Browse > Article
http://dx.doi.org/10.5333/KGFS.2010.30.2.143

Feed Evaluation of Whole Crop Rice Silage Harvested at Different Mature Stages in Hanwoo Steers Using In Situ Technique  

Choi, Chang-Weon (National Institute of Animal Science, RDA)
Chung, Eui-Soo (National Institute of Animal Science, RDA)
Hong, Seong-Koo (National Institute of Animal Science, RDA)
Oh, Young-Kyoon (National Institute of Animal Science, RDA)
Kim, Jong-Geun (National Institute of Animal Science, RDA)
Lee, Sang-Cheol (National Institute of Animal Science, RDA)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.30, no.2, 2010 , pp. 143-150 More about this Journal
Abstract
Three Hanwoo steers (BW $623{\pm}18.5kg$) with ruminal and duodenal cannulae were used to investigate nutrients degradability and total digestible nutrient (TDN) of whole crop rice silage (WRS) harvested at different mature stages using in situ technique. Crude protein content (mean 4.81%) decreased with progressed maturity at harvest except for WRS harvested at yellow stage. Ruminal dry matter degradability of WRS at milk stage tended to be slightly lower than that of the other stages during the entire incubation time from 12 h post-incubation. The rapidly degradable N (a-fraction) of WRS harvested at milk stage was significantly (p<0.05) higher than that of WRS at dough stage whereas the slowly degradable N (b-fraction) of WRS harvested at yellow and dough stages were statistically (p<0.05) higher than those of the other WRS. Effective protein degradability (EPD) of WRS harvested at yellow stage was numerically (compared with dough and milk stages) and statistically (compared with mature stage) higher than EPD of the other WRS. Protein digestibility of WRS at different gastric tracts did not differ (p>0.05) between the harvest stages. TDN of WRS harvested at yellow stage in Hanwoo steers was statistically (compared with milk stage) and numerically (compared with dough and mature stages) higher than TDN of the other WRS. Overall, taking present feed evaluation into consideration, WRS harvested at yellow stage may be recommended for Hanwoo steers. Further studies on in vivo rumen fermentation pattern and minimizing nutrients loss during harvest should be required for accurate feed evaluation.
Keywords
Feed evaluation; Whole crop rice silage; Hanwoo steer; In situ;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
1 Sakai, M. 2003. New rice varieties for whole crop silage use in Japan. Breed. Sci. 53(3):271-276.   DOI   ScienceOn
2 SAS. 2002. Sas User's Guide. Statistics. Version 8.e. SAS Institute. Inc. Cary, NC.
3 Shioya, S. 2003. Feeding technology of whole crop rice silage. National Livestock Research Institute. International Seminar on Cultivation and Utilization of Rice as Feeds. Proceedings. pp. 83-98.
4 이점호, 정오영, 백진수, 홍하철, 양세준, 이영태, 김종근, 성경일, 김병완. 2005. 최적 총체사료벼 품종 선발을 위한 건물수량 및 사료가치 분석. 한국동물자원과학회지. 47(3):355-362.   과학기술학회마을   DOI   ScienceOn
5 차영호, 김형호, 박준철, 정완태. 1998. 면양의 사료로서 벼, 현미, 백미의 가소화영양성분. 축산논문집. 40(1):114-117.
6 Henning, P.H., D.G. Steyn and H.H. Meissner. 1993. Effect of synchronization of energy and nitrgen supply on ruminal characteristics and microbial growth. J. Anim. Sci. 71:2516-2528.   DOI
7 최창원, 백경훈, 강수원, 이병석, 오영균, 김경훈. 2006. 제 3위 소화액 채취기법을 이용한 반추위 단백질 사료 분해 패턴 측정법의 고찰. 한국동물자원과학회지. 48(4):541-554.   과학기술학회마을   DOI   ScienceOn
8 A.O.A.C 1990. Official method of analysis, association of offical agricultural chemist. Washington, D. C. USA.
9 Choi, C.W. 2002. Assessment of the flow of soluble dietary non‐ammonia nitrogen escaping degradation in the rumen of dairy cows fed grass silage based diets. Ph.D. Dissertation, Department of Animal Science. Publications No. 66. University of Helsinki. ISBN 952-10-0855-5 (nid.). 60 p. + 4 publ.
10 Kato, M., T. Takahashi and T. Kayaba. 2000. Effect of applied fermented dairy cow waste on slurry nitrogen utilization, mineral content, fermentes quality and nutritional yield of rice plan (Oryza sativa L.). Grassland Science. 45:379-387.
11 Masao, O. and H. Takeshi. 1990. Effects of cropping season and soiling time and height on herbage and grain yield and feeding value. Japan Jour. Crop Sci. 59(3):419-425.   DOI
12 National Research Council. 2001. Nutrient Requirement of Dairy Cattle. 7th Revised Ed. Washington, DC: Academy Press.
13 Orskov, E.R. and P. McDonald. 1979. The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. J. Agric. Sci., Camb. 92:499-503.   DOI
14 성경일, 홍석만, 김병완. 2004. 수확시기가 사료용 벼의 초장, 건물수량 및 사료성분에 미치는 영향. 한초지. 24(1):53-60.   과학기술학회마을   DOI   ScienceOn
15 김종근, 정의수, 서 성, 김맹중, 이종경, 윤세형, 임영철, 조용민. 2008. 수확시기 및 품종이 총체벼 사일리지의 품질에 미치는 영향. 초지조사료지. 28(1):29-34.   과학기술학회마을   DOI   ScienceOn
16 김종근, 정의수, 이종경, 임영철, 윤세형, 김맹중. 2009. 총체 벼의 직파시기에 따른 수량 및 사료가치 비교. 초지조사료지. 29(1):25-30.   과학기술학회마을   DOI   ScienceOn
17 김종근, 정의수, 함준상, 서 성, 김맹중, 윤세형, 임영철. 2007. 생육시기 및 품종이 총체 벼의 수량 및 사료가치에 미치는 영향. 한초지. 27(1):1-8.   과학기술학회마을   DOI   ScienceOn
18 오영균, 김경훈, 최창원, 강수원, 정일병, 노환국. 2006. 한우에 대한 현미의 사료가치 평가. 한국동물자원과학회지. 48(3):393-400.   과학기술학회마을   DOI   ScienceOn