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Assam Agricultural University, Jorhat

Assam Agricultural University is the first institution of its kind in the whole of North-Eastern Region of India. The main goal of this institution is to produce globally competitive human resources in farm sectorand to carry out research in both conventional and frontier areas for production optimization as well as to disseminate the generated technologies as public good for benefitting the food growers/produces and traders involved in the sector while emphasizing on sustainability, equity and overall food security at household level. Genesis of AAU - The embryo of the agricultural research in the state of Assam was formed as early as 1897 with the establishment of the Upper Shillong Experimental Farm (now in Meghalaya) just after about a decade of creation of the agricultural department in 1882. However, the seeds of agricultural research in today’s Assam were sown in the dawn of the twentieth century with the establishment of two Rice Experimental Stations, one at Karimganj in Barak valley in 1913 and the other at Titabor in Brahmaputra valley in 1923. Subsequent to these research stations, a number of research stations were established to conduct research on important crops, more specifically, jute, pulses, oilseeds etc. The Assam Agricultural University was established on April 1, 1969 under The Assam Agricultural University Act, 1968’ with the mandate of imparting farm education, conduct research in agriculture and allied sciences and to effectively disseminate technologies so generated. Before establishment of the University, there were altogether 17 research schemes/projects in the state under the Department of Agriculture. By July 1973, all the research projects and 10 experimental farms were transferred by the Government of Assam to the AAU which already inherited the College of Agriculture and its farm at Barbheta, Jorhat and College of Veterinary Sciences at Khanapara, Guwahati. Subsequently, College of Community Science at Jorhat (1969), College of Fisheries at Raha (1988), Biswanath College of Agriculture at Biswanath Chariali (1988) and Lakhimpur College of Veterinary Science at Joyhing, North Lakhimpur (1988) were established. Presently, the University has three more colleges under its jurisdiction, viz., Sarat Chandra Singha College of Agriculture, Chapar, College of Horticulture, Nalbari & College of Sericulture, Titabar. Similarly, few more regional research stations at Shillongani, Diphu, Gossaigaon, Lakhimpur; and commodity research stations at Kahikuchi, Buralikson, Tinsukia, Kharua, Burnihat and Mandira were added to generate location and crop specific agricultural production packages.

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2016 - 20175
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Subject: Clinical Veterinary Medicine, Ethics and Jurisprudence × End date: 2017 × Type: Thesis × Thesis Type: M.V.Sc. ×
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Now showing 1 - 5 of 5
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    ThesisItemOpen Access
    STUDIES ON ANTHELMINTIC ACTIVITY OF Entada phaseoloides AND Erigeron linifolius AGAINST GASTROINTESTINAL HELMINTH OF GOAT
    (College of Veterinary Science, Assam Agricultural University Khanapara, Guwahati-781022, 2017-07) Gupta, Santosh Kumar; PHUKAN, A.
    The present investigation was carried out with the view to study the anthelmintic activity of Entada phaseoloides and Erigeron linifolius plant extract against gastrointestinal helminth of goat. The overall prevalence of gastrointestinal nematodes in goats was found to be 82.75 per cent under the prevailing agro-climatic condition of Byrnihut during the period of October to November 2016. The different nematodes recorded in goats were Haemonchus spp. (82.75%), Oesophagostomum spp. (78.16%), Trichostrongylus spp. (70.11%), Strongyloides spp. (62.06%), Bunostomum spp. (48.27%), Trichuris spp. (39.08%) and Cooperia spp. (24.13%). The EPG count in treated groups (plant extracts /drug) decreased gradually with commencement of treatment. In Group A and B treated with crude methanolic extract of Entada phaseoloides and crude ethanolic extract of Erigeron linifolius, EPG became nil on 21st day. In group C treated with combination of both plant extracts, EPG gradually reduced but was not nil on 21st day. While group D treated with fenbendzole, EPG count became nil on 7th day of post treatment. Group E was kept as untreated infected group, where the EPG count gradually increased and Group F, the animals where kept as healthy control. During pre-treatment period, the haemato-biochemical study revealed a significant decrease in the levels of Hb (7.23 ± 0.13), PCV (25.75 ± 0.48), TEC (9.77 ± 0.17), MCV (21.73 ± 0.53), MCH (7.11 ± 0.16), Lymphocytes (42.75 ± 0.50), basophils (0.25 ± 0.04) , total serum protein (5.20 ± 0.18), serum albumin (2.34 ± 0.05), serum globulin (2.84 ± 0.19), A:G, serum sodium (127.37 ± 1.51) ,serum chloride (90.93 ± 1.00), serum potassium (3.18 ± 0.28), serum glucose (43.89 ± 0.80) , serum iron (110.41 ± 2.05) and serum zinc level (51.72 ± 1.35) in the affected goats which increased gradually after treatment whereas an increase in the levels of TLC (15.75 ± 0.93), eosinophils (3.86 ± 0.14) Monocytes (1.71 ± 0.14), and neutrophils (45.78 ± 1.37) were observed in the affected goats which also decreased gradually after treatment and reached normal level. Based on reduction of EPG count and haemato-biochemical changes, the efficacy of methanolic extract of Entada phaseoloides was 72.52, 89.00 and 100 % followed by ethanolic extract of Erigeron linifolius was 62.76, 86.17 and 100 % while in combination was 53.68, 73.68 and 89.47 % on 7th , 14th and 21st day respectively. Fenbendazole showed highest efficacy 100% on 7th day post treatment. In-vitro studies were undertaken for which adult parasites were collected from local slaughter house. Parasites were exposed to different concentration of plant extract i.e. 50, 150, 300, 1000 and 3000 µg/ml PBS, petri dish containing fenbendazole was kept as positive control while in negative control parasite were exposed to only PBS. Both plants extract either individually or in combination were effective against adult parasite of Paramphistome cervi, Haemonchus contortus and Fasciola gigantica. Further it was revealed that dose dependent anthelminthic activity was exhibited by plant extract and highest efficacy was observed at 3000 µg/ml.
