Sheep and Goat Science Commons^™

The Causes And Control Of Infertility Of Rams, J Craig

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

FACTORS other than physical faults often cause infertility of rams.

Obviously, it is important to distinguish between temporary and permanent infertility to apply the proper remedy.

The Effect Of Mulesing And Tailstripping At Lamb Marking On Subsequent Lamb Growth And Incidence Of Fly Strike, R J. Lightfoot, W. L. Mcgarry

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

THE modified mules and tailstrip operation has been shown to be highly effective in reducing the incidence of crutch strike in sheep.

In Western Australia the operation is usually performed on ewe weaners or hoggets immediately after either crutching or shearing.

Starvation/Mismothering : A Major Cause Of Lambing Losses, Stanley M. Dennis

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

RESULTS of the preliminary survey into the infectious causes of perinatal lamb mortalities carried out last year by the Department of Agriculture showed that starvation/ mismothering was the most important single cause of death.

Tales From Dead Lambs : Results Of A Survey Of Lambing Losses, Stanley M. Dennis

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

During the past year the Animal Health Laboratory has been conducting a preliminary survey into the infectious causes of abortion in sheep and perinatal lamb mortalities. This work was prompted by:

* The diagnosis of vibrionic abortion for the first time in Western Australia in 1961, and

* The estimate that 30 per cent, of all ewes mated in Australia each year may fail to produce a viable lamb that survives to marking time.

This enormous lamb wastage is due to a variety of causes and the role of infectious agents has yet to be evaluated.

A Simplified Mulesing Crush, G T. Halpin

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

DURING the last two years Mr. Tom Flanigan, a mulesing contractor in a large area centred at Katanning, has performed the mules-tailstrip operation on many thousands of lambs and sheep.

Mules And Tailstrip Lambs At Marking Time, R J. Lightfoot

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

THE mules and tailstrip operation is basic to fly strike control and should be routine practice in all flocks in the same way as other accepted management practices like marking and crutching.

Ram Management, J Craig

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

REALISING that good rams play an important role in flock improvement, the wise flock owner selects his rams after careful consideration of their breeding, type, production and fleece characters or potential meat-producing qualities.

Good ram management can have a major effect on lambing percentages. In this article Senior Veterinary Surgeon J. Craig outlines methods of achieving the best results from rams.

Contagious Ophthalmia (Pinkeye) Of Sheep, C R. Toop

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

CONTAGIOUS OPTHALMIA, better known to the sheep owner as "pinkeye", is a common disease of sheep particularly during the summer months.

It is known to occur in most countries where sheep are kept and is prevalent in Australia throughout the sheep-raising areas.

The Control Of Infectious Abortion In Sheep, Stanley M. Dennis

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

Infectious abortion con be an important cause of lambing losses in some flocks.

In this article Senior Veterinary Pathologist Dr. S. M. Dennis describes the symptoms of infectious abortion diseases and gives some recommendations for their control.

Lice And Keds In Sheep, C R. Toop

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

BODY LICE and the so called ticks or keds are the most serious of the external parasites which infest sheep in Western Australia.

Unless they are controlled by systematic dipping, these pests can cause considerable financial loss to flock owners.

Recent Advances In Lupinosis Research, M R. Gardiner

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

BECAUSE of the important role which lupins play in light land development, flock losses from the effects of lupinosis must inevitably continue to be a matter of serious concern.

However, research carried out during the last four years has considerably advanced our knowledge of the fundamental nature of this disease and of the way in which it may be prevented or controlled.

Infectious Abortion Diseases In Sheep, Stanley M. Dennis

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

There are increasing signs that infections causing abortion in sheep are an important source of lambing losses in Western Australia.

The organisms responsible may cause losses at any time from the 60th day of pregnancy to a week after birth.

This article discusses the symptoms, effects and control of infectious abortion and associated losses, and outlines a research project started this year to investigate them.

Ovine Listeriosis : A Newley Diagnosed Cause Of Infectious Abortion And Lamb Losses In Western Australia, Stanley M. Dennis

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

LISTERIOSIS is an infectious disease occurring in animals and man and is caused by the bacterium Listeria monocytogenes.

It is worldwide in distribution and has been reported in 28 species of animals and 11 species of birds.

This disease was recently diagnosed in Western Australia for the first time when it was found to be a cause of abortion and perinatal lamb losses in sheep.

Oxalate Poisoning. 1. The Effect Of Oxalate-Containing Plants On Ruminants, M R. Gardiner

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

Poisoning by plants which contain salts of oxalic acid may be a more common cause of stock losses in Western Australia than was previously thought.

This article describes the effects of these plants on ruminants and outlines an experiment in which the toxicity of soursob was examined.

An article in next month's Journal of Agriculture will describe the most important oxalate-containing plants found in Western Australia.

