PMID: 8582853Sep 1, 1995Paper

Evaluation of copper sulfate and a copper lysine complex as growth promoters for weanling swine

Journal of Animal Science
G A ApgarD R Notter

Abstract

Two 5-wk trials using 176 weanling pigs (average initial weight of 8.3 kg and age of 31 d) were conducted to examine the effect of feeding varying levels of dietary Cu from copper sulfate (CuSO4) or a copper lysine complex (CuLys) on performance, mineral stores, serum copper, and serum mitogenic activity. Dietary treatments were 0 (15 mg/kg of Cu in basal diet), 100, 150, or 200 mg/kg of supplemental Cu from CuSO4 or CuLys. Average daily gain and ADFI increased linearly (P < .01) with increasing dietary levels of Cu during wk 1 to 2, 3 to 5, and 1 to 5, with no difference (P > .10) between the Cu sources. Overall gain:feed ratios were not consistently affected by Cu source. Dietary Cu linearly increased liver, kidney (P < .001), and brain (P < .05) concentrations of Cu. In the liver, the linear response to supplemental Cu differed between Cu sources (P < .001); pigs fed 200 mg/kg of Cu from CuLys had the highest concentration of Cu. Serum Cu concentrations increased linearly during wk 1 to 2 (P < .01), 3 to 5, and 1 to 5 (P < .001), with no difference (P > .10) between sources. Serum mitogenic activity increased linearly during wk 1 to 2 and 1 to 5 (P < .05). Growth performance was linearly improved as the dietary level of Cu i...Continue Reading

Citations

Jan 16, 2007·Journal of Animal Physiology and Animal Nutrition·D CarlsonH D Poulsen
Apr 12, 2020·Journal of Animal Science·Sandra Villagómez-EstradaDavid Solà-Oriol
Jul 23, 2014·Asian-Australasian Journal of Animal Sciences·J ZhaoR J Harrell
Mar 5, 2016·Journal of Animal Science and Biotechnology·Junmei ZhaoMercedes Vazquez-Añon
Aug 23, 2012·Biological Trace Element Research·Wenyan YangGuowen Liu
Sep 16, 2019·Computers in Biology and Medicine·Jai Woo LeeJiang Gui
Mar 6, 2008·Journal of Trace Elements in Medicine and Biology : Organ of the Society for Minerals and Trace Elements (GMS)·Jiakui LiZhe Wang
Apr 24, 2010·Journal of Trace Elements in Medicine and Biology : Organ of the Society for Minerals and Trace Elements (GMS)·D T PalK T Sampath

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