DOI:
10.1055/s-00034912
Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere
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References
O’Callghan D.
Physiology of seasonality in sheep: role of photoperiod and melatonin.
Proc. 1st European Conf. On Progress in Embryo Techn. And Genetic Engineering in Cattle and Sheep Breeding.
Kraków: 1994: 183-90.
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