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Acta Prataculturae Sinica ›› 2017, Vol. 26 ›› Issue (5): 197-204.DOI: 10.11686/cyxb2016223

• Orignal Article • Previous Articles     Next Articles

Nutritional value of ramie and its ruminal degradability

WEI Jin-Tao1, 2, YANG Xue-Hai2, YAN Nian-Dong2, XIONG Chang-Cai3, WANG Hong-Wu3, CHEN Fang2, ZHANG Nai-Feng1, DIAO Qi-Yu1, *   

  1. 1.Key Laboratory of Feed Biotechnology of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    2.Institute of Animal Husbandry and Veterinary Science, Hubei Academy of Agricultural Science, Wuhan 430064, China;
    3.Xianning Academy of Agricultural Sciences, Xianning 437100, China
  • Received:2016-05-27 Revised:2016-07-06 Online:2017-05-20 Published:2017-05-20

Abstract: The aim of this study was to investigate the nutrient components and ruminal degradability characteristics of ramie. Common nutrition components, amino acids composition, and anti-nutrient (e.g., tannin) contents were determined for seven ramie samples containing different proportions of stubble, and the ruminal degradability was estimated using three male Boer goats fitted with permanent rumen fistula. The average crude protein (CP) content of the seven stubble samples was 19.57%. The CP content decreased with increasing proportions of stubble, but the CP content in sample 7, which had the highest proportion of stubble, was slightly higher than that in sample 6, which had a slightly lower proportion of stubble. The average total amino acids content was 16.40%, accounting for 83.80% of CP. The average Lys and Thr contents were 0.84% and 0.82%, respectively. The average content of tannin, the main anti-nutrient in ramie, was 0.67%. The ruminal degradability of ramie dry matter, CP, organic matter, neutral detergent fiber, and acid detergent fiber increased with longer digestion time; the effective degradability of these nutrients was 47.00%, 35.53%, 44.29%, 57.68% and 38.59%, respectively. In conclusion, ramie has a high protein content, high-quality CP, and high rumianl degradability of some nutrients. Therefore, it is a good forage for ruminants.

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