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KMID : 1023620110350030395
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Reproductive and Developmental Biology
2011 Volume.35 No. 3 p.395 ~ p.398
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The Accuracy Analysis and Applied Field Research of a Newly Developed Automatic Heat Detector in Dairy Cow
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Baek Kwang-Soo
Lee Wang-Shik
Park Seong-Jai
Lim Hyun-Joo
Son Jun-Kyu
Kim Sang-Bum
Kwon Eung-Gi
Jung Yeon-Sub
Kim Kwang-Hyun
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Abstract
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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).
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KEYWORD
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Heat detector, Heat detection rate, Conception rate
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