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Effects of inoculants on the fermentation characteristics and in vitro digestibility of reed canary grass ( Phalaris arundinacea L.) silage on the Qinghai‐Tibetan Plateau

Journal Article · · Animal Science Journal (Tokyo)
DOI:https://doi.org/10.1111/asj.13364· OSTI ID:1606056
 [1];  [1];  [1];  [1];  [1];  [1];  [2]
  1. Sichuan Academy of Grassland Sciences Chengdu China
  2. Japan International Research Center for Agricultural Sciences (JIRCAS) Tsukuba Ibaraki Japan
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Abstract

To effectively use local available grass resources to cover the winter feed shortage on the Qinghai‐Tibetan Plateau, direct‐cut and wilted reed canary grass (RCG) silages were prepared by using a rolled‐bale system, and their ensiling characteristics and in vitro digestibility were studied. Silages were treated without (control) or with inoculants including LP ( Lactobacillus plantarum ), LPLB ( L. plantarum , L. buchneri ), and LPLBc ( L. plantarum , L. buchneri , and cellulase), and were stored at ambient temperature (5.7–14.6°C) for 90 days. Compared with control, the inoculated silages increased ( p  < .05) lactic acid and acetic acid contents, and reduced ( p  < .05) final pH value and ammonia‐N ratio of total N. The highest WSC content (41.2 g/kg DM) occurred for LPLB‐inoculated silage, whereas LPLBc‐treated silage displayed the lowest contents of NDF (522.9 g/kg DM) and ADF (275.5 g/kg DM). In addition, LPLBc‐inoculated silage had the highest in vitro gas production (51.0 ml/g DM), in vitro DM digestibility (619.3 g/kg DM), and metabolic energy (9.6 kJ/kg DM). These results confirmed that treatments with inoculants at ensiling could improve silage fermentation and in vitro digestibility of RCG, and this could be a potential winter feed for animals on the Qinghai‐Tibetan Plateau.

Sponsoring Organization:
USDOE
OSTI ID:
1606056
Journal Information:
Animal Science Journal (Tokyo), Journal Name: Animal Science Journal (Tokyo) Journal Issue: 1 Vol. 91; ISSN 1344-3941
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
Japan
Language:
English

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