Thesis - Open Access
Master of Science (MS)
Department / School
Two experiments were conducted using corn-soybean diets to study the effect of protein levels and methionine, lysine, and furazolidone supplementations on the performance of SCWL laying hens. In the first experiment hens in floor pens and in cages were fed 12, 13.4, and 16 percent protein diets with and without 25 grams of furazolidone per ton. The results of this experiment indicated that 13.4 percent protein was required for maximum egg production by hens in cages whereas 12 percent protein was adequate under floor pen management conditions. Furazolidone appeared to be most effective in increasing egg production when it was added to the lower protein diets. In the second experiment hens in flor pens and cages were fed a 16 percent protein corn-soybean diet and an 11 percent protein corn-soybean diet supplemented with methionine and a combination of methionine and lysine. Each diet was fed with and without 25 grams of furazolidone per ton. The results of this experiment indicated that optimum egg production and egg size cannot be obtained on an 11 percent protein diet. The addition of methionine to the above diet did not improve egg production, whereas, the combination of methionine and lysine consistently improved egg production.
Library of Congress Subject Headings
Poultry -- Feeding and feeds
Includes bibliographical references
South Dakota State University
Stangeland, Virgil Allen, "Studies on the Protein Requirements of Laying Hens" (1962). Electronic Theses and Dissertations. 2855.