Relevant bibliographies by topics / Trace elements in animal nutrition research

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Academic literature on the topic 'Trace elements in animal nutrition research'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 February 2022

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Journal articles on the topic "Trace elements in animal nutrition research"

1

Grace, N. D., P. R. Wilson, and A. M. Nicol. "The copper nutrition of grazing deer." NZGA: Research and Practice Series 9 (January 1, 2003): 113–19. http://dx.doi.org/10.33584/rps.9.2002.3410.

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The first deer farms were established in New Zealand about 30 years ago and much of the early deer research was focussed on general nutrition, infectious diseases, management and husbandry practices, while little attention was given to trace elements. Limited trace element studies have identified copper (Cu) as the most important trace element for deer in terms of observed clinical signs of deficiency, namely enzootic ataxia and osteochrondrosis, and their possible impact on animal performance (Wilson et al. 1979; Thompson et al. 1994). To ensure that the Cu status of deer is adequate, and to determine if a Cu supplementation strategy is necessary, it is important to understand the distribution, function and metabolism of Cu, as well as dietary Cu requirements and criteria to diagnosis Cu deficiency. Keywords: Cervus elaphus, copper, deficiency, dietary requirements, fertiliser, forage, red deer, supplementation strategies
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Biel, Wioletta, Ewa Czerniawska-Piątkowska, and Alicja Kowalczyk. "Offal Chemical Composition from Veal, Beef, and Lamb Maintained in Organic Production Systems." Animals 9, no. 8 (July 26, 2019): 489. http://dx.doi.org/10.3390/ani9080489.

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The aim of the study is to compare the content of nutrients, including selected macro- and micro-elements, in musculus semitendinosus and offal (liver, heart, kidneys, tongue, brain) derived from animals (calves, beef cattle, and lambs) that are fed and maintained in organic production conditions. The experimental material consisted of 60 animals: 20 calves, 20 beef cattle, and 20 lambs. This research was carried out using Limousin cattle and Ile de France sheep. From the obtained results, it is concluded that the physicochemical and nutrient composition varied significantly among the organs and species studied. Almost all byproducts are a rich source of trace elements, whose levels/amounts are usually much higher in byproducts such as offal than in muscular tissues. Also, for economic reasons (profitability), byproducts (offal) can be commercially sold for human and animal nutrition. Byproducts are processed and incorporated into many food products and provide competitive nutritional value for use by tissues and muscles (vitamins and elements).
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Masters, D. G., G. J. Judson, C. L. White, J. Lee, and N. D. Grace. "Current issues in trace element nutrition of grazing livestock in Australia and New Zealand." Australian Journal of Agricultural Research 50, no. 8 (1999): 1341. http://dx.doi.org/10.1071/ar99035.

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Improving trace element nutrition of grazing animals, in a way that is cost effective and that meets consumer perceptions and preferences, is a continuing challenge. This review focuses on research over the past 10 years, addressing issues and perspectives on the roles, risks of inadequacy, and supplementary remedies of key trace elements, both essential and deleterious, which have an impact on the productivity and product quality of grazing livestock throughout Australia and New Zealand. The emphasis is on copper (Cu), cobalt (Co), iodine (I), selenium (Se), and, to a lesser extent, zinc (Zn) — the trace elements most frequently found to be deficient in parts of Australia and New Zealand. Research continues to elucidate new roles for trace elements in the animal, and as this leads to a better understanding of requirements, diagnostic criteria and supplementation strategies need re-evaluation. Newer perspectives on marginal deficiency for Cu, I, Se, and Zn are given and issues for risk management discussed. Advances in sustained delivery of trace elements such as Co (as vitamin B12), I, and Se are reported. The diagnosis and management of marginal Cu deficiency continue to be difficult, especially in New Zealand where recent work has shown that dietary antagonists [iron (Fe), molybdenum (Mo), and sulfur (S)] may impair Cu absorption at lower intakes than previously thought. There is still a dearth of scientific data on the advantages of using so-called organic trace element supplements (metals complexed or chelated with amino acids or peptides). Nevertheless their usage continues to increase. There is increasing evidence that trace elements influence the pathophysiology arising from the ingestion of toxins. This review summarises recent work on the role of Co in annual ryegrass toxicity; Cu, Se, and Zn in lupinosis; Cu and alkaloid toxicity; Zn and facial eczema; and Co and white liver disease. Trace elements are required to support immune function (e.g. as imposed parasite infection) and marginal deficiencies may be exacerbated by an immunological challenge. The roles of Cu, Co, Mo, Se, and, to a lesser extent, chromium and Zn have attracted attention and under conditions of stress there may be an additional need for these elements. Diversification in farming has led to the introduction of species such as deer (Cervus), alpacas (Camilids), emus, and ostriches (Ratites) and the paucity of information on trace element requirements for these species, and also for horses, indicates the need for further work. The effect of supplementation on trace element composition of meat, milk, and wool is also reviewed, both in terms of product characteristics and human health. Of the deleterious elements, cadmium has attracted the most interest and concern because of its introduction into the pastoral system from phosphate-based fertilisers.
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Darmohray, L. M., I. S. Luchyn, B. V. Gutyj, P. I. Golovach, M. M. Zhelavskyi, G. A. Paskevych, and V. I. Vishchur. "Trace elements transformation in young rabbit muscles." Ukrainian Journal of Ecology 9, no. 4 (December 10, 2019): 616–21. http://dx.doi.org/10.15421/2019_798.

