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Effect of Nickel as the Chloride and the Carbonate on Palatability of Cattle Feed¹

Department of Dairy Science, Clemson University, Clemson, South Carolina 29631
and Dairy Science Department, University of Georgia, Athens 30601

ABSTRACT

A preliminary experiment with dairy calves ascertained the effects of supplemental nickel on voluntary feed consumption and animal health. Daily nickel intake of 500 mg as either nickelous chloride or nickelous carbonate administered in gelatin capsule greatly reduced voluntary feed intake and was highly toxic to 2 calves weighing 43 kg. However, the nickelous chloride was much more toxic than the carbonate.

In a cafeteria experiment, diets containing nickel were offered free choice along with basal ration to 12 seven-month-old dairy heifers. Either 100 ppm nickel as the chloride or 500 ppm as the carbonate definitely reduced palatability but not at one-half these amounts. A linear depression (P < 0.01) in palatability was observed as nickel in the diet increased from 50 to 100 to 200 ppm as nickelous chloride had 5 times as much effect on palatability of feed as did carbonate.

¹ Technical contribution no. 839, South Carolina Agricultural Experiment Station. Published by permission of the Director. University of Georgia, College of Agricultural Experiment Stations, Journal paper no. 740, College Station, Athens.

² Department of Dairy Science, Clemson University.

³ Dairy Science Department, The University of Georgia.