黑白花奶牛犊牛的行为观测

An Observation on the Behavior of Holstein--Friesian Cow Calves

通过对２５头黑白花奶牛初生犊牛的行为观察，结果表明，初生犊牛最早吃乳时间１．１±０．１２小时，最早吃料时间７．５±２．３天，最早吃草时间１０．５±１．７５天。每日活动时间１月龄前为１．８±０．１６小时，断乳后为５．７±１．６４小时；休息时间１月龄前为１６．１０±４．７５小时，断乳后为１３．０４±３．７８小时；反刍时间１月龄前为４．１６±１．５５小时，断乳后为６．５０±２．９３小时；反刍次数１月龄前为１４．１６±１．７５次／日，断奶后为１１．７８±１．４８次／日。

The observation on the behavior of 25 Holstein-Friesian cow calves,Shows that calves begin to eat milk 1.1±0.12 hours,to eat feed 7.5 ±2. 3 days and toeat havs 10.5±1.75 day after birth.Every day,they move about 1. 8 hours before 1month's age and 5.7 hours after weaning,rest 16.1 hours before l month’s age and13. 04 hours after weaning, ruminate 249.47±48.12 minutes before 1 month’s age and390. 15±63. 83 minutes after weaning,ruminate 14.16 ± 1. 75 times before i month’sage and 11.78±1.48 times aftter weaning.Key wores Holstein-Friesian cow; Calf;Behavior;Pursuing observetion