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According to scientific publications, transformation of nutrients in the rabbit feed should be studied with regard to rabbit nutritional specifics that is caused by differences of alimentary canal of the species, involving microorganism role in the digestive process. In the experiment, The research considered the transformation of essential micronutrients of feed (Zn, Cu, and Mn) and their concentration in muscle carcasses of rabbits of differentl age and origine, in industrial rabbit production in Prykarpatyia. Feeding norms and nutrient requirements for experimental animals were performed according to rabbit nutrition requirements approved by the VIII International Rabbit Congress (EGRAN tables, 2004). It has been found out that supplying rabbits of different genotypes with the same nutrition affect the retention of studied micronutrients in certain muscles carcasses differently. The experiment demonstrated that the longest back muscle of a 3-month old new hybrid rabbit (NTC) contented the highest amount of zinc and accounted 6.78 � 0.118 mg kg-1 which was by 1.43 mg kg-1 (p =0.001) more than in the rabbits of the local chinchilla (second group). It is proved that the greatest amount of cuprum was concentrated in the hip carcasses of rabbits of the first group (NTC). This rabbit genotype (first group) dominated over the local breed (the second group) regarding this indicator, when the animals were 2 and 3 months old, by 0.15 and 0.49 mg kg-1 respectively (p=0.01). The content of manganese in the muscles of the hips was also higher in the newly-selected three-breed during all the farming period. Thus, at the age of 2 months, rabbits of the first group outweighed their peers in the second group by 6.52 mg kg-1 (p=0.05), at the age of 3 months - by 1.57 mg kg-1 (p=0.01) and at the age of 4 months - by 0.89 mg kg-1 (p0.01). The three-breed rabbit genotype of of the first group was dominated by pure-breed analogues of the second group in terms of weight gain and feed conversion by 7.5 and 3.4% respectively. Due to better transformation of these trace elements, in the body of intensively growing rabbits, the environment is less polluted. The highest concentration of these trace elements was found in the rabbit muscles of both groups in the 3rd month of life. The highest content of the micronutrients studied was observed in the longest and suprascapular muscle of rabbits. The prospects of further research on the study of the transformation of other heavy minerals in industrial cultivation of rabbits has been overviewed.
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Antunović, Zvonko, Boro Mioč, Zdenko Lončarić, Željka Klir Šalavardić, Ivan Širić, Valentino Držaić, and Josip Novoselec. "Changes of macromineral and trace element concentration in the blood of ewes during lactation period." Czech Journal of Animal Science 66, No. 4 (March 26, 2021): 129–36. http://dx.doi.org/10.17221/250/2020-cjas.

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The aim of the present research was to determine the changes in macromineral and trace element concentrations in ewes’ blood during the lactation period. Thirty-six Travnik pramenka ewes at the average age of 3–5 years were included in research and they were evaluated at three stages of lactation: early stage (40 ± 5 days of lactation), medium stage (80 ± 5 days of lactation) and late stage (120 ± 5 days of lactation). In ewes’ blood concentrations of macroelements (Ca, P, K, Na, Mg) and trace elements (Fe, Cu, Zn, Mo, Co, Se, Cd, As) were determined. The average concentrations of macroelements and trace elements in the blood of ewes during lactation were mostly within the reference values. Se concentrations in blood were close to the deficient ones, while concentrations of Cd and As were negligible. Concentration of Ca in blood was the lowest in the early lactation stage, higher in the late stage, and the highest in the medium stage (88.25 mg/l, 96.43 mg/l and 103.43 mg/l, respectively). A significant increase in the concentrations of Mg, Co and Cd and a significant decrease in the concentrations of Na, Fe, Cu, Zn, Mo and Se were found in blood with lactation progress. Significant correlations between the studied parameters were found, especially between macroelements (Ca : K, P : Na, K : Na, K : Mg). Positive correlations were found between some macroelements and trace elements (Ca : Co, Ca : Cd, K : Co, Na : Zn, Na : Se) and between trace elements (Fe : Cu, Cu : Zn, Cu : Mo, Cu : Se, Zn : Se, Mo : Se and Co : As). Negative correlations were found between Ca and Cu, Ca and Mo, P and Cd, K and Cu. Obtained results may help in monitoring the nutritional status and health of ewes during the lactation period, providing a clearer idea related to the supply of macrominerals and trace elements to ewes. Besides, results indicated that the environment of the farming area was not polluted with toxic elements.
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Sizova, E. A., and A. M. Makaeva. "The influence of highly dispersed preparations on metabolism and productivity of young cattle." Kormlenie sel'skohozjajstvennyh zhivotnyh i kormoproizvodstvo (Feeding of agricultural animals and feed production), no. 12 (December 1, 2020): 22–33. http://dx.doi.org/10.33920/sel-05-2012-03.

