tEscherichia coli infection is one of the most important infections, which causes heavy economic losses in the poultry industry. It is caused by avian pathogenic E.coli (APEC), which belongs to the group Extra-intestinal Pathogenic E. coli (ExPEC). In this study, a total of 60 APEC isolates from various poultry farms located in and around Anand were evaluated for antibiotics susceptibility by disc diffusion (phenotypic) method for 21 different antibiotics. The E. coli isolates showed 100% resistance against pefloxacin, moxifloxacin and tetracycline followed by ampicillin (86.67%), levofloxacin (81.67%), amoxiclav and ciprofloxacin (71.67% each), co-trimoxazole (56.67%), sulphadiazine (53.34%) and erythromycin (33.33%). The study also revealed that E. coli isolates were highly susceptible to colistin (100.00%), followed by ceftriaxone and spectinomycin (85.00% each), cefixime (81.67%), amikacin (80.00%) and gentamicin (76.67%). All these isolates were also screened for the presence of 20 different antibiotic-resistant genes (ARGs) by genotypic method, i.e., polymerase chain reaction. PCR revealed presence of cmlA gene responsible for chloramphenicol resistance in cent percent isolates. The distribution of other ARGs in the E. coli isolates were qnrS (85.00%), aac(3)-IV (56.66%), strB (53.33%), aadA1 (51.66%), dhfrI (50.00%), tetB (41.66%) sulI and tetA (33.33% each), blaOXA (31.66%), cat1 and blaCMY (21.66% each), strA (6.67%), blaSHV (3.33%) and dhfrV (1.66%), while all the isolates were negative for blaTEM, ere(A), qnrA, qnrB and mcr-1 genes.

Aim:The present research work was carried out to study the patho-epidemiological aspects of Genotype-XIII Newcastle disease virus (NDV) infection in commercial layer in and around Anand, Gujarat. As the outbreaks have reported in vaccinated flocks, it was felt necessary to study the disease with respect to its changing pathogenicity and relevant aspects.Materials and Methods:The study comprised of patho-epidemiology of Newcastle disease (ND) by information collected from different layer farms suffering from the disease in relation to incidence pattern and mortality, duration of mortality, susceptible age, and loss due to production performance. Clinical signs were recorded based on observations. During post-mortem, gross lesions were also recorded. For histopathological examination visceral organs according to lesions were collected in 10% formalin and processed slide stained by hematoxylin and eosin for microscopic examination. Cultivation of virus was done in embryonated specific pathogen-free (SPF) eggs of 9-11 days and isolation of virus was done for haemagglutination (HA) and haemagglutination inhibition (HI) test and to identify pathotype of virus by intracerebral pathogenicity index (ICPI) test to determine the virulence of virus. The Genotype-XIII NDV was confirmed by F gene sequence and whole genome sequence.Results:During the study mortality due to ND was recorded in 13 layer flocks in spite of routine vaccination, which usually contain Genotype-II strain of virus. The mortality was observed as high as above 50% with an average of 21.21%. The susceptible age for disease was found to be 6-14 weeks. The duration of mortality observed was 23 days. The disease resulted in a significant reduction in body weight, feed intake and drop in egg production. Majority of the outbreaks appeared during extremely hot months of April to June. Greenish diarrhoea was frequently seen in birds that survived early in infection. Mortality continued for 2-3 weeks and reduced with appearance of torticollis. Gross lesions were characterized by multifocal to diffuse hemorrhages around proventricular glands, necrotic (diphtheritic) haemorrhagic ulcers throughout the intestine, disseminated multiple foci of necrosis and pin-point hemorrhages in the spleen parenchyma. The microscopic lesions include focal to diffuse hemorrhages, diffuse infiltration of mononuclear cells, necrosis, and degeneration in visceral organs. All the 13 farm samples (n=13) resulted in death of all the embryos following incubation up to 72 h post-inoculation. All the 13 allantois fluids from field samples along with F and R2B vaccine sample were found positive for HA activity, which was further confirmed by HI using known NDV serum. The values of ICPI were 2.0 which were indicative of velogenic nature of the field NDV strain.Conclusion:The study indicated that presently available live and attenuated vaccines which include Genotype-II NDV have failed in protecting the flocks against Genotype-XIII and resulted in outbreaks with mortality above 50%. ICPI score o...

Aim : The study was conducted to provide baseline data on faecal parasites in groups of captive and free-living Non Human Primates of Gujarat state. Materials and Methods: Eighty two faecal samples from hanuman langur (Presbytis entellus) and fifteen samples from rhesus macaque were analysed from June, 2010 to March, 2011 using sedimentation technique as described by Georgi. Identification of parasitic ova was carried out as described by Soulsby (1982) and Wallach and Boever (1983). Results: Out of these 28 (34.14%) in hanuman langur and 6 (40.00%) in rhesus macaque, were found positive for the presence of total of six parasite species viz. Strongyloides spp., Trichuris spp., Entaemoeba histolytica spp., Ascaris spp., Entamoeba coli, Spirometra spp. Conclusion: Incidence of parasitic infection was 34.14% and 40.00% in Hanuman Langur and Resus macaque respectively.

We report the finished and annotated genome sequence of Pasteurella multocida gallicida strain Anand1_poultry, which was isolated from the liver of a diseased adult female chicken. The strain causes a disease called “fowl cholera,” which is a contagious disease in birds. We compared it with the published genome sequence of Pasteurella multocida Pm70.

The aims of this study were to investigate various factors associated with protective anti-rabies antibody status (0.5 EU/ml) in vaccinated pet dogs and anti-rabies antibody status in unvaccinated stray dogs. One hundred and seven serum samples were collected from vaccinated pet dogs, out of these 58 (62.36 %) dogs showed antibody titre above 0.5 EU/ml. All the dogs were divided into different groups based on age, sex, breed, vaccine brand and time of vaccination after last vaccine to assess the relationship of these factors with vaccinal immune response. One way analysis of variance was performed in graphpad prism software to check the effect of all these factors. Statistical analysis of ELISA titres of pet dog serum samples suggested that age, sex, breed and vaccine brands have no significant effect on the anti-rabies antibody titres. To check anti-rabies antibody status in stray dogs 53 serum samples were collected and only one out of 53 (1.88 %) stray dogs showed anti-rabies antibody titre above 0.5 EU/ml indicating susceptibility to rabies infection and thereby posing possible threat to surrounding human and animal populations.