Document Type

Thesis - Open Access

Award Date


Degree Name

Doctor of Philosophy (PhD)


Poultry Science


Approximately two decades ago Robertson et al. (1948) reported that high-energy diets supported faster growth of young chicks with an improvement in feeding efficiency. This seemed to open an era in poultry nutrition in which much work was conducted in order to establish the quantitative relationships between dietary energy levels and nutrients. With current emphasis on the energy content of the diet, a knowledge of those factors which interfere with the most efficient utilization of energy is important. Nutritional imbalance was shown by Sure (1941) to decrease the net energy or productive energy content of the diet. The B complex vitamins are also associated with growth, efficiency of production and general health of monogastric animals. Various nutritional levels of thiamine, riboflavin, pyridoxine, pantothenic acid and niacin were investigated. The objectives of this study was to determine: if and to what degree each vitamin deficiency depressed the efficiency of metabolizable energy utilizable by the chicks, the relationship between liver vitamin storage and growth, the effects of vitamin deficiency upon the basal metabolism rate, the effect of deutectomy on B vitamin depletion time.

Library of Congress Subject Headings

Poultry -- Diseases


Includes bibliographical references



Number of Pages



South Dakota State University