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Preparations of highly dispersed particles of trace elements are increasingly used in animal husbandry. This is determined by their extraordinary biological properties such as the ability to penetrate into tissues and organs, a high surface area, and so on. One of the promising directions for using highly dispersed particles both in the post-embryonic and embryonic periods of animal development is the use of trace elements as sources. This is determined by the relatively lower toxicity, higher bioavailability of elements from preparations of highly dispersed particles, which reduces the load on the environment and allows you to produce products enriched with minerals. The purpose of the research was to study the effect of highly dispersed drugs on rumen digestion, the composition of the rumen microbiome, metabolism and productivity of young cattle. A comprehensive assessment of the use of highly dispersed SiO2 and FeCo preparations in cattle nutrition has been provided in the paper. The digestibility of feed, metabolism, and productivity of young cattle when feeding highly dispersed particles have been studied. An unusual fact of increasing bacterial biomass when using highly dispersed particles of silicon dioxide in animal feeding has been described. A method for increasing the digestibility of feed components by ruminants through the use of highly dispersed FeCo alloy particles has been proposed. As follows from the data obtained the use of highly dispersed particles allowed to increase the live weight of experimental young animals to 413 kg in the 1st experimental group and 416 kg in the 2nd experimental group, which was by 11 (P ≤ 0,01) and 14 kg (P ≤ 0,01) higher than the control indicator. As follows from the analysis of the data obtained, the profitability of rearing young animals in the 1st and 2nd experimental groups was by 2,4 and 2,2 % higher than the same indicator calculated for the control group.
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Hogan, JP. "Options for manipulating nutrition if feed supply is immutable." Australian Journal of Agricultural Research 47, no. 2 (1996): 289. http://dx.doi.org/10.1071/ar9960289.

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The Australian pastoral industries depend almost entirely on the nutrients derived from the available pasture and browse. This is particularly true for the northern cattle industry, where the production of pasture, and hence animal productivity, depend on the length of time that sufficient soil moisture is available during and after the wet season to sustain pasture growth. Animal nutrition is further affected by the relatively low digestibility of tropical grasses even at early stages of maturity. Hence animal production is marked by relatively low annual weight gain and poor reproductive performance. Research to date has demonstrated that lack of nitrogen both as ammonia for rumen microbes and as amino acids for the animal's tissues is the major nutritional deficit, which causes a depression in feed intake and hence exacerbates an already existing energy deficit. In many areas, too, deficiencies of P, Na, S and trace elements have been identified. Broadly speaking, the technology has been developed to overcome these nutritional deficiencies and to investigate remaining problems of undernutrition and low productivity. It is probable that new tropical legumes suited for areas with less than 750 mm annual rainfall will also be developed. However, despite these efforts, animal production will tend to be low, because for much of the year the high fibre low protein forage is eaten in only restricted amounts, and because only 40% or so of the energy in the forage becomes available to the animal. There is, therefore, need to develop rumen microbes capable of more rapid and more extensive breakdown of plant fibre and to achieve new methods to improve the conversion of amino acids into animal protein.
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Dzagurov, B. A., V. I. Eremenko, A. G. Karlov, M. A. Payukhina, and V. N. Suvorova. "The effect of bentonite feeding for young cattle on the exchange of nitrogen, mineral elements and the digestibility of diet nutrients." E3S Web of Conferences 254 (2021): 08028. http://dx.doi.org/10.1051/e3sconf/202125408028.

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The completeness of animal nutrition rations in terms of the content of minerals is considered one of the conditions for balanced feeding, since their lack in the diet often leads to metabolic process disorder among animals, which reduces growth and development, productivity, disturbs reproductive ability, and develops endemic diseases. Currently, for the partial compensation of trace mineral deficiency in the diets of use mineral substances of natural origin. One of such sources is bentonite clay of the Zamankul deposit. Taking into account the significant increase of the economically useful traits among young cattle identified in our studies when feeding with bentonite, substantiated by physiological studies, we performed research to study the exchange of nitrogen, mineral elements and the digestibility of nutrients in the body of 9 - 18-month-old cattle of the Simmental breed for fattening at the farm “Kaloev”, stanitsa Zmeyskaya, North Ossetia-Alania. Studies have established the digestibility of nutrient increase in the feed ration from 1.8 to 3.5%, a significantly greater retention of nitrogenous substances in the body of animals fed with bentonite - by 8.2%, a significant improvement of mineral element use in the feed.
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Sobolev, O. I., B. V. Gutyj, and S. V. Soboleva. "Selenium in natural environment and food chains. A Review." Ukrainian Journal of Ecology 10, no. 4 (August 10, 2020): 148–58. http://dx.doi.org/10.15421/2020_182.

