The effect of iron glycine chelate on tissue mineral levels, fecal mineral concentration, and liver antioxidant enzyme activity in weanling pigs

Feng, Jie; Ma, Wenqiang; Xu, Zhentian; He, Junna; Wang, Y.Z.; Liu, J.X.

doi:10.1016/j.anifeedsci.2008.07.004

Cited by 38 publications

(38 citation statements)

References 31 publications

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“…Other studies of Feng et al. () revealed that additive Fe–Gly increased the concentration of Fe in the hearts, livers, kidneys and spleens. A positive influence on the health of animals is accompanied by improved production performance (Fuchs et al., , ).…”

Section: Introductionmentioning

confidence: 78%

“…Feng et al (2007), in their study of piglets, observed that along with increasing the amount of Fe supplied as Fe-Gly, the level of haemoglobin, the haematocrit and blood Fe increased. Other studies of Feng et al (2009) revealed that additive Fe-Gly increased the concentration of Fe in the hearts, livers, kidneys and spleens. A positive influence on the health of animals is accompanied by improved production performance (Fuchs et al, 2008(Fuchs et al, , 2009).…”

Section: Introductionmentioning

confidence: 92%

“…In searching for new solutions to achieve measurable benefits such as improved health and production performance, scientists became interested in glycine chelates (Bovell-Benjamin et al, 2000;Kegley et al, 2002;Feng et al, 2007Feng et al, , 2009. Recent studies (Pineda and Ashmead, 2001;Ettle et al, 2008) suggest that glycine-chelated iron (Fe-Gly) is more easily absorbed and utilized than iron from other amino acid chelates.…”

Section: Introductionmentioning

confidence: 99%

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Effects of iron–glycine chelate on growth, carcass characteristic, liver mineral concentrations and haematological and biochemical blood parameters in broilers

Kwiecień

Samolińska

Bujanowicz-Haraś

2015

Animal Physiology Nutrition

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Studies were carried out to determine the effect of additive iron-glycine chelate on the production performance, slaughter yield, mineral deposition in the liver and the metabolic blood panel in broiler chickens. A total of 250 one-day-old Ross 308 chicks were allotted into five groups with five replicates of 10 birds each. Diets were supplemented with the organic form iron (Fe-Gly at the rate of 25%, 50% or 100% of the total requirements of the elements) and inorganic Fe (FeSO4 at the rate of 50% or 100%). In the experiment, iron was added to the premix (containing no Fe) in an amount of 40 or 20 mg per kg of basal diet, in groups I and II, in the form of FeSO4 , and in an amount of 40, 20 or 10 mg per kg of basal diet, in groups III, IV and V, in the form of Fe-Gly. The study covering the period from the first to the 42nd day of breeding revealed that the production performance and slaughter yield were not dependent on the form and amount of added Fe. In the experimental groups with the addition of Fe-Gly of 20 or 10 mg/kg, there were no deaths of chickens during the whole fattening period. As a result, introducing an organic form of iron covering 50% and 25% of the birds' requirement increased the effectiveness of chicken fattening (European Efficiency Index) (p < 0.01). An organic Fe compound (40, 20 or 10 mg/kg) added to mixtures contributed to significant changes in the level of biochemical and haematological indicators in blood. The study demonstrated that an addition of Fe-Gly to mixtures for broilers can be fully effective in terms of production and health performance even if the suggested requirement for this element is 50% or 25% covered.

