Effects of Storage Time on the Nutrient Composition and in Vitro Digestibility in Salix Mixed Fermentation Feed

LI Manshuang, XUE Shuyuan, GUO Tianlong, WANG Chao, JIN Hai

doi:10.3969/j.issn.1006-267x.2015.02.039

Chinese Journal of Animal Nutrition >

2015 , Vol. 27 >Issue 2: 655 - 662

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.02.039

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Effects of Storage Time on the Nutrient Composition and in Vitro Digestibility in Salix Mixed Fermentation Feed

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Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China

Received date: 2014-08-22

Online published: 2015-02-09

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Abstract

This experiment was conducted to study the effects of storage time on the nutrient composition and in vitro digestibility in salix mixed fermentation feed, in order to provide a new ways for better utilization of salix. In this experiment, according to the different proportion of salix (36.44% and 67.08%), two groups of mixed fermentation feed were made, represented by FF1 and FF2, respectively. Each group added the same number of compound bacteria preparation. The variation law of nutrient composition and in vitro digestibility of salix mixed fermentation feed at different storage periods of 1, 3, 5, 7, 10, 12, 15, 22, 30, 45 and 60 days were analyzed. The results showed as follows: 1) with the extension of storage time, the contents of dry matter (DM), organic matter (OM) and water soluble carbohydrate (WSC) were significantly decreased (P<0.05), and the contents of neutral detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) were significantly decreased (P<0.05); the content of ether extract (EE) was significantly increased (P<0.05); the content of crude protein (CP) was increased during storage, but the difference was no significant (P>0.05). 2) With the extension of storage time, the in vitro digestibilities of DM, OM, CP, NDF and ADF were significantly increased (P<0.05). The nutrient component in vitro digestibility had significant difference between the two groups (P<0.05). In conclusion, according to the two kinds of fermented feed formulation of adding different proportions of salix, the nutritional value of salix mixed fermentation feed is increase with different storage periods. Comprehensive indicators, salix mixed fermentation feed gradually stabilize after 30 days, and FF1 nutritional quality is superior to FF2.

Key words： salix; storage time; mixed fermentation feed; nutrient component; in vitro digestibility

Cite this article

LI Manshuang, XUE Shuyuan, GUO Tianlong, WANG Chao, JIN Hai . Effects of Storage Time on the Nutrient Composition and in Vitro Digestibility in Salix Mixed Fermentation Feed[J]. Chinese Journal of Animal Nutrition, 2015 , 27(2) : 655 -662 . DOI: 10.3969/j.issn.1006-267x.2015.02.039

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