Concentration of selenium in soil, pasture, blood and wool of sheep

Antunović, Zvonko; Vegara, Mensur; Šperanda, Marcela; Steiner, Zvonimir; Novoselec, Josip

doi:10.2298/avb1003263a

Cited by 12 publications

(8 citation statements)

References 17 publications

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“…At all the investigated farms feed Se was inadequate, but at 25 farms (83%) it was found to be clearly deficient (below 50 µg/kg DM). Similarly, low concentrations of Se in the feed were previously reported from other Western Balkan countries, such as Serbia ( Maksimovic et al, 1992 ), Croatia ( Antunovic et al, 2010 ), and Bosnia and Herzegovina ( Muratovic et al, 2007 ).…”

Section: Resultssupporting

confidence: 68%

Selenium and other mineral concentrations in feed and sheep's blood in Kosovo

Ademi

Bernhoft

Govasmark³

et al. 2017

Translational Animal Science

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The aim of this study was to assess the concentration of Se and other minerals in sheep and the supplied feed. Four macrominerals (Ca, P, Mg, and S), 7 microminerals (Se, Fe, Zn, Cu, Mn, Co, and Mo), and 2 toxic minerals (Cd and Pb) were analyzed in 69 feed and 292 sheep blood samples from 30 farms in different regions of Kosovo. The samples were analyzed using inductively coupled plasma mass spectrometry, and mineral concentrations in whole blood were measured to assess their status in animals. Concentrations of the different minerals in feed were found in the following ranges: 1.9 to 9.5 g Ca/kg DM, 0.8 to 3.2 g P/kg DM, 0.8 to 3.2 g Mg/kg DM, 1.0 to 2.8 g S/kg DM, 6 to 82 µg Se/kg DM, 33 to 970 mg Fe/kg DM, 15 to 42 mg Zn/ kg DM, 2.6 to 7.5 mg Cu/kg DM, 26 to 250 mg Mn/kg DM, 0.04 to 0.88 mg Co/kg DM, 0.05 to 0.86 mg Mo/ kg DM, 0.07 to 2.02 mg Pb/kg DM, and 0.02 to 0.19 mg Cd/kg DM. Concentrations of the microminerals analyzed in whole blood were found in the following ranges: 15 to 360 µg Se/L, 190 to 500 mg Fe/L, 1.4 to 3.8 mg Zn/L, 0.3 to 2.6 mg Cu/L, 6 to 243 µg Mn/L, 0.1 to 19.6 µg Co/L, and 1.8 to 66.0 µg Pb/L. Among all minerals, the largest deficiency was found for Se both in feed and sheep blood, with 82% of feed samples and 83% blood samples being inadequate, and its supplementation is necessary. Selenium-supplemented sheep had significantly higher Se concentration in blood than non-supplemented sheep (P < 0.01). In addition, other macro- and microminerals in feed such as P, S, Cu, and Co were at inadequate concentrations at some of the farms, and supplementation may also be needed for these minerals.

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Section: Resultssupporting

confidence: 68%

Selenium and other mineral concentrations in feed and sheep's blood in Kosovo

Ademi

Bernhoft

Govasmark³

et al. 2017

Translational Animal Science

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“…Of all sheep and dairy cows in this survey, 32% of the sheep and 26% of the dairy cows had WB-Se concentrations lower than 50 ng/mL showing that animal Se deficiency is a problem in the investigated Balkan countries. The results are similar with results from other low Se regions of the world in non-Se supplemented animals (Ramı́rez-Bribiesca et al, 2001b;Gierus et al, 2002;Govasmark et al, 2005;Rozenska et al, 2011) and it is consistent with previous studies from Western Balkan (Pesut et al, 2004;Muratovic et al, 2007;Antunovic et al, 2010) showing low blood Se concentrations, even though these studies have been conducted in very limited number of farms (3-5 farms) and wider scale studies about Se status of animals are not available in these Balkan countries. However, soil Se concentration in Serbia, Croatia, and B&H have been reported to be in the range of 24-677 µg/kg (Manojlovic & Singh, 2012), with most soils having less than 500 µg/kg, which is a limit of what is considered adequate to meet the animal need in feed plants.…”

Section: Sheep and Dairy Cow Wb-se Concentration On Selected Farmssupporting

confidence: 93%

Status of selenium in sheep and dairy cow blood in Western Balkan countries

Ademi

Govasmark²,

Bernhoft

et al. 2015

Acta Agriculturae Scandinavica, Section A — Animal Science

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The main goal of the study was to assess the selenium (Se) status of sheep and cows in some of the Western Balkan countries. A total number of 105 sheep and 160 cow blood samples (from 21 and 39 farms, respectively) were collected and analyzed for Se in the whole blood (WB). Samples have been analyzed using inductively coupled plasma mass spectrometry. The results showed that 85.6% of sheep and 45.6% of cows had inadequate (≤100 ng/mL) level of WB-Se concentration. The WB-Se concentration was significantly higher in both Se supplemented sheep and cows than in those without any Se supplementation. The WB-Se concentration was inadequate at all farms without Se supplementation. Therefore, Se should be supplemented to the animal feed or Se-biofortified feed used to ensure adequate level of Se in cows and sheep in all the Balkan countries.

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“…Selenium is another element, with paucity of data for Croatian soils. For its importance in sheep fodder, it was studied along with soil analysis in Slavonia and Barania in the eastern part of the country, but not covering the coastal areas [33]. As for boron, statistically significant differences were found, but within each sampling sites, the contents do not vary widely.…”

Section: Discussionmentioning

confidence: 99%

Geographic Differences in Element Accumulation in Needles of Aleppo Pines (Pinus halepensis Mill.) Grown in Mediterranean Region

2019

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Pine needles are widely used as bio-indicators due to their worldwide distribution and the ease of sample collection. In contrast to deciduous trees, conifers offer the possibility of monitoring long-term exposure through older needles. Pinus halepensis Miller is a pine species native to the Mediterranean region, which has been used for restoration activities in arid and semiarid areas leading to vast spatial expansion. Needles from pine trees collected in the southeastern to northwestern extension of Croatia’s coastal area at twelve sampling sites were analysed for twenty-one metals and metalloids. Statistical evaluation of the obtained data revealed significant differences for Al, As, B, Ba, Ca, Cr, Fe, K, Mg, Mn, Na, Se, and Sr between the different regions. Needles from trees growing on islands did not show elevated levels of Mg and/or Na as a result of the sea spray influence. The differences in metal accumulation are supposed to be linked to the environmental conditions at the respective sampling site, since the species was the same everywhere. By comparing the elemental contents of the soil those of with needles, it can be clearly seen, that the root as well as the foliar uptake contribute to the final amount.

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Concentration of selenium in soil, pasture, blood and wool of sheep

Cited by 12 publications

References 17 publications

Selenium and other mineral concentrations in feed and sheep's blood in Kosovo

Selenium and other mineral concentrations in feed and sheep's blood in Kosovo

Status of selenium in sheep and dairy cow blood in Western Balkan countries

Geographic Differences in Element Accumulation in Needles of Aleppo Pines (Pinus halepensis Mill.) Grown in Mediterranean Region

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