Pharmacology, Toxicology and Environmental Health Commons^™

Cattle Fertility Not Harmed By Pour-On Insecticides, D J. Barker

Journal of the Department of Agriculture, Western Australia, Series 4

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.

Emergency Chlorination Of Farm Water Supplies, H C. Hughes

Journal of the Department of Agriculture, Western Australia, Series 4

TOWARDS the end of summer (and especially in a drought) the risk of water in dams, soaks, wells or tanks becoming polluted is increased.

Bore water is much less likely to be affected unless the bore is poorly sited near a farm building, such as a shearing or milking shed, a pig pen, or a septic tank system.

List Of Registered Stock Foods : 1963-64, H G. Cariss

Journal of the Department of Agriculture, Western Australia, Series 4

All foods for stock sold in Western Australia are required by the Feeding Stuffs Act, 1928-1951, to be registered annually with the Department of Agriculture.

A list of stock foods which have now been registered with the Department of Agriculture for the current registration year appears here.

Marker Dyes In Antibiotics, K Needham, N. Ingleton

Journal of the Department of Agriculture, Western Australia, Series 4

'For some years the presence of penicillin in milk has been a serious problem for the dairy industry.

When cows are treated for mastitis with antibiotics some residue finds its way into the milk.

Unless the milk from treated cows is withheld for at least 72 hours after treatment this residue enters the bulk milk supply.

Drugs For Worm Control. 1. Sheep Drenching Trials With Mk 360, M R. Gardiner, J. Craig

Journal of the Department of Agriculture, Western Australia, Series 4

DRENCHING sheep with drugs designed to eliminate parasites has become an established practice in the higher rainfall districts of Western Australia.

has been tested in many trials, and their is little doubt that drenching sheep clinically affected with worms—the so-called "tactical" drench—is valuable and necessary.

However, there is usually less general acceptance of the value of "strategic" drenching— the prevention of clinical parasitism by giving the drug at certain specific times, pre-determined by a knowledge of the numerical rise and fall of the various parasites within the animal body.