![]() ![]() Yet within those tick-prone tropical zones, there are areas which, by successful control measures, are free of ticks. The cattle tick infests, to a lesser degree, all of the tropical areas, excepting the arid heartland, extending down the east coast to New South Wales. ![]() Brand incidence and size are small in the south-east brands are larger and more frequent elsewhere and particularly in the north. Tasmania and southern West Australia are practically free of brands. The majority of cattle in the north are not polled or de-horned and so horn rakes are more common.Įach different state has its own cattle branding regulations. In the north and in the interior the cattle herds range freely over large areas, much of it covered with bush and scrub which invariably scratch hides. The cattle in the southern regions graze more extensively on improved pastures in developed areas, where commonly the herds are polled or de-horned and are controlled by fences, including barbed wire fencing. Inland, where individual cattle holdings often cover thousands of hectares, climatic conditions are arid to desert, with extreme summer temperatures and sparse pasture growth. In the north, a monsoon weather pattern assures prodigious rainfall for the five to six summer months of the year and dry conditions during winter. On the coastal fringes rainfall is generally plentiful. About half the herd is on pastures north of the tropic of Capricorn. The range of climate, topographic and pasture type is highly variable.
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