Effects of Iron and Zinc Complex Amino Acid Chelate on Absorption Metabolism of Iron and Zinc of Finishing Pigs

ZHAN Kang, ZHAN Jinshun, ZHAO Guoqi, HUO Yongjiu

doi:10.3969/j.issn.1006-267x.2014.08.037

Chinese Journal of Animal Nutrition >

2014 , Vol. 26 >Issue 8: 2320 - 2326

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.08.037

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Effects of Iron and Zinc Complex Amino Acid Chelate on Absorption Metabolism of Iron and Zinc of Finishing Pigs

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College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China

Received date: 2014-02-19

Online published: 2014-08-13

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Abstract

To study the effects of iron and zinc complex amino acid chelate on blood biochemical indexes, immunoglobulin content in serum, iron and zinc contents in hair and apparent digestibility of iron and zinc of finishing pigs,thirty-six finishing pigs (Duroc×Landrace×Yorkshire) with an average initial body weight of (55.63±1.33) kg were selected and randomly allotted to three groups. There were three replicates per group and four pigs in each replicate. Pigs of the control group fed a basal diet with 100 mg/kg iron and zinc (offered by ferrous sulfate and zinc sulfate), those of experimental group 1 fed the basal diet with 50 mg/kg iron and zinc (offered by ferrous sulfate and zinc sulfate)+50 mg/kg iron and zinc (offered by iron and zinc complex amino acid chelate), and those of experimental group 2 fed the basal diet with 100 mg/kg iron and zinc (offered by iron and zinc complex amino acid chelate). The results showed as follows: 1) no significant differences were observed in the number of red blood cells, hematocrit, immunoglobulin A and immunoglobulin M contents in serum among the three groups (P>0.05). 2) The hemoglobin and immunoglobulin G (IgG) contents of experimental group 2 were significantly higher than those of the control group (P<0.05). 3) Iron content in hair of experimental group 2 was significantly higher than that of the control group (P<0.05); zinc content in hair of experimental group 2 was significantly higher than that of experimental group 1 and the control group (P<0.05). 4) Iron content in feces of experimental group 2 was significantly lower than that of the control group (P<0.05); zinc content in feces of experimental group 2 and experimental group 1 was significantly lower than that of the control group (P<0.05). There was no significant difference in apparent digestibility of iron and zinc among the three groups (P>0.05). It is concluded that iron and zinc complex amino acid chelate increase the contents of hemoglobin, IgG in serum and iron, zinc in hair, and decrease iron and zinc contents in feces.

Key words： finishing pig; iron; zinc; immune; hair

Cite this article

ZHAN Kang, ZHAN Jinshun, ZHAO Guoqi, HUO Yongjiu . Effects of Iron and Zinc Complex Amino Acid Chelate on Absorption Metabolism of Iron and Zinc of Finishing Pigs[J]. Chinese Journal of Animal Nutrition, 2014 , 26(8) : 2320 -2326 . DOI: 10.3969/j.issn.1006-267x.2014.08.037

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