China Animal Husbandry and Veterinary Medicine ›› 2021, Vol. 48 ›› Issue (8): 2838-2852.doi: 10.16431/j.cnki.1671-7236.2021.08.017

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Research Progress on Silage and Utilization of Woody Feed

XU Jinyi, CHEN Chao, WANG Haijin, WANG Huanhuan, NA Binbin, ZHENG Yulong   

  1. College of Animal Science, Guizhou University, Guiyang 550025, China
  • Received:2021-03-12 Online:2021-08-20 Published:2021-08-19

Abstract: Woody feed is a new type of unconventional feed, rich in a variety of amino acids, vitamins and organic matter, rich in nutritional value, and most of the woody feed plant have higher crude protein content, which can be used as an excellent protein feed resources, and its effective use can alleviate the severe constraints on the development of animal husbandry.However, due to the existence of anti-nutritional factors, untreated woody feed directly feeds livestock has poor palatability and low digestibility.Silage treatment can effectively reduce the loss of feed nutrients, improve palatability and its nutritional components, and enhance feeding effect, which has become an important treatment method.Based on the domestic and foreign research on the silage of woody feed, this paper focused on the evaluation of nutritional value of different woody feed, selection of silage materials, effects of silage additives (chemical additives, lactic acid bacteria additives, enzyme preparations and nutritional additives) on silage fermentation, the mixed silage technology of woody feed and different raw materials (gramineous forage, different woody feed, agricultural by-products, etc.) and its effect on fermentation, the nutritional characteristics of woody forage after successful silage and the feeding effect of different animals in the various feeding experiment of woody silage were systematically reviewed, according to the research status of woody feed and the importance of resources, suggestions and prospects for its future development were put forward, in order to provide reference for the follow-up development and practical application of woody silage.

Key words: woody feed; nutritional value; additive silage; mixed silage; feeding effect

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