Rajesh Katoch

• phD
• Head of Faculty at Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu

First Report

The present study was conducted to evaluate resistance against ionophores (salinomycin and maduramicin) in four field isolates (F) of Eimeria tenella collected from four distantly located poultry farms from Union territory of Jammu and Kashmir. The purity of isolates was ascertained by COCCIMORPH and ITS-1 gene amplification for E. tenella. For the...

Goat warble fly infestation (GWFI) is an economically important myiasis caused by larvae of Przhevalskiana silenus (Diptera, Oestridae), prevalent in countries of the Mediterranean Basin and Indian subcontinent. GWFI is characterized by the presence of subcutaneous warbles at the lumbar and sacral region of dorsum in the infested animal. The early...

Economic impact of amphistomosis in Goats

Present study was conducted to carry out morphological and molecular confirmation of sandflies collected at the Department of Parasitology, Faculty of Veterinary and Animal Sciences, R.S. Pura, Jammu, India. Larva was maggot like with large head, thorax and abdomen with typical black head, 12 abdominal segments and last abdominal segment carried tw...

The present study was conducted from January 2018 to December 2019 to know the prevalence of coccidiosis in backyard poultry in Jammu, Samba, and Udhampur districts of Union Territory of Jammu and Kashmir, North India. A total of 600 pooled fecal samples collected from backyard poultry were examined for presence of Eimeria oocysts. Morphometry and...

Goat warble fly infestation (GWFI) is a subcutaneous myiasis caused by larvae of Przhevalskiana silenus , an insect belonging to the order Diptera . The diagnosis of GWFI is challenging in the early larval instars (L1 and L2) as they are occult under the skin and hair coat causing prolonged economic loss in form of meat and hide damage. This necess...

Status of ivermectin resistance was studied in 16 isolates of Rhipicephalus (Boophilus) microplus ticks collected from northwestern Himalayan region of India using larval immersion test (LIT). Regression graphs of probit mortality of larval ticks plotted against log values of concentrations of ivermectin were utilized for the determination of slope...

A study aims to determine comparative pathology of induced anchylostomiasis was conducted in murine model. L3 larvae of Ancylostoma caninum were given at the rate of 200 larvae per rat orally and 1000 per rat through per cutaneous route in both healthy and diabetic groups as per the design of the experiment. Blood samples were collected on day 15,...

Amphistomosis in sheep (n=1210) was examined from November 2020 to October 2021 from north-western Himalayan region of India. This study took into consideration the seasonal prevalence, the intensity of infection and the economic impact of amphistomosis on production parameters of sheep. The overall prevalence was recorded to be 36.3%. Although inf...

Goat warble fly infestation (GWFI) is a subcutaneous myiasis caused by larvae of Przhevalskiana silenus , an insect belonging to the order Diptera. The diagnosis of GWFI is challenging in the early larval instars (L1 & L2) as they are occult under the skin and hair coat causing prolonged economic loss in form of meat and hide damage. This necessita...

The present study was conducted from January 2018 to December 2019 to know the prevalence of coccidiosis in backyard poultry in Jammu, Samba and Udhampur districts of Union Territory of Jammu and Kashmir, North India. A total of 600 pooled faecal samples collected from backyard poultry were examined for presence of Eimeria oocysts. Morphometry and...

Larval packet test (LPT) was used to evaluate resistancestatus against deltamethrin and cypermethrin in R. microplusticks collected from 8 districts of Jammu region. Resistanceagainst deltamethrin was detected at level 1 in three isolates,level 2 in two isolates and level 3 in one isolate while twoisolates were found susceptible. Four isolates were...

The present study was conducted from January 2018 to December 2019 to know the prevalence of coccidiosis in backyard poultry in Jammu, Samba, and Udhampur districts of Union Territory of Jammu and Kashmir, North India. A total of 600 pooled fecal samples collected from backyard poultry were examined for presence of Eimeria oocysts. Morphometry and...

Background: Cryptosporidiosis caused by Cryptosporidium spp. is a zoonotic disease and is the most prevalent pathogens worldwide and leads to severe diarrhoeal diseases and affects the immunological status of the individual. Thus, the study was undertaken to examine the anti-cryptosporidial efficacy of curcumin in comparison with ethanolic extract...

