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Anand Agricultural University, Anand
Anand Agricultural University (AAU) was established in 2004 at Anand with the support of the Government of Gujarat, Act No.(Guj 5 of 2004) dated April 29, 2004. Caved out of the erstwhile Gujarat Agricultural University (GAU), the dream institution of Sardar Vallabhbhai Patel and Dr. K. M. Munshi, the AAU was set up to provide support to the farming community in three facets namely education, research and extension activities in Agriculture, Horticulture Engineering, product Processing and Home Science. At present there seven Colleges, seventeen Research Centers and six Extension Education Institute working in nine districts of Gujarat namely Ahmedabad, Anand, Dahod, Kheda, Panchmahal, Vadodara, Mahisagar, Botad and Chhotaudepur
AAU's activities have expanded to span newer commodity sectors such as soil health card, bio-diesel, medicinal plants apart from the mandatory ones like rice, maize, tobacco, vegetable crops, fruit crops, forage crops, animal breeding, nutrition and dairy products etc. the core of AAU's operating philosophy however, continues to create the partnership between the rural people and committed academic as the basic for sustainable rural development. In pursuing its various programmes AAU's overall mission is to promote sustainable growth and economic independence in rural society. AAU aims to do this through education, research and extension education. Thus, AAU works towards the empowerment of the farmers.
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ThesisItem Open Access ISOLATION AND MOLECULAR CHARACTERIZATION OF EXTENDED SPECTRUM BETA LACTAMASE PRODUCING ESCHERICHIA COLI FROM MILK(Department of Veterinary Public Health & Epidemiology College of Veterinary Science and Animal Husbandry Anand Agricultural University Anand, 2019) PAGHDAR DHARABEN M.; Dr. J. B. NAYAKThe present study was carried out in the post graduate laboratory, Department of Veterinary Public Heath and Epidemiology, College of Veterinary Science and Animal Husbandary, A.A.U., Anand in order to isolation and molecular characterization of Extended Beta Lactamase Producing Escherichia coli from milk to study their cultural characteristic and to judge the hygienic level of different local dairy cattle farms in and around Anand, Gujarat. A total of 150 samples were collected from different dairy cattle farms located in Navali (25), Sai dairy farm (50), Chikhodara (25), Bedva (25) and Mogar (25). All the samples were first inoculated on MacConkey Agar (MCA) and isolates showing pink colonies (lactose fermenting) were further transferred to Eosin Methylene Blue Agar (EMB) for confirmation and greenish metallic sheen producing isolates were confirmed as E. coli isolates.ThesisItem Open Access ISOLATION AND MOLECULAR CHARACTERIZATION OF EXTENDED SPECTRUM BETA LACTAMASE PRODUCING ESCHERICHIA COLI FROM CHICKEN(Department of Veterinary Public Health and Epidemiology College of Veterinary Science and Animal Husbandry Anand Agricultural University, Anand, 2019) Gida Harpalbhai; Dr. M. N. BrahmbhattThis study was undertaken in order to isolate and molecularly characterize extended spectrum beta lactamase producing Escherichia coli from chicken, to check their prevalence and to judge hygienic level of different local chicken butcher’s and retail market meat in and around anand. Total 150 chicken muscle samples were collected from chicken shops in and around Anand under aseptic precautions in sterile screw lid sample collector for further processing and microbiological analysis. Samples were collected aseptically in sterile test screw capped vials and immediately transferred to the laboratory for processing and bacteriological investigation.ThesisItem Open Access DETECTION OF TETRACYCLINE ANTIBIOTICS IN MILK OF ANAND DISTRICT(COLLEGE OF VETERINARY SCIENCE AND ANIMAL HUSBANDRY ANAND AGRICULTURAL UNIVERSITY ANAND, 2017) Mistry Urvish Pravinbhai; Dr. M. N. BrahmbhattThis study was undertaken with the objective of determining the overall presence of the Tetracycline antibiotic residues in raw and pasteurized milk samples collected from different localities of Anand district, Gujarat. Establishing sensitivity