The distribution of potassium and sodium concentrations in the erythrocytes of some breeds of cattle
1994
Arranz, J.J. | BayóN, Y. | Primitivo, F.
SUMMARY: The distribution of erythrocyte potassium and sodium concentrations was studied in Sayaguesa (n = 150), Brown Swiss (n = 163) and two populations of Avileña-Negra Ibérica cattle (n = 141 and 141 respectively). No polymorphism was detected for red-cell cation content in any of the breeds investigated. Mean values of potassium concentrations varied between 21.42 and 24.92 mmol/l red cells, those of sodium contents ranging from 77.50-93.44 mmol/1. The cattle studied can thus be considered as belonging to the ‘low potassium' (LK) type. Significant differences were found both in potassium and sodium concentrations between one of the populations of Avileña-Negra Ibérica and the other groups examined. Mean values of sodium levels in Brown Swiss were also significantly different from the other groups.
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