It will be used as a tool of interventional strategies for prevention and control of parasitic zoonoses of livestock and their rearers belonging to socioeconomically poor communities by imparting knowledge through training of field veterinarians. The books aims to provide, for Veterinary Doctors, modern practices on the production of dairy animal,...

Background The present study was aimed at establishing the prevalence, epidemiology and molecular characterization of major haemoprotozoons ( Babesia and Theileria ) and rickettsia ( Anaplasma ) of cattle in Jammu region (North India) using microscopy and Polymerase Chain Reaction (PCR). Hematology, microscopy and PCR based prevalence studies were...

Development of acaricidal resistance and environmental pollution has driven need for eco-friendly pesticides and herbal acaricides. Rhizome extracts of Curcuma longa in three different solvents (acetone, chloroform and ethanol) were used in the range of 0.625–10.0% for larval immersion test against unfed larvae of Rhipicephalus microplus ticks. HPL...

The study was aimed to evaluate the effectiveness of maggot therapy in healing of cutaneous infected wound in streptozotocin (STZ) induced diabetic Wistar rat. For live maggots, the sterilized eggs of Lucilia sericata were obtained from colonies established in laboratory. Diabetes model was established in 48 male Wister rat by intra-peritoneal inje...

The walnut (Juglans regia) hull extracts in three different solvents (acetone, chloroform and ethanol) were tested against unfed larvae of Rhipicephalus microplus ticks using larval immersion test. Mortality rates of larval ticks were in dose-dependent manner. The 100% mortality of larvae was achieved at 10% concentration for acetone and chloroform...

The study was conducted to evaluate the resistance status against fenvalerate and diazinon in Rhipicephalus microplus ticks collected from five districts of northwestern Himalayan region of India using Adult immersion test. Resistance factors (RFs) were calculated between 1.06 to 3.33 for fenvalerate and 2.01 to 3.83 for diazinon. Resistance to fen...

Background: The present study was aimed to establish the prevalence, epidemiology and molecular characterization of major haemoprotozoons (Babesia and Theileria) and rickettsia (Anaplasma) of cattle in Jammu region (North India) using microscopy and Polymerase chain reaction (PCR). Hematology, Microscopy and PCR based prevalence studies were undert...

Development of acaricidal resistance and environmental pollution has driven need for eco-friendly pesticides and herbal acaricides. Leaf extracts of Alstonia scholaris and Sida cordifolia in four different solvents were used in the range of 0.25-8.0% for larval immersion test against unfed larvae of Hyalomma anatolicum. Mortality rates of larval ti...

Cryptosporidium parvum is an apicomplexan zoonotic enteric protozoa that is principally responsible for severe necrotizing enteritis in immunocompromised hosts and has been associated with diarrhoea in a wide variety of animal species. The work was carried out on 48 rats which were equally divided into four groups: GI, GII, GIII and GIV. Rats in GI...

In the present study, adult immersion test (AIT) was used for evaluation of resistance against synthetic pyrethroids (deltamethrin and cypermethrin) in Rhipicephalus (Boophilus) microplus ticks collected from nine districts of three agro-climatic zones of north-western Himalayan region of India. Resistance factors (RFs) were calculated between 0.94...

Present study deals with efficacy of AV/FRC/18 (Keetguard Liquid), a Polyherbal ectoparasiticidal against lice and tick infestation in buffaloes. All the buffaloes were infested with Haematopinus spp. (Lice) and Boophilus spp. (Ticks). Lice infestation was mostly seen on scapular region, back, groin and axilla region while tick Infestation was most...

A survey on occurrence of pathological conditions of trachea and lungs of slaughtered and post mortem cases of sheep were investigated in the present study. A total of 156 cases of trachea and lungs were collected for histopathology from the Jammu region, Jammu & Kashmir state, India with age ranged from 6 months to 2 and a half years. Among them,...

Hepatic coccidiosis was recorded in a commercial rabbit farm. Clinically anorexia, rough hair coat, distended abdomen, watery to semisolid diarrhoea, jaundice and sudden death was recorded in rabbit kits with 58.14 % morbidity and 62 % mortality rate. Grossly, the abdominal cavity contained clear straw coloured fluid. Liver showed diffuse severe co...

Cryptosporidium parvum is an apicomplexan zoonotic enteric protozoa that is principally responsible for severe necrotizing enteritis in immunocompromised hosts and has been associated with diarrhoea in a wide variety of animal species. The work was carried out on 48 rats which were equally divided into four groups: GI, GII, GIII and GIV. Rats in GI...

