Kerr O M, McCaughey W J
Vet Rec. 1984 Jun 23;114(25):605-7. doi: 10.1136/vr.114.25.605.
The value of heat detection by tail painting was assessed by simultaneous visual observation and regular plasma progesterone assay in grazing animals; 88.1 per cent of all heats were accompanied by a positive tail paint record and 30.1 per cent of positive tail paint records occurred in dioestrous animals. Conception rates to the first insemination were 57.6 per cent and 57.9 per cent for heifers and cows, respectively. Of seven animals which showed behavioural oestrus but had intact tail paint, three conceived following insemination. These results suggest that tail paint may be a useful aid in heat detection.
通过对放牧动物同时进行视觉观察和定期血浆孕酮检测，评估了尾涂法检测发情的价值；所有发情中有88.1%伴有尾涂记录阳性，而30.1%的尾涂记录阳性出现在间情期动物中。小母牛和母牛首次输精后的受胎率分别为57.6%和57.9%。在7只表现出行为性发情但尾涂完好的动物中，有3只在输精后受孕。这些结果表明，尾涂法可能有助于发情检测。
