ORIGINAL PAPER
Two different forms and levels of CuSO4 in piglet feeding: liver, plasma and faeces copper status
G. Pastorelli 1  
,   R. Rossi 1,   E. Zanardi 2,   S. Ghidini 2,   C. Corino 1
 
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1
Università degli Studi di Milano, Department of Veterinary Science for Health, Animal Production and Food Safety, Via Celoria 10, 20133 Milan, Italy
2
Università degli Studi di Parma, Department of Food Science, Parco Area delle Scienze 95/A, 45125 Parma, Italy
CORRESPONDING AUTHOR
G. Pastorelli   

Università degli Studi di Milano, Department of Veterinary Science for Health, Animal Production and Food Safety, Via Celoria 10, 20133 Milan, Italy
Publication date: 2014-03-10
 
J. Anim. Feed Sci. 2014;23(1):52–57
 
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ABSTRACT
A 35-d experiment involving 150 crossbred pigs weaned at 26 ± 2 d of age was conducted to evaluate the effect of different forms of CuSO4 on the copper content of liver, plasma and faeces. Piglets were randomly allocated to five dietary groups with increasing supplementation of protected and unprotected Cu in the diet as follows: 0 ppm (CON), 75 ppm Cu unprotected (Cu 75UNP), 75 ppm protected (Cu 75P), 150 ppm unprotected (Cu 150UNP) and 150 ppm protected (Cu 150P). After 18 days of the experimental trial, 30 piglets were sacrificed to determine liver and plasma copper status. Faecal samples were taken for determination of copper content at the end of the whole experimental trial on the 35th day. The highest liver Cu concentration (P < 0.001) was found in Cu 150UNP compared with all other groups. The plasma Cu concentration showed a significant (P < 0.05) increase in the Cu 150P vs CON group. Groups Cu 150, either in the protected or unprotected form, showed a higher content in faeces compared with the CON and Cu 75 groups. The protection did not negatively influence bioavailability at Cu 75 ppm integration.
 
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Chu Cai Peng, Jia You Yan, Bin Dong, Lin Zhu, Yao Yao Tian, Li Min Gong
Asian-Australasian Journal of Animal Sciences
 
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Copper sulphate forms in piglet diets: Microbiota, intestinal morphology and enteric nervous system glial cells
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Effects of Different Levels and Forms of Chelated Metal Proteinates on Productive Performance and Metabolic Processes in Fattening Young Pigs
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ISSN:1230-1388