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LSU Doctoral Dissertations

Theses/Dissertations

2004

Poultry

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The Effects Of Inorganic And Organic Selenium Sources On Growth Performance, Carcass Traits, Tissue Mineral Concentrations, And Enzyme Activity In Poultry, Robert L, Iii Payne Jan 2004

The Effects Of Inorganic And Organic Selenium Sources On Growth Performance, Carcass Traits, Tissue Mineral Concentrations, And Enzyme Activity In Poultry, Robert L, Iii Payne

LSU Doctoral Dissertations

The purpose of this research was to compare dietary inorganic and organic Se sources in poultry. An experiment was conducted to assess daily egg production and Se deposition in eggs of hens fed diets supplemented with inorganic or organic Se. The results from this experiment indicated that hen production was not affected by Se source, and organic Se increased egg Se concentrations more than inorganic Se. Two experiments then were conducted with broilers to compare dietary organic and inorganic Se on growth performance, carcass traits, breast and plasma Se concentrations, and plasma glutathione peroxidase activity. The results from these experiments …


The Non-Phosphorus Effects Of Dietary Phytase In Swine And Poultry, Jason Layne Shelton Jan 2004

The Non-Phosphorus Effects Of Dietary Phytase In Swine And Poultry, Jason Layne Shelton

LSU Doctoral Dissertations

This research was conducted to determine the non-phosphorus effects of phytase in diets for swine and poultry. An experiment was conducted to determine the effect of phytase addition on energy availability and protein and fat deposition in growing pigs. Results from this experiment indicated that phytase had small positive effects on energy availability, protein deposition, and fat deposition. In this study, 23 of 29 response variables were at least numerically increased with phytase addition. Two experiments were conducted to determine the accuracy of the energy and amino acid matrix values for Natuphos 1200 in broilers from 0 to 21 or …