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Arch Anim Nutr

Title:		Effect of mineral source and mannan oligosaccharide supplements on zinc and copper digestibility in growing pigs
Author(s):		Lebel A; Matte JJ; Guay F;
Address:		"a Departement des sciences animals , Universite Laval Quebec , Quebec , Canada G1V 0A6"
Journal Title:		Arch Anim Nutr
Year:		2014
Volume:		20140902
Issue:		5
Page Number:		370 - 384
DOI:		10.1080/1745039X.2014.954357
ISSN/ISBN:		1477-2817 (Electronic) 1477-2817 (Linking)
Abstract:		"This study aimed to compare the effects of organic (proteinate) and inorganic (sulphate) copper (Cu) and zinc (Zn) supplements, in presence or absence of a mannan oligosaccharide (MOS) supplement, on mineral solubility and digestibility in pigs. Twenty-eight barrows (25 +/- 4 kg) assigned randomly to four treatment groups were fed a corn-wheat-soya bean meal diet with 10 mg/kg of Cu and 100 mg/kg of Zn supplied as organic or inorganic supplement, and supplemented or not with 0.1% MOS. After an adaptation period, total faeces and urine were collected for a period of 6-7 days. Pigs were then euthanatised and digesta from ileum and caecum were collected. Apparent digestibility was calculated in ileum and caecum using titanium dioxide. The organic mineral supplement improved total (faecal) digestibility and retained/ingested ratio of Cu (p < 0.05) while reducing apparent digestibility of Zn in the ileum (p < 0.05) without effect on total digestibility of Zn. Solubilities of Cu and Zn in liquid fraction of ileum and caecum were not affected by mineral sources. Although MOS supplement increased Cu solubility in the ileum (p < 0.05), it had no effect on digestibility of Zn and Cu in ileum, caecum and faeces, retained/ingested ratio of Zn and Cu, or pH and volatile fatty acid concentration in ileal and caecal digesta. In conclusion, organic mineral supplement improved total digestibility and retained/ingested ratio of Cu in pigs but this cannot be attributed to its solubility in ileal and caecal digesta. The MOS supplement did not interfere with digestibility or dietary utilisation of Zn and Cu in pigs fed above the Zn and Cu requirements"
Keywords:		"Animal Nutritional Physiological Phenomena Animals Animals, Newborn Copper Sulfate/administration & dosage/chemistry/*metabolism *Dietary Supplements Digestion Feces/chemistry Male Mannans/*administration & dosage Oligosaccharides/*administration & dosage;"
Notes:		"MedlineLebel, Alexandre Matte, J Jacques Guay, Frederic eng Randomized Controlled Trial Research Support, Non-U.S. Gov't England 2014/09/03 Arch Anim Nutr. 2014; 68(5):370-84. doi: 10.1080/1745039X.2014.954357. Epub 2014 Sep 2"