Letter | Published:

Hormonal Interrelations in Beef Cows with Induced Multiple Ovulations


ALTHOUGH there is wide interest in hormonal induction of multiple births in cattle1, it is not possible to induce two or three ovulations reliably. Further advances will require a better understanding of the patterns of hormone concentrations during follicle growth. This report describes peripheral plasma concentrations of oestrogens, progesterone and luteinizing homone (LH) during the 96 h before induced oestrus and multiple ovulations.

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  1. 1

    Lamond, D. R., Austral. J. Agric. Res., 21, 153 (1970).

  2. 2

    Henricks, D. M., Niswender, G. D., and Dickey, J. F., Biol. Reprod., 2, 346 (1970).

  3. 3

    Niswender, G. D., Reichert, L. E., Midgley, A. R., and Nalbandov, A. V., Endocrinology, 84, 1166 (1969).

  4. 4

    Scarramuzzi, R. J., Caldwell, B. V., and Moor, R. M., Biol. Reprod., 3, 110 (1970).

  5. 5

    Hancock, K. W., Stitch, S. R., Oakey, R. E., Scott, J. S., Levell, M. J., and Ellis, F. R., Lancet, ii, 482 (1970).

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