Abstract
THE secretions of the cervix of the cow in different reproductive phases have been described by Woodman and Hammond1 and Hammond2. In oestrus, the mucus in the cervix and upper vagina is plentiful and fairly fluid, while in mid-cycle it is greatly diminished in amount and is more viscous. The characteristic stickiness of pregnant secretions has been proposed as a rough test for pregnancy (Marshall and Hammond3).
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References
Woodman, H. E., and Hammond, J., J. Agric. Sci., 15, 107 (1925).
Hammond, J., ‘Reproduction in the Cow” (Camb. Univ. Press, 1927).
Marshall, F. H. A., and Hammond, J., ‘Fertility and Animal Breeding”, Bull. Min. Agric. and Fish. No. 39 (1937).
Scott Blair, G. W., Koli. Z., 78, 19 (1937).
Szegvari, A., Z. Phys. Ctiem., 108, 175 (1924); Ostwald Wo. and Males, H., Roll. Z., 63, 305 (1934); ibid., 67, 219.
Erbring, H., Roll. Beih., 44, 171 (1936), etc.
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BLAIR, G., FOLLEY, S., COPPEN, F. et al. Rheological Properties of Bovine Cervical Secretions during the œstrous Cycle. Nature 147, 453–454 (1941). https://doi.org/10.1038/147453a0
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DOI: https://doi.org/10.1038/147453a0
