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The potential toxicity of Australian weeds to goats

The potential toxicity of Australian weeds to goats

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CASTANOSPERMUM AUSTRALE<br />

Alternative Name:<br />

Black bean, more<strong>to</strong>n bay chestnut<br />

Toxicity <strong>to</strong> Goats:<br />

Toxic, high risk<br />

Toxicity <strong>to</strong> Other Species:<br />

Sheep, cattle, horses<br />

Palatability: Not known <strong>to</strong> be eaten<br />

Poisonous Principle:<br />

Unknown<br />

Effects:<br />

Signs and symp<strong>to</strong>ms; Gastro-enteritis causing<br />

severe diarrhoea, with associated weight<br />

loss and depression.<br />

Health and production problems; Affected<br />

animals either die or become ill thrifty.<br />

Integrated Control Strategy:<br />

Usually a Parks and Gardens specimen tree.<br />

Weed clippings and seeds in<strong>to</strong> disposable bags.<br />

Do not feed this plant <strong>to</strong> any lives<strong>to</strong>ck.<br />

Comments:<br />

Poisoning appears <strong>to</strong> be associated with the<br />

ingestion <strong>of</strong> fallen seeds in spring and early<br />

summer.<br />

A medium <strong>to</strong> large rain forest tree, the leaves<br />

are glossy green on the upper surface. <strong>The</strong><br />

flowers are pea-shaped and reddish/yellow,<br />

and the fruits are large woody inflated pods.<br />

<strong>The</strong> timber is hard and dark brown, ideal for<br />

cabinet making.<br />

Poisoning occurs in dry seasons when fodder is<br />

scarce. Some cattle develop a preference for<br />

the seeds.<br />

21

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