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Chaudhary Sarwan Kumar Himachal Pradesh Agriculture University, Palampur
Himachal Pradesh Krishi Vishvavidyalaya (renamed as Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya in June, 2001) was established on 1st November, 1978.The College of Agriculture (established in May, 1966) formed the nucleus of the new farm University. It is ICAR accredited and ISO 9001:2015 certified institution. The Indian Council of Agricultural Research has ranked this University at eleventh place among all farm universities of the country.
The University has been given the mandate for making provision for imparting education in agriculture and other allied branches of learning, furthering the advancement of learning and prosecution of research and undertaking extension of such sciences, especially to the rural people of Himachal Pradesh.
Over the years, this University has contributed significantly in transforming the farm scenario of Himachal Pradesh. It has developed human resources, varieties and technologies and transferred these to farming community enabling the State to receive the “Krishikarman award” of Govt. of India four times in row for food grain production among small states of the country. Today, the State has earned its name for hill agricultural diversification and the farming community has imposed its faith in the University.
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ThesisItem Open Access CLINICAL EVALUATION OF END THREADED INTRAMEDULLARY PINNING FOR MANAGEMENT OF LONG BONE FRACTURES IN CANINES(CSKHPKV, Palampur, 2014-07-17) Chanana, Mitin; Adarsh KumarThe present investigation was undertaken to evaluate the clinical efficacy of end-threaded intramedullary pinning for management of various long bone fractures in canines. The study was carried out in two phases, managing 25 client owned dogs presented with different fractures. Initially, the technique of application of end threaded intramedullary pinning in long bone fractures was standardized in 6 clinical patients presented with long bone fractures. In this phase, end threaded pins of different profiles i.e. positive and negative, were used as the internal fixation technique. These patients, allocated randomly in two groups, when evaluated postoperatively revealed slight pin migration in group-I (negative profile), which resulted in disruption of callus site causing delayed union in one case and large callus formation in other two cases whereas no pin migration was observed in group-II (positive profile). Other observations in group-I was reduced muscle girth and delayed healing time as compared to group-II. In clinical application phase, on the basis of results obtained from standardization phase, 19 client-owned dogs clinically presented with different fracture, implanted with end threaded intramedullary positive profile screw ended self tapping pin. Immediate post-operative radiograph revealed anatomical reduction, good cortical contact and stable implant fixation whereas muscle girth showed an initial decrease followed by a gradual increase over time. The 21st and 42nd day post-op radiographical follow-up revealed no pin migration in any of the cases and there was no bone shortening or fragment collapse. Based upon the above observations, it was concluded that the end threaded intramedullary positive profile screw ended self-tapping pin used for fixation of long bone fractures in canines can resist pin migration, pin breakage and all loads acting on the bone i.e. compression, tension, bending, rotation and shearing to an extent with no post-operative complications. The implant was found economical and can be easily used in field conditions in managing long bone fractures in canines, as compared to other orthopaedic implants.ThesisItem Unknown DIAGNOSTIC ULTRASONOGRAPHY OF AN EQUINE ABDOMEN(CSKHPKV, Palampur, 2014-07-19) Farooq, Uiase-Bin; Adarsh KumarThe present work on equine abdominal ultrasonography was conducted in two phases. In standardization phase, detailed abdominal ultrasonographic scan was performed on native 10 adult (5horses and 5 mules) healthy equines of either sex to develop baseline topographical data of various organs. In this phase, the organs of right and left hemi-abdomen were topographically located, their echo-architecture was described. A baseline data of landmarks for locating different abdominal organs was elucidated. The sonographic calliper measurements of different organs were generated along with dynamic parameters of alimentary tract to help delineate the pathology. In clinical application phase, 14 clinical cases of equines