Cai, Yimin

Han, Lujia

Liu, Xian

Xu, Chuncheng

Yang, Zengling

Yoshida, Norio

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings XXI International Grassland Congress / VIII International Rangeland Congress The Effect of Ensiling Rice Straw with or without Bacterial Inoculants on Fermentation Quality, Chemical Composition and Nutritive Value Chuncheng Xu China Agricultural University, China Yimin Cai National Institute of Livestock and Grassland Science, Japan Lujia Han China Agricultural University, China Xian Liu China Agricultural University, China Zengling Yang China Agricultural University, China See next page for additional authors Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/15-1/40 The XXI International Grassland Congress / VIII International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. Presenter Information Chuncheng Xu, Yimin Cai, Lujia Han, Xian Liu, Zengling Yang, and Norio Yoshida This event is available at UKnowledge: https://uknowledge.uky.edu/igc/21/15-1/40 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅱ 　 瞯 687　 瞯Grasslands/Rangelands Production Systems ——— Forage Quality ,Conservation and UtilizationThe effect of ensiling rice straw with or without bacterial inoculants on fermentation quality ,chemical composition and nutritive valueChuncheng Xu1 , Yimin Cai2 , Lu j ia Han1 , X ian Liu1 , Zengling Yang 1 and Norio Yoshida21 China Agricultural University , Bei j ing 100083 , P . R . China , E‐mail : xucc ＠ cau . edu . cn . 2 National Institute o fLivestock and Grassland Science , Nasushiobara , Tochigi 329‐2793 , JapanKey words : dry matter intake ,fermentation ,Lactobacillus plantarum Chikuso‐１ ,nutritive value ,rice straw silage .Introduction Rice straw is an important forage for ruminants in many rice‐producing countries . The annual yield of rice straw isabout ９００ million tonnes in Japan . The main nutritional constraints of rice straw as a ruminant feed are its low protein , highsilica and slow rate of fiber digestion . Physical , chemical and biological pretreatments have been widely used to increase thenutritional value of rice straw . The purpose of this study was to compare the ensiling characteristics , dry matter intake andnutritive value of rice straw round bale silages with or without addition of a selected strain of lactic acid bacteria , Lactobacillusp lantarum Chikuso‐１ .Materials and methods Rice straw was chopped to the length of ２０ cm by a rice harvester , and put in a baler , and wrapped withsix layers of ０ .０２５ mm white plastic film so that each of the bales in sealed condition . The diameter and width of the bales wereapproximately ８０ and ９０ cm . The bales were stored outdoor for ８ months .Table 1 Fermentation quality and chemical composition o frice straw silages .Control LABpH ５ .３５a ３ .９８bDry matter ,％ ３２ .１ ３１ .９Lactic acid ,％ DM ０ .９０a ３ .８６bAcetic acid ,％ DM ０ .３７a ０ .８２bPropionic acid ,％ DM nd ndButyric acid ,％ DM ０ .０６ ndAmmomia N ,％ TN ０ .１４a ０ .０３bCrude protein ,％ DM ５ .６ ５ .７Neutral detergent fiber ,％ Dm ６２ .１ ６１ .３Acid detergent lignin ,％ DM ５ .８ ５ .８Cellulose ,％ DM ３２ .１ ３２ .０Hemicellulose ,％ DM ２４ .２ ２３ .５a ,b Values within each row with different superscript letters differ significantly( P ＜ ０ .０５ ) .Table 2 Intake ,digestibility and nutrient contents o f ricestraw silages .Control LABIntake ,g / kg W０ .７５ / day １５ .２ ２９ .４Digestibility ,％　 Dry matter ５８ .２ ５９ .３　 Organic matter ６３ .１ ６４ .４　 Crude protein ７６ .５ ７６ .６　 Ether extract ６６ .３ ６７ .６　 Neutral detergent fiber ５７ .７ ５７ .９　 Acid detergent fiber ５６ .８ ５７ .０　 Cellulose ６１ .５ ６１ .３　 Hemicellulose ５９ .２ ５９ .３　 Gross energy ６１ .３ ６３ .２Nutrient contents　 TDN ,％ DM ５３ .７ (４１ .７ ) ５５ .１ (４３ .２ )　 DE ,MJ/ kg DM ９ .９ (７ .７１ ) １０ .２ (７ .９８ )Results After ８ months of fermentation , silage treated with strain Lactobacillus p lantarum Chikuso‐１ had a lower pH andhigher lactic acid content than the control . The mold‐generating portion in the treated and control silages were ０ and ３０ ％ on afresh matter basis , respectively . There was higher voluntary feed intake by sheep in the treated silage than the control . Thetreated silage also showed a tendency for higher contents of total digestible nutrient (４３ .２ vs . ４１ .７ ％ ) and digestible energy(７ .９８ vs . ７ .７１ MJ/ kg DM) than the control silage .Conclusion It is concluded that the addition of strain Lactobacillus plantarum Chikuso‐１ can improve fermentation quality , drymatter intake and nutritive value of round bale silage of rice straw .ReferenceXu . C . , Y . Cai , J . Zhang , and M . Ogawa .２００７ . Fermentation quality and nutritive value of a total mixed ration silagecontaining coffee grounds at ten or twenty percent of dry matter ,J . Anim . Sci . ８５ : １０２４‐１０２９ .

The Effect of Ensiling Rice Straw with or without Bacterial Inoculants on Fermentation Quality, Chemical Composition and Nutritive Value

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The Effect of Ensiling Rice Straw with or without Bacterial Inoculants on Fermentation Quality, Chemical Composition and Nutritive Value

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