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Efficient beef production from grazed pasture.
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1998-11-01
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O'Riordan, E.G., O'Kiely, P., Keane, M.G., Efficient beef production from grazed pasture, End of Project Reports, Teagasc, 1998.
Abstract
Documented data comparing both cutting and grazing grass growth
rates in Ireland are minimal. Most protocols for measuring grass
growth involve a cutting regime of either 3 or 4-week cycles. The
effect of the grazing animal is absent in most situations. However,
herbage production can readily be affected by the rate of fertiliser
nitrogen used and the frequency of grazing/cutting management
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practices employed. The first two experiments reported here were
undertaken to assess grass growth under grazing and cutting
regimes and to determine the extent of differences which may arise
from different harvesting procotols. The third experiment investigated
the effect of nitrogen application rate and regrowth interval
on annual herbage production.
Early grazing: The experiments reported
here were conducted to examine the effects of early turnout to
grass on beef cattle production and on sward productivity. Autumn pasture production: The present series of experiments investigated the effects of
autumn closing dates on herbage yield and quality as well as their
effects on sward productivity. The effects of short and long grazing
rest intervals were evaluated in the context of autumn grass
growth and their effects on subsequent spring growth.