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The analytical review attempts to summarize the results of numerous scientific research conducted by scientists around the world on selenium scattering and accumulation in natural environment, with considerable attention paid to the concentration of this trace element in soils, natural waters and plants. It is shown that selenium content in agricultural products is caused by the processes of physico-chemical and biogenic migration of this element in the biogeochemical food chain. According to the modern classification of trace elements, which is based on their biological significance for living organisms, selenium belongs to the vital group or biogenic elements. As a biotic element, it has unique physicochemical and biochemical properties and with adequately absorbed into the human body has a positive effect on a number of physiological processes. Various research shows that the majority of the world population (except in some regions) today consumes less selenium with the food than necessary and its consumption decreases every year. Insufficient selenium intake in the human body (less than 15–30 μg/day) leads to the development one of the hypomicroelementosis – hyposelenosis. Selenium deficiency is considered as a possible etiological factor in some cardiovascular, cancer, osteoarticular and neurodegenerative diseases that threaten to human life. Providing the human body with selenium in optimal amounts is one of the important conditions of nutrition. A number of countries have developed recommended selenium intake standards for the adults, which range from 55 to 120 μg/day. We can calculate the physiological need for selenium in children and adolescents by extrapolation. The most safe and effective way to maintain the necessary level of selenium for the human body can be achieved only through the poultry and livestock products by mandatory introduction of premixes containing highly effective biologically available selenium forms into animal feed. This will ensure a relatively high level of trace element in meat, eggs, and milk and would eliminate the cases of toxicosis in human population due to buffer effect of animal tissues.
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Bickel, Michael. "Preface." Pure and Applied Chemistry 78, no. 1 (January 1, 2006): viii. http://dx.doi.org/10.1351/pac20067801viii.

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Trace elements may have different functions in human and animal metabolism: some are toxic (e.g., Hg), others are essential to maintain good health (e.g., Ca), or they can be essential but also toxic, depending on the concentration in the body or in parts thereof (e.g., Se).The importance of various aspects of trace elements in relation to food is steadily increasing in the perception of the consumer and the respective authorities: food contaminants, essential and toxic elements, bioavailability and speciation, nutritional value and fortified food, reliable measurement of contents, etc. In addition, through the many minor and major food-related incidents during recent years the consumer is becoming more concerned about the quality and safety of food. As a result, research and development efforts in this area have also been increased and/or been redirected.TEF-2 was organized in Brussels 7-8 October 2004 by the Institute of Reference Materials and Measurements of the Joint Research Centre of the European Commission, with the support of the Department of Food Analysis, Institute of Agricultural and Food Biotechnology of the University of Warzaw, Poland and the Centre National de la Recherche Scientifique, France. It was carried through under the auspices of IUPAC.The objectives laid down for the symposium were- presenting state-of-the-art analytical methods for the enforcement of legal limits of trace elements in food;- disseminating new ideas and findings within the scientific community;- providing a forum for the exchange of new knowledge and experience between R&D, authorities, and industry; and- bringing together experts in the field with newcomers.TEF-2 was attended by 93 participants from 60 different institutions in 23 countries. It consisted of 26 lectures and 56 posters, structured according to the following four main topics:- trace elements in the food chain (from the environment to shelf product) including the effects of processing and of legislation- trace element bioavailability-toxicological and nutritional aspects- fortified food and supplementation legislation, manufacturing and labeling, standards- advances in trace element analysis in food matricesIt was emphasized that the field of trace elements in food is a lively research area, which generates interest and involvement from researchers, authorities, and industry, of course triggered and nurtured by the equally high interest of the consumer. A selection of the invited contributions to TEF-2 is presented in the subsequent seven papers in this issue.The importance of scientific exchange in this field was, again, recognized during TEF-2. Therefore, the continuation of this series of conferences was discussed, and the venue for the subsequent TEF-3 was decided. It will be organized by R. Lobinski of CNRS in Pau, France, at the beginning of October 2008.Michael BickelConference Editor
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Dissertations / Theses on the topic "Trace elements in animal nutrition research"

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Al-Amer, Saleh Suliaman. "Nutritional and toxicological studies on New Zealand mutton bird meat (Puffinus griseus)." Lincoln University, 2009. http://hdl.handle.net/10182/1659.

