Effects of Compound Acidifier on pH and Digestive Enzymatic Activities in Digestive Tracts of Broilers

XIAO Qin; SHEN Yiru; ZHANG Shan; CHEN Jie; SHI Shourong

doi:10.3969/j.issn.1006-267x.2015.08.026

Chinese Journal of Animal Nutrition >

2015 , Vol. 27 >Issue 8: 2527 - 2533

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.08.026

Molecular Nutrition

Effects of Compound Acidifier on pH and Digestive Enzymatic Activities in Digestive Tracts of Broilers

XIAO Qin ,
SHEN Yiru ,
ZHANG Shan ,
CHEN Jie ,
SHI Shourong

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1. Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou 225125, China;
2. Shanghai Meinong Biotechnology Co., Ltd., Shanghai 201807, China

Received date: 2015-03-19

Online published: 2015-08-13

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Abstract

This experiment was conducted to evaluate the effects of dietary supplemented with different compound acidifier on pH and digestive enzymatic activity of digestive tracts of broilers, in order to detect the best supplemental level of compound acidifier in broiler diet. A total of 648 one-day-old Arbor Acre (AA) broilers were randomly assigned to 6 groups with 6 replicates per group and 18 birds per replicate. Broiler in the control group were fed a basal diet, and the others were fed basal diets supplemented with 0.10%, 0.15%, 0.20%, 0.25% and 0.30% compound acidifier, respectively. The experiment lasted for 42 days. The results showed as follows: compound acidifier had significant effects on pH of crop, duodenum, jejunum and ileum of broilers at 42 days of age (P<0.05), and showed a linear correlation (P<0.05). Compound acidifier had significant effects on total enzyme, enzyme activity and activity ratio of pepsin in muscular stomach and glandular stomach of broilers at 42 days of age (P<0.05), and showed a linear correlation (P<0.05). Compound acidifier had significant effects on the activities of amylase and lipase in small intestine and showed a linear correlation (P<0.05), which showed no significant effects on the activities of trypsase and chymotrypsin in small intestine (P>0.05). In conclusion, the dosage of compound acidifier in broiler diet for the optimal digestive enzymatic activity of digestive tract is 0.10%.

Key words： compound acidifier; broilers; pH value; enzymatic activity

Cite this article

XIAO Qin , SHEN Yiru , ZHANG Shan , CHEN Jie , SHI Shourong . Effects of Compound Acidifier on pH and Digestive Enzymatic Activities in Digestive Tracts of Broilers[J]. Chinese Journal of Animal Nutrition, 2015 , 27(8) : 2527 -2533 . DOI: 10.3969/j.issn.1006-267x.2015.08.026

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