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Section: Introductionmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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Effects of iron–glycine chelate on growth, carcass characteristic, liver mineral concentrations and haematological and biochemical blood parameters in broilers

Kwiecień

Samolińska

Bujanowicz-Haraś

2015

Animal Physiology Nutrition

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“…(2008), were as +34.5, +18.4 and +34.6 %, in breast, thigh and wing muscle, respectively. The same lack of consistent results was observed for iron concentrations in the liver and kidney of pigs (Feng et al, 2009;Bertechini et al, 2012) and chickens for fattening (Seo et al, 2008;Shinde et al, 2011): the greatest mean increases were +22 % and +31.9 % in broiler muscle and liver, respectively. Apparently no studies were available as regards the effect of organic iron supplementation on the iron content of muscle and offals from ruminants.…”

Section: Iron Deposition In Tissues and Products Of Animal Originmentioning

confidence: 72%

Scientific opinion on the safety and efficacy of iron compounds (E1) as feed additives for all species: iron chelate of amino acids, hydrate, based on a dossier submitted by Zinpro Animal Nutrition Inc.

Feed¹

2013

EFS2

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The use of iron chelate of amino acids, hydrate, as source of iron is considered safe for all animal species/categories when used up to the currently authorised maximum content of total iron in complete feed, with the exception of bovines and poultry for which the maximum tolerated level is 450 mg/kg complete feed, and pets, for which the maximum tolerated level is 600 mg/kg complete feed. The FEEDAP Panel is not in the position to derive a maximum safe iron concentration in feed for horses or fish. Consumption surveys include iron-containing foodstuffs of animal origin. Since the supplementation of animal feed with iron-containing compounds has not essentially changed during the last decades, it is reasonable to assume that the iron levels in food of animal origin used in exposure scenarios originated from animals fed iron-supplemented diets. Since iron chelate of amino acids, hydrate, will be used as a substitute for other iron compounds, its use in animal nutrition would not modify consumer exposure to iron. The additive should be considered as a skin, eye and respiratory irritant and, owing to its residual peptide component, as a skin/respiratory sensitiser. Considering the high background concentration of iron in soil and water, the supplementation of feed with iron chelate of amino acids, hydrate, is not expected to pose an environmental risk. Iron chelate of amino acids, hydrate, is an effective source of iron for all animal species and categories. The FEEDAP Panel recommends that the maximum iron contents in complete feed be reduced as follows: bovines and poultry, 450 mg Fe/kg; and pets, 600 mg Fe/kg. © European Food Safety Authority, 2013 KEY WORDSnutritional additive, compounds of trace elements, iron, ‗iron chelate of amino acids, hydrate', safety, environment, efficacy

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“…It has been demonstrated that the bioavailability of this element can be increased as compared to its inorganic forms by applying it in the form of chelates, amino acid compounds or protein compounds (Langini et al, 1988;Henry and Miller, 1995;Spears, 1999;Yu et al, 2000). According to some authors, the use of such forms of iron can significantly raise production rates in dairy cattle and pigs (Vieira, 2008;Feng et al, 2007;Feng et al, 2009). Similarly, the use of compound poultry feed enriched with iron chelates, alone or in combination with methionine, affects the content of this component in hen eggs and poultry meat (Hallberg et al, 1979;Hill et al, 1983;Park et al, 2004;Bao et al, 2007;Seo et al, 2008).…”

Section: Introductionmentioning

confidence: 95%

Effects of feed supplementation with glycine chelate and iron sulfate on selected parameters of cell-mediated immune response in broiler chickens

Jarosz

Kwiecień

Marek

et al. 2016

Research in Veterinary Science

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The effect of iron glycine chelate on tissue mineral levels, fecal mineral concentration, and liver antioxidant enzyme activity in weanling pigs

Cited by 38 publications

References 31 publications

Effects of iron–glycine chelate on growth, carcass characteristic, liver mineral concentrations and haematological and biochemical blood parameters in broilers

Effects of iron–glycine chelate on growth, carcass characteristic, liver mineral concentrations and haematological and biochemical blood parameters in broilers

Scientific opinion on the safety and efficacy of iron compounds (E1) as feed additives for all species: iron chelate of amino acids, hydrate, based on a dossier submitted by Zinpro Animal Nutrition Inc.

Effects of feed supplementation with glycine chelate and iron sulfate on selected parameters of cell-mediated immune response in broiler chickens

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