Abstract

Grazing experiments at Armidale have shown variable reiponses in sheep production to fodder conservation. (1) Responses to conservation vary with stocking rate. At low stocking levels, responses are very small. At very high stocking levels, conservation practice may result in a lower production. The greatest response occurs at an intermediate stocking rate. (2) Results depend on rainfall. (3) Wool production may be increased by conservation but reproduction and growth are much less respoilsive in the Armidale environment. These findings can be explained by a simple energy flow model. The model provides additional insights on factors such as the timing of feeding, Ihe importance of hay quality and the relatively low potential of fodder conservation for increasing meat, production.

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