In present investigation efficacy of AV/FRC/18 (Keetguard Liquid) a polyherbal ectoparasiticidal were assessed against mite infestation in buffalo calves. All the animals were infested with Sarcoptis spp. of mites. Percent efficacy of AV/FRC/18 against mite infestation was recorded and it was found that thrice a week application of 1:20 dilution re...

In cryptosporidial infection, very scarce literature is available about periparturient pattern of oocyst excretion in goats and its implications in the epidemiology of disease in kids; thus the present investigation was done. Faecal samples (160) were examined from 20 pregnant goats, collected at weekly interval, commencing from 4 weeks before kidd...

Delayed wound healing due to extraneous bacterial contamination, antibacterial resistance and other associated factors are of great concern in dealing patients having chronically infected wound. Medicinal properties of certain maggots of Calliphoridae family are known for its effective wound debridement therapy. The objective of the study was to ev...

In vitro acaricidal activity of Piper nigrum and P. longum fruit extracts and their active components (piperine for P. nigrum and piperine and piperlonguminine for P. longum) was evaluated against adults engorged females of Rhipicephalus (Boophilus) microplus using adult immersion test. Three concentrations of each extract with four replications we...

To determine the prevalence of ixodid ticks, 1660 cattle were examined from organised and unorganised cattle farms from eight districts of Jammu region during July 2016 to June 2017. Out of these, 667 animals (40.18%) were found to be positive for ixodid tick infestation. Among the ixodid ticks, only one species i.e. Rhipicephalus (Boophilus) micro...

The objective of present study was to isolate and identify biofilm forming bacteria circulating in veterinary hospital environment and to determine their biofilm production potential. Thirty samples were collected from medical devices (n=10), table tops (n=5), animal trevis (n=5) and hand swabs of veterinary hospital workers (n=10) and analyzed for...

The treamatode Artyfechinostomum sufrartyfex was identified from the small intestine of the Indian Mongoose and the morphological identification of the parasites was described. The fluke A. sufrartyfex is important considering its significant zoonotic potential, and the present study highlights the first report of occurrence of the parasite in a ne...

Myiasis caused by Hypodermatinae flies is an economically important disease affecting domesticated and wild ruminants in countries of the Mediterranean and Indian subcontinent. The adult flies have a short life span of 1 week, and they spread disease by laying their eggs on the coat of animals. Hypoderma spp. primarily lay their eggs on cattle, buf...

The present study determined the prevalence of Cysticercus cellulosae in pigs of Jammu region. A total 600 pork samples were examined and 7 were found positive with a prevalence of 1.16 per cent. Association of porcine cysticercosis with different epidemiological factors was established, breed and husbandry practices showed significant statistical...

Oestrus ovis is commonly known as sheep nasal bot fly, an obligate parasite which causes nasal-sinusal myiasis in small ruminants called as oestrosis. The parasite causes huge economic losses to the meat industry. The study was conducted to determine the prevalence of the parasite in sheep heads in so far less explored areas of Jammu region. The st...

Detection of resistance levels against amitraz and malathion in Rhipicephalus (Boophilus) microplus collected from four districts of Jammu region (India) was carried out using the adult immersion test. The regression graphs of probit mortality of ticks plotted against log values of concentration of drugs were utilised for the determination of slope...

The present study was conducted to determine the clinco-haematological effects of a well characterized Cryptosporidium parvum isolate in Swiss albino mice. Sixty female mice were divided into four groups. Group I mice served as healthy control. In group II, C. parvum oocysts were administered orally, mice of group III were given dexamethasone in dr...

Use of maggots of Lucilia sericata for wound healing in healthy and diabetic rats

The present study was conducted to evaluate the changes in oxidative stress parameters on experimental infection with Cryptosporidium parvum in Swiss albino mice. The mice were divided into four groups viz., group I–IV, each group comprising of 15 mice. Group I mice served as healthy control. In Group II mice, C. parvum oocysts @ 10⁴/os were admini...

A study on Brucellosis in sheep from various parts of Jammu region was conducted. Serum samples (1085) from 13 different parts of Jammu region were collected and subjected to RBPT, mRBPT, STAT and I-ELISA tests. The overall seroprevalence of brucellosis in sheep was found to be 6.54%. The seroprevalence based on individual test was 150 (13.82%) (RB...

