Received: 18-06-2018
Accepted: 09-10-2018
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Use of Pleurotus eryngiiFungus for Treatment of Rice Straw as Feed ForRuminants
,
Nguyen Thi Tuyet Le
1
,
Bui Quang Tuan
1
Keywords
Pleurotus eryngii, rice straw, manganese, ruminants
Abstract
This study was conducted to determine the nutritional value of rice straw after incubation with Pleurotus eryngii fungus. In experiment 1, rice straw was treated with P. eryngiiat the concentrations of 0.5, 1.0, 1.5, 2.0, and 2.5% of wet weight of substrate. The incubation times were 2, 4, 6 and 8 weeks. Each experimental treatment was done in 3 replicates. Results showed that increasing the concentration of P. eryngii and incubating time decreased the content of NDF, ADL but increased the content of CP. The content of NDF and ADL was lowest, while the content of CP was highest when incubating rice straw with 2.5% P. eryngiifor 8 weeks (P <0.001). In experiment 2, rice straw was treated with P. eryngiiat 2.5% (w/w) and manganese was supplemented at concentrations of 100; 150; 200; 300 μg/g of wet weight of substrate. The incubation times were 2, 4, 6, and 8 weeks. Each experimental treatment was done in 3 replicates. Results showed that supplementation of manganese at different concentrations and incubating 2.5% P. eryngiiwith rice straw had no significant effect on the content of NDF, ADL, and CP. Based on the results of this study, it is concluded that using 2.5% P. eryngiiwithout supplementation of manganesefor incubating for 4 weeks would be the most effective in reducing lignin content and improving crude protein content of rice straw.
References
Akinfemi A. and Ogunwole O.A. (2012). Chemical composition and in vitro digestibility of rice straw treated with Pleurotus ostreatus, Pleurotus pulmonariusand Pleurotus tuber-regium. Slovak Journal of Animal Science, 45: 14-20.
Hammel K.E. and Cullen D. (2008). Role of fungal peroxidases in biological ligninolysis. Current Opinion in Plant Biology, 11: 349-355.
Jafari M.A., Nikkhah A., Sadeghi A.A. and Chamani M. (2007). The effect of Pleurotusspp.fungi on chemical composition and in vitro digestibility of rice straw. Pakistan Journal of Biological Sciences, 10: 2460-2464.
Kirk T.K. and Farrell R.L. (1987). Enzymatic “combustion”: the microbial degradation of lignin. Annual Review of Microbiology, 41: 465-505.
Kuijk S.J.A.V., Sonnenberg A.S.M., Baars J.J.P., Hendriks W.H., Cone J.W. (2015). Fungal treatment of lignocellulosic biomass: Importance of fungalspecies, colonization and time on chemical composition and invitro rumen degradability. Animal Feed Science and Technology, 209: 40-50.
Kuijk S.J.A.V., Sonnenberg A.S.M., Baars J.J.P., Hendriks W.H., Cone J.W. (2016a). The effect of adding urea, manganese and linoleic acid to wheatstraw and wood chips on lignin degradation by fungi andsubsequent in vitro rumen degradation. PhD thesis, Wageningen University, The Netherlands, ISBN 978-94-6257-654-4, pp. 119-131
Kuijk S.J.A.V., Sonnenberg A.S.M., Baars J.J.P., Hendriks W.H., Cone J.W. (2016b). The effect of particle size and amount of inoculum added to wheatstraw and wood chips on lignin degradation by fungi andsubsequent in vitro rumen degradation.PhD thesis, Wageningen University, The Netherlands, ISBN 978-94-6257-654-4, pp. 133-149.
Tuyen V.D., Cone J.W., Baars J.J.P., Sonnenberg A.S.M. and Hendriks W.H. (2012). Fungal strain and incubation period affect chemical composition and nutrient availability of wheat straw for rumen fermentation. Bioresource Technology,380: 336-342.
Van Soest P.J., Robertson,J.B. and Lewis B.A. (1991). Methods for dietary fiber, neutral detergent fiber, and non starch polysaccharides in relation to animal nutrition. Journal of Dairy Science, 74: 3583-3597.
Wan Z.M., Abu H.O., Wong H.K. and Liang J.B. (2003). Utilization of oil palm frond-based diets for beef and dairy production in Malaysia. Asian-Australasian Journal of AnimalSciences, 16: 625-634.