Genotype-pasture interaction in the fertility of Romney Marsh
ewes
T.S. Ch'ang
Massey University College, Palmerston North
E-Mail:
Proceedings of the New Zealand Society of Animal Production.
1963, 23: 100-106
A comparison was made of reproductive performance of Romney
Marsh ewes grazed on an oestrogenic red clover sward and on a control
pasture. Ewes grazed on oestrogenic red clover were lower in fertility
than ewes grazed on control pasture. Not in the control ewes but among
the red clover ewes but among the red clover ewes there was a
differential reduction in fertility according to whether the ewes were
themselves born as singles or as twins. The results of present work are
discussed with reference to the planning of experiments for the study of
reproduction in the ewe.
Keywords: NZSAPAB;
Last Updated 24-08-2000
