Effect of supranutritional and organically bound selenium on performance, carcass characteristics, and selenium distribution in finishing beef steers1

Lawler, Theodore; Taylor, J. B.; Finley, John W.; Caton, J. S.

doi:10.2527/2004.8251488x

Cited by 121 publications

(93 citation statements)

References 24 publications

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“…Regarding the treatments with selenium supplementation, Lawler et al (2004) supplemented selenium in cattle and found no change in fat thickness and marbling of meat, like the results of this experiment.…”

Section: Resultssupporting

confidence: 58%

“…Engle & Spears (2000) found no change in cooling loss or hot carcass weight with supplementation of 20 mg copper/kg of DM; however, these authors also found no reduction in fat thickness. Regarding the treatments with selenium, as the results found in present study, some authors like Lawler et al (2004) and Mahan et al (1999) supplemented selenium and found no change in hot carcass weight in cattle and swine, respectively.…”

Section: Resultsmentioning

confidence: 58%

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Copper and selenium supplementation in the diet of Brangus steers on the nutritional characteristics of meat

et al. 2013

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-Twenty-eight Brangus cattle were used to determine the effect of copper and selenium supplementation on the carcass characteristics, fatty acid composition of the longissimus dorsi muscle and on the copper and selenium concentrations in the liver. The treatments were: no supplementation of copper or selenium; 2 mg Se/kg DM as sodium selenite; 40 mg Cu/kg DM as copper sulfate; and 2 mg Se/kg DM as sodium selenite and 40 mg Cu/kg DM as copper sulfate. The fat thickness, rib eye area and fatty acid composition of the longissimus dorsi muscle were not affected by treatments. There was no effect on carcass yield and cooling loss with the supplementation of copper, selenium or selenium × copper in the levels studied. For the ether extract concentration in the longissimus dorsi muscle, no differences were found according to the treatments with selenium, copper or selenium × copper. The treatments with selenium and selenium × copper showed higher selenium concentrations in the liver than the control and copper treatments. For the copper concentration in the liver, the copper and selenium × copper treatments showed higher values than the control and selenium treatments. Despite the little effect on the meat composition, the results of this experiment demonstrate no interaction between selenium and copper in the levels studied.

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Section: Resultssupporting

confidence: 58%

Section: Resultsmentioning

confidence: 58%

Copper and selenium supplementation in the diet of Brangus steers on the nutritional characteristics of meat

et al. 2013

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“…Therefore, carcass must provide maximum amount of muscle, minimum of bone, and an amount of fat that varies depending on consumer preference. The proximate composition of the beef was similar between treatments and with values similar to those obtained by Lawler et al (2004), Freitas et al (2008), Razook et al (2002), Rubiano et al (2009), Souza et al (2009), and Sestari et al (2012, when working with Nelore cattle. The exception is ether extract content, which was lower, possibly due to the lower energy density of the diets used in this study compared with the aforementioned authors, who aimed at higher weight gain.…”

Section: Discussionsupporting

confidence: 51%

Carcass characteristics and meat evaluation of Nelore cattle subjected to different antioxidant treatments

et al. 2017

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-Forty Nelore cattle were used to evaluate the effects of supplementation with different antioxidants on carcass characteristics and meat quality of feedlot cattle. Animals were fed Brachiaria brizantha hay and subjected to five treatments (control and four antioxidants: zinc, selenium, vitamin E, and selenium + vitamin E). After a 105-day feeding period, cattle were slaughtered. Tissue composition, as well as carcass proximate composition, color, tenderness, pH, and fatty acid profile were evaluated. Analysis of variance was carried out and means compared by Tukey test at 0.05 probability. The group fed selenium showed the lowest muscle amount (66.61 g/100 g) compared with the other antioxidants evaluated. There was no difference among treatments for bone, fat, and comestible portion percentages as well as muscle:bone, muscle: fat, and comestible portion:bone ratios, with mean values of 16.85 g/100 g, 14.70 g/100 g, 82.99 g/100 g, 4.06, 4.85, and 4.95, respectively. Neither brightness, red, or yellow contents of the meat nor carcass pH were affected by treatments. For tenderness and losses during thawing and cooking, there were no differences among treatments, with averages of 6.43 kgf cm 2 , 3.22 g/100 g, and 21.15 g/100 g, respectively. Supplementation of Nelore cattle fed Brachiaria brizantha hay with antioxidants do not influence carcass characteristics or meat quality. However, vitamin E supplementation reduces the levels of omega 3 fatty acid, whereas supplementation with selenium + vitamin E promotes an increase in linoleic and palmitoleic acids and a decrease in myristoleic acid, making the supplementation feasible due to the beneficial effects provided by these acids.

