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Inter-relationships between pasture growth and senescence and their effects on live-weight gain of grazing beef cattle

Published online by Cambridge University Press:  27 March 2009

J. P. Ebersohn ,
K. W. Moir  and
F. Duncalfe
J. P. Ebersohn
Affiliation:
Queensland Department of Primary Industries, Animal Research Institute, Yeerongpilly, Brisbane, Australia, 4105
K. W. Moir
Affiliation:
Queensland Department of Primary Industries, Animal Research Institute, Yeerongpilly, Brisbane, Australia, 4105
F. Duncalfe
Affiliation:
Queensland Department of Primary Industries, Animal Research Institute, Yeerongpilly, Brisbane, Australia, 4105
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Summary

On 13 pastures grazed by beef cattle live-weight gain (range, 0·34–1·12 kg/head/day) was significantly correlated with non-green grass content of pasture. In turn, non-green grass in pasture was not significantly correlated with non-green grass in oesophageal extrusa. Live-weight gain was largely explained (adjusted R2 = 0·91) by non-green grass content of pasture, cell-wall content of green-grass leaf and pasture dry matter on offer in a quadratic model. The quadratic form was best understood in terms of pasture growth with which non-green grass content of pasture was significantly and negatively correlated.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 104 , Issue 2 , April 1985 , pp. 299 - 301
Copyright
Copyright © Cambridge University Press 1985

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References

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