Present study deals with efficacy of AV/FRC/18 (Keetguard Liquid), a Polyherbal ectoparasiticidal against lice and tick infestation in buffaloes. All the buffaloes were infested with Haematopinus spp. (Lice) and Boophilus spp. (Ticks). Lice infestation was mostly seen on scapular region, back, groin and axilla region while tick Infestation was most...

A study on brucellosis in goats from 10 different parts of Jammu region was conducted from 2011 to 2013. A total of 724 serum samples was collected and subjected to Rose Bengal plate test (RBPT), modified-Rose Bengal plate test (m-RBPT), standard tube agglutination test (STAT) and indirect-enzyme-linked immunosorbent assay (I-ELISA). The overall se...

A study was conducted to evaluate the efficacy of herbal ectoparasiticidal-Keetguard liquid (M/s Ayurvet Limited) against louse infestation and to control the population of Musca domestica in poultry houses. Keetguard liquid efficacy compared with Deltamethrin. Keetguard liquid application was significantly (p<0.05) effective to decrease the lice c...

An epidemiologic study was carried out to investigate the prevalence and analysis of risk of Cryptosporidium infection in lambs in Jammu district. Faecal samples of 120 lambs of different age groups viz., <1 month, 1-3 months and 3-6 months were assessed. Cryptosporidium oocysts were identified by using modified Zeihl Neelsen technique. Statistical...

Detection of resistance levels against deltamethrin in Rhipicephalus (Boophilus) microplus collected from six districts of Jammu and Kashmir (India) was carried out using the adult immersion test. The regression graphs of probit mortality of ticks plotted against log values of concentration of drug were utilised for the determination of slope of mo...

Detection of resistance levels against deltamethrin and cypermethrin in Rhipicephalus (Boophilus) microplus collected from Jammu (India) was carried out using larval packet test (LPT). The results showed the presence of resistance level II and I against deltamethrin and cypermethrin, respectively. Adult immersion test (AIT) and LPT were used to eva...

The overall prevalence of Giardia spp. in dog population of Jammu region was 40.83 per cent. Prevalence found higher in monsoon season (66.67 per cent) and lowest in winter (13.33 per cent). Age group of 0-6 months showed higher (45.94 per cent) incidences of infection compared to other age groups. Further, the infection was observed higher (46 per...

A study was conducted to determine the incidence of myiasis and bionomics of cyclorrhaphan flies in small ruminants of Jammu. Sheep and goats (10 each) having cutaneous wounds were examined monthly (total 240 animals) for the presence/absence of maggots. The incidence of active maggot wound myiasis was 37.1%. The larvae of Lucilia cuprina were reco...

Cutaneous myiasis caused by the Old World screw-worm fly, Chrysomya bezziana, is a commonly occurring infestation of livestock and man in Southeast Asian and African countries. A buffalo, aged five years was presented with traumatic wound in the abnormal growth at the base of tail, housing maggots in it. Based on morphological features, the collect...

Epidemiology of paramphistomosis in sheep and goats was studied using field and abattoir samples at Jammu, India. Abattoir examination revealed that 36.2 % of sheep and 30.9 % of goats were positive for paramphistomosis. The mean worm counts (±SEM) were 23.5 ± 5.7 in sheep and 19.9 ± 3.5 in goats. On coprological examination, 16.3 % of sheep and 13...

In vitro efficacy of ethanolic extracts obtained from the aerial parts of Ageratum conyzoides and Artemisia absinthium was assessed on Rhipicephalus microplus using adult immersion test (AIT). Five concentrations of the extract (1.25%, 2.5%, 5%, 10% and 20%) with three replications for each concentration were used in the bioassay. In AIT, the maxim...

In vitro efficacy of methanolic extract of Atropa belladonna and its components scopolamine and atropine was assessed against Rhipicephalus (Boophilus) microplus. Five concentrations of the extract (1.25%, 2.5%, 5%, 10%, and 20%) were used whereas scopolamineandatropinewereeachtestedat0.1%.Inadultimmersiontest,theextractwaslethaltoticksat20%concent...

Backyard poultry farming plays an important role in rural people by providing1 eggs, meat and employment. The production of backyard poultry is generally affected by ecto and endo-parasites due to their free range feeding habit and housing practices. The present study was designed to study the prevalence of ectoparasites in back yard poultry in Jam...

