Study on the Effects of Phytase on Palatability and Digestibility of Dog Food

Title ：Study on the Effects of Phytase on Palatability and Digestibility of Dog Food

Abstract: To evaluate the palatability and digestive effects of phytase-supplemented dog food, 0.03% phytase was added to dog food for the experimental group. Palatability and feeding digestibility trials were carried out on experimental dogs to determine the impacts of phytase-supplemented dog food on palatability, faecal characteristics and nutrient digestibility of dogs. The results showed that: ① There was no significant difference in palatability between the phytase-supplemented diet and the control diet (P>0.05). ② No digestive disorders such as loose stool or diarrhoea were observed in dogs fed the phytase-containing dog food, and the faecal score was 4, within the normal range. ③ The faecal water content, apparent digestibility of dry matter and apparent digestibility of crude protein in the control group were 67.00%, 76.31% and 77.82%, respectively. Compared with the control group, the faecal water content of dogs in the experimental group decreased by 5.16% (P>0.05), the apparent digestibility of dry matter increased by 3.72% (P<0.05), and the apparent digestibility of crude protein increased by 2.49% (P>0.05). In conclusion, phytase supplementation has no adverse effect on the palatability of dog food; dietary phytase can significantly improve the apparent dry matter digestibility in dogs and enhance feed utilization efficiency.

Keywords: phytase; dog food; palatability; digestibility

Authors: Dong Wenbin, Wang Wenhao, Li Hongmei, Zhang Ronghao, Yin Guozheng, Chen Jinfa, Liu Yaoqing

https://kns.cnki.net/kcms2/article/abstract?v=xC-_u-weiHvILEh8wiolhTpNYSN6RxXP_3G4DAKVgbjM9Ppu91AjQS04y_bMSzww7kwHX-J6sWuPAR7-4M1bhmooaS2JxWs4abQcOx0V2xfOXz5Rqgbc2mQ0ygjJ65fdbsk7kDXqN9Dlkuvzia461bR75wXhJoM2LyXkLVQXucM=&uniplatform=NZKPT