Search Results - "Cowen, B. S."

Changes in pulmonary arterial and femoral arterial blood pressure upon acute exposure to hypobaric hypoxia in broiler chickens by Owen, R L, Wideman, Jr, R F, Cowen, B S

“…An experiment was conducted to investigate the pulmonary arterial and femoral arterial pressure responses to acute hypobaric hypoxia. Twenty-four, 7-wk-old…”
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Detection of viral antigen following exposure of one-day-old chickens to the Holland 52 strain of infectious bronchitis virus by Owen, R.L, Cowen, B.S, Hattel, A.L, Naqi, S.A, Wilson, R.A

“…One-day-old specific-pathogen-free single comb White Leghorn chickens were inoculated by eyedrop with either 0.1 ml of phosphate buffered saline containing 10…”
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Morphometric and histologic changes in the pulmonary system of broilers raised at simulated high altitude by Owen, Robert L., Wideman, R. F., Barbato, G. F., Cowen, B. S., Ford, B. C., Hattel, A. L.

“…Broilers were reared in conditions of hypobaric hypoxia (3500 m altitude) to investigate the development of pulmonary nodules in birds reared in hypobaric…”
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Experimentally induced necrotic enteritis in chickens by Cowen, B.S, Schwartz, L.D, Wilson, R.A, Ambrus, S.I

“…A 1.3 to 10% incidence of necrotic enteritis was experimentally produced in broiler-type chickens in three of five trials. The incidence range observed was…”
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Use of a hypobaric chamber as a model system for investigating ascites in broilers by Owen, R.L. (The Pennsylvania State University, University Park, PA), Wideman, R.F. Jr, Hattel, A.L, Cowen, B.S

“…In a series of experiments, broilers were reared at simulated altitudes of 3000, 3500, and 5000 meters utilizing a hypobaric chamber. The purpose was to…”
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Chicken embryo propagation of type I avian adenoviruses by Cowen, B.S

“…Forty-two clone-purified, cell-culture-propagated type I avian adenoviruses (AAV) representing 11 serotypes and two intermediate strains were evaluated for…”
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The Propagation of Avian Viruses in a Continuous Cell Line (QT35) of Japanese Quail Origin by Cowen, B. S., Braune, M. O.

“…Seven of nine avian virus families tested (Birnaviridae, Coronaviridae, Herpesviridae, Paramyxoviridae, Poxviridae, Reoviridae, and Retroviridae) were found to…”
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A trivalent antigen for the detection of type I avian adenovirus precipitin by Cowen, B.S

“…A double immunodiffusion antigen prepared from cell-culture-propagated CELO virus was not capable of detecting precipitin directed against all of the type I…”
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Order of exposure to high dietary calcium and gray strain infectious bronchitis virus alters renal function and the incidence of urolithiasis by Glahn, R P, Wideman, Jr, R F, Cowen, B S

“…Experiments were designed to determine if Gray strain infectious bronchitis virus (IBV) infection increases the incidence of urolithiasis type kidney damage…”
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Urolithiasis in pullets and laying hens: role of dietary calcium and phosphorus by Wideman, Jr, R F, Closser, J A, Roush, W B, Cowen, B S

“…A study was conducted to test the independent and combined effects of high dietary calcium and low available phosphorus on the incidence of urolithiasis in…”
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Effect of dietary acidification on kidney damage induced in immature chickens by excess calcium and infectious bronchitis virus by Wideman, Jr, R F, Cowen, B S

“…Experiments were designed to evaluate the effect of dietary acidification on the development of kidney lesions induced by excess dietary calcium (Ca) and Gray…”
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Effect of dietary acidification and alkalinization on urolith formation and renal function in Single Comb White Leghorn laying hens by Glahn, R P, Wideman, Jr, R F, Cowen, B S

“…One of the major causes of mortality in poultry is urolithiasis. Although two of the major causes of urolithiasis have been defined, active and preventative…”
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Serotyping of avian infectious bronchitis viruses by the virus-neutralization test [Chickens] by Cowen, B.S, Hitchner, S.B

“…The antigenic relationships of 12 strains of infectious bronchitis virus (IBV) were evaluated by a virus-neutralization procedure similar to that used in…”
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Some observations on the response of ring-necked pheasants to inoculation with various strains of cell-culture-propagated type II Avian adenovirus by Fadly, A.M, Cowen, B.S, Nazerian, K

“…The response of ring-necked pheasants to inoculation with three strains of cell-culture-propagated type II avian adenovirus was examined. Marble spleen disease…”
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pH Stability Studies with Avian Infectious Bronchitis Virus (Coronavirus) Strains by Cowen, B S, Hitchner, S B

“…Article Usage Stats Services JVI Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley…”
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Induction of urolithiasis in single comb white Leghorn pullets: effect on glomerular number by Niznik, R A, Wideman, R F, Cowen, B S, Kissell, R E

“…Urolithiasis was induced in an experimental group of Single Comb White Leghorn pullets by feeding them layer ration and exposing them to nephrotrophic Gray…”
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An outbreak of avian urolithiasis on a large commercial egg farm by Cowen, B.S, Wideman, R.F, Rothenbacher, H, Braune, M.O

“…A significant outbreak of avian urolithiasis was observed on a large commercial egg farm. From the initial outbreak site (a single laying house), the incidence…”
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Incidence and Distribution of "Avian Adenovirus Group II Splenomegaly of Chickens" by Domermuth, C. H., Weston, C. R., Cowen, B. S., Colwell, W. M., Gross, W. B., DuBose, R. T.

“…Forty-six percent of 3,585 serum samples from 174 broiler-breeder chicken flocks in 9 states were positive for the precipitating antibody of hemorrhagic…”
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A case of acute pulmonary edema, splenomegaly, and ascites in guinea fowl by Cowen, B.S, Rothenbacher, H, Schwartz, L.D, Braune, M.O, Owen, R.L

“…Acute pulmonary edema, splenomegaly, and ascites were observed in a disease outbreak in adult white and pearl guinea fowl. The clinical history and gross and…”
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A standardized enzyme-linked immunosorbent assay for infectious bronchitis virus: comparison with hemagglutination-inhibition and virus-neutralization assays for measuring protective antibody levels in chickens by Perrotta, Charles, Furtek, Cheryl, Wilson, Richard A., Cowen, Barrett S., Eckroade, Robert J.

“…An enzyme-linked immunosorbent assay (ELISA) was developed to measure antibodies to infectious bronchitis virus (IBV) in chickens. The results are reported in…”
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