Browsing by Author "Venkatesan, RA"
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ArticleItem Open Access ANTIBIOGRAM-AN EPIDEMIOLOGICAL TOOL IN THE IDENTIFICATION OF ESCHERICHIA COLI POULTRY ISOLATES(1991) Premkumar David, B; Venkatesan, RA; TANUVASAntibiogram pattern with other typing methods (Holmberg et al. 1984; Wachsmuth, 1986; and David eta!. 1991) enables the identification of the organism aptly and has been considered as an efficient epidemiological tool in the investigation. Present study attempts to employ antibiogram as epidemiological tool for identification of E. coli of poultry: origin.ArticleItem Open Access DETECTION OF BLUETONGUE VIRAL ANTIGEN BY IMMUNOFLUORESCENCE ASSAY(1995) Saravanabava, K; Venkatesan, RA; TANUVASInfection, with BTV is most often monitored by detection of BTV antibodies in serum (Hourrigan and Klingsporn, 1975 ; PoIi et al., 1982). In the present study Fluorescent antibody technique (FAT) was tried to ascertain the suitability in diagnosis.ArticleItem Open Access EVALUATION OF CERTAIN LEPTOSPIRAL DIAGNOSTIC TESTS(1987) Thillai Koothan, P; Ratnam, S; Venkatesan, RA; TANUVASDark-field microscopy and immunoperoxidase staining test for the demonstration of antigen and microscopic agglutinatian (MAT) and enzyme linked immunosorbant assay (ELISA) for the demonstration of antibody were compared in experimentally infected calves with scrovars Pomona and autumnalis. The darkfield microscopy was found better than the immunopcroxidase staining both in blood and urine samples Second centrifugation at l0000G always gave higher positive results. {The MAT detected early serum antibodies than the ELISA The late antibody detection by ELISA may probably be due to the use of IgG fraction in the conjugate The ELISA exhibited higher level of titres than MAT.ArticleItem Open Access FILTER PAPER BLOOD COLLECTION AS A METHOD FOR THE DIAGNOSIS OF RANIKHET DISEASE BY MICRO HAEMAGGLUTINATION INHIBITION TEST(1989) Purushothaman, V; Richard Masillamony, P; Venkatesan, RA; TANUVASThe ability to haemagglutinate the red blood cells is a property of certain viruses like New castle Disease Viruses (NDV). In large scale testing programmes the collection, processing, field storage and transport of large number of sera samples poses a problem. Recently several authors have reported that serum may be obtained from whole chicken blood dried on filter paper for certain routine serological tests. These reports suggest that problems such as spillover, drying, breakage of glass etc., associated with conventional semm samples while being despatched can be avoided (Giambrone, 1981).ArticleItem Open Access A NOTE OF EPIZOOTIC ULCERATIVE SYNDROME (EUS) AMONGST FISH MURREL (CHANNA STRIATUS)(1994) Albert, A; Chandran, NDJ; Joseph Andrew, M; Venkatesan, RA; TANUVASin Tamil Nadu, an ulcerative form of emerging disease syndrome in fish has been recorded where the entire fish population were wiped out in Tamil Nadu. The disease were observed in fresh water fish and wild species of Indian major carps and murrel fish (is the one most commonly affected).ArticleItem Open Access A REPORT ON THE OCCURRENCE OF VARIOUS SERO TYPES OF ESCHERCHIA COLI IN POULTRY AND THEIR ANTIBIOTIC RESISTANCE PATTERN(1989) Palaniswami, KS; Richard Masillamony, P; Venkatesan, RA; TANUVASOver a 28 months, 256 E. coli isolates were obtained from poultry as pathogens in various disease conditions. O1’ these 129 have been serotyped and the predominant 12 serotypes were 061 (13), 02 (12), 06(9), 038(5), 078 (5), 020 (4), 017, 0132, 068, 070 and 0120 (each 3). These serotypes were isolated from coliseptieaemia, air sac disease, oopharitis, dead in shell and enteritis. 0156 and 0158 were among the other 37 serotypess recorded in Tamil Nadu. The antibiotic sensitivity test revealed a variable trend of resistance to various antimicrobial agents Chlorophenicol, gentamycin, co-trimoxazole and neomycin werel found to be most effective antimicrobials against E. coli.ArticleItem Open Access SUSCEPTIBILITY VARIATION AMONG SHEEP TO BLUETONGUE VIRUS INFECTION(1995) Saravanabava, K; Venkatesan, RA; TANUVASBluetongue is an economically important viral disease of sheep and other ruminants. Prevalence of bluetongue have been reported from different parts of this country. (Lonkar et al., 1983; Mehrotra and Shukla, 1990; Janakiraman et al., 1991). The marked variation in the susceptibility of individual animal, age group, breed, species and the wide range of virulence exhibited by antigenically different strains of bluetongue virus are responsible for the unpredictable morbidity and mortality (Sellers, 1981; Sharma el al., 1985).ArticleItem Open Access TYPES AND INCIDENCE OF AEROBIC BACTERIA IN DIFFERENT PUERPERAL CONDITIONS IN BOVINES(1986) Ambrose, JD; Pattabiraman, SR; Venkatesan, RA; TANUVASFifty four bovines comprising of 35 cows and 19 buffaloes with puerperal conditions as retained placenta, puerperal metritis, post abortion metritis and normal puerperium were used in this study. Uterine discharge was obtained aseptically from all the animal and subjected to bacteriological analysis.