Short Communications

Combination Effects between Regular Roughages of Alfalfa Hay and Chinese Wildrye in Liaoning Cashmere Goats

  • ZHANG Rui ,
  • ZHU Xiaoping ,
  • LI Jianyun ,
  • ZHANG Wei ,
  • SONG Xianchen ,
  • LI Fengtian
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  • 1. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
    2. Institute of Animal Husbandry of Liaoning Province, Liaoyang 111000, China

Received date: 2013-04-11

  Online published: 2013-09-16

Abstract

In order to overall evaluate the Combination effects between alfalfa hay (AH) and Chinese wildrye (CW), an in vitro gas production test was used,and the combination ratios were by 20:80 (AH20:CW80), 40:60 (AH40:CW60), 60:40 (AH60:CW40) and 80:20(AH80:CW20), respectively. The changes of accumulated gas production, microbial protein (MCP) production, volatile fat acids (VFA) and pH and their single factor associative effects index (SFAEI) and multiply factors associative effects index (MFAEI) were determined after 4, 8, 12, 24 and 48 h of in vitro fermentation. The results showed as follows: the accumulated gas production of AH80:CW20 group was significantly higher than that of the other groups (P<0.05); the VFA production of AH80:CW20 and AH60:CW40 groups was higher than that of AH40:C60 and AH20:CW80 groups; the MCP production of AH80:CW20 and AH60:CW40 groups ranged from 0.70 to 0.79 mg/5mL, while that of AH40:CW60 and AH20:CW80 groups ranged from 0.85 to 1.11 mg/mL; the results of MFAEI for each combination indicated that the MFAEI of AH60:CW40 group (0.090 3) was the highest. In conclusion, the optimal combination ratio for AH and CW is 40:60.

Cite this article

ZHANG Rui , ZHU Xiaoping , LI Jianyun , ZHANG Wei , SONG Xianchen , LI Fengtian . Combination Effects between Regular Roughages of Alfalfa Hay and Chinese Wildrye in Liaoning Cashmere Goats[J]. Chinese Journal of Animal Nutrition, 2013 , 25(10) : 2481 -2488 . DOI: 10.3969/j.issn.1006-267x.2013.10.032

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