Photoperiodism in the ewe: 1. The effect of long supplemented daylengths on the breeding activity of pregnant and non-pregnant Teeswater-Clun ewes.
| Autor: | Ducker, M. J., Thwaites, C. J., Bowman, J. C. |
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| Zdroj: | Animal Production; 02/01/1970, Vol. 12 Issue 1, p107-113, 7p |
| Databáze: | Complementary Index |
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