Zinc Requirement Studies with Practical Rations
نویسندگان
چکیده
منابع مشابه
Zinc, Copper, Manganese, and Selenium in Dairy Cattle Rations
The trace minerals zinc, copper, manganese, and selenium are components of a wide variety of enzymes and proteins that support metabolism, growth, production, and reproduction. Trace mineral supplements are added to dairy cattle rations to prevent mineral deficiencies, and supplementation has traditionally been provided in the form of inorganic salts. When these inorganic salts dissociate in th...
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some reports indicate a wide range for zn requirements for broiler chickens i.e. from 10.6 to 105 mg kg-1. a number of factors other than dietary zn concentration determine the need for supplementation, principally dietary phytate. therefore, the objective of the present investigation was reevaluation of the zinc requirement for broiler, fed practical diet supplemented with phytase in a dose-re...
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The requirement for Zn(++) in DNA replication by phytohemagglutinin-stimulated human lymphocytes was studied. When 6 microM o-phenanthroline, a chelator with a high affinity for Zn(++), is added to cultures of stimulated lymphocytes a nearly complete inhibition of thymidine incorporation results within a few hours. In contrast, the incorporation of uridine is only slightly reduced and the incor...
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Introduction Ionophores have been used extensively in the beef industry in Canada since 1977. Until recently, there has been no label indication for use of ionophores in lactating dairy cattle. Ionophores are feed additives that alter rumen microbial populations through ion transfer across cell membranes. In Canada, the label warning prohibiting the use of Rumensin premix in lactating dairy ca...
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Requirements Engineering techniques, based on the fundamental notions of agency, i.e., Agent, Goal, and Intentional Dependency, have been recognized as having the potential to lead towards a more homogeneous and natural software engineering process, ranging from high-level organization needs to system deployment. However, the availability of simple representational tools for Requirements Engine...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1959
ISSN: 0032-5791
DOI: 10.3382/ps.0380436