| Literature DB >> 10714465 |
N N Jonsson1, A L Matschoss, P Pepper, P E Green, M S Albrecht, J Hungerford, J Ansell.
Abstract
The effects of vaccination with the Bm 86 vaccine TickGARD(PLUS) against infestation with cattle tick (Boophilus microplus) and of holding cattle on a feedpad until 09:00 hours after the morning milking was tested on 40 mid lactation Holstein cattle using a factorial design. Vaccination resulted in a 56% reduction in tick numbers in the field over one generation, and a 72% reduction in laboratory measures of the reproductive efficiency of ticks. The liveweight gain of vaccinated cattle over 27 weeks was 18.6 kg higher than that of controls, and vaccinated cattle tended to have lower somatic cell count in milk (SCC). There were no other significant differences in measures of production. Cattle kept on the feedpad after the morning milking carried 26% more ticks than those returned immediately to their paddocks.Entities:
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Year: 2000 PMID： 10714465 DOI： 10.1016/s0304-4017(99)00213-7
Source DB: PubMed Journal: Vet Parasitol ISSN： 0304-4017 Impact factor: 2.738