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    ThesisItemOpen Access
    THEILERIASIS IN CATTLE AND ITS THERAPEUTIC MANAGEMENT
    (College of Veterinary Science, Assam Agricultural University Khanapara, Guwahati-781022, 2017-07) Brahma, Juripriya; Baishya, B. C.
    The study was undertaken w.e.f. 1st March 2016 to 28th February 2017, to study about the theileriasis in cattle and its therapeutic management. A total of 275 out of 563 suspected animals were found positive only for Theileria orientalis infection and the prevalence was recorded 48.84 per cent. Season-wise prevalence of Theileria orientalis was recorded highest in monsoon (53.85%) in comparison to other seasons. The highest prevalence of 60.19 per cent was recorded in the age group of above 3 years. The Holstein Friesian crossbred recorded highest with prevalence of 54.04 per cent. The noted clinical signs were fever, respiratory distress, anorexia, reduced milk yield, nasal discharge, depression, pale mucous membrane, diarrhoea, icterus and changes of urine colour. Though PCR analysis was found more sensitive in detecting the Theileria orientalis infection, the microscopic examination was found as gold standard for diagnosis of clinical theileriasis. The level of haemato-biochemical parameters like haemoglobin, packed cell volume, monocytes, basophils, total erythrocyte count, creatinine and blood urea nitrogen were found significantly decreased (P<0.01), and the levels of total leucocyte count, neutrophils, eosinophils, aspartate aminotransferase, alanine aminotransferase, total bilirubin and direct bilirubin were found significantly increased (P<0.01). Among the different treatment regimens used, the buparvaquone was found most effective and followed by buparvaquone with immunomodulator, oxytetracycline with diminazine diaceturate, and a combination of oxytetracycline and diminazine diaceturate with immunomodulator. Considering the alteration in pre and post treatment parameters like parasitological examination, haemato-biochemical examination and therapeutic efficacy, either the combination of oxytetracycline and diaminazine diaceturate or oxytetracycline, diaminazine diaceturate with immunomodulator also can be used alternatively for the treatment of oriental theileriasis.
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    ThesisItemOpen Access
    HAEMATO-BIOCHEMICAL ALTERATIONS IN CANINE RENAL DYSFUNCTION AND ITS THERAPEUTIC MANAGEMENT
    (College of Veterinary Science, Assam Agricultural University Khanapara, Guwahati-781022, 2017-07) Nakang, Habung; Changkija, Bendangla
    The present study entitled “Haemato-biochemical alterations in canine renal dysfunction and it’s therapeutic management” was undertaken w.e.f. 1st August 2016 to 31st May 2017 with the objective to study the prevalence, clinical signs and haematobiochemical alterations in dogs with renal dysfunction and to assess the efficacy of the therapy adopted in stage III and IV of renal dysfunction in dogs. The study revealed overall prevalence of 25.88% of renal dysfunction with higher occurrence in Labrador breed (38.64%) with male predominance (68.18%) and in age group of 6-10 years (72.73%). Clinical signs associated with renal dysfunction were anorexia weight loss weakness vomiting, emaciation, pale mucous membrane, polyuria, polydipsia inappetance, recumbency, anuria, halitosis, oral ulcers, epistaxis, seizure, congested mucous membrane and cataract/blindness. Haematology revealed anemia and severe protienuria with highly significant elevation in BUN, serum creatinine and phosphorous in dogs with renal dysfunction when compared with apparently healthy control dogs. A non-significant elevation of serum sodium and potassium and fall in total protein and albumin levels were also observed in dogs with renal dysfunction. Combination of rubenal and conservative treatment using supportive drugs, was found to be more effective in the therapeutic management of renal dysfunction in stages III and IV with a survivality rate of 90% when compared to prednisolone with supportive drugs and a combine therapy using both prednisolone and rubenal along with supportive drugs.
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    ThesisItemOpen Access
    PREVALENCE OF GASTROINTESTINAL NEMATODOSIS IN CATTLE WITH SPECIAL REFERENCE TO Strongyles AND ITS THERAPEUTIC MANAGEMENT
    (College of Veterinary Science, Assam Agricultural University Khanapara, Guwahati-781022, 2016-12) Rai, Astuti; Kalita, D. N.
