The iodine supply of humans depending on site, food offer and water supply

Anke, M.; Groppel, B.; Müller, Mathis M.; Scholz, Elke; Kramer, Kristina

doi:10.1007/bf00322305

Cited by 23 publications

(19 citation statements)

References 2 publications

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“…It is to suppose that the manipulation of biomass in the course of its drying, or hay storage, can cause that a part of plant leaves with higher iodine content is rubbed off. Tables 2-5 show the influence of geological bedrock, soil type and soil exploitation (Anke et al, 1995;Oliveriusová, 1997), and of the season of harvest and/ or grazing of pasture herbage on iodine content in feed dry ma�er and its variability. Yearly differences in iodine content (Figures 1, 2 and 3) suggest climatic and other influences that contribute to the high variability of iodine in bulk feeds.…”

Section: Discussionmentioning

confidence: 99%

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Iodine content in bulk feeds in western and southern bohemia

Trávníček¹,

Kroupová²,

Šoch³

2004

CZECH J ANIM SCI

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ABSTRACT:In 1997-2001 a total of 304 samples of bulk feeds were analysed. Iodine was determined spectrophotometrically by Sandell and Kolthoff's method . The highest content of iodine was determined in grass silage (213.3 ± 169.3 µg/kg DM). The lowest concentration was measured in maize silage (110.0 ± 97.2) and hay (112.1 ± 93.9). Pasture herbage contained on average 148.9 ± 105.1. Feeds originating from foothill areas of western Bohemia (geological bedrock built of crystalline schists and igneous intrusions of earlier granite) contained a higher amount of iodine than feeds from foothill areas of southern Bohemia (geological bedrock in which crystalline schists prevail). The largest difference in iodine content in relation to feed origin was found out in hay: western Bohemia 168.0, southern Bohemia 78.0 (P < 0.01). From May to July pasture herbage contained 101.3 ± 73.6 and from August to October 214.5 ± 107.3 µg/kg DM (P < 0.01).

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Section: Discussionmentioning

confidence: 99%

“…Podzols and sandy soils have lower contents of iodine than Chernozems. Soils with intensive cultivation and rich in humus contain a higher amount of iodine (Anke et al, 1995). Concentrations lower than 4 mg I/kg are considered as deficient (McGrath et al, 1990).…”

mentioning

confidence: 99%

Iodine content in bulk feeds in western and southern bohemia

Trávníček¹,

Kroupová²,

Šoch³

2004

CZECH J ANIM SCI

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“…Afghanistan is located in the continental interior; consequently, any marine iodine circulating in the atmosphere is unlikely to reach the study sites in Greater Kabul and Nangarhar province. The recycling of iodine in a landlocked country such as Afghanistan is heavily inXuenced by the vegetative recycling processes as well as the soil-plant to atmosphere relationship (Anke et al 1995;Aston and Brazier 1979;Johnson 2003a). Soils in Afghanistan tend to be sandy and low in organic material, thereby limiting the ability to trap and retain iodine.…”

Section: Introductionmentioning

confidence: 99%

A pilot study on iodine in soils of Greater Kabul and Nangarhar provinces of Afghanistan

Watts

Mitchell

2008

Environ Geochem Health

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A robust and rapid methodology for the determination of iodine by inductively coupled plasma mass spectrometry in environmental samples is presented. Data were initially obtained for the validation of the analytical measurements, using 17 commercially available soil reference materials. The methodology was then tested on soil and water samples collected in Afghanistan where iodine deficiency and its effects are reportedly prevalent. Sample collections were conducted in Greater Kabul; the iodine in agricultural soils was determined to be in the range of 1.6-4.2 mg/kg and that in water drawn for drinking and irrigation was found to range from 9.9 to 22.7 microg/L. Samples were also collected in a second region, Nangarhar province, which is located to the east of Kabul, where goitres in the local population had been reported. The iodine content in soils and water at this location was 0.5-1.9 mg/kg and 5.4-9.4 microg/L, respectively. The organic content of soils in Kabul was found to be in the range of 1.9-4.2%; in Nangarhar, organic content ranged from 1.7 to 4.5%. All of the Afghan soils were slightly alkaline at pH 7.6-8.2.

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“…The iodine content of plants (i.e., forage) is mainly dependent on the overall environmental availability of iodine [11,12,40], but differences were detected between various plant tissues and between plant species [41][42][43]. In addition, Ceacero et al [44] suggested that deer were able to modulate mineral intake to meet requirements, and that on the other hand, relative ID can occur if goitrogenic compounds were presented in the food [13,45].…”

Section: Discussionmentioning

confidence: 98%

“…Iodine uptake through food and water [10] depends directly on the availability of iodine in the environment, especially in the soil [11,12]. The iodine concentration of soil and water is reflected in plants and in the food chain [13]; thus, low environmental iodine levels cause ID in animals [14] and humans [15].…”

Section: Introductionmentioning

confidence: 99%

Iodine Distribution in the Environment as a Limiting Factor for Roe Deer Antler Development

Lehoczki

Erdélyi

Sonkoly

et al. 2010

Biol Trace Elem Res

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The iodine-containing hormones produced by the thyroid gland play a role in the complex neuro-hormonal regulation of antler development. The proper function of the thyroid depends on the adequate iodine supply of the organism, which is directly related to the iodine content of food and drinking water. The purpose of this study was to explore the connection between the iodine content of the water base, which has a strong correlation with the iodine concentration of environmental components available to animals, and the antler weight of roe deer (Capreolus capreolus) shot in Hungarian hunting areas. Using a general linear model, controlling for the collective effects of other environmental factors (deer population density, harvest rate, land use, and soil fertility information), the iodine content of the water base explained 51.4% of the total variance of antler weights. The results suggest that antler weights increase with increasing iodine concentration regardless of other factors; thus, the environmental iodine distribution can be a limiting factor suppressing roe deer performance assessed here as antler weight. Further experimental studies of controlled iodine uptake are needed to define the exact physiological iodine requirements of roe deer bucks.

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The iodine supply of humans depending on site, food offer and water supply

Cited by 23 publications

References 2 publications

Iodine content in bulk feeds in western and southern bohemia

Iodine content in bulk feeds in western and southern bohemia

A pilot study on iodine in soils of Greater Kabul and Nangarhar provinces of Afghanistan

Iodine Distribution in the Environment as a Limiting Factor for Roe Deer Antler Development

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