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New Zealand mutton bird or tītī (Puffinus griseus and order procellariiformes) nest in New Zealand during the summer months, migrate to the northern hemisphere during May and return in September. Their eggs are laid during November and December and the chicks are hatched in the following January and February. Large numbers of them are harvested from April to May in New Zealand. They are wild seabirds annually harvested by Maori according to the customary rights agreement set by Treaty of Waitangi.NZ mutton birds also called Sooty Shearwaters are noted for their high proportion of body fat.These birds are interesting since its sole diet is based on krill and other small marine organisms that are potentially rich in n-3 fatty acids and other marine bioactive compounds. The proximate composition, fatty and amino acids and cholesterol content of mutton bird pectoral muscle were determined and compared with other common meat to explore the nutritional value of this New Zealand delicacy. The concentration of twenty two essential and toxic elements including silver (Ag), aluminium (Al), arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), manganese (Mn), lead (Pb), selenium (Se), potassium (K), calcium (Ca), magnesium (Mg), boron (B), iron (Fe), nickel (Ni), sulphur (S), sodium (Na) and cobalt (Co) and zinc (Zn) in mutton bird breast meat (Puffinus griseus) were measured over two years to evaluate its safety for human consumption. Persistent organochlorine, dichlorodiphenyltrichloroethane (DDT) and their metabolites, and aldrin and lindane were also measured.Twenty bird carcasses were purchased in both 2006 and 2007 from a local source. Meat samples from the pectoral muscle of two carcasses were pooled to generate 10 samples for each year. These were used for trace element analysis using inductively coupled plasma-mass spectrometry (ICP-MS). Trace elements were in the range of 0 to 1.09 mg/kg wet weight for Ag, 0 to 3.32 for Al, 0.17 to 0.79 for As, 0.01 to 0.07 for Cd, 0.03 to 0.15 for Cr, 3.56 to 4.88 for Cu, 0 to 0.15 for Hg, 0.22 to 0.50 for Mn, 0 to 0.09 for Pb, 0.66 to 1.18 for Se and 11.49 to 23.70 for Zn. In 2006, Ag, Al, Mn and Zn concentrations were significantly higher but Pb and Hg concentrations significantly lower compared to the 2007 samples (P < 0.05). Apart from one sample in 2006, all the samples were below the published maximum level for concern. However, our preliminary data indicated that the higher level of Cd and other metals in the skin of mutton bird may compromise the overall safety to humans consuming the skin of mutton birds. It is suggested that the evaluation of the metals in different parts and/or the whole mutton bird at different seasons is required to assure complete safety to the consumers.Furthermore, the nutritional value of mutton bird meat was studied over two harvesting seasons (2006 and 2007) to investigate the impact of seasonal variation. The moisture and carbohydrates contents ranged between 54.0 to 55.0 % and 2.8 to 3.0 %, respectively, and no seasonal effects were evident in these components. The values for fat and ash contents were higher and the protein content lower for birds harvested in 2007 compared with the 2006 values which ranged from 11.8 to 13.0, 10.3 to 11.7, and 20.3 to 18.5 % for fat, ash and protein content respectively. The major amino acids in mutton bird pectoral muscle were glutamate, aspartate, lysine, leucine, and arginine. Higher lysine concentrations and lower proline, cystein and methionine were found in mutton birds compared with the literature values for beef, lamb and pork. The essential amino acid content in mutton bird (43.8 and 44.9 % in 2006 and 2007, respectively) was slightly higher than those found in beef and lamb meats (42-43%).The major fatty acids detected were palmitic (C16:0), stearic (C18:0), oleic and isomers (C18:1), eicosenoic (C20:1), Docosahexaenoic acid (DHA) (C22:6), icosapentaenoic acid (EPA) (C 20:5) and these accounted for approximately 77% of the fatty acids. The 3/6 ratio of fats from pectoral muscle was 1.3. The cholesterol concentration varied slightly in the two years with 184.4±37.37and 134.4±25.55mg/100 g fresh weight for 2007 and 2008 respectively. Mutton bird was shown to contain significantly higher cholesterol content (134.4-184.4) than other common meat such as chicken (80.3-88.9), lamb (62.3), fish (52.79) and beef (51.97). Overall, the nutritional value of mutton bird muscle was similar to or superior to the traditionally protein sources such as seafood and red meat. Annual variations existed in the composition of Mutton bird pectoral muscle but this is not of nutritional consequence but might be a useful indicator for ecological events such as feed availability and other environmental issues. Mutton bird seems to be a good source of essential minerals, Zn and Fe compared with other traditional meats source. Mutton bird meat is nutritionally as good as the major sources of red or white meats. It may even have advantages over the other common meats (beef, lamb, fish and chicken) due to its high protein and monounsaturated fatty acids (omega n-3 and n-6) content. However, its high cholesterol content may represent a risk factor for some people.
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Knight, Simon Alexander Bowles 1961. "The use of anti-glutathione peroxidase antibodies in the study of selenium-dependent glutathione peroxidase." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276906.

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Liver glutathione peroxidase activity is affected by changes in selenium (Se) status. To investigate the effect of Se status on GSH-Px protein we prepared antibodies against rat liver GSH-Px and used them in an ELISA. The immunoreactivity of the anti-GSH-Px antibodies against GSH-Px was both tissue and species specific. When rats were depleted of Se, liver GSH-Px activity decreased exponentially to zero with a half-life of 2.8 d. Liver GSH-Px protein also decreased exponentially, but not to zero, with a longer half-life of 5.2 d. Dietary repletion of Se-deficient rats with 0.5 mg Se/kg diet increased GSH-Px protein and activity after 1 d. After 14 d of repletion the levels of GSH-Px protein and activity had plateaued at the levels present in Se-adequate rats. When Se-deficient rats were injected with 15 or 60 ug Se, only rats injected with 60 ug Se and killed 24 h later showed an increase in GSH-Px protein and activity. These results suggest that when Se is limiting, GSH-Px protein and GSH-Px activity are coordinately regulated by the available Se, but in Se-adequacy homeostatic processes control the level of GSH-Px.
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Waschulewski, Ingo Herbert 1962. "Effect of dietary methionine on selenomethionine metabolism and utilization for selenoproteins." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276933.

