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KMID : 1025520100520050413
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Journal of Animal Science and Technology
2010 Volume.52 No. 5 p.413 ~ p.426
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Effects on the Rumen Microbial Fermentation Characteristics of Lignosulfonate Treated Soybean Meal
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Park Joon-Chul
Cho Kyu-Ho
Ryu Jae-Weon
Hong Joon-Ki
Lee Sung-Dae
Sa Soo-Jin
Kim In-Cheul
Lee Sang-Cheol
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Abstract
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This study was conducted to investigate the effects on fermentation characteristics of rumen microorganism by different types and levels of lignosulfonate treated soybean meal(LSBM) in in vitro test and rumen simulation continuous culture(RSCC) system in dairy cows. The experiment Ⅰ was control and 12 treatments(each with 3 replications) in vitro test to demonstrate composition of different types of treatments with lignosulfonate(Desulfonate, Na, Ca and solution) and levels(2, 4 and 8%) of soybean meal in the dairy cow diet. LSBM source treatments in the dairy cow diet showed pH value, NH3-N concentration and total VFA concentration lower than control at all levels and incubation times(p<0.05). Dry matter digestibility of LSBM source treatments showed lower than control(p<0.05). Gas production and rumen microbial synthesis was decreased by rumen microbial fermentation for incubation times. Undegradable protein(UDP) concentration of all LSBM treatments was decreased for incubation times, and significantly higher than control(p<0.05). In the experiment Ⅱ compared diets of the control, LSBM Na 2%, LSBM Sol 2%, which are high performance to undegradable protein(UDP) concentration experiment Ⅰ in vitro test, and heated treatment lignosulfonate(LSBM Heat) 2% in the dairy cow diet from four station RSCC system(4×4 Latin square). A rumen microbial fermentation characteristic was stability during 12~15 days of experimental period in all treatments. The pH value of LSBM treatments was higher than control treatment (p<0.05). The NH3-N concentration, VFA concentration and rumen microbial synthesis of LSBM treatments were lower than control(p<0.05). The undegradable protein(UDP) showed LSBM Na 2%(45.28%), LSBM Sol 2%(43.52%) and LSBM Heat 2% (43.49%) higher than control(41.55%), respectively(p<0.05). 이 논문은 2007년도 중앙대학교 교내학술연구비 지원에 의한 것임 *Correspondingauthor:M. B. Chang, Department of Animal Science & Technology, College of Industrial Sciences, Chung-Ang University. Tel: 031-670-3029, E-mail: moonbaek@cau.ac.kr Those experiments were designed to improve by-pass protein of diet and milk protein in the dairy cows. We will conduct those experiments the in vivo test by LSBM treatments in dairy cows diet.
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KEYWORD
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Undegradable protein, Lignosulfonate, Soybean meal, In vitro, RSCC system
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