Evaluation of non-conventional feeds for ruminants using in situ nylon bag and the mobile bag technique

In situ 나일론백 그리고 모바일백 방법을 이용한 국내 부존사료자원의 반추가축용 사료 가치 평가

  • Baek, Youl-Chang (National Institute of Animal Science, Rural Development Administration) ;
  • Choi, Hyuck (National Institute of Animal Science, Rural Development Administration)
  • 백열창 (농촌진흥청 국립축산과학원) ;
  • 최혁 (농촌진흥청 국립축산과학원)
  • Received : 2017.05.23
  • Accepted : 2017.07.07
  • Published : 2017.07.31


This study was conducted to evaluate the chemical composition, digestibility, and energy value of 15 non-conventional feeds produced in South Korea as ruminant feeds. Three Hanwoo steers (body weight, $520{\pm}20.20kg$) fitted with a permanent rumen cannula and duodenal cannula were housed individually in tie-stall barns, followed by a 14-day adaptation period and 3-day experimental period. Chemical composition analysis, in situ nylon bag, and mobile bag technique were used as experiments. As a result of the chemical composition analysis offeeds, crude protein (CP) contentsofmalt meal, perilla meal, soy sauce cake, and soymilk residue were greater than 30%. As a result of the degradability characteristics analysis of feeds using an in situ nylon bag, rumen undegraded protein (RUP) contents of beet pulp, brewer's grain, coffee meal, malt meal, milo bran, perilla meal, ramen residue, and soymilk residue were greater than 50%. Analysis of total digestible nutrient (TDN) values of feeds using an in situ mobile bag showed that TDN values of beet pulp, brewer's grain, makgeolli residue, milo bran, perilla meal, ramen residue, rice bran, soy sauce cake, soybean curd cake, soymilk residue, and wheat bran weregreater than 50%. In summary, these non-conventional feeds have high potential value as good feed resources to replace formulated feeds or roughage. Therefore, the chemical composition, digestibility, and energy value of non-conventional feeds obtained from this study can be used as base data for the manufacture of ruminant total mixed ration (TMR) with improved feed efficiency, reduced feed costs, and reduction of environmental pollution.


Crude protein;Food by-products;Rumen undegraded protein;Total digestible nutrient;Total mixed ration


Grant : A study to improve the productivity and adaptability of Hanwoo to counter global warming

Supported by : National Institute of Animal Science, Rural Development Administration


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