Exogenous enzymes in broilers fed diets: performance

被引:10
作者
Arruda Barbosa, Nei Andre [1 ]
Sakomura, Nilva Kazue [1 ]
Bonato, Melina Aparecida [1 ]
Hauschild, Luciano [1 ]
Oviedo-Rondon, Edgar [2 ]
机构
[1] Univ Estadual Paulista UNESP, Fac Ciencias Agr & Vet, Dept Zootecnia, BR-14884900 Jaboticabal, SP, Brazil
[2] N Carolina State Univ, Raleigh, NC 27695 USA
来源
CIENCIA RURAL | 2012年 / 42卷 / 08期
关键词
poultry; phytase; amylase; protease; xilanase; PHYTASE SUPPLEMENTATION; NUTRIENT DIGESTIBILITY; CHICKS; PHOSPHORUS; PROTEASE; CORN;
D O I
10.1590/S0103-84782012000800027
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The experiment was conducted to evaluate the effect of enzyme efficiency in diets with and without nutrient reduction on the performance of broilers. Thousand and hundred forty male broiler chicks (Cobb 500 (R)) were distributed in a completely randomized design with 4 treatments in a factorial 2x2 (two diets with different nutrient densities, with and without enzyme) with 8 replications of 45 birds. The diets were: positive control (normal) and a negative control (with a reduction of 4.3% and 4.5% of metabolizable energy, 16.7% and 17.7% of calcium and 35% and 42.7% of phosphorus, in initial and growth phases, respectively). The enzyme supplementation consisted of a combination of phytase enzyme (100g r(-1)) and amylase, xylanase and protease (500g r(-1)). It was evaluated the performance of birds in phases 1 to 21 and 1 to 42 days old. In the total period. the birds fed with negative control dim with added enzyme had feed intake (5.97%), body weight (8.47%), body weight gain (8.64%) and feed conversion (2.92%) higher (P<0.05) than compared to birds fed with negative control diet without enzyme supplementation. In addition, birds fed with control diet with added enzyme showed negative feed intake, average live weight and body weight gain similar (P>0.05) to the group fed with positive control diet with or without enzyme. It is concluded that the addition of exogenous enzymes in diets with reduced metabolizable energy, calcium and phosphorus, providing a feed intake, average live weight and weight gain similar to a diet with adequate levels for broiler.
引用
收藏
页码:1497 / 1502
页数:6
相关论文
共 23 条
[11]  
NAGASHIRO C, 2007, C APINCO SANT SP AN, P307
[12]   Age-related influence of a cocktail of xylanase, amylase, and protease or phytase individually or in combination in broilers [J].
Olukosi, O. A. ;
Cowieson, A. J. ;
Adeola, O. .
POULTRY SCIENCE, 2007, 86 (01) :77-86
[13]  
Opalinski M., 2006, ARCH VET SCI MED, V11, P31
[14]   THYROID-FUNCTION, GROWTH-HORMONE, AND ORGAN GROWTH IN BROILERS DEFICIENT IN PHOSPHORUS [J].
PARMER, TG ;
CAREW, LB ;
ALSTER, FA ;
SCANES, CG .
POULTRY SCIENCE, 1987, 66 (12) :1995-2004
[15]  
Rostagno HS, 2005, COMPOSICAO ALIMENTOS
[16]   Effect of Phytase Supplementation in Diets on Nutrient Digestibility and Performance in Broiler Chicks [J].
Santos, F. R. ;
Hruby, M. ;
Pierson, E. E. M. ;
Remus, J. C. ;
Sakomura, N. K. .
JOURNAL OF APPLIED POULTRY RESEARCH, 2008, 17 (02) :191-201
[17]  
SARCINELLI M.F., 2007, UFES B TECNICO
[18]  
SAS INSTITUTE, 2003, SAS US GUID STAT
[19]  
Schang M. J., 2003, Nutritional biotechnology in the feed and food industries. Proceedings of Alltech's 19th Annual Symposium. Beyond the tornado: natural technologies, the calm before the storm, Lexington, Kentucky, USA, 11-14 May 2003, P163
[20]  
Teixeira M, 2007, THESIS U FEDERAL RUR