Biochemical Studies on Vitamin B<sub>12</sub>. IV. Relation between Vitamin B<sub>12</sub> Nutrition in Poultry and Vitamin B<sub>12</sub>-forming Actinomycetes.
نویسندگان
چکیده
منابع مشابه
Optimal nutrition: vitamin E.
Interest in the role of vitamin E in disease prevention has encouraged the search for reliable indices of vitamin E status. Most studies in human subjects make use of static markers, usually alpha-tocopherol concentrations in plasma or serum. Plasma or serum alpha-tocopherol concentrations of < 11.6, 11.6-16.2, and > 16.2 mumol/l are normally regarded as indicating deficient, low and acceptable...
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In a previous investigation 2 the writers studied the vitamin B content of poultry flesh and eggs. In this paper they report the results of experiments conducted with rats for the purpose of determining the vitamin A value of the body flesh and fat of several species of domestic fowl. These tests were made on fowls reared under ordinary conditions and fed rations which were in general use. The ...
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Vitamin D deficiency is known as the most common nutritional deficiency. It is created during infancy due to different factors, including decreased dietary intake, decreased dermal synthesis, malabsorption, enzyme-inducing medications, and exclusive breastfeeding. Vitamin D deficiency is associated with poor bone health such as rickets and osteomalacia in children. Despite vitamin D plays an im...
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Domestic animals, including ruminants, can synthesize vitamin C (VC) in their liver; as such, the dietary requirement for VC has not been confirmed in these animals. The adequacy of VC has been evaluated by quantifying VC levels in plasma, but the reported values in bovine plasma have been widely variable. Plasma VC concentration is decreased by heat stress, hepatic lesions, fattening, and infe...
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A floor pen study was conducted to determine the efficacy of vitamin D source and level on performance and bone mineralization of broilers fed dietary treatments for six weeks. Dietary treatments included: 1) Basal diet supplemented with NRC recommended levels of vitamin D3 (200,000 ICU/ton); 2) Basal plus 2.5 million ICU (MICU) D3 /ton; 3) basal plus 2.5 MICU D3/ton plus 62.5 mg Hy-D/ton; 4) b...
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ژورنال
عنوان ژورنال: Proceedings of the Japan Academy
سال: 1952
ISSN: 0021-4280
DOI: 10.2183/pjab1945.28.578