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The effects of dietary methionine (Met) on the utilization of selenium (Se) from stored tissue Se and dietary selenomethionine (SeMet) for glutathione peroxidase (GSH-Px) synthesis were studied in male rats. Plasma, liver and muscle Se significantly increased when rats were fed 0.5 mg Se/kg diet as SeMet in a Met-deficient diet for 21 d, whereas tissue GSH-Px activities decreased 43-50% during the SeMet supplementation period, suggesting that Se is deposited as SeMet in general body proteins. By calculation, a significant lower percentage of Se was associated with GSH-Px in Met-deficient as compared to Met-supplemented rats. Dietary Met supplementation increased the incorporation of 75Se from 75SeMet into specific rat selenoproteins in addition to liver GSH-Px. Overall, these results suggest that intact SeMet is preferentially incorporated non-specifically into general body proteins in Met-deficient rats, whereas with supplemental Met, more SeMet is degraded and the released Se used for specific selenoprotein synthesis. (Abstract shortened with permission of author.)
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Smith, Cornel. "The effect of preserving liver tissue in formalin on the concentration of trace minerals in the liver." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-08052005-101056/.

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Bourgeois, Annie-Claude. "Dietary boron deficiency and elevated in vitro boron concentrations reduce survival of the murine gastrointestinal nematode, Heligmosomoides bakeri." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100778.

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In the past 20 years, boron has been identified as an essential trace element for animals and humans but also as an increasingly important industrial pollutant. We examined first whether boron influenced survival of the gastrointestinal nematode Heligmosomoides bakeri. Female Balb/c mice were fed deficient (0.1 mug B/g), marginal (2.0 mug B/g) or control (12.0 mug B/g) diets, and infected with third-stage larvae. Although liver boron concentrations did not differ among diet groups, dietary boron deficiency impaired survival of the parasite and modulated a broad range of cytokines and chemokines. On the other hand, infection history altered liver mineral concentrations. Second, we examined whether elevated boron concentrations would exert toxic effects on H. bakeri in vitro. Boron toxicity was evidenced by reduced motility, fecundity, infectivity and survival. Feeding stages and free-living stages were more sensitive than non-feeding stages and parasitic stages respectively in a dose-dependent manner.
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Silva, Felipe. "The Effects of Injectable Trace Mineral Supplements in Donor Cows at the Initiation of a Superovulation Protocol on Embryo Outcomes and Pregnancy Rates in Recipient Females." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/28856.

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Concentrations of trace minerals within the body are known to impact reproductive processes. Thus, the current study analyzed the effects of using an injectable trace mineral supplement containing selenium, zinc, copper, and manganese during a superovulation protocol on embryo outcomes in donor beef cows and further effects on pregnancy rate in recipient females. We hypothesized that an injectable trace mineral (TM) supplement provided to cows fed to meet known nutrient requirements would increase TM status and influence superovulation, embryo characteristics, and enhance pregnancy rates. Our findings indicate that the injectable TM increased concentration of Se within the liver. However, superovulatory response, embryo production, quality grade, and developmental stage were not influenced by TM status. In addition, embryo treatment did not influence pregnancy rate, gestation length, or calf body weight.
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Ortman, Kerstin. "Organic vs. inorganic selenium in farm animal nutrition with special reference to supplementation of cattle /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5411-5.pdf.

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Nantapo, Carlos Wyson Tawanda. "Effect of stage of lactation on milk yield, somatic cell counts, mineral and fatty acid profiles in pasture-based Friesian, Jersey and Friesian × Jersey cows." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/d1006810.

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The effect of stage of lactation on milk yield, somatic cell counts, mineral and fatty acid profiles in pasture-based Friesian, Jersey and Friesian × Jersey cows was investigated. Twenty Friesian, twenty Jersey and twenty Friesian × Jersey cows were randomly selected from a dairy herd. A total of 202 milk samples were collected and analysed in three stages of lactation. Genotypic differences were observed in milk yield and fat content. Friesian cows produced the highest yield and lowest fat content whereas the opposite was true for Jersey cows (P<0.01). No significant differences were observed in SCC in the different genotypes, but SCC levels were higher in mid and late lactation (P<0.001). There was no effect (P<0.005) of genotype and stage of lactation interaction on Ca, P, Mg, Na, Mn and Bo concentration. Jersey cows had the least concentration of Fe and Cu in all stages of lactation. Strong positive correlations were observed among Ca and P, Mg and Zn. Aluminium had a strong positive relationship with Bo, Fe, Mn and Zn (P<0.001). Generally, SCC had a weak positive relationship with macro elements but a significant negative relationship with microelements. Yield levels were negatively correlated with Mg, Na, Al, Mn and SCC. Pasture ALA, SFA, n-3, n-6/n-3 and PUFA/MUFA concentration did not differ across the study period. Linoleic acid was highest in the second phase which coincides with mid lactation in cows (P<0.001). Highest moisture content coincided with the least fat free dry matter content in early lactation (P<0.001). Significantly high fat content was observed in late lactation than in early lactation. Highest butyric, caproic, linoleic, n-6 and PUFA were observed for Friesian cows. All other fatty acids ratios were not significantly different among different genotypes. Highest CLA, ALA, LA, SFA, PUFA, n-6, and n-3 and atherogenicity index were observed in early lactation whereas desaturase activity indices were highest in late lactation. Strong positive correlations were observed among milk vaccenic, ALA, LA and CLA concentrations. Inverse relationships were observed between SFA and long chain fatty acids. It can be concluded, it may be of advantage to consume milk from early stage of lactation poses a lower risk to coronary diseases and are much safer to consume.
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Smith, Cornel. "The effect of preserving liver tissue in formalin on the concentration of trace minerals in the liver." Diss., 2002. http://hdl.handle.net/2263/27032.

