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STUDIES ON POTASSIUM-LYSINE INTERRELATIONSHIPS IN BROILER CHICKS 2. EFFECT OF POTASSIUM-LYSINE INTERRELATIONSHIPS ON BLOOD PARAMETER, SERUM AND BONE COMPOSITION

  • Shin, H.Y. ;
  • Han, I.K. ;
  • Choi, Y.J.
  • Received : 1991.03.25
  • Accepted : 1991.12.23
  • Published : 1992.03.01

Abstract

To determine the effect of dietary potassium and lysine levels on blood parameters, serum and bone composition, 360 male broiler chicks of 3 days of age were used in a completely randomized $3{\times}3$ factorial experiment for 6 weeks. Experimental diets contained three supplemented levels of dietary potassium (0.3, 0.6 and 1.2%) and three supplemented levels of dietary lysine (0.6, 1.2 and 2.4%). Dietary levels of potassium and lysine did not influence blood pH, $pCO_2$, $pO_2$, $HCO_3$ and total $CO_2$ and interaction between potassium and lysine was not shown (p > 0.05). Serum lysine and arginine contents were significantly different by the levels of dietary lysine (p < 0.05). Lysine-arginine antagonism was observed in high lysine diet. But increasing dietary potassium did not alleviated the lysine-arginine antagonism. Serum sodium, potassium and chloride were not affected by dietary potassium and lysine levels (p > 0.05). Femur weight, length and P contents were affected by the levels of dietary lysine (p < 0.01). But no difference was observed in femur ash and Ca contents (p > 0.05). Interaction between potassium and lysine was shown in ash and P contents (p < 0.01).

Keywords

Potassium;Lysine;Interrelationship;Broiler