Y. P. Chen
College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, Peoples of Republic China
W. G. Duan
Animal Metabolism Laboratory of KDN Biotech Group, Qingdao, Shandong, Peoples of Republic China
L. L. Wang
Animal Metabolism Laboratory of KDN Biotech Group, Qingdao, Shandong, Peoples of Republic China
S. L. Zhang
Animal Metabolism Laboratory of KDN Biotech Group, Qingdao, Shandong, Peoples of Republic China
Y. M. Zhou
College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, Peoples of Republic China
ABSTRACT
A study was conducted to investigate the effects of thermostable phytase supplementation on the growth performance and nutrient digestibility of broilers for 42 d. 1-day-old Arbor Acres chicks with similar initial body weight were randomly divided into 3 treatments consisting 6 pens of 20 chicks per pen. The control group was given maize-soybean meal basal diet and the other two groups were fed the basal diet including either 500 U ordinary phytase/kg diet or 500 U thermostable phytase/kg diet. The results indicated that broilers given diets supplemented with thermostable phytase have increased body weight, body weight gain and feed intake than these fed basal diet (p<0.05). However, the same effect was only noted for body weight in ordinary phytase-supplemented group (p<0.05). Birds fed diet supplemented with thermostable phytase had enhanced crude protein utilization when compared with these given basal diet (p<0.05) but the same effect was not observed for broilers fed ordinary phytase-supplemented diet. As expected, dietary phytase supplementation significantly enhanced nitrogen-corrected apparent metabolizable energy of broilers (p<0.05) and this effect was more pronounced in the thermostable phytase-supplemented group. The results suggested that phytase supplementation, especially thermostable phytase supplementation, can improve the growth performance and nutrient utilization of broilers.
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How to cite this article
Y. P. Chen, W. G. Duan, L. L. Wang, S. L. Zhang and Y. M. Zhou, 2013. Effects of Thermostable Phytase Supplementation on the Growth Performance and
Nutrient Digestibility of Broilers. International Journal of Poultry Science, 12: 441-444.
DOI: 10.3923/ijps.2013.441.444
URL: https://scialert.net/abstract/?doi=ijps.2013.441.444
DOI: 10.3923/ijps.2013.441.444
URL: https://scialert.net/abstract/?doi=ijps.2013.441.444
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