    The present study was conducted on prevalence of Gastrointestinal Nematodosis in cattle with special reference to Strongyles and its therapeutic management in different places of Assam, during the period from May 2015 to April 2016 for a period of one year with the objectives (i) to study prevalence of Gastrointestinal nematodes specially Strongyle infection in cattle, (ii) to study the haemato-biochemical changes in affected cattle and (iii) to find out comparative efficacy of some anthelmintics against Strongyle infection. A total of 1154 faecal samples collected from cattle of different places of Assam, were examined for detection of nematodes eggs, of which 271 cattle resulted positive for nematode eggs and the overall prevalence was recorded as 23.46 per cent. Out of 23.46 per cent, the percent prevalence of different nematodes i.e. Strongyle spp., Strongyloides spp., Trichuris spp. and Toxocara vitulorum were recorded as 9.27, 1.55, 1.99 and 10.65 per cent respectively. The season-wise prevalence was found to be highest (13.62 %) in monsoon season and lowest (5.47%) in pre-monsoon season. The highest prevalence of 15.23 per cent was recorded in cattle below 1 years and lowest prevalence of 5.35 per cent was recorded in cattle of 3 year above. A significant difference (P<0.05) in the variation in season-wise and age-wise prevalence was revealed The sex-wise prevalence was higher (10.46%) in female cattle than in male (7.73%).The breed-wise prevalence higher (10.59%) in local cattle than cross-bred (7.31%) cattle. There were no significant (P>0.05) difference in variation of sex and breed-wise prevalence. Out of the Strongyle positive cattle, 18 cattle, irrespective of breed, age and sex, were selected randomly and divided into 3 groups viz., Grpup I, Group II and Group III, each consisting 6 cattle. Another 6 healthy cattle were kept as healthy control and named as Group IV. In group I, cattle were treated with albendazole at the dose rate of 7.5 mg/kg body weight .orally for single dose, in group II, cattle were treated with ivermectin at the dose rate of 0.2 mg/kg body weight subcutaneously for single dose and in group III, cattle were treated with fenbendazole at the dose rate of 7.5 mg/kg body weight for single dose. Supportive therapy with mineral mixure (Minfa powder), antidiarrhoel (Diaroak) and 5 % dextrose were given to all the cattle in group I, II and III. During pre-treatment period, the haemato-biochemical study revealed a significant decrease in the levels of Hb, PCV, TEC, Lymphocytes and Monocyte in the affected cattle which increased gradually after anthelmintics treatment whereas an increase in the levels of TLC, Eosinophils and Neutrophils were observed in the affected cattle which also decreased gradually after treatment and reached normal level Based on reduction of EPG count, haemato-biochemical changes and recovery from clinical signs, the therapeutic efficacy was found to be highest (91.53%) with albendazole followed by fenbendazole (86.93%) and ivermectin (82.78%) in this study.
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    ThesisItemOpen Access
    CURRENT TREND OF DEMODICOSIS IN DOG: EPIDEMIOLOGY, HAEMATO-BIOCHEMICAL CHANGES AND THERAPEUTIC MANAGEMENT
    (Assam Agricultural University, Khanapara, Guwahati, 2016-01) PRADHAN, DIPSIKA; Phukan, A.
    The present work was performed to study the current trend of demodicosis in dog enclosing the aspects of epidemiology, haemato-biochemical changes and therapeutic management. A total of 166 dogs with dermatitis were examined for Demodex infestation, of which 28 dogs resulted positive and the overall prevalence was recorded as 16.87 per cent. Among the diseased dogs, localized form was presented in 32.14 per cent and generalized form was presented in 67.86 per cent of cases. In the present study, there were no significant effects (P>0.05) of season, month and sex in the prevalence of the disease. A significant difference (P<0.05) in the variation in age wise and breed wise prevalence was revealed. The highest prevalence of 28.57 per cent was recorded in the age group of above 6 month to 1 year, with pure-bred dogs documenting the highest prevalence of 19.66 per cent. The duly noted clinical signs were alopecia, erythema, scaling, pruritis, follicular papules and pustules, crusts, comedones, seborrhea, lichenification and ulceration, with lesions predominantly observed in periocular, trunk and forelimb regions. The haemato-biochemical study disclosed a significant decrease (P<0.01) in the levels of haemoglobin, packed cell volume, total erythrocyte count, lymphocytes, total serum protein and serum albumin, and a significant increase (P<0.01) in the levels of total leukocyte count, neutrophils, eosinophils, alanine transaminase, aspartate transaminase, alkaline phosphatase, and serum globulin. During the present study, the treatment regimens compared were 10% imidacloprid with 2.5% moxidectin spot-on solution, ivermectin injection, and a combination of ivermectin injection and amitraz wash. Although all the treatment protocols were found to be effective in the management of canine demodicosis, spot-on solution of 10% imidacloprid with 2.5% moxidectin, and a combination of ivermectin injection and amitraz proved to be comparatively better in clinical and parasitological remission. However, combined use of ivermectin injections and amitraz as external wash was found to be the most cost effective treatment of canine demodicosis.