Effects of Organic Acids on Quality and Nutrient Composition of Stylosanthes guianensis Silage

ZHANG Yage; ZI Xuejuan; LI Mao; ZHOU Hanlin

doi:10.3969/j.issn.1006-267x.2016.05.039

Chinese Journal of Animal Nutrition >

2016 , Vol. 28 >Issue 5: 1609 - 1614

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.05.039

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Effects of Organic Acids on Quality and Nutrient Composition of Stylosanthes guianensis Silage

ZHANG Yage ,
ZI Xuejuan ,
LI Mao ,
ZHOU Hanlin

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1. College of Agriculture, Hainan University, Haikou 570100, China;
2. Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China;
3. College of Applied Science and Technology, Hainan University, Danzhou 571737, China

Received date: 2015-12-05

Online published: 2016-05-24

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Abstract

In order to improve Stylosanthes guianensis silage quality, this experiment was carried out to investigate the effects of organic acids on quality and nutrient composition of Stylosanthes guianensis silage. Stylosanthes guianensis cv. Reyan No.2 was used as the ingredient for silage, and were divided into 4 groups, which were regular silage (control), silage using 0.2% formic acid, acetic acid and propionic acid as additives. Each group had 3 replicates. After fermented for 30 days, pH and the contents of lactic acid, acetic acid, propionic acid, butyric acid and main nutrients were measured. The results showed as follows:regular silage without additives showed poor quality, and the addition of organic acids significantly decreased pH and butyric acid content (P<0.05), increased crude protein content, and acetic acid group was significantly higher than control group (P<0.05), decreased neutral detergent fibre content, and formic acid and acetic acid groups were significantly lower than control group (P<0.05), meanwhile increased relative feed value, and formic acid and acetic acid groups were significantly higher than control group (P<0.05). It is concluded that the addition of organic acids in Stylosanthes guianensis silage can improve silage quality and nutrient value, and 0.2% acetic acid is optimal.

Key words： Stylosanthes guianensis; organic acid; fermentation quality; nutrient composition

Cite this article

ZHANG Yage , ZI Xuejuan , LI Mao , ZHOU Hanlin . Effects of Organic Acids on Quality and Nutrient Composition of Stylosanthes guianensis Silage[J]. Chinese Journal of Animal Nutrition, 2016 , 28(5) : 1609 -1614 . DOI: 10.3969/j.issn.1006-267x.2016.05.039

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