01485naa a2200325 a 450000100080000000500110000800800410001910000160006024501120007626000090018852005980019765000180079565000090081365000140082265000170083665000290085365000100088265000100089265000170090265000150091965000120093465000100094665000150095665000170097165300230098865300300101165300190104165300280106077300710108815221192025-06-12       1976    bl uuuu     u00u1 u    #d1 aKING, C. F.  aSeasonal changes in the ovulatory activity of ewes slaughtered in northern Tasmania.h[electronic resource]  c1976  aAbstract: The reproductive tract was examined in 17000 ewes (largely Polwarth and Corriedale) slaughtered for meat in 1967-70. A clearly defined seasonal pattern of ovulatory activity was evident, with autumn peaks in both the proportion of ewes ovulating and the incidence of multiple ovulation. A further peak in multiple ovulation occurred-in the relatively few ewes which cycled in the spring. Joining in April/May is therefore recommended for optimal fertility in wool flocks and this recommendation is discussed in relation to ewe nutritional requirements during pregnancy and lactation.  aEstrous cycle  aEwes  aOvulation  aReproduction  aReproductive performance  aSheep  aCabra  aCiclo Estral  aFisiologia  aOvário  aOvino  aOvulação  aReprodução  aAtividade ovariana  aComportamento reprodutivo  aOestrous cycle  aOestrus synchronization  tProceedings Australian Animal Productiongv. 11, p. 121-124, 1976.