In order to provide basic data to predict changes of milk components in milk yield, this study was conducted to compare nutritive values of diets collected from organic dairy farms (ODF) and conventional dairy farms (CDF) of Chungnam and Jeonbuk in Korea. The contents of crude fat, crude fiver, neutral detergent fiber, and acid detergent fiber in diets of ODF were significantly (p<0.05) higher compared to those of CDF. The contents of crude protein and crude ash in ODF were also higher (p<0.05) than those of CDF. The contents of calcium, ferrum, and phosphorus in diets of ODF were similar to those of CDF. The contents of potassium, magnesium, and iodine in diets of ODF were higher (p<0.05) than those of CDF. The contents of total saturated and unsaturated fatty acids in diets of ODF were higher (p<0.05) compared to those of CDF. The contents of oleic acid, linoleic acid, and linolenic acid in diets of ODF were higher (p<0.05) compared to those of CDF. However, the contents of myristic acid, palmitic acid, and stearic acid in diets of ODF were lower (p<0.05) compared to those of CDF.

Ⅰ. 서 론
 Ⅱ. 재료 및 방법
  1. 사료샘플 수집
  2. 사료 분석
  3. 통계처리
 Ⅲ. 결과 및 고찰
  1. 일반 및 유기우유 생산농가의 급여사료 사료가치
  2. 일반 및 유기우유 생산농가의 급여사료 지방산 함량
  3. 급여사료 무기물 함량
 Ⅳ. 요 약
 Ⅴ. 사 사
 Ⅵ. REFERENCES

• 기광석(농촌진흥청 국립축산과학원) | Kwang Seok Ki
• 임동현(농촌진흥청 국립축산과학원) | Dong Hyun Lim
• 김태일(농촌진흥청 국립축산과학원) | Tae Il Kim
• 박성민(농촌진흥청 국립축산과학원) | Seong Min Park
• 임현주(농촌진흥청 국립축산과학원) | Hyun Joo Lim
• 최기춘(농촌진흥청 국립축산과학원) | Ki Choon Choi Corresponding author