Trace elements in sheep — are they really a cure all?

Livestock ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 30-35
Author(s):  
Davinia Hinde
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Laboratory Tests ◽  
Blood Samples ◽  
Treatment And Prevention ◽  
Veterinary Surgeons ◽  
On Farm

Trace elements are an important factor on many sheep farms and a good way to engage clients when veterinary surgeons can become involved with an aspect of on-farm nutrition. This article outlines the major trace elements required by sheep, i.e. copper, cobalt, iodine and selenium, and discusses ways in which veterinary surgeons can become engaged with farmers around trace elements such as mineral audits and pre-mating blood samples. The appropriate laboratory tests for each trace element are discussed as well as the options for treatment and prevention of deficiencies.

scholarly journals Effect of cobalt supplementation on lamb growth rates in the face of cobalt deficiency

2020 ◽  
Vol 8 (2) ◽  
pp. e001099
Author(s):  
Kim Hamer ◽  
Hannah Mylin ◽  
Donald Barrie ◽  
Valentina Busin ◽  
Katharine Denholm
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Blood Sample ◽  
Growth Rates ◽  
Selenium Deficiency ◽  
Blood Samples ◽  
The Face ◽  
Cobalt Deficiency ◽  
Lamb Growth

A hill farm in eastern Scotland had noted poor lamb growth rates since 2014. Cobalt, selenium and copper deficiencies were reported from historical blood sample results, and trace element supplementation had been administered to the ewes, but not the lambs. A supplementation trial was undertaken in 2018 to compare the daily liveweight gain (DLWG) between lambs supplemented with trace elements and unsupplemented lambs. The trace element supplements used were intraruminal boluses containing 51-mg cobalt, 10-mg selenium and 60-mg iodine (Downland Essential Lamb bolus, Downland). Blood samples taken two months postsupplementation showed that unsupplemented lambs had cobalt-deficient status, but not selenium deficiency. Lambs supplemented with the trace element boluses had an increase in DLWG of 49 g/day compared with unsupplemented lambs. This case confirms that cobalt supplementation on deficient farms can be associated with a significant improvement in growth rates of growing lambs on Scottish hill farms.

Use of soluble glass boluses containing Cu, Co and Se in the prevention of trace-element deficiencies in goats

1988 ◽  
Vol 110 (1) ◽  
pp. 155-158 ◽  
Author(s):  
G. P. Zervas
Keyword(s):  
Trace Elements ◽  
Vitamin B12 ◽  
Trace Element ◽  
Serum Vitamin ◽  
Experimental Period ◽  
The Other ◽  
Blood Samples ◽  
The Third ◽  
Soluble Glass ◽  
Plasma Copper

SummaryTwo experiments were carried out to examine the value of copper, cobalt and selenium contained in soluble glass boluses as a means of providing supplementary trace elements to goats.In the first experiment 36 purebred Toggenburg goats were used and divided into two groups. One group was treated with soluble glass boluses while the other was left as control.In the second experiment 46 Saanen half-bred goats were used, divided into three groups. The first group was treated with soluble glass boluses, the second was treated with selenium injectable compound and the third was left as control.Blood samples were collected on four occasions, during an experimental period of almost 12 months and plasma copper, serum vitamin B12 and blood selenium concentrations were determined. All those measurements showed significant increases for about a year, and were due to treatment. The advantages of glass boluses were not shared by the selenium injectable compound.

scholarly journals Macromineral and trace element supply in sheep and goats in Austria

2017 ◽  
Vol 62 (No. 2) ◽  
pp. 62-73 ◽  
Author(s):  
V. Schweinzer ◽  
M. Iwersen ◽  
M. Drillich ◽  
T. Wittek ◽  
A. Tichy ◽  
...  
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Reference Values ◽  
Inductively Coupled Plasma ◽  
Clinical Signs ◽  
Emission Spectrometry ◽  
Meat Production ◽  
Blood Samples ◽  
Sheep And Goats ◽  
Inductively Coupled

