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Comparison of Rumen Degradation Characteristics between Spent Mushroom Substrate and Commonly Used Roughages for Dairy Cows

  • GONG Fuchen ,
  • HAN Meilin ,
  • YANG Qiong ,
  • LI Jie ,
  • SUN Xiaohong
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  • 1. Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;
    2. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China

Received date: 2012-12-17

  Online published: 2013-05-15

Abstract

The aim of this study was to evaluate the rumen degradation characteristics of spent mushroom substrate (SMS) as a type of roughage for ruminants. Three Holstein cows with ruminal cannulas were assigned to 3 treatments in a 3?3 Latin square design, and the rumen degradation rates of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) of Chinese wildrye (CW), corn stover (CS) and SMS were measured using nylon bag method. The culture time of roughages in the rumen was 0, 6, 12, 24, 36, 48 and 72 h, respectively. The results showed that there were no differences in DM degradation rate among roughages at 72 h, the effective degradability (ED) of DM ranked in the following order: SMS (29.33%)>CW (27.41%)>CS (23.39%), and the ED of SMS and CW was significantly higher than that of CS (P<0.05). Both the CP degradation rate at 72 h and the ED of CP ranked in the following order: CW>SMS>CS, and the CP degradation rate of CW and SMS was significantly higher than that of CS (P<0.05). There was a significant difference in NDF degradation rate at 72 h between CS and other treatments (P<0.05). The ED of NDF in treatments was low, ranked in the following order: CS (26.12%)>SMS (25.72%)>CW (23.73%), and there was no significant difference among three treatments (P>0.05). The trend and difference of ADF degradability in treatments were similar to those of NDF, and the ED of ADF ranked in the following order: CS( 25.36%)>SMS (24.23%)>CW (21.83%). In conclusion, seeing from the rumen degradation characteristics of roughages, in this experiment the feeding value of SMS is equivalent with that of CW, but better than that of CS. It is concluded that SMS has a high potential as a new non-conventional feed resource for ruminants.

Cite this article

GONG Fuchen , HAN Meilin , YANG Qiong , LI Jie , SUN Xiaohong . Comparison of Rumen Degradation Characteristics between Spent Mushroom Substrate and Commonly Used Roughages for Dairy Cows[J]. Chinese Journal of Animal Nutrition, 2013 , 25(6) : 1366 -1374 . DOI: 10.3969/j.issn.1006-267x.2013.06.031

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