Effect Of Routine Deworming On The Development Of Resistance Against Git Nematodes In Sheep
By: Akram, M
| Prof.Dr.Muhammad Ashraf.
Contributor(s): Dr. Haji Ahmad | Dr. Khalid Pervaiz | Faculty of Veterinary Sciences.
Material type: 
BookPublisher: 1994Subject(s): Department of Clinical Medicine & SurgeryDDC classification: 0421,T Dissertation note: In this project the effect of routine deworming on GIT nematodes in sheep was studied with particular reference to the development of drug resistance. Comparison was studied by treating the flocks where routine deworming was practiced with the levamisole and albendazole and where routine deworming was not practiced with any medicine. One twenty sheep positive for GIT nematodes infection were selected. They were divided into six groups A, B, C, D, E and F comprising of 20 animal in each group. Animals of group A, B, C were selected from two different floclwhere routine deworming was practiced with levamisole and albendazole respectively. Animals of group D, E, & F were selected from unregistered private flocl where routine deworming was not practiced. Rectal faecal samples were collected before medication and at the seventh day of medication from all the six groups of sheep to count the eggs per gram of faeces and to count the number of larvae after culture under laboratory conditions.
Groups A & D were treated with the levamisole orally at the dosage rate of 7.5 mg/kg. Groups B and E were medicated with albendazole orally at the dosage rate of 5 mg/kg and groups C & F were kept as control and remained untreated. Then the efficacy of levamisole and albendazole in addition to the development of resistance against these anthelmintics was estimated.
Experimental study revealed that the levamisole showed 98.73% efficacy in the first timely dewormed flock and no any resistance was recorded whereas, 72.55% efficacy was noticed in the regularly dewormed flock, with a slight resistance. Albendazole had 97.13% efficacy in the first timely dewormed private flock and 61.24% efficacy in the regularly dewormed flock. This shows a strong evidence of resistance in the albendazole treated flock.
No side effect were observed in both the groups. Levamisole was found better dewormer with less chances of resistance. However, both drugs can be used safely to achieve control of nematode parasites in sheep.
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Thesis
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UVAS Library Thesis Section | Veterinary Science | 0421,T (Browse shelf) | Available | 0421,T |
In this project the effect of routine deworming on GIT nematodes in sheep was studied with particular reference to the development of drug resistance. Comparison was studied by treating the flocks where routine deworming was practiced with the levamisole and albendazole and where routine deworming was not practiced with any medicine. One twenty sheep positive for GIT nematodes infection were selected. They were divided into six groups A, B, C, D, E and F comprising of 20 animal in each group. Animals of group A, B, C were selected from two different floclwhere routine deworming was practiced with levamisole and albendazole respectively. Animals of group D, E, & F were selected from unregistered private flocl where routine deworming was not practiced. Rectal faecal samples were collected before medication and at the seventh day of medication from all the six groups of sheep to count the eggs per gram of faeces and to count the number of larvae after culture under laboratory conditions.
Groups A & D were treated with the levamisole orally at the dosage rate of 7.5 mg/kg. Groups B and E were medicated with albendazole orally at the dosage rate of 5 mg/kg and groups C & F were kept as control and remained untreated. Then the efficacy of levamisole and albendazole in addition to the development of resistance against these anthelmintics was estimated.
Experimental study revealed that the levamisole showed 98.73% efficacy in the first timely dewormed flock and no any resistance was recorded whereas, 72.55% efficacy was noticed in the regularly dewormed flock, with a slight resistance. Albendazole had 97.13% efficacy in the first timely dewormed private flock and 61.24% efficacy in the regularly dewormed flock. This shows a strong evidence of resistance in the albendazole treated flock.
No side effect were observed in both the groups. Levamisole was found better dewormer with less chances of resistance. However, both drugs can be used safely to achieve control of nematode parasites in sheep.
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