The aim of this study was to determine the supply of 25 different macrominerals (calcium, magnesium, potassium) and trace elements (aluminium, arsenic, barium, boron, cadmium, cobalt, copper, iron, lithium, lead, manganese, molybdenum, nickel, selenium, silicon, strontium, sulphur, thallium, tin, titanium, uranium, zinc), and to ascertain the presence of any over- or undersupplies. As a second objective, we undertook a comparison of our results with existing reference values from selected literature and from laboratory analyses, with the aim of classifying the obtained results into the following categories: ‘deficiency’, ‘adequate’ and ‘oversupply’. For the study, 16 sheep and four goat farms located in the Austrian states of Upper Austria (n = 12), Carinthia (n = 6) and Vorarlberg (n = 2) were selected. From every farm, five serum blood samples were obtained by puncturing the vena jugularis to evaluate the macromineral and trace element status in clinically sound female sheep (n = 80; 12 different breeds) and female goats (n = 20; Saanen goats, Boer goats). The animals were kept for dairy farming (milking and/or meat production) or for landscaping. The mean age of both sheep and goats was 3.1 years (sheep: min. 0.5, max. 10; goats: min. 1, max. 5); 44% of the studied animals were lactating and 22% were pregnant at the time of sampling. The serum blood samples were sent to a laboratory and analysed using inductively coupled plasma optical emission spectrometry and inductively coupled plasma mass spectrometry. In summary, the supply with macrominerals and trace elements compared with reference values from the laboratory was adequate for As, Ca, Fe and Mg in sheep and for As, Ca, Cu, K, Mg and Se in goats. Although all animals in our study were examined for clinical signs of disease by the local veterinarian, oversupplies in sheep for the elements K and Mo and in goats for Fe as well as undersupplies in sheep and goats for Zn could be found in the serum of the studied animals.

scholarly journals Trace Element Analysis in Whole Blood and Plasma for Reference Levels in a Selected Queensland Population, Australia

2021 ◽  
Vol 18 (5) ◽  
pp. 2652
Author(s):  
Tatiana Komarova ◽  
Daniel McKeating ◽  
Anthony V. Perkins ◽  
Ujang Tinggi
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Whole Blood ◽  
Red Cross ◽  
Plasma Samples ◽  
Reference Levels ◽  
Blood Samples ◽  
Males And Females ◽  
Trace Element Levels ◽  
Age Range

The levels of trace elements in whole blood and plasma have been widely used for assessing nutritional status and monitoring exposure and can vary widely in populations from different geographical regions. In this study, whole blood samples (n = 120) and plasma samples (n = 120) were obtained from healthy donors attending the Red Cross Blood Bank (Queensland Red Cross Blood Service), which provided information for age and sex. There were 71 males (age range: 19–73 years) and 49 females (age range: 18–72 years) for whole blood samples, and 59 males (age range: 19–81 years) and 61 females (age range: 19–73 years) for plasma samples. The main aim of the study was to provide information on blood reference levels of 21 trace elements (Ag, Al, As, Bi, Br, Cd, Co, Cr, Cu, Hg, I, Mn, Mo, Ni, Pb, Sb, Se, Tl, U, V, Zn) in Queensland. The study also aimed to assess differences in trace element blood levels between males and females and the effect of age. The trace element levels in blood samples were analysed using inductively coupled plasma mass spectrometry (ICP-MS) and the standard reference materials of Seronorm (Trace Elements Whole Blood) and UTAK (Trace Elements Serum) were used for quality control and assurance. The study found wide variations of trace element levels in whole blood and plasma, and generally the levels were comparable to other countries. No detectable levels were found for Bi, Cr, U and V in whole blood, but V levels were found in plasma samples. There were significant differences between males and females for whole blood Cu (p < 0.001), I (p = 0.009), Tl (p = 0.016) and Zn (p = 0.016). Significant differences were also found for plasma Cu (p < 0.001) and Se (p = 0.003) between males and females. There were trends of increased levels of blood Pb, Se and Zn with age. The study has provided further information on a wide range of trace elements in blood as reference levels for Queensland and Australia which are currently lacking.

Methylmercury and Trace Element Distribution in the Organs of Stenella coeruleoalba Dolphins Stranded on the French Mediterranean Coast

2014 ◽  
Vol 8 (1) ◽  
pp. 35-48 ◽  
Author(s):  
Emmanuel Wafo ◽  
Véronique Risoul ◽  
Thérèse Schembri ◽  
Véronique Lagadec ◽  
Frank Dhermain ◽  
...  
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Marine Pollution ◽  
Element Distribution ◽  
Mediterranean Coast ◽  
Trace Element Distribution ◽  
Slight Reduction ◽  
Stenella Coeruleoalba ◽  
Contamination Levels