Weaning And Weaner Management, R J. Lightfoot

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

MOST of Western Australia's Merino flock owners wean their lambs in the months of August, September and October.

Too often this is done indiscriminately to fit in with other operations, or lambs are left on their mothers for long: periods until the ewes are remated.

Rearing Orphan Lambs, Laurence C. Snook

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

Orphan lambs are easy to rear if a few basic principles are understood.

Lambs Need Drenching At Weaning, Department Of Agriculture, Western Australia

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

RECENT losses among young lambs due to heavy infestations of black scour worm (Trichostrongylus species) have indicated that this year the problem of worms in weaners may be more troublesome than usual.

Mulesing And Tailstripping : For The Prevention Of Fly-Strike, W L. Mcgarry

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

MULESING and tailstripping are basic to fly strike control.

During emergencies and bad fly waves they may need to be supplemented by temporary protective measures such as jetting and crutching.

Mycotic Dermatitis (Lumpy Wool) And Fleece Rot Of Sheep, J Shilkin

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

Matted and sometimes discoloured specimens of wool are often received at the Department of Agriculture during seasons of heavy rainfall.

Two similar but quite distinct diseases are recognised as having caused this condition.

They are mycotic dermatitis (lumpy wool) and fleece rot. Both conditions damage the fleece and render affected sheep susceptible to blowfly strike.

Facial Eczema In West Australian Sheep, M R. Gardiner, M. Nairn

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

SINCE 1894 when the disease was first described in New Zealand, the term "facial eczema" has been used to describe a specific photosensitization of sheep in that country.

A Seasonal Reminder For Flock Owners : Care Needed In Lamb Marking, Department Of Agriculture, Western Australia

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

WITH winter and spring lambing becoming increasingly popular there are still plenty of lambs to be marked this year.

A word of warning now may save unnecessary mortalities due to lamb marking diseases in the next few months.

Ovine Vibriosis : A New Cause Of Sheep Infertility, M R. Gardiner, M. E. Nairn, I. J. Miller

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

Vibrionic abortion of sheep has caused heavy losses in a number of wheatbelt flocks. In several flocks up to 50 per cent, of the ewes aborted as a result of this newly reported disease.

This article gives the history of the disease in this State, and describes the symptoms for the benefit of other farmers whose flocks may be affected. Ewes become immune after the first attack.

Mulesing At Lamb Marking Time, M Butler

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

REALISING that mulesing and tailstripping of sheep is the most effective system devised to counteract the loss and damage caused by blowfly strike in their sheep, many farmers and pastoralists are now incorporating it as standard practice in their system of sheep husbandry.

Mulesing Pays, W L. Mcgarry

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

THERE is little doubt that the combined mules and tail strip treatment is still far ahead of all other blowfly control measures.

This treatment can and should be carried out as farm or station routine practice in the same way as are other accepted management practices, such as lambmarking, drenching, etc.

Post Dipping Lameness In Sheep, I J. Miller

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

LAMENESS can be a most distressing feature at any time of the year, bat when It coincides with the early onset of hot weather and fall-off in nutritive level of the feed, results may have a far reaching effect on the flock.

White Muscle Disease Of Sheep : Symptoms And Pathology, M R. Gardiner

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

WHITE Muscle Disease (WMD) was recognised for the first time in Western Australian sheep during the winter of 1960.

The first outbreak occurred on a property in the South Stirling district in the middle of July and this was followed by outbreaks in August, September and early October, at Mayanup, Kendenup, Mt. Barker, Duranillin, Kojonup, South Stirling and Pinjarra.

It's Dipping Time, Department Of Agriculture, Western Australia

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

ANNUAL dipping is compulsory within six weeks of shearing.

Here are the main points to keep in mind for successful and trouble-free dipping.

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.

Can Worms Be Controlled By Correct Feeding?, Laurence C. Snook

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

THE extensive losses which result from the ravages of internal parasites are a matter of serious concern.

Livestock owners realise this all too well and welcome advice concerning control measures which can be adopted. Unfortunately, it is not possible to give clear cut advice on the subject.

Much publicity is given to the use of drugs which will expel the worms. Various systems of strategic drenching have been developed.

It is well to remember, however, that drenching is only one of many methods which can be used to control worm infestation.

In this talk attention will be concentrated on experimental …

Some Notes On Worms In Sheep In Southern Western Australia, I W. Parnell

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

DURING the last fifty or more years several surveys have been made of the worm parasites which occur in southern Western Australia.

In the 'fifties, thanks to the stimulus of Mr. H. McL. Gordon, supported by Dr. H. W. Bennetts, observations were made on the sequence of the infestations in autumn-born weaners in the country stretching from Moora to Cranbrook and Bridgetown, and later near Geraldton and Esperance.