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http://dx.doi.org/10.11625/KJOA.2017.25.2.461

Fermentation of Environmental Friend Total Mixed Ration and Alteration of Rumen Fermentation Characteristics  

Ryu, Chae-Hwa (전북대학교 축산학과)
Park, Myung-Sun (전북대학교 축산학과)
Park, Chul (전북대학교 수의학과)
Choi, Nag-Jin (전북대학교 동물자원과학과)
Cho, Sang-Buem ((주)칼스엔비티 순환농축산연구소, 전북대학교 동물자원과학과)
Publication Information
Korean Journal of Organic Agriculture / v.25, no.2, 2017 , pp. 461-473 More about this Journal
Abstract
Total mixed ration (TMR) including concentrate diet and roughage together have been used for the ruminant animal. Relatively high concentrations of moisture and water soluble carbohydrate are representative feature of TMR. Those moisture and water can also provide a niche for bacterial growth. Therefore, a possible fermentation of TMR induced by micro-organism is generally accepted. The present study hypothesized that different lactic acid bacteria could alter fermentation of TMR and subsequently rumen fermentation. Three lactic acid bacteria, Lactobacillus paracasei (A), L. plantarum (B) and L. parabuchneri (C), were employed and 7 treatments under full factorial design were compared with control without inoculation. TMR for dairy cow was used. Significant alterations by treatments were detected at lactic acid and butyric acid contents in TMR (p<0.05). Treatment AC (mixture of A and C) and BC (mixture of B and C) showed great lactate production. Great butyrate production was found at treatment C. At in vitro rumen fermentation, treatments B, C and AB (mixture of A and B) showed significantly great total gas production (p<0.05). All treatments except treatments B and AB, showed less dry matter digestibility, significantly (p<0.05). Total volatile fatty acid production at treatment AC was significantly greater than others (p<0.05). In individual volatile fatty acid production, treatment AB and AC showed great acetate and propionate productions, significantly (p<0.05). This study investigated correlation between organic acid production in TMR and rumen volatile fatty acid production. And it was found that butyric acid in TMR had significant negative correlation with acetate, propionate, total volatile fatty acid, AP ratio and dry matter digestibility.
Keywords
dairy cow; lactic acid bacteria; organic acids; rumen fermentation; TMR;
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Times Cited By KSCI : 4  (Citation Analysis)
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