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논문 기본 정보

자료유형
학술저널
저자정보
Chae Hwa Ryu (Rural Development Administration) Seul Lee (Rural Development Administration) Byeonghyeon Kim (Rural Development Administration) Sang Yun Ji (Rural Development Administration) Hyunjung Jung (Rural Development Administration) Hyun-Jeong Lee (Rural Development Administration) Jae-Yong Song (Nonghyup) Youl Chang Baek (Rural Development Administration)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.48 No.2
발행연도
2021.6
수록면
333 - 342 (10page)

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초록· 키워드

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This study attempted to compare total digestible nutrients (TDN) calculated as Rohweder, NRC, and Waldo and Peiqiang methods and TDN measured as digestibility of in vivo appearance. Rohweder method showed that the TDN of rice straw and timothy were 54.32% and 57.79%, respectively. In NRC method, the digestibility of neutral detergent fiber (NDF) and TDN of rice straw were 50.76% and 53.15%, respectively. When NRC method was applied in Timothy, the digestibility of NDF and TDN were 51.53% and 55.22%, respectively. Waldo and Peiqiang method calculated the results through the rumen in situ test. NDF digestibility of rice straw and timothy was 44.61% and 51.82%, which was different from the results of NRC method. In addition, TDN was predicted to be 48.85% for rice straw and 55.41% for timothy. In the in vivo apparent digestibility experiment, the digestibility of NDF and TDN in rice straw was 41.10% and 44.79%, respectively. In timothy, the digestibility of NDF and TDN were measured as 51.29% and 58.18%, respectively. As a result of a series of studies, rice straw was found in Rohweder and NRC methods showed higher TDN than other methods. In this study, there was a difference in rice straw by measurement method, but there was no difference in timothy. Therefore, when evaluating the value of feed in order to provide roughage to ruminant, calculation methods must be modified and supplemented. In addition, TDN should be considered to apply several evaluation methods instead of one method.

목차

Abstract
Introduction
Materials and Methods
Results and Discussions
Conclusion
References

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