A Comparison of Cadmium Concentrations in Tissues of Different Categories of Cattle

Pechová, Alena; Illek, J.; Pavlata, L.; Šindelář, Miroslav; Horký, Drahomír

doi:10.2754/avb199867020103

Cited by 6 publications

(8 citation statements)

References 7 publications

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“…The increase in Cd concentration in cow kidney is most probably connected with the age of animals as documented e.g. by Pechová et al (1998) who confirmed the highly significant relation between the age of cows and Cd content in kidney. Unfortunately, data describing the mean age of cows slaughtered in the Czech Republic are not fully available for the entire examined period, but it is apparent that it was growing with time up to about 72 months.…”

Section: Discussionsupporting

confidence: 52%

Cattle tissues as a source of cadmium for consumers

et al. 2015

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The aim of this study was to re-evaluate the analytical results and time trends of the content of cadmium in muscle, liver, and kidney samples of young bovine animals and cows slaughtered in the Czech Republic during the years 1993-2010, and to estimate the total dietary exposure for the entire population aged 4-90 years and specifically, for children at the age of four to six years. Analyses showed that the arithmetic means of cadmium concentration in cow kidney and liver are higher than in young bovine (P < 0.0001), but not in muscle (P = 0.227). The mean cadmium concentration in cow kidney (0.595 mg·kg -1 ) was twice as high as in young bovine kidney (0.285 mg·kg ). The evaluation of time trends showed increasing concentrations of cadmium for cow (increasing slaughtering age) and young bovine kidney and decreasing concentrations for cow and young bovine muscle, but no significant change for liver. The estimated Cd burden of the entire population is worthy of attention (10% were over the tolerable dose of 2.5 μg·kg -1 body weight and week). For more than 50% of four to six-year-old children the burden exceeded the tolerable weekly intake. The contribution of food belonging to the group of meat and meat products, including cattle tissues, to usual cadmium exposure is only 5%. Nevertheless, the food safety recommendation is not to consume cow kidney as food.

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Section: Discussionsupporting

confidence: 52%

Cattle tissues as a source of cadmium for consumers

et al. 2015

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“…The reported average liver Cd concentrations varies from 1.5 to 5.8 times those found in the present study. [39][40][41]50,[52][53][54][56][57][58][59] The Cd levels reported in the literature for muscle are low but the means are 2-280 times higher than in our study. [39][40][41]50,[52][53][54][56][57][58][59] For cows from noncontaminated areas and of similar age as in the present study the kidney Cd levels are similar.…”

Section: Discussionmentioning

confidence: 47%

“…The retention of Cd in kidney cortex is well known from humans 34 and several animal species, e.g., horses, 35,36 rodents, 37 pigs 28 and cattle. [38][39][40][41] The increase in growing finishing pig kidneys is y15 mg kg 21 month 21 as shown by Linde ´n et al 28 However, these animals are only about 6 months old at slaughter and mono-gastric, which may explain the more rapid accumulation in pig kidneys than in cow kidneys. Koh et al 39 showed that the maximum permissible concentration of Cd in kidney (2500 mg kg 21 ) in Australia was exceeded more frequently in older cattle.…”

Section: Discussionmentioning

confidence: 99%

“…24 Even though we avoided dilution of our samples with medulla, the mean kidney Cd levels in the present study are similar to or lower than those found in other studies reported between the 1980s and 2000. [39][40][41][50][51][52][53][54][55][56][57][58][59][60] The reported concentration ranges are, however, greater in several other studies. The wider age and exposure ranges of the animals in these studies can probably explain this difference.…”

Section: Discussionmentioning

confidence: 99%

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Cadmium and zinc in kidney, liver, muscle and mammary tissue from dairy cows in conventional and organic farming

Olsson

Jonsson

Oskarsson

2001

J. Environ. Monitor.

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Input of Cd to arable soils occurs mainly through atmospheric deposition and mineral fertilisers. Phosphate fertilisers are often contaminated with Cd. In organic farming the use of mineral fertilisers is restricted. The impact of conventional and organic farming on Cd and Zn levels in tissues from dairy cows was studied. Kidney, liver, muscle and mammary tissue samples were collected at slaughter from 67 cows, aged 30-95 months, in a project with conventional and organic production at the same farm. Samples were analysed by electrothermal atomic absorption spectrometry with a quality control programme. Significantly lower levels of Cd were found in cows from the organic system (n = 29) than from the conventional cows (n = 38) in kidney [330 +/- 100 (mean +/- s) micrograms kg-1 vs. 410 +/- 140], liver (33 +/- 15 vs. 44 +/- 19) and mammary tissue (0.38 +/- 0.14 vs. 0.59 +/- 0.37), while there were no differences in muscle (0.48 +/- 0.13 vs. 0.49 +/- 0.14). Organic cow kidneys had lower Zn levels than conventional cows (19 +/- 1.4 mg kg-1 vs. 20 +/- 2), whereas muscles had higher Zn levels than conventional cows (67 +/- 16 vs. 51 +/- 12). Cd and Zn in mammary tissue were positively related to age and milk production. There was a positive relationship between levels in kidney of Cd and metallothionein (MT) and a Cd/MT concentration ratio indicating protection from Cd-induced renal dysfunction. When older animals, that entered the project as milk-producing cows, were included the differences in kidney and liver Cd levels between the systems were no longer significant, while Cd in kidney became related to age- and production-related parameters. The change of significant relationships when older animals were included shows the importance of controlled conditions for environmental monitoring.

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“…The issue of cadmium concentrations, as well as those of other "heavy metals", in the tissues of farm animals was dealt with, e.g., by Doganoc (1996), Pechova et al (1998). The authors demonstrated a higher cadmium cumulation in the kidney and liver dependent on the age of the cattle.…”

Section: Discussionmentioning

confidence: 99%

Cadmium concentration in cattle tissues in the Czech Republic

Drápal¹,

Steinhauser²,

Šťastný³

et al. 2021

Vet. Med. - Czech

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The aim of this paper was to evaluate the cadmium concentrations in the muscles, liver, and kidney of three age categories (≤ 8 months; ≤ 2 years; ≥ 2 years) of cattle during the period of years 2014–2019 and to determine the age limit at which the concentration of cadmium in an organ with the highest accumulation increases health risk for consumers. In cattle above two years of age, there was a higher average cadmium concentration in the liver (0.10 mg/kg) and kidney (0.62 mg/kg), when compared with cadmium concentration in the liver (0.06 mg/kg) and kidney (0.24 mg/kg) of cattle under two years of age. A paired correlation coefficient r = 0.825 8 (P < 0.006) and Spearman’s coefficient ρ = 0.92 (P < 0.000 1) were calculated for the dependence of the cadmium concentration on the age. The correlation analysis statistically demonstrated a significant positive correlation between the concentration of cadmium in the kidney and the age of the cattle. A non-significant difference between the maximum limit and the average concentration of the cadmium in the kidney of the cattle from the age of 6 years (P = 0.029) was demonstrated using the t-test. The cadmium concentration in the muscles was low and was not significantly affected by the cattle’s age.

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A Comparison of Cadmium Concentrations in Tissues of Different Categories of Cattle

Cited by 6 publications

References 7 publications

Cattle tissues as a source of cadmium for consumers

Cattle tissues as a source of cadmium for consumers

Cadmium and zinc in kidney, liver, muscle and mammary tissue from dairy cows in conventional and organic farming

Cadmium concentration in cattle tissues in the Czech Republic

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