Dairy Science Commons^™

Brucellosis And Its Control With Strain 19 Vaccine, C R. Toop

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

DAIRY farmers of a generation ago will not need to be reminded of the ravages of contagious abortion or of the need for the continued application of effective control measures.

Fifteen or 20 years ago this disease which we now call Brucellosis was rife throughout the dairying districts of the State and it exacted a heavy toll.

The "abortion storm" was a common occurrence and it was not unusual for 30 per cent., and sometimes considerably more, of the cows in a herd to lose their calves at about the sixth month of pregnancy.

Cutting Costs In Calf Rearing, N A. Scott

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

RAISING calves as herd replacements and as a sideline to provide added income is becoming increasingly popular.

This is particularly noticeable since the inception of the Artificial Breeding Scheme whereby farmers are at liberty to breed herd replacements from their most productive cows and use semen from beef breeds for the poorer types.

Cattle Lice : Spray Now For Prevention, F C. Wilkinson

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

ALTHOUGH lice infestation can occur in any season of the year, the heaviest infestations are found during the winter.

This build up of lice infestation normally starts in the autumn but if the cattle are treated by spraying at this period, the majority of the lice are killed and the build up is prevented.

Thus the old saying "Prevention is better than cure" certainly applies with regard to cattle lice.

Milk Fever (Hypocalcaemia) Of Cows, Department Of Agriculture, Western Australia

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

THE condition known as milk fever is almost essentially a disease of highly productive adult milking cows at the time of calving.

It is characterised by a low blood calcium level causing a sudden general depression of consciousness of the cow and muscular paralysis.

Without treatment most cases result in the death of the cow.

Rearing Calves On Ten Gallons Of Milk, L C. Snook

Journal of the Department of Agriculture, Western Australia, Series 3

Only a limited number of calves are reared on dairy farms which sell whole milk. At current prices, it is only a very good calf which is worth more than the milk it would consume, and as a result, the heifer calves from thousands of productive cows are each year slaughtered at birth. In the past the whole milk supplier was able to obtain his herd replacements from farmers in the more distant dairying districts who, of necessity sold butterfat and could rear calves on separated milk.

Layout Of A Dairy Premise, A E. Baker

Journal of the Department of Agriculture, Western Australia, Series 3

As the average dairyman spends a large proportion of his working time in the milking shed throughout the year, careful attention to the layout of these premises will give good returns in time saved, and will enable the task of milking to be carried out efficiently and with a minimum of discomfort.

A Note On Chronic Footrot Of Dairy Cattle

Journal of the Department of Agriculture, Western Australia, Series 3

With the advent of treatment with ™ sodium sulphamezathine for footrot of dairy cattle, many of the troubles associated with this condition have largely been overcome.

However, the importance of early treatment is sometimes overlooked and Fig. 1.—Chronic footrot caused the ragged growth of new bone shown in the two lower pictures. At the top are the bones of a healthy foot from an animal of similar size. some farmers are inclined to blame the drug when treatment has been commenced after the animal has been affected for some time and a cure does not result. Why treatment is not …

The Shorthorns, J A. Mallett

Journal of the Department of Agriculture, Western Australia, Series 3

Among "The Stud Farm of the World" the red, white and roan Shorthorns have always been given pride of place in the cattle section. They were the first of the popular cattle breeds existing today to be systematically improved, and at the present time approximately three-quarters of all the cattle in the British Isles carry a preponderance of Shorthorn blood.

An Open Letter To Dairyfarmers, H P. Schapper

Journal of the Department of Agriculture, Western Australia, Series 3

As dairyfarmers, you are part of one of Australia's major industries—an industry which, according to the 1947 Census employed 106,526 persons in dairyfarming alone. As dairyfarmers, you contributed to the 1,200 millions of gallons of milk produced last year which incidentally was worth something like £80,000,000 net at the farm gate. Viewed from the nutritional standpoint, you are even more important. You contributed to the supplies of butter, milk and milk products which on a per head per day basis were the source of 21% of the total calories, 16.4% total protein, 44.6% total fat, 76.5% total calcium, 49.5% vitamin …

Disease Of Dairy Cattle - Warts And Eye Cancer, J Craig

Journal of the Department of Agriculture, Western Australia, Series 3

Papilloma or warts are by no means uncommon in dairy cattle in Western Australia. In maturing cows, they usually occur on the udder, while in young stock they may be found on the head, neck, and shoulders. In bad cases, a large proportion of the body area may be covered with the warts, forming large cauliflower- like masses which often bleed easily.

Better Dairying Competition 1951-1952, H G. Elliott

Journal of the Department of Agriculture, Western Australia, Series 3

The success of the Better Dairying Competitions in previous years prompted the Western Australian Pasture Improvement Committee of the Australian Dairy Produce Board to again sponsor a similar competition during 1951-1952. The committee which receives funds from the Australian Dairy Produce Board and the Rural Credits Branch of the Commonwealth Bank, offered substantial cash prizes in the six zones as detailed below.

Mastitis, J Craig

Journal of the Department of Agriculture, Western Australia, Series 3

Mastitis, or inflammation of the udder, is responsible for tremendous losses to the dairying industry throughout the world. The disease may be caused by several different types of bacteria, the most common of which, the Streptococcus, is responsible for about 80% of all cases of mastitis. The Staphylococcus is involved in about 10% of cases and the remaining 10% are caused by other micro-organisms.

Strain 19 In Western Australia

Journal of the Department of Agriculture, Western Australia, Series 3

Since the inauguration of its brucellosis control campaign in 1946, the West Australian Department of Agriculture has inoculated nearly 72,000 dairy heifers with Strain 19 vaccine and established a remarkable degree of control throughout the dairying districts. As the success of the control measures is largely dependent upon the vaccination of each year's crop of heifers, the work is now being intensified and members of the field staff are again busy in the dairying areas.

Leaflet No 1000 - Rate Of Milking With Machines - Further Results From Western Australian Herds, R. A. Bettenay

Bulletins 1 - 2999

IN an earlier article by this Department (Vol. XXVI No. 2 PP. 99-104) some introductory remarks were made on a study being conducted on the rate of milking by machine, and preliminary findings were recorded. The conclusion was reached that the rate of milking on most farms was too slow, it being considered that in the vicinity of five minutes per cow should be sufficient under machine milking and that, if the teat cups were left on for a longer period than this, damage to the udder was likely to follow.