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Effects of Feeding Grass and of Sanitation on Growth of Young Dairy Calves under Two Systems of Management

Department of Dairy Husbandry, Alabama Polytechnic Institute, Auburn

ABSTRACT

Growth response of calves raised in a conventional calf barn and those raised in portable outside pens located on clean soil was similar. Grass fed at the rate of 1 lb. per calf daily increased the TDN intake but did not affect feed utilization or rate of gains in body weight within housing groups. Raising calves in portable outside pens located on an area frequented by older cattle depressed gains in weight and gains in height at the withers when compared with raising calves in portable outside pens located on a clean, isolated area. Gains in body weight per pound of TDN consumed were greater for calves raised in conventional housing than for calves raised in portable outside pens.