suspected for abdominal disorders were subjected to ultrasonography for assisting the diagnosis. Colonic impactions were imaged as hyperechoic intraluminal structure casting a strong acoustic shadow. Bull’s eye or sandwich like appearance of intestinal loops was characteristic of intussusceptions and can be imaged transabdominally. Descending colon obstructions were imaged as a large hyperechoic intraluminal masses casting a strong acoustic shadow with loss of normal sacculations and peristaltic movement of descending colon. In case of peritonitis the peritoneum could be imaged as thin echogenic layer with lot of peritoneal fluid present inside the abdominal cavity with marked thickening of jejunal wall. It was concluded that thorough clinical investigation combined with ultrasonography was found to be an important diagnostic imaging aid for diagnosing different abdominal disorders in equines and equips the surgeon/clinician to identify the exact etiology, which helps reach at an accurate diagnosis and formulate a precise and efficient therapeutic plan.ThesisItem Open Access Evaluation of combination therapies for gastric ulcerations and erosions in dogs(CSKHPKV, Palampur, 2014-04-07) Suresh, Shastri Piyush; Tyagi, S. P.The study was conducted in 2 phases on 24 adult healthy medium sized mongrel dogs divided into 6 equal groups. In phase 1, Inj. Dexamethasone @ 1mg/kg, IV, b.i.d. was administered in all the animals until a predetermined severity of GUE was achieved and thereafter phase 2 commenced in which animals were subjected to no treatment, lansoprazole @1.5mg/kg, Seabuckthorn seed oil @1ml/dog, 40% Aloe vera pulp @ 5ml/dog, Lansoprazole @1.5mg/kg + 1ml Seabuckthorn seed oil and 4ml of 40% Aloe vera pulp + 1ml seabuckthorn seed oil p.o. b.i.d. till complete healing of GUE lesions. The progression of GUE was evaluated by gastro-endoscopic, clinical, fecal occult blood test, hematological and biochemical examinations at regular intervals. Gastro-endoscopic examinations revealed that by 10th day, 58.38% dogs reached the desired GUE index. Clinical examinations revealed a slight fluctuation in rectal temperature, heart rate and respiration rate but well within the normal limits. It accompanied 12.53% loss in body weight. Subjective assessment revealed a general lack of activity, reduced appetite (n=16/24) and occasional vomiting (n=5/24). The severity of gastric lesions evidenced endoscopically co-related well with melena observed in the dogs from 7th to 16th day with maximum severity on the 10th day (16/19) and there onwards. There was direct correlation between presence of gastric bleeding and positive fecal occult blood test. Haematological studies revealed a marked decrease in Hb, PCV, TEC, monocytes and lymphocytes. TLC and granulocytes exhibited significant increase on all observation intervals. Gastro-endoscopically, complete healing of GUE lesions during phase 2 was earliest in group 5 (combination of lansoprazole with seabuckthorn oil) at 7.5 days followed by group 2 (lansoprazole) at 9.0 days, group 1 (negative control) at 9.75 days, groups 3 and 6 (SBT oil and combination of SBT oil + Aloe vera) at 10.5 days, and the longest in group 6 (Aloe vera) at 14.25 days respectively. The severity of melena gradually decreased towards the end of study in all the groups with the animals of groups 5 and 3 showing earliest signs of improvement. Fecal occult blood test was positive in all the animals till there was endoscopic evidence of gastric bleeding. This test was found sensitive in diagnosing subclinical gastric bleeding. Clinical and haematological parameters improved markedly towards the end of phase 2. AST, ALT, BUN, creatinine and total protein remained within normal physiological limits throughout the study. It is concluded that the combination of Lansoprazole with SBT seed oil has synergistic therapeutic efficacy in dexamethasone-induced GUE in dogs, as it results in faster healing when compared with either of them used alone.ThesisItem Open Access Clinical evaluation of ketamine, propofol or ketamine-propofol admixture (Ketofol) for induction of anaesthesia in diazepambutorphanol premedicated and isoflurane maintained dogs.