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4,000원
원문정보
초록
영어
The objective of this study was to compare the accuracy analysis and the effect of field application of a newly developed automatic heat detector in dairy cows. From 2009 to 2010, we used 48 Holstein cows (mounting cows : 38 heads, standing cows : 10 heads) raised in experimental barn of National Livestock Research Institute (RDA) for the accuracy analysis of automatic heat detector, and 14 Holstein cows raised in three commercial dairy farms of Cheonan and Pochun area for comparison of the effect of field application. The accuracy of response in cows attached with automatic heat detector was 86.8% (33/38) displayed on board when mounting activity observed, and 100% (10/10) when standing activity observed, and on average, 90.0% (43/48) displayed on board. The accuracy of automatic heat detector in on-farm test was 85.7% (12/14), and conception rate was 75.0% (9/12).
목차
ABSTRACT 서론 재료 및 방법 공시동물 및 장소 발정탐색기 발정 관찰 및 인공수정 결과 및 고찰 인용문헌
키워드
Heat detectorHeat detection rateConception rate
저자
백광수 [ Kwang-Soo Baek | 농촌진흥청 국립축산과학원 낙농과 ]
이왕식 [ Wang Shik Lee | 제주대학교 생명공학부 ]
Corresponding author