[논문]Effects of Substituting Concentrates with Dried Leftover Food on Growth and Carcass Characteristics of Hanwoo Steers

Paek, B.H.; Kang, S.W.; Cho, Y.M.; Cho, W.M.; Yang, C.J.; Yun, S.G.

doi:10.5713/ajas.2005.209

Effects of Substituting Concentrates with Dried Leftover Food on Growth and Carcass Characteristics of Hanwoo Steers 원문보기

Asian-Australasian journal of animal sciences, v.18 no.2, 2005년, pp.209 - 213

Paek, B.H. (National Livestock Research Institute, RDA) , Kang, S.W. (National Livestock Research Institute, RDA) , Cho, Y.M. (National Livestock Research Institute, RDA) , Cho, W.M. (National Livestock Research Institute, RDA) , Yang, C.J. (Department of Animal Science and Technology, Sunchon National University) , Yun, S.G. (National Livestock Research Institute, RDA)

Abstract ▼ AI-Helper

This study was conducted to determine the optimum substitution level of dried leftover food (DLF) in formula feed for Hanwoo (Korean Native Cattle) steers. A total of forty growing steers were assigned to 5 treatments based on substitution level of DLF (at 0, 25, 50, 75 and 100% level of formula feed). The experiment was carried out with growing steers from 6 months of age to 24 months of age. Average daily gain (ADG) was not affected by DLF substitution level up to 75% of formula feed. However ADG decreased at 100% substitution level. Daily feed intakes were similar among treatments but the amount of feed per 1 kg gain increased with increasing substitution level of DLF. Dressing percentage was around 62% in all treatments without any significant differences. Proportion of quality beef higher than grade 1 was the greatest from animals fed 25% substitution level of DLF. Economic efficiency for Hanwoo steer operator was the highest with 50% substitution level of DLF.

주제어

AI 본문요약
AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

문제 정의

There are, however, a lot more researches on physical, chemical or biological treatment methods required to improve quality of leftover food as animal feeds. Therefore, the objective of this study was to determine the optimal substitution level of dried leftover food in formula feed for Hanwoo steers.

제안 방법

Fasted animals were weighed and slaughtered. And after an overnight chilling process, beef yield and quality grades were assessed by a trained evaluator by observing at the vertical surface of loin eye area between the last thoracic vertebrae and the first lumbar vertebrae. Marbling scores were assessed in scores from 1 (no marbling) to 7 (high marbling) with final quality grades from 3 (low quality) to 1+(very high quality) considering colors, maturity and texture as well as marbling.
Carcass yield grades from C (low yield) to A (high yield) were calculated by an index that considers carcass weight, back fat thickness and loin eye area according to the standard of Korean Meat Evaluation System. Crude fat contents in the loin eye area were analyzed by ether extraction in the meat science lab of NLRI by taking samples from cold carcasses where the carcass evaluation had been made.

이론/모형

Feed intake was calculated by weighing feed residue remained in the feeder before feeding every morning. Chemical composition of feed was analyzed by the method of AOAC (1990). TDN contents of formula feed and rice straw were calculated according to digestion coefficients estimated by RDA (1988) and Lee (1998).
Treatment means were separated by ’ Duncan s Multiple Range Test (Duncan, 1955).
Data analysis was performed using SAS package (1995). Treatment means were separated by ’ Duncan s Multiple Range Test (Duncan, 1955).

성능/효과

Table 6 shows the effects of DLF substitution level on carcass characteristics of Hanwoo steers. Average carcass weight and slaughter weight of 100% DLF feed groups were significantly lower than the other groups (p<0.05). Dressing percentage was the highest from groups of 50% substitution level of DLF for formula feed and the lowest in 100% substitution level of DLF.
05). Dressing percentage was the highest from groups of 50% substitution level of DLF for formula feed and the lowest in 100% substitution level of DLF. But any significant differences were not found between treatment groups.
The DM, CP and TDN intake for 1 kg body weight gain reached peak at 75% substitution level of DLF. Relative digestion efficiency of DM, CP and TDN at 75% substitution level of DLF as compared to non-DLF diet (control) were estimated to be 72%, 45% and 80%.
Economical efficiencies of substituting formula feed for finishing Hanwoo steers with DLF at different levels were analyzed (data not shown). The results showed that income per head was highest in 50% substitution level of DLF for formula feed and lower in groups fed DLF over 75% substitution level than that of control.

