Abstract
Effects of Increasing Copper from Tri-basic Copper Chloride or a Copper-Amino Acid Complex on Growth Performance of Nursery Pigs
Highlights
The NRC (20124) reports weanling pigs have a nutritional Cu requirement of 6 ppm
Pens of pigs were allotted by BW to 1 of 7 dietary treatments arranged as a 2 × 3 factorial plus a control diet, with main effects of Cu source
There were no effects of Cu source on growth performance
Summary
A total of 665 pigs [Group 1; 350 barrows (DNA 200 × 400; initially 14.1 lb)] and [Group 2; 315 barrows and gilts (DNA 241 × 600; initially 11.4 lb)] were used to determine the effects of added Cu source and level on nursery pig performance. Pens of pigs were allotted by BW to 1 of 7 dietary treatments arranged as a 2 × 3 factorial plus a control diet, with main effects of Cu source (IntelliBond-C; Micronutrients, Indianapolis, IN or Mintrex-Cu; Novus, St. Charles, MO) and Cu level (75, 150, or 225 ppm). The increase in ADG with no effect on ADFI resulted in a tendency for improved F/G (linear, P = 0.091) with increasing added Cu in the diet. Because the growth effects were linear, it is unknown from our study if increasing added Cu beyond 225 ppm would further improve growth. Kansas State University Agricultural Experiment Station and Cooperative Extension Service
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