Thesis (M.Sc. (Agric.)(Animal and Wildlife Sciences)) -- University of Pretoria, 2009. / Abstract in English. Includes bibliographical references.

Two growth trials were designed to measure the effects of: (1) dietary Virginiamycin (0 or 16.5 mg/kg) and added fat (0 or 4%), and (2) Virginiamycin (0 or 16.5 mg/kg) and dietary lysine levels (low, NRC, high) individually, and in combination on broiler performance. A third trial investigated the relationship of plasma glucose, triglyceride and phospholipid concentrations with degree of fatness/leanness in genetically lean and fat broiler chickens. A combination of supplemental fat and Virginiamycin increased protein and decreased fat content of the dressed carcass. Virginiamycin supplementation overcame the growth depression of a low lysine diet by increasing feed intake. In the low lysine diet, Virginiamycin supplementation reduced abdominal fat deposition in females and increased carcass yield in males. Carcass protein content was increased by feeding the NRC-recommended level of lysine or by Virginiamycin supplementation. (Abstract shortened by UMI.)

Corrigenda inserted behind title page. / Bibliography: leaves 275-306. / xxxv, 306 leaves : ill. (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / The pattern of body growth and intestinal development of an Australian strain of broiler chicken, the Steggles x Ross (F1) in response to different diets was studied. Five experiments were designed to examine the pattern of growth and mechanisms involved. In four other experiments, the mechanisms underlying the gross response of the broiler chicks to dietary ingredients, anti-nutritive factors and growth enhancers were examined. Results indicated that a rapid development of the small intestine preceded significant overall body growth. Body growth would, however, depend more on the various physiological events such as those related to mucosal growth and renewal, digestive enzyme function, and nutrient transport. Some of the differences observed in productivity of broiler chickens on different diets were traced to events at the intestinal level. / Thesis (Ph.D.)--University of Adelaide, Dept. of Animal Sciences, 1999

No description available.

Thesis (M.App.Psy.)--University of Waikato, 2007. / Title from PDF cover (viewed March 19, 2008) Includes bibliographical references (p. 60-63)

Thesis (Ph. D.)--University of Missouri-Columbia, 1999. / Typescript. Vita. Includes bibliographical references (leaves 114-128). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 1999. / Typescript. Vita. Includes bibliographical references (leaves 114-128). Also available on the Internet.

Thesis (MSc. (Veterinary Science))--University of Pretoria, 2005. / Includes bibliographical references.

The purpose of this study has been to analyze the effect of market regulation in the broiler industry in British Columbia and Washington State by comparing and contrasting the structure, conduct and performance of two institutions established to provide a degree of organization by producers in the marketing of broiler chickens. The two institutions studied have been the B.C. Broiler Marketing Board, in the province of British Columbia, Canada and the Washington Fryer Commission, in the state of Washington, United States of America. An analysis of the structure and conduct of the B.C. Broiler Marketing Board and the Washington Fryer Commission has been presented. An objectives model for organized marketing in the agricultural sector has been proposed, and from this model criteria have been chosen upon which to evaluate the market performance of the two structures with respect to organized marketing. It has been observed that the powers held by the B.C. Broiler Marketing Board are far more extensive than those held by the Washington Fryer Commission. It has been further observed that the performance of the B.C. Broiler Marketing Board has been primarily restrictive in nature and has had serious negative effects on the market environment for broiler chickens in British Columbia. The performance of the Washington Fryer Commission has been supportive in nature, and has had a positive effect on the market environment for broiler chickens in Washington State. In analysing the two approachs to organized marketing in the broiler industry, it has been concluded that the vesting of powerful tools of market regulation with primary producer groups (whose interests are narrowly defined) leads to inefficiencies in production and marketing which have serious effects on the industry as a whole. / Land and Food Systems, Faculty of / Graduate

No description available.