(CSKHPKV, Palampur, 2014-07-02) Kapil, Neha; Sharma, S. K.The purpose of this study was to clinically evaluate ketamine, propofol or ketaminepropofol for induction of anaesthesia in diazepam-butorphanol premedicated and maintained dogs. Thirty clients owned dogs of either sex were randomly divided into three groups BDP (Butorphanol-Diazepam-Propofol), BDK (Butorphanol-Diazepam-Ketamine) and BDKP (Butorphanol-Diazepam-Ketofol). All dogs were premedicated with atropine sulphate @ 0.04 mg/kg b. wt subcutaneously followed fifteen minutes later with Butorphanol tartarate @ 0.2 mg/kg b. wt IV. 5 minutes later Diazepam @ 0.5 mg/kg b. wt IV was administered followed by Propofol, Ketamine or Ketofol “till effect” IV for induction of surgical anaesthesia as per group. After induction, the animals were immediately transferred to isoflurane in oxygen. Observations recorded in dogs included analgo-clinical observations, cardiovascular observations, haemodynamic observations, anaesthetic response and dose, pulmonary responses and haemato-biochemical observations at various time intervals. The induction dose of propofol, ketamine or ketofol in BDP, BDK and BDKP group was 4.5±0.07 mg/kg, 5.0±0.23 mg/kg and 3.0±0.00 mg/kg respectively. Hypothermia was observed in BDP and BDKP group. Increased heart rate and fall in diastolic arterial pressure and increase in mean arterial pressure were observed in BDKP and BDK groups respectively after induction of anaesthesia with no rhythmic disturbance. The CVP remained below normal range in BDK group. SPO2 and ETCO2 remained in physiological limits in all the anaesthetic combinations. Significant respiratory depression occurred in BDKP group after induction. Transient apnea was observed in three animals in BDP group which was resolved after shifting of animal to 100% oxygen. Smoother induction and transfer were achieved by all the combinations. Recoveries were smoother, and excitement free in BDP group. Significant fall in Hb, PCV and TEC occurred in all the groups in early phase. Biochemical parameters remained within normal limits in all the groups. All the combinations used in present study and recommended for different types of surgeries in dogs.ThesisItem Open Access CLINICAL EVALUATION OF DIAZEPAMBUTORPHANOL OR ACEPROMAZINE-BUTORPHANOL FOR SEDATION DURING PROPOFOL HALOTHANE ANAESTHESIA IN DOGS(CSKHPKV, Palampur, 2013-07-08) Khurana, Anubhav; Sharma, S. K.The purpose of this study was to evaluate the neuroleptanalgesic combination of diazepam-butorphanol or acepromazine-butorphanol in propofol halothane anaesthesia. Twenty clients owned dogs of either sex were randomly divided into two groups DP (Diazepam-Propofol) and AP (Acepromazine-Propofol). All dogs were premedicated with Inj. Atropine sulphate @ 0.04 mg/kg b. wt. followed fifteen minutes later with Inj. Butorphanol tartarate @ 0.2 mg/kg b. wt IV. Subsequently after 10 minutes premedicated with Inj. Diazepam @ 0.5 mg/kg b. wt IV or Inj. Acepromazine maleate @ 0.015 IV followed by Inj. Propofol “till effect” IV for induction of surgical anaesthesia. After induction having achieved, the animals were immediately transferred to halothane in oxygen. Observations recorded in dogs included analgo-clinical observations, cardiovascular observations, haemodynamic observations, anaesthetic response and dose, pulmonary responses and haemato-biochemical observations at various time intervals. Average induction dose of propofol in DP group was 5.11 mg/kg and 4.89 mg/kg in DP and AP group respectively. Faster muscle relaxation and higher hypothermia was observed in AP group. No arrhythmia, tachycardia and fall in arterial blood pressure were observed in both the groups after induction. CVP, SPO2 and ETCO2 remained in physiological limits in both anaesthetic combinations. Significant respiratory depression occurred in both the groups after induction. Transient apnea was observed in three animals in DP group and two in AP group. Apneas were resolved without any intervention. Smoother induction and transfer were achieved by both combinations. Recoveries were smoother, faster and excitement free in AP group. Significant fall in PCV and TEC occurred in DP group in early phase whereas only PCV decreased significantly in AP group. Biochemical parameters were non significant in both the groups.ThesisItem Open Access STUDIES ON PREVALENCE, CHARACTERIZATION AND EFFECT OF ANTIMICROBIAL AGENTS ON Escherichia coli ISOLATES FROM CHICKEN(CSKHPKV, Palampur, 2013-01-14) Choudhary, Shivani; Khurana, S. K.In the present study, microbiological quality of chicken meat, eggs and their products was assessed by employing standards plate count and coliform count with special emphasis on Escherichia coli which is a food borne pathogen of public health importance. A total of 250 samples of raw and ready to eat chicken meat and eggs were screened for the presence of E. coli. Based on serotyping maximum prevalence was found in raw chicken (13.33%), followed by shell eggs (8 %), egg products (6.67%) and chicken products (4.76%). Among the twenty two isolates confirmed by