Productivity effects of bovine mange and control with ivermectin

Autor: Sara E. Marley, Steffen Rehbein, H.-F Matthes, B Trommer, Martin Visser, Ana E. Maciel, Renate Winter
Rok vydání: 2003
Předmět:
Zdroj: Veterinary Parasitology. 114:267-284
ISSN: 0304-4017
DOI: 10.1016/s0304-4017(03)00140-7
Popis: A randomised block design study was conducted to evaluate the effects of mange on cattle. Twenty-four Simmentaler Fleckvieh bulls were formed into eight replicates of three bulls based on Day -56 body weight (288-414 kg). Within replicates bulls were randomly allocated to groups G1: uninfested control, G2: infested control or G3: infested, treated with 0.2mg ivermectin/kg (1% ivermectin injection; IVOMEC, Merial) on Day 0. The G2 and G3 bulls were infested with Sarcoptes/Chorioptes mites on Days -56 and -49. Feed consumption was recorded daily throughout the study (Days -56 to 56). Body weights were measured and serum samples collected. Mites were counted at bi-weekly intervals from Day -14 on. The carcasses of the bulls and the leather produced from their hides were evaluated. Differences between variables were declared significant if P
Databáze: OpenAIRE