01932naa a2200277 a 450000100080000000500110000800800410001910000170006024501080007726000090018552011450019465000240133965000180136365000140138165000230139565000100141865000150142865000100144365000170145365300130147065300180148365300210150170000190152270000200154177300930156115221882023-06-13       1983    bl uuuu     u00u1 u    #d1 aSMITH, J. F.  aThe effect on the duration and timing of flushing on the ovulation rate of ewes.h[electronic resource]  c1983  aAbstract: In each of 2 years Coopworth ewes were randomised to 8 groups which were offered 2 levels of herbage allowance (1.0 and 5.0 kg DM/ewe/d) from mixed pasture for varying periods during the 6 weeks prior to a synchronised mating. The ovulation rates of ewes fed at the lower allowance and then given the higher allowance for periods of 1 or 2 weeks prior to mating were not different from those fed continuously at the lower allowance. Ewes offered 3 weeks at the higher allowance showed a 25% increase in ovulation rate irrespective of when in the 6 week period this was received. Thus a minimum carry over period of 3 weeks was obtained. A further 30% increase in ovulation rate was obtained when ewes were offered the higher allowance for the full 6 week period. The proportion in ovulation rate was obtained when ewes were offered the higher allowance for the full 6 week period. The proportion of ewes lambing multiples was lower for those receiving &lt3 weeks high level feeding than for those receiving at least 3 weeks (33.5% v 56.0%; P&lt0.001), but there was no additional response to feeding at the high level for 6 weeks.  aAnimal reproduction  aFeeding level  aOvulation  aRuminant nutrition  aSheep  aNutrição  aOvino  aReprodução  aFlushing  aSuplementacao  aTaxa de ovulacao1 aJAGUSCH, K. T.1 aFARQUHAR, P. A.  tProceedings of the New Zealand Society of Animal Productiongv. 43, p. 13-16, Jan. 1983.