serotyping, 12 isolates belonged to 10 different ‘O’ serogroups viz. O2, O8, O11, O13, O17, O21, O23, O35, O66 and O155 while 5 were rough strains and 5 were untypable strains. All the isolates were characterized in terms of antibiotic resistance/sensitivity, haemolysin production, plasmid profiles and presence of virulent genes. On the basis of PCR, ten out of 22 serotyped isolates revealed the presence of virulence genes with nine isolates showing the presence of eae and bfpA genes and one isolate having bfpA and stx1/stx2 genes. Antibiogram studies of the isolates revealed that 59.09% of the isolates were multidrug resistant with maximum isolates showing resistance to co-trimoxazole (86.36%), followed by tetracycline (68.18%), ofloxacin (40.91%) and piperacillin/tazobactam (40.91%) while cent per cent sensitivity was observed against kanamycin. Plasmid profiling revealed multiplicity and random distribution of plasmid DNA with plasmid bands ranging from 1.2 kb to >10 kb. None of the isolates displayed hemolytic activity. Due to ever increasing problem of antibiotic resistance, effect of both methanolic and aqueous extracts of pomegranate peels, orange peels, curry leaves, radish leaves, seabuckthorn leaves and ginger rhizomes was evaluated against E. coli. Only the aqueous and methanolic extracts of pomegranate peels were found effective against E. coli at the concentration of 8%, 9% and 10%.ThesisItem Open Access BIOENHANCING EFFECT OF BERBERIS ARISTATA AND CURCUMA LONGA ON PHARMACOKINETICS OF AMOXICILLIN IN CALVES(CSKHPKV, Palampur, 2014-07) Tandon, Tamanna; Varshneya, C.The bioenhancing effects of Berberis aristata and Curcuma longa (30 mg.kg-1) were studied on pharmacokinetics of amoxicillin in calves. The studies were carried out on six apparently healthy male calves (2-3 months of age). The calves were divided into six groups and amoxicillin was administered at the dose rate of 10 mg.kg-1 by intravenous and oral route in groups I and II, respectively. The animals of group III and IV received extracts of Berberis aristata and Curcuma longa along with amoxicillin, respectively. The animals of group V and VI received only the extracts of Berberis aristata and Curcuma longa, respectively. The blood samples were collected at 2.5 min., 5 min., 10 min., 15 min., 30 min., 1h, 2 h, 4 h, 6 h, 8 h, 10 h and 12 h following the intravenous administration and samples were collected at 15 min., 30 min., 1h, 2 h, 3 h, 4 h, 5 h, 6 h, 8 h, 10 h and 12 h after oral administration. The samples were analysed for amoxicillin using agar plate diffusion method. The disposition kinetics of amoxicillin followed two compartment open model following intravenous and oral administration. Following a single intravenous injection of amoxicillin, the plasma level was 11.9 ± 0.21 μg.ml-1 at 2.5 min. and the drug was detected above MIC in plasma upto 6 h. The pharmacokinetic parameters of the distribution and elimination phase of amoxicillin revealed rapid distribution of the drug into body fluids and tissues with a short distribution half life of 0.13 ± 0.01 h. A fair distribution of drug was also reflected by the high values of K12/K21 ratio (1.81 ± 0.05) and AUC (16.13 ± 0.28 μg.ml-1.h). The values of t1/2β, Kel, ClB and MRT were: 2.50 ± 0.07 h, 0.88 ± 0.01h-1, 620.75 ± 10.49 ml.kg-1.h-1 and 3.18 ± 0.08 h, respectively. After oral administration the peak plasma level was achieved at 3 h and the values of AUC, t1/2β, ClB and MRT were: 9.25 ± 0.31 μg.ml-1.h, 1.66 ± 0.05 h, 617.03 ± 10.71 ml.kg-1.h-1 and 3.79 ± 0.06 h, respectively. The simultaneous administration of extracts of Berberis aristata and Curcuma longa altered both the absorption and elimination phases. The findings of the present study revealed that amoxicillin has a bioavailability of 57 percent. The simultaneous administration of extracts significantly (P<0.05) increased the oral bioavailability of amoxicillin.ThesisItem Open Access STUDIES ON AMELIORATIVE POTENTIAL OF SEABUCKTHORN AGAINST AFLATOXIN INDUCED HEPATOTOXICITY IN POULTRY(CSKHPKV, Palampur, 2014) Sharma, Navjot; Varshneya, C.The present investigation was undertaken to study the ameliorative potential of seabuckthorn (leaves and pulp) in aflatoxin induced hapatotoxicity in poultry. A total of 210, day old broiler chicks were used for studying the growth performance, biochemical parameter and antioxidant status for the period of 4 weeks. 