The main objective of this study was to evaluate the contamination by mercury (Hg), methylmercury (Me-Hg), cadmium (Cd), selenium (Se), zinc (Zn), copper (Cu), iron (Fe) and manganese (Mn) in dolphins stranded on the French Mediterranean coast. The distributions of these contaminants in the organs of dolphins have also been studied. Overall, contamination levels varied according to the following sequence: liver > kidney > lung > muscle, except for cadmium (kidney > liver > lung > muscle). Size and sex of animals were also considered. Young dolphins were less impacted with trace elements than adults, except for copper. Among the studied parameters, the most important appeared to be the size of mammals. In addition, in the case of mercury and selenium, the sex of mammals seemed to be also relevant. The correlations between the concentrations of trace elements suggest the existence of detoxification processes. Since 1990s, using dolphins for tracing marine pollution, a slight reduction in the burden of the considered trace elements could be noted.

scholarly journals Spatial distribution and potential ecological risk assessment of some trace elements in sediments and grey mangrove (Avicennia marina) along the Arabian Gulf coast, Saudi Arabia

2020 ◽  
Vol 18 (1) ◽  
pp. 77-96
Author(s):  
Hameed Alsamadany ◽  
Hassan S. Al-Zahrani ◽  
El-Metwally M. Selim ◽  
Mohsen M. El-Sherbiny
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Ecological Risk ◽  
Oil Pollution ◽  
Gulf Coast ◽  
Arabian Gulf ◽  
Avicennia Marina ◽  
Potential Ecological Risk ◽  
Average Concentration ◽  
Grey Mangrove

AbstractTo assess trace element concentrations (Zn, Cu, Pb, Cr, Cd and Ni) in the mangrove swamps along the Saudi coast of the Arabian Gulf, thirteen samples of surface sediment and leaves of grey mangrove, Avicennia marina were collected and analyzed. The detected trace element contents (μg g-1) in surface sediments were in the following descending order according to their mean values; Cr (49.18) > Zn (48.48) > Cu (43.06) > Pb (26.61) > Ni (22.88) > Cd (3.21). The results showed that the average concentrations of Cd and Pb exceeded their world average concentration of shale. The geo-accumulation, potential ecological risk and toxicity response indices demonstrated that trace elements have posed a considerable ecological risk, especially Cd. The inter-relationships between physico-chemical characters and trace elements suggests that grained particles of mud represent a noteworthy character in the distribution of trace elements compared to organic materials. Moreover, the results revealed that Zn was clearly bioaccumulated in leaf tissues A. marina. Dredging, landfilling, sewage effluents and oil pollution can be the paramount sources of pollution in the area under investigation.

Association of maternal serum trace elements with newborn screening-thyroid stimulating hormone

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yasemin Ucal ◽  
Muhittin Serdar ◽  
Cansu Akın-Levi ◽  
Zeynep Zulfiye Yıldırım-Keles ◽  
Cem Turam ◽  
...  
Keyword(s):  
Trace Elements ◽  
Newborn Screening ◽  
Thyroid Stimulating Hormone ◽  
Maternal Serum ◽  
Blood Samples ◽  
Free T3 ◽  
Flame Atomic Absorption ◽  
Serum Trace Elements ◽  
Tsh Levels ◽  
Stimulating Hormone

AbstractObjectivesTrace elements are essential in thyroid functioning as they incorporate into biologically important enzymes as cofactors. The placenta can either activate or inhibit the transfer of maternal trace elements to the unborn. An imbalance of maternal trace elements in pregnancy may affect both maternal and newborn thyroid function.MethodsBlood samples from 315 lactating mothers were collected in the first 48 h after delivery and evaluated for selenium (Se), copper (Cu), manganese (Mn), and zinc (Zn) using flame atomic absorption spectroscopy (FAAS) and quadrupole inductively coupled plasma-mass spectrometer (ICP-MS). Thyroid hormones and auto-antibodies (thyroid-stimulating hormone (TSH), free T3 (fT3), free T3 (fT4), anti–thyroid peroxidase (anti-TPO), and antithyroglobulin (anti-TG)) were analyzed in maternal blood using an electro-chemiluminescence immunoassay (ECLIA). Between 48 and 72 postpartum hours, spot blood samples were used for newborn screening-TSH measurement. Correlation and multivariate analyses were performed to evaluate the effect of maternal trace element levels on newborn screening-TSH levels.ResultsThe medians (min-max) of maternal Se (45.16 µg/L (21.28–79.04)), Cu (210.10 µg/dL (117.04–390.64)), Mn (2.11 µg/L (0.20–3.46)), and Zn (0.43 mg/L (0.24–0.66)) were determined. A positive correlation was detected between Zn and maternal TSH levels (r=0.12, p < 0.05). Newborn screening-TSH was significantly correlated with maternal Cu (r=0.14, p < 0.01). Similarly, Cu exhibited weak associations in clustering analysis while others shared common clusters with newborn-screening TSH.ConclusionsThere was no significant association between most of the maternal serum trace elements and maternal thyroid hormone parameters, with an only exception between maternal Zn and maternal serum TSH. Finally, the association between maternal serum Cu levels and newborn screening-TSH levels may highlight the importance of maternal Cu levels on the newborn thyroid health.

