Marginal copper and iron supply of pigs
作者:
S. Hartmann,
K. Eder,
M. Kirchgessner,
期刊:
Archiv für Tierernaehrung
(Taylor Available online 1994)
卷期:
Volume 47,
issue 2
页码: 91-106
ISSN:0003-942X
年代: 1994
DOI:10.1080/17450399409381798
出版商: Taylor & Francis Group
关键词: Copper;Iron;Pig;Marginal supply;Tissue;Haematological parameters
数据来源: Taylor
摘要:
The objective of the present study was to investigate physiological effects of a marginal copper and iron supply on pigs. Therefore an experiment was conducted with 4 × 12 growing pigs of the crossbreed Pietrain × Deutsche Landrasse. The animals were fed for a period of 119 days with a diet poor of copper (1.5 mg Cu/kg diet) and/or poor of iron (35 mg Fe/kg diet). Control animals were supplied adequately with copper (4.8 mg Cu/kg diet) and iron (85 mg Fe/kg diet). The diet was given according to weight. After reaching an average weight of 102.6 ± 3.5 kg the animals were slaughtered. Due to the activity of the coerulplasmin and katalase enzyme and the haematological parameters, the supply of copper and iron could be classified as marginal. There was no interaction between copper deficiency and iron metabolism. The protein metabolism was unchanged. Low copper intake reduced the copper concentrations in serum, liver, muscle and backfat, and low iron intake reduced the iron concentration in serum, liver and muscle. Marginal copper and iron supply had no relevant effect on either food intake and growth performance or carcass characteristics and meat quality.
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