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Distribution of Horn Flies on Individual Cows as a Percentage of the Total Horn Fly Population by J.H. Pruett; C.D. Steelman; J.A. Miller; J.M. Pound; J.E. George is a Immunology and Microbiology article available to read on EtoBox.

What is Distribution of Horn Flies on Individual Cows as a Percentage of the Total Horn Fly Population about?

Twenty-three mixed-breed herd cows were phenotyped for their ability to serve as a suitable host for Haematobia irritans, the horn fly. Based upon consistent observations within the lower quartile or upper quartile of individual fly counts, four cows were phenotyped as low carriers and five cows were phenotyped as high carriers of horn flies. The cows designated as low carriers consistently carried levels of flies below the economic threshold. However, during a period of fly population explosion, low carriers harbored flies well above the economic threshold. Although the number of flies counted on these low carrying cattle increased as the population increased, the relative percentage of the population that they carried changed very little. A hypothesis is proposed to explain this observation, and future studies are suggested.

Who reads Distribution of Horn Flies on Individual Cows as a Percentage of the Total Horn Fly Population?

Author

J.H. Pruett; C.D. Steelman; J.A. Miller; J.M. Pound; J.E. George

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-4017)

Published

2003

Language

EN

Field

Immunology and Microbiology (Life Sciences)