지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 67 - 71 (5page)
이용수
초록· 키워드
오류제보하기
A variety of livestock feed resources were used in Korean dairy farm due to a lack of the endemic feed. However, there is inadequate real farm data to support farmers’ decisions on the choice of options. The main objective of this study was to evaluate the nutritional value of total mixed ration (TMR) as well as the metabolic diseases status in Korean dairy farms. TMR samples were collected from nine feed companies and eight selected self-formulated by the dairy farms. The nutrient contents were exam-ined by AOAC methods. The frequency of metabolic diseases such as ketosis and hypocalcemia were surveyed. The average moisture content was 36.2% although the min. and max. value were varied from 21.7% and 50.6% among farms. The mean±standard deviation of crude fiber (CF), crude ash (CA), ether extract (EE), and crude protein (CP) were 21.4±2.5, 4.6±0.4, 3.2±0.5 and 9.8±1.7, respectively. However, the average ADF and NDF was 17.3±3.7 and 31.0±5.7, respectively. The compositions of TMR were varied significantly among the dairy farms. The frequency of clinical Ketosis (CK), sub-clinical ketosis (SCK) and hypocalcemia were higher in early lactation period with 4.5%, 11.0% and 3.0%, respectively. Also, the frequency of SCK was higher than CK and hypocalcemia throughout the lactation. Periodic TMR nutrient analysis based on herd production or physiology change would max-imize the effects of TMR feeding. Furthermore, the study results would be useful to the farm practi-tioner and producer for their farm management.
목차
등록된 정보가 없습니다.
참고문헌 (18)
참고문헌 신청
2017 / 2017 한국사양표준 젖소
Michael S. Allen / 2000 / Effects of Diet on Short-Term Regulation of Feed Intake by Lactating Dairy Cattle / Journal of Dairy Science 83(7):1598~1624
AOAC / 2000 / Official methods of analysis
Black AL. / 1952 / Acetate by max / Journal of Biological Chemistry 197:371~379
T.F. Duffield / 1998 / Efficacy of Monensin for the Prevention of Subclinical Ketosis in Lactating Dairy Cows / Journal of Dairy Science 81(11):2866~2873
Michael S. Allen / 2000 / Effects of Diet on Short-Term Regulation of Feed Intake by Lactating Dairy Cattle / Journal of Dairy Science 83(7):1598~1624
AOAC / 2000 / Official methods of analysis
Black AL. / 1952 / Acetate by max / Journal of Biological Chemistry 197:371~379
T.F. Duffield / 1998 / Efficacy of Monensin for the Prevention of Subclinical Ketosis in Lactating Dairy Cows / Journal of Dairy Science 81(11):2866~2873
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