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Full-Text Articles in Poultry or Avian Science
Effects Of Various Factors On The Rachitogenic Activity Of Isolated Soy Protein, Donald James Arshem
Effects Of Various Factors On The Rachitogenic Activity Of Isolated Soy Protein, Donald James Arshem
Electronic Theses and Dissertations
The nature of the rachitogenic activity of isolated soy protein was investigated in fifteen studies. A RP-100-glucose purified diet was fed to day-old turkey poults housed in stainless steel batteries. Feed and water were provided ad libitum. Corn, oat hulls, solvent-extracted soybean meal, full-fat extruded soybeans, C-1 protein, casein and texturized forms of soy protein were added to the basal diet at various levels. All feedstuffs were added at two particle sizes: natural form of the feedstuff (>250 u); and ground in a ball mill (<250 >u). The effects of autoclaving for 60 minutes at 120°C were also investigated. …
Effects Of Various Levels Of Dietary Selenium And Arsenic On Chickens, Richard L. Arnold
Effects Of Various Levels Of Dietary Selenium And Arsenic On Chickens, Richard L. Arnold
Electronic Theses and Dissertations
Various levels of selenium and arsenic additions were made to several types of chicken diets to study their effects on growth and reproduction criteria. Three experiments were conducted. The first study involved day-old chicks and terminated at 64 weeks of age. These yearling hens were then used for the second experiments which terminated when the hens were 104 weeks old. The third study was initiated with 20 week old pullets and terminated when they were 52 weeks old. Feeding purified diets resulted in slower chick growth and lower mature body weights of hens. Selenium additions of 2.0 ppm resulted in …