scholarly journals Vitamin Analysis, Trace Elements Content, and Their Extractabilities in Tetrapleura tetraptera

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Prince Oteng ◽  
John K. Otchere ◽  
Stephen Adusei ◽  
Richard Q. Mensah ◽  
Emmanuel Tei-Mensah
Keyword(s):  
Trace Elements ◽  
Vitamin A ◽  
Vitamin C ◽  
Trace Element ◽  
Trace Element Content ◽  
Beta Carotene ◽  
Flame Atomic Absorption ◽  
Significant Difference ◽  
Tetrapleura Tetraptera ◽  
Vitamin Analysis

Tetrapleura tetraptera is widely cherished in African traditional homes because of its alleged therapeutic and nutritional properties. This present study aimed at determining the levels of vitamin A, C, E, and beta-carotene and trace element (Fe, Cu, Mn, Co, Se, and Zn) concentrations and their extractabilities in the pulp, seeds, and whole fruit (mixture of pulp and seeds) of T. tetraptera. The total trace element concentration of Fe, Cu, Co, Mn, and Zn and their extractabilities (%) were determined using flame atomic absorption spectrometer (FAAS), whereas UV-VIS spectrophotometer was used to determine selenium concentration. The trace element content (mg/kg) based on dry weight in the pulp, seeds, and whole fruit was Fe (162.00 ± 7.14, 115.00 ± 12.00, and 154.00 ± 25.20, respectively), Zn (31.60 ± 4.77, 43.40 ± 5.29, and 41.50 ± 8.97, respectively), Cu (16.10 ± 4.98, 11.90 ± 8.40, and 17.20 ± 14.50, respectively), Mn (55.30 ± 2.41, 156.00 ± 10.20, and 122.00 ± 5.29, respectively), Co (38.10 ± 6.40, 21.10 ± 7.15, and 44.00 ± 14.90, respectively), and Se (1.49 ± 0.17, 2.43 ± 0.28, and 2.97 ± 0.27 μg/g, respectively). The mineral extractabilities (%) in the pulp, seeds, and whole fruit of T. tetraptera were established to be in the order Co > Zn > Fe > Cu > Se > Mn. Also, the chromatographic method (HPLC) was used to evaluate vitamin E concentration, and vitamin C and concentration of beta-carotene were calculated from the obtained concentration of vitamin A using a conversion factor by the titrimetric method. From the results of vitamin analysis, a significant difference (p<0.05) was observed among the pulp, seeds, and whole fruit for vitamin C and E. However, no significant difference (p>0.05) was perceived among these plant parts for vitamin A and beta-carotene. This study has therefore revealed that the pulp, seeds, and whole fruit of T. tetraptera contain varying concentrations of vitamins and trace elements and has given many vital insights on which part of T. tetraptera to consume, as concentrations of these nutrients differ in the discrete parts of the fruit.

scholarly journals Comparative Genomics of Trace Element Dependence in Biology

2011 ◽  
Vol 286 (27) ◽  
pp. 23623-23629 ◽  
Author(s):  
Yan Zhang ◽  
Vadim N. Gladyshev
Keyword(s):  
Trace Elements ◽  
Comparative Genomics ◽  
Trace Element ◽  
Evolutionary Dynamics ◽  
Protein Families ◽  
Fundamental Properties ◽  
Recent Advances ◽  
Living Organisms ◽  
Zinc Protein

Biological trace elements are needed in small quantities but are used by all living organisms. A growing list of trace element-dependent proteins and trace element utilization pathways highlights the importance of these elements for life. In this minireview, we focus on recent advances in comparative genomics of trace elements and explore the evolutionary dynamics of the dependence of user proteins on these elements. Many zinc protein families evolved representatives that lack this metal, whereas selenocysteine in proteins is dynamically exchanged with cysteine. Several other elements, such as molybdenum and nickel, have a limited number of user protein families, but they are strictly dependent on these metals. Comparative genomics of trace elements provides a foundation for investigating the fundamental properties, functions, and evolutionary dynamics of trace element dependence in biology.

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