Longitudinal study of Cryptosporidium infection was carried in unorganized farm of lambs at Jammu. Fourteen lambs were selected at birth and faeces were collected weekly from animals from 1 to 8 weeks of age 8 weeks of age (9 specimens per lamb), biweekly from lambs 10th -24th weeks of age (8 specimens per lamb), and monthly from lambs 28th -52nd w...

Warble fly infestation is primarily a myiasis of cattle and goat. However, a nondescript sheep from an endemic region was observed with nodules under subcutaneous tissue. So, this paper reports infestation of a sheep with Przhevalskiana silenus larvae in Jammu region of North India. The myiasis was confirmed with parasite morphology and specific hi...

Observations on sarcoptic mite infestation in 1440 buffaloes belonging to 72 unorganised dairy farms of Jammu revealed a 3.33% prevalence rate. Prevalence was significantly (p <= 0.05-0.01) higher during the winter (5.55%) as compared with the summer (2.91%) and the rainy (1.33%) seasons. The disease was recorded in 3.75% and 2.5% of buffaloes up t...

The efficacy of eprinomectin and ivermectin pour-on was evaluated against Sarcoptes scabiei in naturally infested buffaloes. Eighteen animals were allocated into three groups (A, B and C) of six animals each. Animals in group A were treated with eprinomectin (pour-on) @ 0.5 mg/kg; group B with ivermectin (pour-on) @ 0.2 mg/kg while group C served a...

Backyard poultry rearing is an important venture and integral part of mixed farming in most of the developing countries of world. Very scarce reports regarding the effects of parasites on free ranging birds are available from India. The present study was designed to investigate the prevalence of helminth parasites in the backyard poultry farming in...

The aim of the study was to evaluate the in vitro efficacy of different concentrations of ethanolic extract obtained from the aerial parts of Artemisia absinthium in comparison to amitraz on adults, eggs and larvae of Hyalomma anatolicum using the adult immersion test (AIT), egg hatchability test and larval packet test (LPT), respectively. Four con...

In a survey, 1000 sheep and goats reared at organized farms and unorganized flocks of Jammu division were examined for haemonchosis for a period of one year. The incidences at organized farms were 50.87 and 53.57 per cent, in sheep and goats, respectively. The respective values in unorganized flocks were 59.14 and 61.86 per cent. In monsoon season,...

The prevalence of dicrocoeliosis was estimated by the examination of liver of slaughtered goats (n = 228) brought from two major goat rearing regions (Kandi and R.S. Pura) of Jammu province of India. Dicrocoelium dendriticum was found in 18.9 % of the goats, with mean fluke count (±SEM) of 24.9 ± 4.4 (ranged from 0 to 478). A significant seasonal v...

Faecal samples were collected from dairy calves of Jabalpur, Madhya Pradesh and were subjected to nested polymerase chain reaction (PCR) targeting 18S ssu rRNA gene for detection of Cryptosporidium species infection. Of the 219 faecal samples screened through modif ied Ziehl-Neelsen (mZN) staining technique, 76 samples were f ound positive f or Cry...

The resistance status of deltamethrin was evaluated against R. microplus using AIT. The LC50 was calculated as 376.4 ppm and the resistance factor (RF) was 28.08 which indicated level III resistance status. The dose response curves for egg masses, reproductive index and inhibition of oviposition were-22.06 ±1.432,-0.1560 ±0.01876 and 25.00 ±3.010,...

The prevalence of hydatidosis was carried out in slaughtered goats (n = 177) by liver and lung examination at Jammu. The prevalence rate of hydatidosis was 19.8 %. A total of 14.1 % goats had cysts in both the livers and lungs while 2.3 and 3.4 % goats had cysts in the livers or lungs, respectively. A total of 9.1 % goats had fertile cysts. The adu...

The efficacy of minidose of pour-on ivermectin and eprinomectin formulations against first instar larvae of Przhevalskiana silenus was observed in naturally infested goats in the Jammu region, North India. The study was performed in mid August 2011. A total of 280 goats were randomly divided in to 7 groups of 40 each. Goats of the first three group...

In vitro efficacy of ethanolic extracts obtained from the aerial parts of Ageratum conyzoides and Artemisia absinthium was assessed on Rhipicephalus microplus using adult immersion test (AIT). Five concentrations of the extract (1.25%, 2.5%, 5%, 10% and 20%) with three replications for each concentration were used in the bioassay. In AIT, the maxim...