Cattle, Insecticides, Bovicola bovis, Fertility
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Pour-on insecticides have been a feature of lice and fly control on cattle for many years and in many countries, but it seems that only in Western Australia have they been suspected of lowering fertility.
Frequent reports of this effect have been received by the Department of Agriculture since the first pour-on insecticide was marketed in W.A. in the late 1960's, culminating in the research work reported below.
The work clears pour-ons as a cause of reduced fertility in herds.
Barker, D J.
"Cattle fertility not harmed by pour-on insecticides,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 17:
1, Article 11.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol17/iss1/11