101.

Cowan TKJ, Phillips GD, Bragg DB. Effect of dietary EDTA on the ability of chicks to tolerate sodium chloride in the water. Canadian J Animal Sci. 1971; 51(3):633-637. (NA42) [Broiler chicks were given diets with no ethylenediamine tetra-acetic acid (EDTA) or 0.1, 0.2 or 0.4%, and drinking water with 6000 mg salt/kg. A control group had tap water and the diet without EDTA. Addition of 6000 NaCl/kg to the drinking water had no effect on weight gain or feed conversion. Similarly, the inclusion of up to 0.4% EDTA in the feed had no adverse effect on weight gain. Packed cell volume and plasma Na, Cl and Ca showed no changes. Water consumption almost doubled in chicks given high-salt water. Of the 2 groups of chicks not given EDTA there was significantly (P < 0.10) higher mortality in the group given salt water. The mortality in the former was also significantly higher than for the group given 0.2% EDTA with salt water. The chicks given 0.4% EDTA had significantly higher mortality than control chicks or those given salt water and 0.1% or 0.2% EDTA. Examination post mortem indicated that ascites and widespread oedema were the causes of death in chicks that drank salt water on diets with no EDTA or 0.4%. Deaths of chicks on treatments that gave low mortality were not attributable to ascites.]

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