title: Fermentation quality and chemical composition of shrub silage treated with lactic acid bacteria inoculants and cellulase additives.
abstract: Effects of lactic acid bacteria (LAB) inoculants and cellulase additives on fermentation quality and chemical compositions of shrub silages were studied by using a small-scale fermentation system. Two LAB inoculants of Qingbao (Lactobacillus plantarum, Pediococcus acidilacticii, Lactobacillus casei and Clostridium phage) and Caihe (Lactobacillus plantarum, Lactobacillus brevis and Pediococcus acidilactici) and a commercial cellulase made from Trichoderma reesei were used as additives for intermediate pea-shrub, rush bushclover, arborescent ceratoides and shrubby silage preparation. The crude protein, neutral detergent fiber and water-soluble carbohydrate contents of the four shrub materials were 10.1-14.2, 62.6-67.2 and 1.9-3.5% on a dry matter basis, respectively. All shrub silages had pH 3.40-4.43, ammonia-N 0.1-0.2% g/kg and lactic acid 1.3-2.9% on a fresh matter basis. The silage quality of LAB-inoculated silages did not have a greater effect than control silages, except shrubby silage preparation. Silages treated with the cellulase, the pH of rush bushclover and shrubby sweetvetch silage were significantly (P < 0.05) lower and the lactic acid content were significantly (P < 0.05) higher than the control silages. The results confirmed that shrub contained a relatively high content of crude protein; its silages can be preserved in good quality, and they are new potential resources for livestock feed.
authors.affiliation: Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot, Japan.
authors.forename: Qizhong
authors.initials: Q
authors.lastname: Sun
authors.forename: Fengqin
authors.initials: F
authors.lastname: Gao
authors.forename: Zhu
authors.initials: Z
authors.lastname: Yu
authors.forename: Ya
authors.initials: Y
authors.lastname: Tao
authors.forename: Shufen
authors.initials: S
authors.lastname: Zhao
authors.forename: Yimin
authors.initials: Y
authors.lastname: Cai
mesh_terms: D002241:Carbohydrates / Q000032:analysis; D002480:Cellulase / Q000494:pharmacology*; D004043:Dietary Fiber / Q000032:analysis; D005285:Fermentation; D007777:Lactobacillaceae; D011506:Proteins / Q000032:analysis; D012820:Silage / Q000032:analysis*
chemical_list: D002241:Carbohydrates; D004043:Dietary Fiber; D011506:Proteins; D002480:Cellulase