This research communication describes the influence of diet, mammary quarter position and milking process on the temperature of teats and udder of cows fed diets containing different lipid sources. Five primiparous cows were fed diets containing cottonseed, sunflower seed, soybeans or soybean oil as a source of lipids and a reference diet without the inclusion of lipid sources in a 5 × 5 Latin Square design. Milk yield was determined in the last five days of each period. Milk samples were collected for SCC analysis on the last two days of each experimental period. The images of the mammary gland were obtained using an infrared camera and were analyzed with appropriate computer software. Milk yield was 14.8% higher for cows fed soybeans as a source of lipids. Diets and somatic cell counts did not influence the temperature of teats and udder. The milking process reduced the temperature of teats and udder by 0.79°C. Rear teats and rear quarters had higher surface temperatures than front teats and fore quarters. Changes in temperature of teats and mammary quarters occurred as a function of the milking process and quarter position. However, the diet and the SCC did not influence the temperature of teats and mammary quarters in this experiment.

中文翻译：

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通过红外热成像测量的乳腺皮肤表面温度，在初产 Girolando 奶牛喂食含有不同脂质来源的饮食

本研究通讯描述了日粮、乳房位置和挤奶过程对饲喂含有不同脂质来源日粮的奶牛乳头和乳房温度的影响。5 头初产奶牛饲喂含有棉籽、葵花籽、大豆或大豆油作为脂质来源的日粮，以及在 5 × 5 拉丁方设计中不包含脂质来源的参考日粮。在每个时期的最后五天确定产奶量。在每个实验期的最后两天收集牛奶样品用于 SCC 分析。使用红外相机获得乳腺图像，并使用适当的计算机软件进行分析。以大豆作为脂质来源的奶牛的产奶量增加了 14.8%。饮食和体细胞计数不影响乳头和乳房的温度。挤奶过程将乳头和乳房的温度降低了 0.79°C。后乳头和后部的表面温度高于前部乳头和前部。乳头和乳房区域的温度变化是挤奶过程和乳房位置的函数。然而，在这个实验中，饮食和 SCC 并没有影响乳头和乳房的温度。