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Mission: The mission of the Growth Biology Laboratory is to: (1) examine pre- and post-translational genetic determinants that influence nutrient utilization for lean tissue deposition by livestock; (2) determine practical approaches to implement near-market technologies affecting fat:protein ratio into livestock production agriculture; (3) optimize and validate nondestructive techniques for the prediction of live animal composition; and (4) assess nutrient/management variables and metabolism modifiers on target animal health, well-being, product quality and safety.
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Dr. John P. McMurtry Acting Research Leader Research Animal Scientist (Poultry) Bldg. 201, Rm. 5, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 301/504-8803/8857 email: mcmurtry@lpsi.barc.usda.gov |
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Biological action of insulin-like growth factors and other peptide hormones during avian embryogenesis and post-hatch growth. Peripheral control of feed intake. Development of avian peptide hormone assays. |
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Dr. Thomas J. Caperna Research Biologist (Swine) Bldg. 200, Rm. 202, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 301/504-8506 email: caperna@lpsi.barc.usda.gov |
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Mechanisms of peptide hormone and growth factor action in swine. Characterization of protein hormone binding proteins in tissues. Develop methods to isolate and culture hepatic cells. |
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Dr. Theodore H. Elsasser Research Animal Scientist (Beef cattle) Bldg. 200, Rm. 120, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 email: elsasser@lpsi.barc.usda.gov |
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Biochemical and physiological mechanisms of action of growth promoters and growth related hormones affecting the production of livestock. |
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Dr. Alva D. Mitchell Research Animal Scientist (Swine) Bldg. 200, Rm. 205A, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 301/504-8868 email: mitchell@lpsi.barc.usda.gov |
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Develop and validate image analysis for direct, nondestructive, determination of body composition in swine. Nutrient factors affecting anabolic actions of beta-adrenergic agonists. |
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Dr. Timothy Ramsey Research Physiologist Bldg. 200, Rm. 207, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 301/504-5958 email: tramsay@lpsi.barc.usda.gov |
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Manipulation of feedback mechanisms for regulation of feeding behavior in livestock. Endocrine and paracrine regulation of adipose tissue gene expression in swine. |
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Dr. Mark P. Richards Research Animal Scientist (Poultry) Bldg. 200, Rm. 206A, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 301/504-8892 email: richards@lpsi.barc.usda.gov |
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Peripheral control of feed intake. Development of molecular techniques to assess tissue gene expression. Role of leptin in avian embryogenesis. |
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Dr. Robert W. Rosebrough Research Animal Scientist (Poultry) Bldg. 200, Rm. 212, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 301/504-8866 email: rosebro@lpsi.barc.usda.gov |
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Neuroendocrine control of appetite and energy metabolism in poultry. Regulation of lipid metabolism. |
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Dr. Norman C. Steele Research Animal Scientist (Swine) Bldg. 200, Rm. 101B, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 301/504-7191 email: steele@lpsi.barc.usda.gov |
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Interaction of nutrient and management factors on anabolic effects of growth hormone administration in swine. Factors affecting protein synthesis and degradation. |
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Dr. Christopher Ashwell Research Molecular Biologist Bldg. 201, Rm. 5, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 301/504-5061 email: cashwell@lpsi.barc.usda.gov |
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Research and development work on factors controlling feed intake in major livestock species. |
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Dr. Dianne Wray-Cahen Research Associate Bldg. 200, Rm. 207, BARC-East 10300 Baltimore Avenue Beltsville, MD 20705-2350 301/504-8760 email: dianew@lpsi.barc.usda.gov |
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Investigations on the role of growth modifiers in the regulation of energy metabolism in swine. |