Sheep and Goat Science Commons^™

Drench Resistence : A Large Economic Cost, Brown Besier, Jill Lyon, Norm Mcquade

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

Drench restistant worms can cost sheep farmers a lot of money - more than most probably think. Brown Besier, Jill Lyon and Norm McQade discuss some new research that shows the value of conducting routine drench tests to ensure effective worm control.

Sustainable Worm Control In Sheep, Robert Wroth

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

Deciding on the best worm control program for your farm can be a complex matter, but guidelines in this article by Robert Wroth should make it simpler.

Breeding Sheep For Worm Resistance, John Karlsson, Johan Greeff, Julia Harris

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

Sheep production os one of Western Australia's most important agricultural industries. However, it is faced with the serious threat of sheep worm populations becoming increasingly resistant to the available drenches.

Although it's not a 'quick fix' solution, part of the long term answer may be selection for sheep with greater resistance to worms.

Worm Control In Sheep In Western Australia. Crack Down On Worms: An Information Guide For Advisers, Consultants, Livestock Personnel And Farmers, Department Of Agriculture, Western Australia

Animal production and livestock published reports

In Western Australia’s winter rainfall areas, the control of gastro-intestinal sheep worms is based on the strategic timing of drenches.

Sheep are drenched at a time that reduces the contamination of pastures with worm eggs and larvae in late summer and autumn. The timing of the drenches is particularly important for the control ofbrown stomach worms (Ostertagia species) and black scour worms (Trichostrongylus species)

Drenches given in late spring, when pasture is starting to dry off, and again in summer, successfully reduce pasture contamination in mid summer and autumn. A faecal egg count will determine the need and timing of …

The Sheep Lice Detection Test, Peter Morcombe

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

Sheep farmers would agree it is difficult to find sheep lice when carrying out an inspection.

The lice detection test makes this task easier and helps farmers decide how to control lice. The test also helps community liaison groups with eradication of lice infestations in specific areas, and provides data for epidemiologists to monitor changes in prevalence of lice and efficacy of treatments. Tests are much cheaper than flock inspection on the farm.

The present lice detection test was developed by the Australian Wool Testing Authority (A WTA) and introduced as an integral part of the Western Australian Sheep Lice …

Summer Drenching Of Sheep : New Recommendations For High Rainfall Areas, Brown Besier, Jill Lyon

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

'Summer drenching' has been a highly successful strategy for controlling sheep worms in Western Australia's winter rainfall regions for many years. Drenching to remove worm burdens in summer, when the risk of reinfection by worm larvae is low, is an efficient basis to year-round worm control. The Department of Agriculture recently altered its recommendations for the timing of summer drenches to take account of new findings regarding the survival of worm larvae over summer. It now recommends that sheep farmers give the first summer drench when the pasture is beginning to dry off, in spring in most locations. Experiments atMt …

New Approach To Control Of Drench-Resistant Sheep Worms On Farms, Di Hopkins

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

Worms cost the Western Australian sheep industry up to $120 million every year, and anthelmintic (drench) resistant worms account for an increasing proportion of this amount. Resistant strains of sheep worms have been found on about 95 per cent of farms tested. This alarmingly high level indicates that all farmers should have a resistance management strategy which includes having a resistance test done on their farms before they drench their sheep. However, only about 20 per cent of farmers have had a resistance test done. Farmers often believe drench resistance is not a problem on their farms, mainly because production …

Survey Of Parasite Control Practices In Sheep And Cattle, J R. Edwards, R V R Gwynn, R A. Love, Richard Thomas Norris, G Dalton-Morgan, Brown Besier

Technical Bulletins

Farms in the Albany, Esperance, Jerramungup and Katanning districts were surveyed to determine parasite control strategies currently used, to evaluate the adoption of recommended control practices and to detect areas of ineffective parasite control. For cattle, the number of drenches given in the low rainfall zone was higher than the number given in the high rainfall zone.

Bulletin No 4101 - Flystrike - A Manual For Its Prevention And Control, N Monzu Dr

Bulletins 4000 -

The sheep blowfly is still regarded as the Australian sheep industry's most­damaging pest. Estimates of the cost to the industry, through production losses and prevention and control measures, exceed $ I 00 million in a year. This bulletin comprises the most relevant information available on:

• Blowfly types and life cycles

• Conditions predisposing sheep to flystrike

• The mechanism of flystrike

• Methods of preventing and controlling strike.

• Current research - including the development of a forecasting system for body strike.

