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Field efficacy of minidosed eprinomectin against Hypoderma spp. in dairy cattle.
- Source :
-
Veterinary parasitology [Vet Parasitol] 2006 Jan 15; Vol. 135 (1), pp. 89-91. Date of Electronic Publication: 2005 Nov 21. - Publication Year :
- 2006
-
Abstract
- A chemoprophylactic field trial was conducted to assess the efficacy of pour-on eprinomectin applied at the approximate dose of 50 mcg/kg to dairy cattle with naturally occurring hypodermosis. Two-hundred-eleven cattle, selected from two herds with a high prevalence of Hypoderma spp. infestation, were divided in three groups: Group A (N = 71) was treated with pour-on eprinomectin at the recommended dosage of 500 mcg/kg, Group B (N = 64) at the lower dose of 50 mcg/kg, a third group (Group C, N = 76) served as untreated control group. Treatments were performed in November-December 2002 and the animals were examined for the presence of warbles in the following April and June. No larvae emerged in the treated groups, whereas a variable number of warbles (ranging from 1 to 28) were found in control animals. Adverse reactions were not observed in any animal, and only minor side effects were observed. A larger field trial carried out in the following year (1064 treated and 131 untreated control cattle) confirmed the chemoprophylactic efficacy of minidosed eprinomectin against Hypoderma spp. Administration of eprinomectin minidoses in dairy cattle is interesting because of the low costs involved and no need for milk withdrawal.
- Subjects :
- Administration, Topical
Animals
Cattle
Dose-Response Relationship, Drug
Female
Hypodermyiasis prevention & control
Insecticides administration & dosage
Ivermectin administration & dosage
Ivermectin pharmacology
Larva
Seasons
Treatment Outcome
Cattle Diseases prevention & control
Diptera drug effects
Hypodermyiasis veterinary
Insecticides pharmacology
Ivermectin analogs & derivatives
Subjects
Details
- Language :
- English
- ISSN :
- 0304-4017
- Volume :
- 135
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Veterinary parasitology
- Publication Type :
- Academic Journal
- Accession number :
- 16303252
- Full Text :
- https://doi.org/10.1016/j.vetpar.2005.09.011