참고문헌 (21)

AOAC. 1990. Official methods of analysis. 15th Ed. Association of official analytical chemists. Washington, DC.
Cho, Y. M., G. W. Lee, J. S. Jang, I. S. Shin, K. M. Myung, K. S. Choi, I. H. Bae and C. J. Yang. 2004a. Effects of feeding dried leftover food on growth and body composition of broiler chicks. Asian-Aust. J. Anim. Sci. 17:386-393.
Cho, Y. M., I. S. Shin and C. J. Yang. 2004b. Effects of feeding dried leftover food on productivity of laying hens. Asian-Aust. J. Anim. Sci. 17:518-522.
Duncan, D. B. 1955. Multiple range and multiple F tests. Biometric. 11:1.
Gijen, H. J., T. T. H. Schoenmarks, C. G. M. Caeteling and G. D. Vogels. 1988. Anaerobic degradation of paper mill sludge in a two phase digestion containing rumen microorganism and colonized polyurethane form. Biotechnology letter. Vol(2):61-66.
Hong, S. K., B. H. Baek, H. S. Kang and W. M. Cho. 1996. Effects of restricted feeding and market weights on the carcass characteristics of Hanwoo steers. Korean J. Anim. Sci. 38(3):215-230.
Karalazos, A. and H. Swan. 1976. Molasses and its byproduct, In (Ed. H. Swan and L. lewis). Feed and Energy Sources for Livestock. Butterworths London. pp. 29-46.
Kil, J. Y., H. J. Kim, D. H. Lee, S. B. Cho, S. R. Lee and W. J. Maeng. 1999. Study on degradation pattern of nutrients by food waste in the rumen. Proc. of the 8th Annual Congress of Korean Society of Animal Science. p. 183. June 25, 1999, Chunchon, Korea.
Lee, J. P., S. C. Park and S. W. Rhee. 1997. The effect of ammonia and sodium chloride on the anaerobic degradation of food waste. J. KSEE. 19(9):1185-1192.
Lee, K. H. 1998. Evaluation of nutritive value of food waste as a feed. Symposium for Food Waste as a Feed. pp. 113-128.
McClure, K. E., E. W. Klosterman and R. R. Johnson. 1970. Palatability and digestibility of processed garbage fed to ruminants. J. Anim. Sci. 31:249(Abstr.).
McKnight, D. R., G. S. Hopper, L. A. Drevjany and W. E. Pollock. 1979. Effect of sodium bicarbonate on all concentrate rations fed Holstein steers. Can. J. Anim. Sci. 59:805-807.
Myer, R. O., T. A. DeBusk, J. H. Brendemuhl and M. E. Rivas. 1994. Initial assessment of dehydrated edible restaurant waste (DERW) as a potential feedstuffs for swine. Florida swine Res. Rep. No. ANSSW. 94. Animal Sci. Dept., Univ. of Florida, Gainesville, Fla. pp. 44-51.
NLRI. 1999. National Livestock Research Institute. 1999. The Related laws for food waste as a feed and industrialization. Utility technology of food waste as a feed. pp. 117-133.
NRC. 1994. Nutrient requirement of beef cattle. 9th. National Academy Press. Washington, DC.
Rivas, M. E., J. H. Brendemuhl, R. O. Myer and D. D. Johnson. 1994. Digestibility by swine and microbiological assessment of dehydrated restaurant waste. Res. Rep. A1-1994-3. College of Agric., Florida Agric. Exp. Sta., Univ. of Florida, Gainsville.
RDA. 1988. Rural Development Administration. Composition of Korean Feedstuffs. p. 56.
Summers, J. D., G. K. Macleod and W. C. Warner. 1980. Chemical composition of culinary wastes and their potential as a feed for ruminants. Animal Feed Science and Technology 5(3):205-214.
Tadtiyant, C., J. J. Lyons and J. M. Vandepopulience. 1988. Utilization of extruded poultry farm motalities and feathers in broiler starter diet. Poult. Sci. 68(Suppl. 1):145(Abstr.).
Yu, D. J. 1998. Reasonableness and promotion plan of food waste as a feed. Proc. of the Annual Congress of Korea Organic
Waste Recycling Council. October 30, 1998. Wonju, Korea. pp. 135-156.

저자의 다른 논문 :

원문 URL 링크

DOI : 10.5713/ajas.2005.209 [무료]
Korea Open Access Journals : 저널
Asian-Australasian Association of Animal Production Societies : 저널
AccessON : 저널

*원문 PDF 파일 및 링크정보가 존재하지 않을 경우 KISTI DDS 시스템에서 제공하는 원문복사서비스를 사용할 수 있습니다.

오픈액세스(OA) 유형

BRONZE

출판사/학술단체 등이 한시적으로 특별한 프로모션 또는 일정기간 경과 후 접근을 허용하여, 출판사/학술단체 등의 사이트에서 이용 가능한 논문

내보내기 메뉴

내보내기 구분

파일저장
인쇄
메일전송

구성항목

기본정보
상세정보

관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관

저장형식

Text(ASCII format)
Excel format
RefWorks Direct Export
RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley

메일정보

받는사람 (필수): @
보내는사람 (선택): @
제목
내용: KISTI 검색결과 이메일 서비스

안내

총 건의 자료가 검색되었습니다.

다운받으실 자료의 인덱스를 입력하세요. (1-10,000)

검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다.

데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요)

다운로드 파일은 UTF-8 형태로 저장됩니다.
파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오.

Text(ASCII format)
Excel format

표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

AI-Helper ※ AI-Helper는 을 사용합니다.

AI-Helper

안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

연합인증