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“…Surai (2006) reported that SeMet is retained in tissue proteins to a greater extent than selenocysteine (SeCys) or Se derived from inorganic forms. A number of studies have detailed the accumulation of Se within the tissues of animals exposed to supranutritional concentrations of organic Se (Lawler et al, 2004;Taylor, 2005) but very little information is available on either the persistency of Se or the distribution of selenised amino acids within the tissues of animals following the withdrawal of diets containing high doses of organic Se. This paper aims to redress this shortfall in information and reports on the concentration of total Se and the proportion of total Se comprised as either SeMet or SeCys in post mortem tissues of lambs following the withdrawal of high-dose SY (HSY) diets.…”

Section: Introductionmentioning

confidence: 99%

Selenium persistency and speciation in the tissues of lambs following the withdrawal of dietary high-dose selenium-enriched yeast

Juniper

Phipps

Ramos-Morales

et al. 2008

Animal

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The objective was to determine the concentration of total selenium (Se) and the proportion of total Se comprised as selenomethionine (SeMet) and selenocysteine (SeCys) in post mortem tissues of lambs in the 6 weeks period following the withdrawal of a diet containing high-dose selenised yeast (HSY), derived from a specific strain of Saccharomyces cerevisae CNCM (Collection Nationale de Culture de Micro-organism) I-3060. Thirty Texel 3 Suffolk lambs used in this study had previously received diets (91 days) containing either HSY (6.30 mg Se per kg dry matter (DM)) or an unsupplemented control (C; 0.13 mg Se per kg DM). Following the period of supplementation, all lambs were then offered a complete pelleted diet, without additional Se (0.15 mg Se per kg DM), for 42 days. At enrolment and 21 and 42 days later, five lambs from each treatment were blood sampled, euthanased and samples of heart, liver, kidney and skeletal muscle (longissimus dorsi and psoas major) tissue were retained. Total Se concentration in whole blood and tissues was significantly (P , 0.001) higher in HSY lambs at all time points that had previously received long-term exposure to high dietary concentrations of SY. The distribution of total Se and the proportions of total Se comprised as SeMet and SeCys differed between tissues, treatment and time points. Total Se was greatest in HSY liver and kidney (22.64 and 18.96 mg Se per kg DM, respectively) and SeCys comprised the greatest proportion of total Se. Conversely, cardiac and skeletal muscle (longissimus dorsi and psoas major) tissues had lower total Se concentration (10.80, 7.02 and 7.82 mg Se per kg DM, respectively) and SeMet was the predominant selenised amino acid. Rates of Se clearance in HSY liver (307 mg Se per day) and kidney (238 mg Se per day) were higher compared with HSY cardiac tissue (120 mg Se per day) and skeletal muscle (20 mg Se per day). In conclusion, differences in Se clearance rates were different between tissue types, reflecting the relative metabolic activity of each tissue, and appear to be dependent on the proportions of total Se comprised as either SeMet or SeCys.

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Effect of supranutritional and organically bound selenium on performance, carcass characteristics, and selenium distribution in finishing beef steers1

Cited by 121 publications

References 24 publications

Copper and selenium supplementation in the diet of Brangus steers on the nutritional characteristics of meat

Copper and selenium supplementation in the diet of Brangus steers on the nutritional characteristics of meat

Carcass characteristics and meat evaluation of Nelore cattle subjected to different antioxidant treatments

Selenium persistency and speciation in the tissues of lambs following the withdrawal of dietary high-dose selenium-enriched yeast

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