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Cornell University3, Ithaca, N. Y. 14853
Abstract
Beagle bitches were fed 20 or 40% dried brewers grains (DBG) or the same percentages of a mixture of 95% DBG and 5% dried brewers yeast (DBGY) in extruded diets. Seven bitches were fed each diet for 12 months. The diets containing DBG or DBGY were comparable to a control containing no brewery byproducts for maintaining general appearance, health and body weight. The percentages of puppies born alive and puppies born alive that were weaned were likewise comparable. Birth weights were lowest for puppies born to bitches fed the diet containing 40% DBG (P<05) followed by 40% DBGY. Weaning weights were lowest with 40% DBG followed by 40% DBGY but these differences compared to control were not statistically significant. Two replicates of 35 puppies were fed 20 or 40% DBG or DBGY from 6 to 26 weeks of age. None of the differences in growth rates, efficiency of feed utilization or protein efficiency ratios were statistically significant. Growth rates for puppies on all diets were comparable to accepted standards. The apparent digestibility of all dietary components and metabolizable energy values were lower than control for diets containing DBG or DBGY for mature bitches or puppies but the differences were not statistically significant.
1 Supported in part by a grant from the U. S. Brewers Association, Washington, D.C. The authors acknowledge the assistance of O. D. Shattuck in the conduct of these studies.
2 Present address: School of Basic Medical Sciences, University of Illinois, Champaign-Urbana, Urban. 61801.
3 Department of Animal Science.
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