Seasonal variation in mineral profile during oestrous cycle in Barki ewes

Ezzo, O.H.; Shalash, M.R.; Hassan, S.G.; Afifey, M.M.; Younes, A.A.

Egyptian Journal of Veterinary Science( 1992); 27: 37-46


Accession: 002488133

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Blood samples were collected from 27 Barki ewes on 12 occasions during oestrus, pro-oestrus, metoestrus and di-oestrus. Stage of oestrus had no significant effect on the blood concentrations of calcium, inorganic phosphorus, iron, copper or zinc or the calcium:phosphorus ratio, but all the above concentrations (except that of iron) were significantly affected by season (higher in winter than in summer).