Molecular Nutrition

Effects of Dietary Ferrous Glycine Sulfate on Growth Performance, Iron Apparent Digestibility and Serum Iron Related Indices of Weaned Piglets

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  • 1. College of Animal Science, South China Agricultural University, Guangzhou 510642, China;
    2. SCAU-Unioil Feeding Oil & Fat Research Centre, College of Animal Science, South China Agricultural University, Guangzhou 510642, China

Received date: 2016-11-04

  Online published: 2017-06-07

Abstract

This experiment was conducted to investigate the effects of dietary ferrous glycine sulfate (Fe-Gly) on growth performance, iron apparent digestibility and serum iron related indices of weaned piglets. Twelve (28±1) day-old Duroc×Landrace×Large Yorkshire weaned piglets were assigned to 2 groups with 6 replicates each and 1 pig in each replicate according body weight and health condition, and every pig was individually raised in a digestive metabolic cage. There were two stages in this experiment, and in period 1, all pigs were fed an iron-deficient basal diet for 10 days until iron-deficient anemia was almost induced, while in period 2, pigs in control group were fed the iron-deficient basal diet supplemented with 100 mg/kg ferrous sulfate (as iron content), and in experimental group were fed the iron-deficient basal diet supplemented with 100 mg/kg Fe-Gly (as iron content) for 10 days. The results showed that compared with the ferrous sulfate:dietary Fe-Gly tended to decrease the ratio of feed to gain by 4.57% (P<0.10), but had no significant effects on average daily feed intake and average daily gain (P>0.05) of piglets; dietary Fe-Gly significantly decreased iron excretion in feces and total iron excretion by 23.11% and 22.09% (P<0.05), respectively; dietary Fe-Gly extremely significantly increased the apparent digestibility and metabolic rate of iron by 13.34% and 22.42% (P<0.01), respectively; meanwhile dietary Fe-Gly significantly increased iron saturation and blood iron content. In conclusion, Fe-Gly can increase growth performance of weaned piglets, increase blood iron content, improve iron metabolic status, and reduce iron excretion. Thus, Fe-Gly is a good green efficient complement iron agent.

Cite this article

ZHANG Wenfei, LIAO Zhichao, GUAN Wutai, WANG Chaoxian, CHEN Fang, DENG Yuelin, ZHANG Shihai . Effects of Dietary Ferrous Glycine Sulfate on Growth Performance, Iron Apparent Digestibility and Serum Iron Related Indices of Weaned Piglets[J]. Chinese Journal of Animal Nutrition, 2017 , 29(6) : 2071 -2077 . DOI: 10.3969/j.issn.1006-267x.2017.06.029

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