舍饲西镇母牛反刍行为的观测

THE OBSERVATION ON THE RUMINANT BEHAVIOR OF XlZHEN COWS IN THE HOUSING

通过对26头舍饲西镇母牛反刍行为的观测表明1日总反刍时间为405.36±67.079分钟,食后平均反刍来临时间为63.712±30.087分钟,日反刍周期数为14.48±1.918个;每周期反刍食团数为26.75±4.527个;每周期反刍平均持续时间为28.38±5.584分钟;日反刍食团数为384.04±63.74个,咀嚼速度为0.903+0.0897次/秒,食团从吞咽到逆呕的间隔时间为3.96±0.398秒。饲料中粗纤维含量影响牛的反刍行为。并论证出日总反刍时间、每周期反刍平均持续时间、食团从吞咽到逆呕的间隔时间以及日反刍食团数,可作为该品种的种质标记特征。

The ruminant behaviors of 26 Xizhen Cows in the housing were observed,The results have showed that the ruminant time every day is 405.36± 67.079 minutes,the beginning ruminant time after Ingeshing is 63.712±30.08 minutes,the ruminant period numbers in every day is 14,49±1.918,the rum- inant cud numbers every period is 26.75±4.527,the ruminant average continuous time every period is 28.38±5.584 minutes,the ruminant cud numbers every day is 384.04±63.74 the chew cud speed every second is 0.903±0.0897,the interval time of the cud from swallow to counter vomit is 3.96±0.398 second.The con- tent of crude fiber have influence on the ruminant behavior.And it is showed that:the ruminant time every day,the ruminant average continuous time every period,the intervaltime of the cud from swallow to counter vomit and the rum- inant cud numbers can be regarded as the germplasm mark character of Xizhen Yellow Cattle.