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Endotoxin-induced changes in plasma concentrations of thromboxane and prostacyclin in neonatal calves given antiserum to a mutant Escherichia coli (J-5).
1986
Morris D.D. | Bottoms G.D. | Whitlock R.H. | Johnson M.A.
Types of myofibers parasitized in experimentally induced infections with Sarcocystis cruzi and Sarcocystis capracanis.
1986
Powell E.C. | Pezeshkpour G. | Dubey J.P. | Fayer R.
Seroepizootiologic study of bovine respiratory syncytial virus in a dairy herd.
1986
Baker J.C. | Ames T.R. | Markham R.J.F.
Age-related changes in carbohydrate tolerance in healthy neonatal calves.
1986
Rollin R.E. | Fettman M.J. | Phillips R.W.
Studies on development of Escherichia coli subunit vaccine against calf diarrhea, 2; immunogenicity and protective efficacy of Escherichia coli K99 and F41 pilus vaccines in experimental animals
1986
Kim, J.M. | Yoon, Y.D. | Park, J.M. (Rural Development Administration, Anyang (Korea R.). Veterinary Research Inst.) | Kim, B.H. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine)
The oil emulsion and alhydrogel pilli vaccines were prepared from a strain (O9: K35, K99, F41) of enterotoxigenic Escherichia coli isolated from calves with diarrhea and their immunogenicity was tested in guinea-pigs, pregnant goats and cows. Serum antibody responses to K99 and F41 antigens in guinea-pigs given experimental oil and gel vaccines peaked at 4 and 6 weeks after vaccinations. At that time, the mean hemagglutination inhibition titers to K99 and F41 antigens in guinea pigs given oil vaccine were 1:25 and 1:1,218 and those given gel vaccine were 1:54 and 1:724 respectively
Show more [+] Less [-]Studies on development of Escherichia coli subunit vaccine against calf diarrhea, 1; distribution of enterotoxigenic Escherichia coli and purification of K99 and F41 pilus antigens
1986
Kim, J.M. | Yoon, Y.D. | Park, J.M. (Rural Development Administration, Anyang (Korea R.). Veterinary Research Inst.) | Kim, B.H. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine)
The prevalence of diarrhea caused by enterotoxigenic Escherichia coli was surveyed on 445 calves in 6 farms which were located in the central part of Korea. The incidence of enterotoxigenic Escherichia coli in calves with diarrhea was investigated by detecting the K99 and F41 antigens from the isolated strains of Escherichia coli. The incidence of colibacillosis in calves was 23.3%. Of 238 strains of Escherichia coli isolated from calves with diarrhea, 73 strains (30.6%) were proved possessing the K99 antigen by mannose-resistant hemagglutination (MRHA) using horse red blood cells and 79(33.1%) possessing F41 antigens by MRHA using guinea-pig red blood cells
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