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Dill, Thomas O. "Effect of Zinc, Copper and Selenium supplementation on the humoral immune response of weaned beef steers." Thesis, 1991. http://hdl.handle.net/1957/37102.

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Two studies were conducted to determine the effects of zinc (Zn), copper (Cu) and/or selenium (Se) on the humoral immune response of weaned steers fed diets deficient in these minerals. Steers were bled weekly for eight weeks to measure plasma mineral levels. Humoral immune response was measured as antibody response to Keyhole limpet hemocyanin (KLH) over seven weeks of the trials. Steers were injected with 0.5 ml KLH vaccine on weeks 2 and 5 of the Zn study. Ten steers (5 per treatment) were randomly assigned to either a Zn supplemented (z), 3.25 ml injectable zinc-oxide suspension (100 mg/ml oil) or a control (c) treatment. Plasma Zn was maintained at higher (P<.05) levels in supplemented steers from week 3 through week 8. Humoral immune response was not different (P>.10) between treatments. In 1988, 20 steers were stratified by weaning weight and randomly assigned to one of four treatments: 1) Injectable Se 1 ml Mu-Se/ 90.9 kg body weight, 2) Injectable Molycu 2 ml, 3) control, or 4) Se + Cu. Plasma Cu was higher (P<.05) in treatments 2 and 4 from week 2 through 8. Steers were injected with 0.5 ml of KLH vaccine on weeks 2 and 6. Immune response was not different (P>.10) between Cu supplemented steers and other treatments. Plasma Se was higher (P<.05) in treatment 1 as compared to 2 and 3, but not different (P>.10) from 4. Immune response was highest (P<.05) in treatment 1 with others not different(P>.10). In 1990, a second trial was conducted with 48 steers stratified by weight and randomly assigned to one of the same four treatments. Plasma Cu was higher (P<.05) on week 3 for both groups receiving Cu. Plasma Se was higher (P<.05) on weeks 2 through 5 for both groups receiving Se. Humoral immune response was higher (P<.05) on weeks 7 and 8 for both groups receiving Se. Humoral immune response was uneffected by Zn status of weaned beef steers. Selenium had a positive effect and Cu had no effect on humoral immune response of weaned beef steers. Copper also tended (P=.07) to reduce the positive response from Se.
Graduation date: 1991
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Books on the topic "Trace elements in animal nutrition research"

1

Mee, J. F. Trace element supplementation in dairy and suckler cows. Dublin: Teagasc, 1996.

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Gabaldo, Giulio. Vitamins and trace elements in the nutrition of high yield dairy cows. New York, N.Y: Nutrivit Co., 1999.

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Coïc, Yves. Les oligo-éléments en agriculture et élevage: Incidences sur la nutrition humaine. Paris: Institut national de la recherche agronomique, 1989.

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New Zealand Veterinary Association. Sheep and Beef Cattle Society. Trace elements in ruminants: 22nd Sheep and Beef Cattle Seminar, NZVA Conference, Sheraton, Rotorua, June 1992. Palmerston North, N.Z: Veterinary Continuing Education, Massey University, 1992.

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International Symposium on Trace Elements in Man and Animals (8th 1993 Dresden, Germany). Trace elements in man and animals: TEMA 8 : proceedings of the eighth International Symposium on Trace Elements in Man and Animals. Edited by Anke M, Meissner D, and Mills C. F. 1926-. Gersdorf, Germany: Verlag Media Touristik, 1993.

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New Zealand Veterinary Association Sheep and Beef Cattle Society . Seminar. Trace elements in ruminants: Proceedings of the 22nd Sheep and Beef Cattle Seminar, New Zealand Veterinary Association, June, 1992, Rotorua : incorporating the NZVA Conference. Palmerston North (New Zealand): Massey University, 1992.

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Phelan, Paula A. Studies related to the role of trace mineral nutrition and the prevention of joint-ill in lambs. Dublin: University College Dublin, 1995.

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Laboratory tests for the assessment of nutritional status. 2nd ed. Boca Raton: CRC Press, 1999.

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Conference, International Society for Trace Element Research in Humans. Proceedings of the trace elements in diet, nutrition, and health--essentiality and toxicity: A joint conference constituting the VIIIth Conference of the International Society for Trace Element Research in Humans (ISTERH), IXth Conference of the Nordic Trace Element Society (NTES), VIth Conference of the Hellenic Trce Element Society (HTES) : Hersonissos, Crete-Greece, October 21-26, 2007, Creta Maris Conference Center. [New York?]: Springer, 2009.