70% methanolic extracts of seabuckthorn leaves and pulp were fed to broiler chicks @ 1000ppm in feed . Glucomannan was mixed in feed @ 1g/kg whereas, aflatoxin was added @ 400ppb. The aflatoxin treatment significantly (P<0.05) reduced weight gain and increased FCR. The seabuckthorn (leaves and pulp extract) alone significantly (P<0.05) improved the growth performance. AF treatment produced a significant (P<0.05) decrease in total serum proteins, albumin, globulin, cholesterol, triglycerides and HDL and significant (P<0.05) increase in AST, ALT, ALP, LDH and total serum billirubin. However, seabuckthorn (leaves and pulp extract) and glucomannan supplementation significantly (P<0.05) restored these biochemical parameters to control levels. In aflatoxin treated groups the malondialdehyde (MDA) level of liver, kidney and blood was significantly (P<0.05) increased whereas, GSH, catalase, SOD and GPx levels were significantly (P<0.05) decreased, while there was a significant (P<0.05) increase in levels of MDA, GSH, catalase, SOD and GPx in liver of chicks fed on seabuckthorn. The combined dietary supplementation of AF + SBT leaves , AF + SBT pulp, and AF +GM produced significant (P<0.05) decrease in lipid peroxidation and an increase GSH, Catalase, SOD and GPx level of liver, kidney and blood, respectively. Histopathological lesions in the liver were severe in aflatoxin group with marked congestion of hepatic sinusoids, focal haemorrhages, centro-lobular fatty cytoplasmic vacuolation and or necrosis, biliary hyperplasia, severe degeneration of hepatocytes, dilation of central veins, bile duct proliferation and least severe in group (AF+GM) followed by groups fed with SBT (leaves and pulp extract) and there were no lesions in chicks fed with SBT (leaves and pulp) alone. On the basis of growth performance, biochemical parameters, antioxidant activity and histopathology of liver tissues, it can be concluded that dietary supplementation of seabuckthorn is capable of ameliorating the aflatoxin induced hepatotoxicity in poultry.ThesisItem Unknown PHARMACOLOGICAL & TOXICOLOGICAL EFFECTS OF PACLITAXEL(CSKHPKV, Palampur, 2014) Bhat, Mohammad Aamir; Varshneya, C.The present investigation was conducted to study in vitro cytotoxicity, apoptosis and changes in cell cycle kinetics induced by paclitaxel on C6 (Rattus norvegicus glioma) and CHO-K1 (Chinese hamster ovarian carcinoma) cell lines. In this study, percentage cytotoxicity against cell lines was evaluated by Sulphorhodamine (SRB) assay. The percentage of surviving cells fell after 48 hours of treatment and IC50 values were observed between 0.5 to 0.75 and 0.25 to 0.75 μg/ml in C6 and CHO-K1 cells, respectively. Cells incubated in high concentrations of paclitaxel had increased survivability compared with cells treated with lower concentrations of the drug. No significant cytotoxicity was observed after 24 hours of treatment. Paclitaxel induced apoptosis by caspase 3/7 activation and caused accumulation of cells in G2/M phase of cell cycle in both the cell lines. Upon fluorescent microscopy, both the cell lines lost their morphology, confluency and adherence after 24 hours but the effects were much more pronounced after 48 hours of treatment. In vivo toxicological studies were also conducted in adult wistar rats to evaluate the highest non toxic dose level of intra peritoneal administration of Paclitaxel-Cremophor EL formulation at 0.30 (G1), 1.20 (G2), 2.32 (G3) and 3.20 (G4) mg/kg at 7 day interval over a period of 21 days (3 times in total). In acute toxicity studies alopecia and tachypnea was observed in G4. No other signs of acute toxicity and no mortality was observed in any of the dose groups. After repeated dosing, at 21st day, serum aspartate transaminase, alanine transaminase, lactate dehydrogenase, creatinine phosphokinase levels were significantly increased in G3 and G4 and total serum protein, albumin and alkaline phosphatase levels were also increased in G4. No significant changes were observed in serum globulin levels in any of the dose groups. Red Blood cell and lymphocytic count was significantly decreased in groups G3 and G4 and white blood cell, neutrophil count, hematocrit percentage and haemoglobin concentration was also decreased in G4. Histopathological changes were observed mainly as nuclear fragmentation, apoptosis and cellular damage in liver, heart, spleen, kidney, mesenteric lymph nodes, lungs and testes in G3 and G4 but the severity of lesions was much higher in G4. The in vitro data suggested that paclitaxel will be most effective clinically when there is prolonged exposure of tumour to the drug rather than increasing concentration of drug in the biophase. Based on in vivo results, the highest non-toxic dose of formulation was estimated to be 1.20 mg/kg in rats, under this study condition and equivalent human dose was estimated to be 0.1332 mg/kg.