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Hassanain MA, Abd El aziz MM, and Abou el ezz NM

This study was directed towards the use of non-harmful, non-pathogenic bacteria, Bacillus thuringiensis (B.T.) as a nematicide against Trichostrongylus colubriformis in rabbits. Eggs and larvae of adult nematode worms, T. colubriformis were obtained and exposed to six dilutions of B.T. Kurstaki 0.3, 0.6,1,1.5,2 and 2.5 mg and toxin. The biologically treated eggs and larvae were incubated at 28 degrees C. and examined for development, activity and motility. The ovicidal and larvicidal activity of B.T. Kurstaki and its toxin were recorded. Also anthelmintic activity of B.T. Kurstaki against T. colubriformis infection in rabbits were evaluated by SC injection of infected rabbits with a dose of 5mg/kg body weight. Both treated infected rabbits and control ones were sacrificed after 2 weeks post treatment and the intestine was prepared for worm detection. The data were subjected to statistical analysis based on the work of Polo- Pc (Robertson et. al. 1980) to determine LD50 values. The ovicidal and larvicidal activities were higher with prolonged exposure of parasitic eggs and larvae to bacteria and its toxins. The ovicidal activity of bacteria and toxin were increased to be 93.71% and 93.66% respectively at 2.5 mg concentration. The larvicidal effects of bacteria reached to 100% and 98% for bacteria and toxin respectively at 2mg. Also the anthelmintic activity of B.T. kurstaki against T. colubriformis in rabbits showed a daily gradual decrease in number of eggs/gm. Feces and disappearances of eggs after 10 days post treatment. Also the intestine of sacrificed infected rabbits were free from adult nematode. The study reaveled the successful biological treatment of infested rabbits with T.colubriformis by non- harmful bacteria, B.T. kurstaki.

This work was supported by the National Research Center, Egypt.

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Alternative Medicine
Animal Welfare
Clinical Pathology
Dental Congress 1:1
Dental Congress 1:2
Dental Congress 1:3
Dental Congress 2:1
Dental Congress 2:2
Dental Congress 2:3
Emergency & Critical Care
Feline Endocrine & Infectious Dz
Feline Gastroenterology
Feline Urology/Nephrology
Infectious & Zoonotic Diseases
Respiratory Medicine
Surgery & Sports Medicine
Oral Presentations
Morbidity Factors Of Anxiety Disorders
PTT Excision Of Ear Canal Polyps
Rabies Antibody Tests: IHA vs Elisa
Hip Luxation: Surgical Repair
Surgical Repair Of Mitral Regurg.
Dental Pulp/Dentin Deposition
Ehrlichiosis Study, Azarbaijans
You are hereB. Thuring. Effects On Trichostrongylus
Growth Plate Closure Times, Kangal
Revolution, Dog/Cat Flea Control
Electrical Stim. For Nerve Injuries
BAPN-F For Gastroc. Tendon Healing
Patch Test, Dogs; Human Allergy Stats.
Abd. Adhesion Prevention, Omenectomy
Leptospirosis Study, Tehran
Ehrlichiosis, Protein Alterations
Xenograft For Femural Fx. Repair
Omentum For Tendon Healing
Pet Behavior During Bombing
Evaluation Of Silk Suture
Canine Testis Gene Expression
Radiologic Signs, Spirocerca
Feline Interferon In FeLV/FIV Cats
HbA1c In Diabetic Dogs
Bovine Xenograft For Tibial Repair
Tibial Segmental Defect, Treatment
Bovine Bone Pin For Fracture Repair
Rabies Immunity, Tehran, Dogs
Oral Antibiotics, Owner Compliance
Excision Arthroplasty, Dogs/Cats
Ovine Xenograft For Radial Fractures
Endochondral Ossification
Intertrochanteric Osteotomy Fixation
Immunoglobuline, Atopic Dermatitis
Subclinical Dermatophytosis
Probiotic Strains
Efficacy of Revolution (selamectin)
Bordetella Bronchiseptica
Bone Cement and Graft
Femoral Head
Bacterial Infections, Urinary
Mammary Neoplasias
Bilateral Anterior Hemimelia
Adenocarcinoma, Apocrine Glands
Bone Marrow Toxicity
Carmustine, Lymphoma
Desflurane Anesthesia
Nutrition, Hyperlipidaemia
Perianal Fistula
L-Carnitine Supplementation
Poster Presentations