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THE EFFECT OF IVERMECTIN POUR-ON ADMINISTRATION AGAINST NATURAL OSTERTAGIA OSTERTAGI INFESTATIONS AND PREVALENCE RATE OF THAT IN CATTLE
Garedaghi Yagoob*, Khayatnouri Mirhadi
ABSTRACT These days one of the real problems that cause the prejudice economic in animal farms yearly is parasitic diseases. For that reason to prevent these problems the use of antiparasitic drugs is necessary. Ivermectin is a broad spectrum antiparasitic agent and different dosage forms such as injection, oral and pour-on used. The aims of this study was evaluation of the efficacy of ivermectin pour-on administration against natural Ostertagia ostertagi nematode infections in cattle and also determine the prevalence rate of this parasite in Tabriz area. In this study in 120 heads of male and female hybrid cattle were carried out LPG (Larva per gram of feces) feces test. Willis method was applied for feces test and Stoll method was used for counting nematode eggs and larves (LPG). After confirm worm contamination and counting Ostertagia ostertagi nematode egg in feces, in infected animals, ivermectin (0.5 mg/kg) pour-on was administered. Feces test was repeated in 1, 7, 21 and 28 day after treatment. Results showed that total prevalence of Ostertagia ostertagi nematode infections was 13.33% in cattleās of Tabriz area. The effects of ivermectin pour-on on Ostertagia ostertagi nematode were 47.15, 70.46, 92.74 and 99.74% in 1, 7, 21 and 28 day respectively. In conclusion, because the effect of this drug against Ostertagia ostertagi nematode was >99% (p<0.05), so in cattle can use this drug in antiparasitic program. Of course the effect of this drug on other nematodes and parasitic infections are needed to be more investigated. Keywords: Ivermectin, Pour-on Administration, Ostertagia Ostertagi, Cattle. [Download Article] [Download Certifiate] |