Search Results - "Danforth, H.D."

Use of live oocyst vaccines in the control of avian coccidiosis: experimental studies and field trials by Danforth, H.D

“…Areas addressed in this study on the use of live oocyst vaccines to control coccidiosis include: the influence of immunocompetency of the strains and sex of…”
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Intestinal mucosal mast cell immune response and pathogenesis of two Eimeria acervulina isolates in broiler chickens by Morris, B.C, Danforth, H.D, Caldwell, D.J, Pierson, F.W, McElroy, A.P

“…Four experiments were conducted comparing intestinal immune responses to 2 isolates of Eimeria acervulina (EA), EA1 and EA2. In experiments 1 and 2, broiler…”
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Analysis of immunological cross-protection and sensitivities to anticoccidial drugs among five geographical and temporal strains of eimeria maxima by Martin, A.G., Danforth, H.D., Barta, J.R., Fernando, M.A.

“…Two laboratory strains (USDA strain No. 68 isolated from the eastern shore of Maryland 15 years ago and a University of Guelph strain isolated from an Ontario…”
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Participation of the intestinal epithelium and mast cells in local mucosal immune responses in commercial poultry by Caldwell, D.J, Danforth, H.D, Morris, B.C, Ameiss, K.A, McElroy, A.P

“…The intestinal mucosa of commercial poultry is continually subjected to invasion or colonization by a wide array of potentially hostile enteric pathogens…”
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Immunogenicity of ad libitum drinking water administration of bovine serum albumin in Leghorn chickens by Ameiss, K.A, Danforth, H.D, McElroy, A.P, Barri, A, Berghman, L.R, Caldwell, D.J

“…Oral administration of protein antigen in solution routinely leads to development of oral tolerance in most mammals but has been reported to be fully…”
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Effects of dietary supplementation with n-3 fatty acid ethyl esters on coccidiosis in chickens by Allen, P.C. (USDA, ARS, Livestock and Poultry Sciences Institute, Beltsville, MD.), Danforth, H.D

“…The ethyl esters of eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids were added to a broiler starter diet singly or in combination [as bulk purified…”
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Effects of combined treatment with recombinant bovine somatotropin and immunization with live oocysts on performance of broiler chicks raised on coccidia-seeded floor pens by Allen, P.C, Danforth, H.D

“…In our laboratory, preliminary studies have indicated that recombinant bovine somatotropin (rbST) can stimulate protective immunity against coccidia infection…”
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Association of lowered plasma carotenoids with protection against cecal coccidiosis by diets high in n-3 fatty acids by Allen, P C, Danforth, H D, Morris, V C, Levander, O A

“…A series of four experiments was run to assess the effectiveness of diets containing high amounts of n-3 fatty acids in reducing the pathological effects of…”
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effect of dietary protein level on performance characteristics of coccidiosis vaccinated and nonvaccinated broilers following mixed-species Eimeria challenge by Lee, J. T, Eckert, N. H, Ameiss, K. A, Stevens, S. M, Anderson, P. N, Anderson, S. M, Barri, A, McElroy, A. P, Danforth, H. D, Caldwell, D. J

“…A series of experiments were conducted to investigate the effect of starter diet protein levels on the performance of broilers vaccinated with a commercially…”
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Sustainable coccidiosis control in poultry production: the role of live vaccines by Chapman, H.D, Cherry, T.E, Danforth, H.D, Richards, G, Shirley, M.W, Williams, R.B

“…The development of new methods of administering coccidiosis vaccines has facilitated their use in the hatchery and thereby improved prospects for the economic…”
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Genetically engineered antigen confers partial protection against avian coccidial parasites by Danforth, H D, Augustine, P C, Ruff, M D, McCandliss, R, Strausberg, R L, Likel, M

“…A fusion protein of beta-galactosidase and Eimeria tenella produced in a recombinant Escherichia coli strain was injected into chickens and elicited partial…”
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Effect of monensin on ultrastructure and cellular invasion by the turkey coccidia Eimeria adenoeides and Eimeria meleagrimitis by Augustine, P C, Watkins, K L, Danforth, H D

“…Freshly excysted sporozoites (SZ) of the turkey coccidia Eimeria meleagrimitis and Eimeria adenoeides were incubated at 41 C in concentrations of monensin from…”
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Development of resistance to coccidiosis in the absence of merogonic development using X-irradiated Eimeria acervulina oocysts by Jenkins, M C, Augustine, P C, Barta, J R, Castle, M D, Danforth, H D

“…Sporulated oocysts of the protozoan Eimeria acervulina were subjected to 0, 10, 15, 20, or 30 krad of X-irradiation and inoculated into susceptible outbred…”
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Gamma-Irradiated and Nonirradiated Eimeria tenella Sporozoites Exhibit Differential Uracil Uptake and Expression of a 7- to 10-kDa Metabolic Antigen by Jenkins, M.C., Chute, M.B., Danforth, H.D., Lillehoj, H.S.

“…Eimeria tenella sporozoites were exposed in the oocyst form to either an optimum (15 kRad) or a high (25 kRad) dose of gamma irradiation and used to infect…”
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Effect of ionophorous anticoccidials on invasion and development of Eimeria: comparison of sensitive and resistant isolates and correlation with drug uptake by Augustine, P C, Smith, 2nd, C K, Danforth, H D, Ruff, M D

“…Prophylactic levels of three ionophorous antibiotics, monensin, salinomycin, and lasalocid, were administered to groups of chickens and turkeys. All three…”
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Phage display selection and characterization of single-chain recombinant antibodies against Eimeria tenella sporozoites by Abi-Ghanem, D, Waghela, S.D, Caldwell, D.J, Danforth, H.D, Berghman, L.R

“…A single-chain antibody library against Eimeria tenella sporozoites was constructed by phage display. Antibody-displaying phage was selected in five panning…”
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Effects of components of Artemisia annua on coccidia infections in chickens by Allen, P.C, Lyon, J, Danforth, H.D

“…Four experiments were run to test the anticoccidial activity of dried Artemisia annua leaves and several of their chemical constituents for possible use as…”
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Specificity and cross-reactivity of hybridoma antibodies generated against Eimeria bovis sporozoites by Lindsay, D S, Dubey, J P, Augustine, P C, Danforth, H D, Fayer, R

“…Spleens from mice immunized with Eimeria bovis sporozoites were removed and the cells fused with mouse myeloma cells to produce hybridoma cell lines (HCLs)…”
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Immunostimulating Complexes Incorporating Eimeria tenella Antigens and Plant Saponins as Effective Delivery System for Coccidia Vaccine Immunization by Berezin, V. E, Bogoyavlenskiy, A. P, Tolmacheva, V. P, Makhmudova, N. R, Khudyakova, S. S, Levandovskaya, S. V, Omirtaeva, E. S, Zaitceva, I. A, Tustikbaeva, G. B, Ermakova, O. S, Aleksyuk, P. G, Barfield, R. C, Danforth, H. D, Fetterer, R. H

“…Immunostimulating complexes (ISCOMs) are unique, multimolecular structures formed by encapsulating antigens, lipids, and triterpene saponins of plant origin,…”
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Analysis of infraspecific variation among five strains of Eimeria maxima from North America by Barta, J.R., Coles, B.A., Schito, M.L., Fernando, M.A., Martin, A., Danforth, H.D.

“…Two laboratory strains from the eastern shore of Maryland 15 years ago and from an Ontario broiler house 23 years ago and three recent field strains of Eimeria…”
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