夏季不同牛棚顶结构对牛舍环境和奶牛行为的影响OA

This study aims to investigate the effects of various roof structures in cowsheds on the tem-perature,humidity,light intensity,and lying and rumination behaviors of dairy cows.Two cowsheds loca-ted in the same geographical environment were selected,one with a color steel roof and the other with a membrane structure roof.Each group consisted of(90±10)Holstein lactating cows,with similar age,lac-tation period,milk yield,and parity.The experimental duration was 30 days.The results indicated that:(1)compared to the color steel roof group,the membrane structure roof group exhibited a significant in-crease in light intensity in the morning,afternoon,and throughout the day(P＜0.05).(2)The membrane structure roof group showed no significant impact on the temperature,humidity,or temperature-humidity index within the barn;(3)There was a trend towards an increased afternoon lying time in the membrane structure roof group(P=0.053),while there was no effect on the rumination rate of the cows.These re-sults suggest that different roof structures in cowsheds can influence the internal environment and behav-iors of dairy cows,with the membrane structure roof enhancing light intensity and improving the lying be-havior of the cows.