and specificity of immuno-photometric test and comparing the method with traditional chromatographic techniques for residue detection was the complementary objective. The research work was done at Department of Veterinary Public Health, College of Veterinary Science and Animal Husbandry, AAU, Anand and Food Quality Testing Laboratory, College of Food Processing Technology and Bio-Energy, AAU, Anand.ThesisItem Open Access SEROPREVALENCE OF BRUCELLOSIS IN SMALL RUMINANTS AND HUMANS OF ANAND DISTRICT(DEPARTMENTOF VETERINARY PUBLIC HEALTH AND EPIDEMIOLOGY COLLEGE OF VETERINARY SCIENCE AND ANIMAL HUSBANDRY ANAND AGRICULTURAL UNIVERSITY ANAND, 2017) RADHABEN R. PADHER; DR. J. B. NAYAKThe present study was carried out at the post graduate laboratory, Department of Veterinary Public Health and Epidemiology, College of Veterinary Science and Animal Husbandry, A.A.U., Anand with the intention to determine the seroprevalence of brucellosis among small ruminants and human beings of Anand district, Gujarat employing RBPT, STAT and I-ELISA and compared the efficacy of these tests.ThesisItem Open Access ISOLATION AND CHARACTERIZATION OF AEROMONAS SPECIES FROM POULTRY MEAT(AAU, Anand, 2009) SMITA; Brahmbhatt, M. N.The aim of the present study was to isolate, identify and characterize Aeromonas species from poultry meat. A total of 120 samples were processed for estimating prevalence oi Aeromonas spp. Out of those 120 samples, 66 isolates oi Aeromonas were identified. On the basis of biochemical characterization 47 isolates of A. sobria, 11 isolates of A. hydrophila and 8 isolates of A. caviae were detected. When the source wise study of Aeromonas was conducted it was found that maximum number of Aeromonas isolates were recovered from heart (87.5 per cent) followed by liver (66.66 per cent), thigh muscle and chest muscle (40 per cent each). When different selective culture media were evaluated for isolation of Aeromonas spp. from poultry meat it was found that percent recovery of Aeromonas isolates were more from Ampicillin Dextrin Agar (89.39 per cent), followed by Aeromonas Starch DNAse agar (68.18 per cent) and Aeromonas isolation media (18.18 per cent). Specificity of PCR assay for detection of A. hydrophila and A. sobria was performed by testing against different gram positive and gram negative organisms.Primers were found to be specific for A. hydrophila and A. sobria. All the isolates of A. sobria (47) and A. hydrophila (11) which were identified on the basis of biochemical characterization were subjected to PCR and confirmed. All 66 Aeromonas isolates were tested for presence of aerolysin, haemolysin and enterotoxin gene. None of the isolate showed presence of aerolysin and enterotoxin while overall prevalence of haemolysin gene was 78.78 per cent. In A. hydrophila, 54.54 per cent; A. caviae, 37.5 per cent and in A. sobria, 91.48 per cent isolates were found to possess haemolysin gene. All the isolates of Aeromonas were subjected to antimicrobial drug sensitivity test against gentamicin, chloramphenicol, ciprofloxacin, kanamycin, bacitracin, rifampicin, tetracycline and erythromycin. Maximum sensitivity pattern was recorded with chloramphenicol (86.36per cent), gentamicin (81.82 per cent), ciprofloxacin (60.61 per cent), kanamycin (34.85 per cent), bacitracin (25.76 per cent), tetracycline (16.67 per cent), rifampicin (15.15 per cent) and erythromycin (9.09 per cent). The resistance pattern of Aeromonas isolated from chicken meat to various antibiotics was observed as bacitracin (74.24 per cent) followed by rifampicin (71.21 per cent), kanamycin (65.15 per cent), erythromycin (53.03 per cent), tetracycline (33.33 per cent), ciprofloxacin (22.73 per cent) and gentamicin (18.18 per cent). It was concluded that overall prevalence of Aeromonas spp. in poultry meat was 55 per cent which is a matter of concern from public health point of view and needs proper attention. The overall prevalence of 78.78 per cent of Aeromonas isolates showing presence of haemolysin gene (Virulence gene) in poultry meat is also a matter of concern and this study reveals that poultry meat could be a potential threat to public health. Hence, more attention for implementation of HACCP concept from food safety