This study was conducted to compare and analyze the crop-livestock circulation indicators, manure compost circulation, nutrient circulation, and carbon footprint of organic and conventional dairy farms. The survey farms were 13 organically certified dairy farms and 12 conventional dairy farms. A field survey was conducted in 2024. The forage crop cultivation area per head (LSU) of organic dairy farms was 1,539.8 ㎡, which was 2.3 times more than the 682.9 ㎡ of conventional dairy farms. The livestock density index, which indicates the number of cattle per acre of farmland, was lower in organic dairy farms (6.4 LSU/ha) than in conventional dairy farms (9.3 LSU/ha). The self-produced feed feeding rate of organic dairy farms was 31.9%, which was 12.6% higher than 19.3% in conventional dairy farms. The domestically purchased feed feeding rate was 11.6% in organic certified farms (11.6% lower than 22.5%). The imported concentrate feed feeding rate was 33.2% in organic certified farms and 37.5% in conventional dairy farms, which showed no significant difference. The area of forage crops in organic dairy farms was 0.15 ha/head, which was higher than 0.11 ha/head in conventional farms. The annual milk production of organic dairy farms was 10,101 kg, which did not show a significant difference from conventional farms. The local circulation and Off-farm transfer rates of compost in organic certified farms were 5.1% and 0.4%, respectively, which were lower than those in conventional farms. The annual surplus nitrogen per cow (LSU) was 92.1 kg in organic dairy cow certified farms, which was 20% lower than 115.4 kg in conventional farms. The carbon footprint per kg of milk was 1.16 kgCO2eq in organic certified farms, which was 28% lower than 1.61 kg CO2eq in conventional farms.

ABSTRACT
Ⅰ. 서론
Ⅱ. 재료 및 방법
    1. 조사 대상 젖소 농가 현황
    2. 조사 항목 및 방법
    3. 통계분석
Ⅲ. 결과 및 고찰
    1. 유기인증 및 관행 젖소 농가의 경축순환농업 지표
    2. 유기인증 및 관행 젖소 농가의 사료원별 두당 사료급여량
    3. 유기인증 및 관행 젖소 농가의 사료원별 사료 급여율 비교
    4. 유기인증 및 관행 젖소 농가의 작물별 재배면적 비교
    5. 유기인증 및 관행 젖소 농가의 우유 생산량
    6. 유기인증 및 관행 젖소 농가의 퇴비 처리 형태별 순환량 및순환율 비교
    7. 유기인증 및 관행 젖소 농가의 질소 수지
    8. 유기인증 및 관행 젖소 농가의 탄소발자국
Ⅳ. 요약
Ⅴ. 사사
Ⅵ. REFERENCES

• 임진수(상지대학교) | Jin-Soo Lim (Sangji University, Wonju 26339, Republic of Korea)
• 최덕천(상지대학교) | Deog-Cheon Choi (Sangji University, Wonju 26339, Republic of Korea)
• 류종원(상지대학교) | Jong-Won Ryoo (Sangji University, Wonju 26339, Republic of Korea) Corresponding author