REVIEW PAPER
Zinc and copper as feed additives, growth factors or
unwanted environmental factors
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Department for Animal Nutrition and Physiology,
Danish Institute of Agricultural Sciences, Research Centre Foulum,
P.O. Box 50, DK-8830 Tjele, Denmark
Publication date: 1998-08-22
J. Anim. Feed Sci. 1998;7(Suppl. 1):135-142
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ABSTRACT
Zinc (Zn) and copper (Cu) are essential nutrients. However, the functions and interplay between
these two minerals remain to be fully understood, especially in the feeding of piglets, where Cu is
used as a "growth promoter". The process of weaning imposes a lot of changes in the dietary conditions which may contribute to the weaning problems. Besides being heavy metals, Cu and Zn are
required in the functioning of the young pig. Thus, further studies of the basic functions and interplay between Cu and Zn in relation to environmental aspects are needed.
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