point of view is required. Antibiotic sensitivity pattern of Aeromonas isolates revealed that chloramphenicol was found to be most effective drug (86.36per cent) followed by gentamicin (81.82 per cent), ciprofloxacin (60.61 per cent), kanamycin (34.85 per cent), bacitracin (25.76 per cent), tetracycline (16.67 per cent), rifampicin (15.15 per cent) and erythromycin (9.09 per cent).ThesisItem Open Access MEAT SPECIATION BY MOLECULAR AND SEROLOGICAL TECHNIQUES(AAU, Anand, 2002) Thumbar, J. M.; BRAHMBHATT, M. N.Among several methods of meat speciation, method based on DNA especially Polymerase Chain Reaction (PCR) provide potentially more information than others. The present study was under taken for meat speciation by molecular and serological techniques. Meat samples from meat species (cattle, buffalo, sheep, goat, pig and chicken) were utilized for molecular analysis. Genomic DNA was isolated from eight meat samples of each species as per method described by Sambrook et al. (1989) with some modifications. Actin multigene family was amplified by PCR using a pair of family specific primers (forward primer-5' CCT ACA ACA GCA TCA TGA AGT G 3'and reverse primer-5' GCT GAT CCA CAT CTG CTG GAA G 3'). PCR cycling protocol included to initial denaturation at 95 °C for 5 minutes then followed by 30 cycles of 95°C for 1 minute, 48°C for 1 minute, 72°C for 1 minutes and final extension at 72°C for 1 minute, 48°C for 1 minute, 72°C for 1 minutes and final extension at 72°C for 5 minutes. PCR products were resolved by agarose gel electrophoresis it produced a characteristic band pattern for each species. PCR band pattern generated for cattle included one major band of 0.328 kb. The PCR band pattern for buffalo included two bands of 0.328 and 0.242 kb. Sheep and goat produced identical band patterns having two bands of 0.328 and 0.242 kb and one faint band of 0.765 kb. Pig also revealed pattern identical to buffalo. A band of approximately 0.330 kb size was common in all livestock species. Chicken exhibited a characteristic pattern with six bands, three bands of high intensity (approximately 0.365, 0.334 and 0.242 kb) and three faint bands (approximately 0.547, 0.480 and 0.113 kb). Out of six species explored, four were found to have characteristic PCR band pattern. Thus, PCR was considered to be a potential technique for meat species identification and speciation. Actin gene band patterns were identical in both the sexes for all the species studies. PCR was also found to be consistent and effective tool as it remained same for heat treated and putrified (unpreserved) of meat. An agar gel precipitation technique was successfully used for identification of meat species, cross-reaction study and detection of adulteration level in meat. Hyper immune sera were raised in rabbits by intramuscular injection of meat extract. Anti buffalo meat sera were cross-reacted to cattle, sheep and goat meat extract. At same time anti cattle meat sera were also found to be crossreacted with buffalo, sheep and goat meat extract. Species specific sera were made by absorption technique. These sera were used to detect level of adulteration. By AGPT, up to 10 % level of adulteration between buffalo or cattle meat with sheep and goat meat was successfully detected. Counter immunoelectrophoresis technique was also successfully used to detect the meat species. This method was found to be rapid as compare to the AGPT.ThesisItem Open Access HUMAN AND ANIMAL INFECTIONS CAUSED BY CANDIDA ALBICANS(AAU, Anand, 2001) Jadhav, Vijay Jayawant; Pal, MahendraThe aim of the present study was to elucidate the etiologic significance of C. albicans in various clinical disorders of man as well as animals. Mycological examination of 293 clinical samples (136 from man, 97 from animals and 60 visceral organs of chicks) from suspected fungal infections was carried out for the presence of C. albicans. The various disorders encountered during the study period in man were otomycosis (84), cutaneous infection (20), oral infection (12), onychomycosis (10) and vulvovaginitis (10), while in animals were mastitis (49), stomatitis (30), dermatitis (11), otitis (7), The visceral organs included in the study were, gizzard (13), proventriculus (13), liver (12), lung (13), and crop (9). The isolates of C. albicans were subjected to in-vitro antifungal drug susceptibility test agaiiis: clotrimazole, fluconazole, amphotericin-B and nystatin. The results of this investigation indicated that frequency of occurrence of organism was higher in man (55.55 per cent) followed by dogs (22.22 per cent), chickens (14.81 per cent) and cows and buflaloes (3.71 per cent each) and most of the C. albicans isolates were contributed by oral infection. The study of in-vitro drug sensitivity of the clinical isolates of C. albicans showed that there was a wide variation in the resistant pattern ranging from 0.00 per cent to 51.85 per cent and clotrimazole was found to be the most effective drug (62.96 per cent). The observations of this preliminary study on in-vitro efficacy of six nutrient media suggested that Sabouraud dextrose agar is a cheap and good selective fungal medium. It was concluded that, the overall prevalence of C. albicans infection was higher in man as compared to animals. The good management practices of dairy cattle farm along with hygienic methods of milking followed at the Livestock Research Station at Anand, prevented the incidence of subclinical mastitis caused by C. albicans. Of all the drugs tested in-vitro by disc diffusion technique, clotrimazole was found to be the most effective chemotherapeutic agent, which may help in the management of the candidiasis. Being a cheap and selective fungal medium, Sabouraud dextrose agar can be recommended for the routine mycological work in the microbiology and public health laboratories. This appears to be the first record from India, which delineates the occurrence and etiologic significance of C. albicans in stomatitis of dogs and buffaloes.ThesisItem Open Access ISOLATION, IDENTIFICATION AND DETECTION OF VIRULENCE FACTOR ASSOCIATED GENES OF CAMPYLOBACTER SPP. FROM BUFFALO MEAT(AAU, Anand, 2015) PATEL, SWATI N.; BRAHMBHATT, M. N.Campylobacter spp. has been recognized as one of the most frequent cause of gastrointestinal illness in humans throughout world. In recent years, the frequency of human enteritis caused by Campylobacter spp. has exceeded those caused by salmonella especially in developed countries. The association of zoonotic Campylobacters with chronic and life threatening complications such as Guillain- Barre syndrome, reactive arthritis, haemolytic uraemic syndrome, abortion, meningitis etc. which increases the public health concern of this pathogen worldwide. Campylobacter is normal inhabitant of intestinal tract of food animals and faulty handling, lack of sanitation at processing and improper storage has been considered as the major factor contaminating all types of animal foods. Inadequately cooked meat, unpasteurized milk and contaminated drinking water are the most common sources for epidemic and sporadic food borne cases. Therefore, the present study was undertaken with the objective to isolate identify and characterize the Campylobacter spp. from raw buffalo meat intended for the human consumption available in the retail meat market in Anand, Gujarat. A total 200 samples including 75 beef, 75 liver, 25 intestinal content and 25 water samples were collected aseptically and processed immediately after arrival. The samples were enriched into 25 ml of Blood free Campylobacter broth base containing CCDA selective supplement. Mixed properly and incubated at under microaerophilic condition (85% N2, 5% O2 and 10% CO2) at 42° C for 48 hours and further inoculation on blood free Campylobacter selective agar (mCCDA). The presumptive Campylobacter isolates were further confirmed at genus and species level by the series of biochemical tests and also confirmed by polymerase chain reaction assay. The confirmed isolates were subjected for the antibiotic susceptibility test using seven antibiotics, detection of virulence determinants by PCR. In the present study, 7 out of 200 (3.5%)) samples in which 2 out of 75 (2.67 %)) buffalo beef, 3 out of 75 (4 %) liver, 2 out of 25 (8 %>) intestinal content and no any water sample were found positive for the Campylobacter spp. In all the seven isolates the only identified species was Campylobacter jejuni. All the seven isolates of