Flystrike In Sheep : Secondary And Tertiary Flies Striking Sheep In Western Australia, N Monzu

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

Unlike primary species of blowflies, the secondary and tertiary species of flies cannot initiate a strike, but their activity in the presence of the primary blowflies becomes significant in the death of struck sheep. This is particularily so when the hairy maggot blowfly is involved. Future management of sheep flocks to minimise deaths may require recognition of these secondary and tirtiary flies.

This article presents some basic facts about these flies.

New Policy Hits Hard At Sheep Lice, F C. Wilkinson

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

In March 1977 the regulation requiring compulsory routine dipping of all sheep within 30 days of shearing changed, and only infested flocks were required to be dipped. This change has allowed concentrated eradication efforts.

Flystrike Control Programmes, H E. Fels

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

THE various flystrike control methods all avoid susceptible patches of skin on the sheep.

To avoid work—

• choose methods that give the most control for the least effort, and

• combine these methods into a system that works well.

How To Control Flystrike In Sheep, H E. Fels

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

FLYSTRIKE affects incomes and efficiency because a large part of the work done on sheep farms is to prevent or treat it, and because it kills sheep and reduces the amount and quality of production.

Dogs, Tapeworms, Cysts : And Soiled Sheep, Department Of Agriculture, Western Australia

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

To protect our export markets it is necessary to meet the required standards and to eliminate as far as possible any sources of cysts, contamination, blemished carcasses or other defects in meat.

Some of these things are beyond the control of the individual farmer, but there are some things he can do to help ensure that the sheep he sends to abattoirs are free of defects which threaten export markets.

Feeding And Care Of The Farm Dog, J B. White

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

Most farmers acknowledge the value of a well trained dog when handling sheep, but few appreciate that without correct care and feeding such a dog may reduce their profits and constitute a hazard to the health of themselves and their families.

Cysticercus Ovis : Sheep Measles, G C De Chaneet

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

CYSTICERCUS OVIS, commonly known as sheep "measles", has come into prominence in the last few years because of the rejection of affected carcasses by overseas markets. Recently it was one of the causes of a complete ban on imports of Australian mutton by-the.iJnited States and Canada.

Hydatid Disease In Western Australia, G C De Chaneet

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

BECAUSE hydatid disease is a disease of humans as well as animals, every dog owner should be aware of the conditions that perpetuate hydatids and the methods of control.

The incidence of hydatids in Western Australia in the past has not been high.

However, the increase in sheep numbers over recent years, together with the intensification of farming methods, may lead to a rise in incidence unless stock owners, particularly sheep farmers, take steps to control the disease.

Sheep Worm Control And Lambing Time In High Rainfall Areas, F C. Wilkinson

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

Indications from a continuing sheep trial at Margaret River are that farmers in high rainfall areas could increase stocking rates and lamb growth rates by lambing in September- October rather than July-August.

The results also indicate that farmers in the area may be spending more than necessary on worm control.

Lupinosis In Sheep. 1. Laboratory Studies, M R. Gardiner, M. C. Nottle

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

IN earlier articles by Bennetts (1957, 1960), the clinical and pathological features of lupinosis, as seen in field outbreaks, were described.

The suggestion was made that the roughage portion of the lupin plants was responsible for the disease.

More recent observations suggest a relationship between parasitism and lupinosis.

Key To The Genus Ornithodorus (Of Russia) (After Pavlovsky, 1955), I. G. Galuzo

United States Naval Medical Research Unit 3: Publications

English translation from Russian of pp. 83-85 of Galuzo (1957) Argasid ticks and their epizootological significance. Alma-Ata (Acad. Sci. Kazakh SSR).

Females and Males

Ornithodoros papillipes (Birula, 1895)

O. verrucosus (Sas, Fen. 1934)

O. tartakovskyi (Olenev, 1931)

O. nereensis (Pavlovsky, 1941)

O. alactagalis (Issaakjan, 1936)

O. canestrini (Birula, 1895)

O. lahorensis (Neumann, 1908)

Experiments In Transmission Of Theileriasis And Anaplasmosis Of Sheep Through Ticks Ornithodoros Lahorensis And Haemaphysalis Sulcata, P. A. Bitukov

United States Naval Medical Research Unit 3: Publications

First paragraph:

In conducting inspection of sheep on haemosporidiosis in some districts of South-Kazakhstankoi region, we repeatedly observed theileriasis and anaplasmosis of sheep.

Note: Numerous other experimental data in this paper are omitted from the present translation. This report is of special interest because it establishes the role of an argasid tick as a vector of blood protozoa. Translation made and distributed by Medical Zoology Department, U. S. Naval Medical Research Unit no. 3, Cairo, Egypt.