
ABSTRACTThis experiment was conducted to evaluate the combination effect of low dietary non-phytate phosphorus (NPP) concentrations, phytase (PHY) levels, and 25-hydroxycholecalciferol (25-OH-D3) levels on the growth performance and meat quality of broilers. Two levels of NPP, two levels of PHY, and two levels of 25-OH-D3 resulted in a 2�2�2 factorial arrangements, with eight treatments (TRT). The birds on TRT 1-4 were fed diet 1 (NRC NPP was reduced by 0.1) and the birds on TRT 5-8 were fed with diet 2 (NRC NPP was reduced by 0.2). Each diet was mixed with different levels PHY and 25-OH-D3. Performance and meat quality parameters were measured. Results showed that during entire experiment the most advantageous effects were obtained with TRT 3 (NRC NPP reduced by 0.1 + 600 U/kg phytase + 34.5�g/kg 25-OH-D3) and TRT 4 (NRC NPP reduced by 0.1 + 600 U/kg phytase + 69�g/kg 25-OH-D3). The lowest body weight gain (BWG) and feed intake(FI) were observed with TRT 5 (NRC NPP reduced by 0.2 + 300 U/kg phytase + 34.5�g/kg 25-OH-D3). Lowering NRC NPP by 0.1 to 0.2 significantly reduced weight gain (WG) (p< 0.05) and FI (p< 0.05) during the starter phase (ST), while during grower phase (GF) lowering NRC NPP by 0.1 to 0.2 did not affect WG (p>0.05) and produced small decrease in FI. BWG, FI and feed conversion ratio were not influenced (p>0.05) by different PHY or 25-OH-D3 levels. In addition, the meat color, pH, and shear force were not affected by the different NPP, PHY or 25-OH-D3levels.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300371
|
| Editor: |
Fundação APINCO de Ciência e Tecnologia Avícolas
|
| Relação: |
10.1590/1516-635x1703371-380
|
| Formato: |
text/html
|
| Fonte: |
Brazilian Journal of Poultry Science v.17 n.3 2015
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
|