Campylobacter were further processed to study antibiotic resistance and sensitivity pattern against seven antibiotics by using agar disc diffusion technique. All Campylobacter isolates were resistant to Ciprofloxacin (100%)), where as 85.71% and 28.57% resistant to Nalidixic acid and Tetracycline, respectively. All the Campylobacter isolates were sensitive to Chloramphenicol, Erythromycin, Gentamicin and Strepyomycin sulphate (100%)) followed by Tetracycline (71.42%o) and Nalidixic acid (14.28%). All the isolates were also subjected for in vitro detection of five virulence gene encoding for viz., Flagellin gene (flaA), Campylobacter adherence gene (CadF), Invasion associated marker (iamA) gene. Flagellar synthesis and modification (flgR) and Cytolethal distending toxin Subunit B gene (cdtB) by polymerase chain reaction (PCR) using specific primers. The result indicated that all the seven isolates were found positive for CadF, CdtB and JlgR gene (100%) while six isolates were positive for flaA gene (85.71%) and three isolates were positive for iamA gene (42.85%). Therefore, the presence of Campylobacter in buffalo meat confirms that raw meat consumption could be a significant risk factor for human beings and there is need for routine study of this pathogen in buffalo meat to decrease the chances of infection with Campylobacter by consumption.ThesisItem Open Access ISOLATION, IDENTIFICATION AND MOLECULAR CHARACTERIZATION OF SALMONELLA ISOLATES OF FISH(AAU, Anand, 2010) TEKALE, ASHISH ANANTRAO; Savalia, C. V.The present study was carried out in the post graduate laboratory, Department of Veterinary Public Health, CVSc, AAU, Anand with intension to find out prevalence of Salmonella spp. in raw fish sold at retail fish shops in Anand city of Gujarat. The samples of raw fish consisted of different parts such as skin, gills, muscles and intestines (54 each) collected aseptically from local fish market and subjected first to pre-enrichment in lactose broth and then enrichment in tetrathionate (TTB) and Rappaport-Vassiliadis soybean meal (RVSM) broth, followed by plating on two selective media viz. xylose lysine deoxycholate (XLD) and bismuth sulphite agar (BSA). The colonies showing typical colony characteristics were further characterized on the basis of their morphological and biochemical characteristics. Cultures identified as Salmonella were further subjected to detection of different virulence associated genes and sensitivity to various antibiotics used in treatment. In the present study, 4.16 per cent (9/216) prevalence oi Salmonella spp. in raw fish samples was recorded. The organ wise the highest isolation rate was from gills' samples (7.40%) followed by intestines (5.55%), skin (1.85%)) and muscles (1.85%)). Serotyping of the isolates demonstrated that only Salmonella Weltevreden was main serotype recovered fi-om raw fish samples of Anand market (66.66%) o{Salmonella positive fish samples). The study of antibiogram of the isolates showed that all the Salmonella isolates were cent percent sensitive to chloramphenicol, gentamicin and norfloxacin; followed by the sensitivity pattern in descending order for cefepime and kanamycin (88.88% each), ciprofloxacin (66.66%), streptomycin (55.55%), carbenicilHn and cefotaxime (33.33%) each) and ampicillin (22.22%)). The cent per cent resistance towards erythromycin (100%) was observed followed by tetracycline (66.66%)), carbenicillin (44.44%)), ampicillin (33.33%)) and streptomycin (22.22%o). Looking to the sensitivity pattern of six S. Weltevreden isolates, all isolates were 100 per cent resistant to erythromycin followed by carbenicillin (66.66%)), ampicillin and tetracycline (50.00%) each) and streptomycin (33.33%)). All the Salmonella isolates were screened for the presence or absence of virulence genes viz. wvA, spvC, spVR. and stn using specific primers. All the isolates revealed presence of mvA gene suggesting their invasive ability and enteritoxin gene (stn) was present in all the isolates suggesting their potential to cause gastroenteritis among the consumers on account of consumption of such contaminated fish. None of the isolates showed presence of spvC gene or spvR. gene indicating their inability to cause systemic infections.