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Corah, Larry R. Forage analyses from cow/calf herds in 18 states: Beef CHAPA, cow/calf health & productivity audit. Fort Collins, CO: USDA:APHIS:VS, Centers for Epidemiology and Animal Health, Attn. NAHMS, 1996.

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Book chapters on the topic "Trace elements in animal nutrition research"

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Tuhy, Łukasz, Agnieszka Dmytryk, Mateusz Samoraj, and Katarzyna Chojnacka. "Trace Elements in Animal Nutrition." In Recent Advances in Trace Elements, 319–37. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119133780.ch16.

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Miller, Elwyn R., Xingen Lei, and Duane E. Ullrey. "Trace Elements in Animal Nutrition." In Micronutrients in Agriculture, 593–662. Madison, WI, USA: Soil Science Society of America, 2018. http://dx.doi.org/10.2136/sssabookser4.2ed.c16.

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Dryden, Gordon McL. "Nutrients and important feed constituents and their functions." In Fundamentals of applied animal nutrition, 1–12. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781786394453.0001.

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Abstract This chapter describes the characteristics of animal feed that make them a valuable source of proteins, carbohydrates, minerals, vitamins, trace elements and other nutrients, as well as how animals use these nutrients, nutrition physiology, production responses to feeding and nutritional disorders.
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Dandeniya, Warshi S., and Serena Caucci. "Composting in Sri Lanka: Policies, Practices, Challenges, and Emerging Concerns." In Organic Waste Composting through Nexus Thinking, 61–89. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36283-6_4.

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AbstractCompost is a widely accepted organic fertiliser throughout the world. It is being produced using a wide variety of source materials at household to commercial scale. With the increased population and changes in food consumption pattern tending towards a vegetable- and meat-rich diet, the amount of organic waste generated in urban and peri-urban settings has increased. Many governments promote composting as a process that helps them to reduce the volume of organic waste and recycle nutrients back to croplands. Some examples of organic waste accumulated in large scale include household waste from urban and peri-urban settings, sewage, animal farm waste, agricultural waste from large-scale markets, food debris, and kitchen waste from hotels. The composition of compost varies in a wide range depending on the nature of materials used to produce it. The safety concerns related to compost also vary along the same line. The quality of compost has become a subjective term that means different aspects to different bodies due to a lack of commonly agreed standards to regulate the composting process and the final product itself. Recent research findings indicate that compost can serve as a carrier of potentially toxic trace elements, organic pollutants, and determinants of antimicrobial resistance to the environment and along the food chain. Producing good-quality compost safe to human health and the environment at large has become a challenge that should be addressed at various levels: from production to policymaking. This chapter discusses some of the major challenges faced in Sri Lanka with compost making. To prepare the background for this discussion, information on the policies and current practices of nutrient management in Sri Lanka is also presented. The context may be applicable to many other developing countries in the tropics.
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SMITH, J. CECIL. "Methods of Trace Element Research." In Trace Elements in Human and Animal Nutrition, 21–56. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-08-092468-7.50006-5.

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MCDOWELL, L. "Chromium, Newly Discovered and Other Trace Elements." In Minerals in Animal and Human Nutrition, 497–521. Elsevier, 2003. http://dx.doi.org/10.1016/b978-0-444-51367-0.50019-2.

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WOLF, WAYNE R. "Quality Assurance for Trace Element Analysis." In Trace Elements in Human and Animal Nutrition, 57–78. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-08-092468-7.50007-7.

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Flynn, Albert. "Minerals and Trace Elements in Milk." In Advances in Food and Nutrition Research, 209–52. Elsevier, 1992. http://dx.doi.org/10.1016/s1043-4526(08)60106-0.

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"Contributors." In Trace Elements in Human and Animal Nutrition, ix—x. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-08-092468-7.50003-x.

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MERTZ, WALTER. "Preface." In Trace Elements in Human and Animal Nutrition, xi—xii. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-08-092468-7.50004-1.

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Conference papers on the topic "Trace elements in animal nutrition research"

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Tikhomirova, N. A., M. R. Beibulatov, N. A. Urdenko, and R. A. Buival. "RATIONAL APPLICATION OF FOLIAR DRESSING BASED ON AGROCHEMICALS TO INCREASE THE PRODUCTIVITY OF GRAPE PLANTATIONS." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS Volume 2. DSTU-Print, 2020. http://dx.doi.org/10.23947/interagro.2020.2.208-212.

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A study of the influence of foliar top dressing based on agrochemicals made it possible to establish a close correlation between the need of plants for elements of mineral nutrition and the total biological productivity of the grape bush. Trace elements contributed to the accelerated development of plants, increase stress resistance to adverse environmental conditions, increase plant immunity. As a result of the research, the optimal combination of foliar top dressing based on agrochemicals was revealed, which provides high agrobiological and economic indicators for the studied grape varieties with systemic use.
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