Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 2
Book Description
Serum Copper Concentrations of U.S. Beef Cattle
Author: Diagnosis, Epidemiology and Immunologic Consequences of Copper Deficiency in Calves
Author: Ronald Kenneth TessmanPublisher:
ISBN:
Category : Cattle
Languages : en
Pages :
Book Description
Copper is an essential micronutrient. Copper deficiency has been associated with disease states that decrease commercial beef production. Clinical manifestations of copper disease include anemia, diarrhea, long bone fractures, generalized ill-thrift, and decreased fertility. Recent studies have demonstrated that copper deficiency is common in North American beef cattle. This body of work addresses diagnosis, epidemiology and the immunologic consequences of copper deficiency in calves. For serum copper concentration of 0.45 ug/g as a test endpoint, serum copper concentration had sensitivity of 0.53 and specificity of 0.89 for detection of low liver copper concentration. A number of management factors were significantly associated with either serum copper concentration or copper status. The relationship between geographic areas of copper deficiency occurrence and the state's two major rivers, the Missouri and Mississippi, was the most intriguing factor identified. The true influence of these rivers could not be determined with this study, but it warrants further investigation. The binomial distribution was used to calculate the probability of k positive test results in n trials at varying prevalences. This process provided a de facto hypothesis test for the lower 95% confidence limit of prevalence. The binomial model provided a more satisfactory method to interpret imperfect test results than the z-distribution for population proportions. In relation to copper supplementation there were no statistically significant differences in the immunologic parameters studied. This however, may not represent the true benefit copper supplementation may have on copper deficient calves.
Serum Zinc Concentrations of U.S. Beef Cattle
Author: Serum Copper Concentrations of Crossbred Cattle in Peninsular Malaysia
Author: Muniandy N.Investigations of the Severity, Extent, Type and Treatment of Copper Deficiency in Beef Cattle in Northwestern Manitoba
Author: Robert Andrew DrysdalePublisher:
ISBN:
Category :
Languages : en
Pages : 728
Book Description
Blood serum, forage and soil samples were collected from beef cattle of forty-four herds in the North West agricultural region of Manitoba. Copper deficiency was identified in all herds and related to low copper and/or excessive molybdenum in the pasture forages. The forages also indicated a potential zinc and manganese deficiency in the cattle at these locations. The low concentrations of copper, zinc and manganese in the forages were attributed to low content of copper and zinc and to low availability of copper, zinc and manganese in the soil. Parenteral administration of copper glycinate at the start of the pasture season was insufficient to affect weight gains or to maintain normal serum copper values during the grazing period. A soil and forage survey was undertaken in the agriculturally productive area of the North West region. Differences in nutrient concentrations were identified among forage types. The forage analyses confirmed potential primary deficiencies of copper, zinc and manganese in relation to cattle production. Elevated molybdenum levels were identified in legumes throughout the region and in grasses confined to the soils derived from the shale bearing Ashville, Favel, Vermillion River and Riding Mountain Geologic Formations. Supplementation of cooper, zinc and manganese is indicated for cattle in northwestern Manitoba and other areas of the province with similar geologic factors.
Journal of the American Veterinary Medical Association
Author: American Veterinary Medical AssociationPublisher:
ISBN:
Category : Veterinary medicine
Languages : en
Pages : 938
Book Description
Vols. for 1915-49 and 1956- include the Proceedings of the annual meeting of the association.
Metals in Medicine
Author: James C. DabrowiakPublisher: John Wiley & Sons
ISBN: 1119191343
Category : Science
Languages : en
Pages : 751
Book Description
Working from basic chemical principles, Metals in Medicine, 2nd Edition describes a wide range of metal-based agents for treating and diagnosing disease. Thoroughly revised and restructured to reflect significant research activity and advances, this new edition contains extensive updates and new pedagogical features while retaining the popular feature boxes and end-of-chapter problems of the first edition. Topics include: Metallo-Drugs and their action Platinum drugs for treating cancer Anticancer agents beyond cisplatin including ruthenium, gold, titanium and gallium Responsive Metal Complexes Treating arthritis and diabetes with metal complexes Metal complexes for killing bacteria, parasites and viruses Metal ion imbalance and its links to diseases including Alzheimer's, Wilson's and Menkes disease Metal complexes for detecting disease Nanotechnology in medicine Now in full colour, Metals in Medicine, 2nd Edition employs real-life applications and chapter-end summaries alongside feature boxes and problems. It provides a complete and methodical examination of the use of metal complexes in medicine for advanced undergraduate and postgraduate students in medicinal inorganic chemistry, bioinorganic chemistry, biochemistry, pharmacology, biophysics, biology and bioengineering. It is also an invaluable resource for academic researchers and industrial scientists in inorganic chemistry, medicinal chemistry and drug development.
Guidelines for Uniform Beef Improvement Programs
Author: Dixon D. HubbardPublisher:
ISBN:
Category : Beef
Languages : en
Pages : 84
Book Description
Nutrient Requirements of Beef Cattle
Author: Subcommittee on Beef Cattle NutritionPublisher: National Academies Press
ISBN: 0309069343
Category : Technology & Engineering
Languages : en
Pages : 249
Book Description
As members of the public becomes more concious of the food they consume and its content, higher standards are expected in the preparation of such food. The updated seventh edition of Nutrient Requirements of Beef Cattle explores the impact of cattle's biological, production, and environmental diversities, as well as variations on nutrient utilization and requirements. More enhanced than previous editions, this edition expands on the descriptions of cattle and their nutritional requirements taking management and environmental conditions into consideration. The book clearly communicates the current state of beef cattle nutrient requirements and animal variation by visually presenting related data via computer-generated models. Nutrient Requirements of Beef Cattle expounds on the effects of beef cattle body condition on the state of compensatory growth, takes an in-depth look at the variations in cattle type, and documents the important effects of the environment and stress on food intake. This volume also uses new data on the development of a fetus during pregnancy to prescribe nutrient requirements of gestating cattle more precisely. By focusing on factors such as product quality and environmental awareness, Nutrient Requirements of Beef Cattle presents standards and advisements for acceptable nutrients in a complete and conventional manner that promotes a more practical understanding and application.
Mineral Tolerance of Animals
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309096545
Category : Technology & Engineering
Languages : en
Pages : 510
Book Description
Excess minerals in the diet and water of animals can have an adverse effect on animal health, consumers, and the environment. Preventing unsafe mineral exposure is a fundamental part of animal nutrition and management. At the request of the Food and Drug Administration, the National Academies convened a committee to make recommendations on animal tolerances and toxic dietary levels, updating a 1980 report on mineral tolerance in domestic animals. Based on a review of current scientific data and information, the report sets a "maximum tolerable level" (MTL) for each mineral as it applies to the diets of farm animals, poultry, and fish. The report includes an analysis of the effects of toxic levels in animal diets, and it identifies elements that pose potential human health concerns. The report recommends research that includes a better characterization of animal exposure to minerals through feedstuffs; a better understanding of the relationship between mineral concentrations in feed and water and the levels in consumer products such as meat, milk, and eggs; and more research on the maximum tolerable level of minerals for aquatic and companion animals.