Written in English
Thesis (M. Agr.)--The Queen"s University of Belfast, 1982.
|The Physical Object|
The Effects of High Dietary Zinc on Food Intake in the Domestic Fowl M. J. GENTLE, W. A. DEWAR, P. A. L. WIGHT and K. M. DICK Agricultural Research Council's Poultry Research Centre, Scotland Adult hens given a diet containing 8,mgjkg or more of zinc in the form of zinc oxide showed a significant reduction in food intake within the first hour of food by: 7. Effects of short- and long-term feeding of zinc oxide-supplemented diets on the mature, female domestic fowl with special reference to tissue mineral content - Volume 55 Issue 2 - N. Jackson, S. W. Gibson, M. H. StevensonCited by: It is also evident from the previous literature that most of the studies on molting pertain only up to a second production cycle while information on the specific effects of high levels of dietary zinc oxide (3 g/kg feed) on the distribution and storage of trace minerals in the serum and eggs during a third production cycle have been by: 8. In the present study, the effects of dietary supplementation of organic and inorganic Mn, Zn, Cu, and Cr mixtures using two different levels (80, 60, .
STEVENSON, M.H., JACKSON, N. and GIBSON, S.W. () Withdrawal of zinc oxide containing diets from mature female domestic fowl: Effects on laying performance and the weights of selected tissues. British Poultry Science The children in these studies received 4–40 mg of zinc a day in the form of zinc acetate, zinc gluconate, or zinc sulfate. In addition, results from a pooled analysis of randomized controlled trials of zinc supplementation in developing countries suggest that zinc helps reduce the duration and severity of diarrhea in zinc-deficient or. The secretion of luteinizing hormone (LH) from the avian pars distalis is regulated by the hypothalamus. The early work in support of this notion has been extensively reviewed (Dodd et al., ).In brief, evidence for the hypothalamic control of LH release has come from observation of gonadal atrophy following transplantation of the pituitary to a site away from the sella turcica or after. Other reports of low-zinc milk exist (). However, there is a paucity of controlled experimental data on the effects of feeding low-zinc diets on milk zinc content. Feeding high dietary zinc increases zinc con- tent in milk (1, 60, ). By increasing dietary zinc, there is a rapid decline in the dietary zinc percentage which appears in milk.
least 2 hours before or 4–6 hours after taking a zinc dietary supplement helps minimize this effect. • Zinc dietary supplements can reduce the amount of penicillamine (a drug used to treat rheumatoid arthritis) that the body absorbs. They also make penicillamine work less well. Taking zinc dietary supplements at least 2 hours before. Zinc functions as a component of various enzymes in the maintenance of the structural integrity of proteins and in the regulation of gene expression. Overt human zinc deficiency in North America is not common, and the symptoms of a mild deficiency are diverse due to zinc's ubiquitous involvement in metabolic processes. Factorial analysis was used to set the Estimated Average Requirement (EAR). Zinc absorption was 92% from the low zinc diet and 81% from the high zinc diet. Wada et al. () performed similar stable isotope studies in young men and found that zinc absorption from the diet was 53% when the zinc intake was mg/d and that it decreased to 25% when mg/d was fed. The source of supplemental zinc used in most of the cited studies was zinc sulfate or zinc chloride. Availability of zinc varies among sources (Wedekind and Baker, ). In a diet containing egg white as the primary protein source, the requirement for zinc is only 14 to 18 mg/kg (Southern and Baker, b; Dewar and Downie, ).