The effect of the heat processing of soybean seed on the metabolism of its selenium in lambs

Mynhardt, H.; Ryssen, J.B.J. van; Coertze, R.J.

doi:10.1016/j.anifeedsci.2005.10.004

Cited by 9 publications

(5 citation statements)

References 27 publications

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“…Specifically, ruminal microbes incorporate dietary Se to form their protein and cell wall component in the form of SeMet [141], which is capable of protecting cell membranes against oxidative damage because of its high ROS scavenging capacity [142]. In line, ruminal microbial concentration of Se increased following Se dietary supplementation in sheep fed a purified diet low in Se [76,113,133]. In another study in sheep, total Se absorption and GSH-Px activity of ruminal bacteria and protozoa significantly increased in response to dietary Se (0.4 mg/kg DM) [29].…”

Section: Discussionmentioning

confidence: 99%

“…Diets used in eight studies were total mixed ration [24,69,74,77,78,80,94,98]; grass was used in three studies [25,29,92] while diets in the rest of the studies comprised concentrate feed mixture and roughage [26,73,75,76,79,[81][82][83][84][85][86][87][88][89][90][91][95][96][97][99][100][101][102][103][104][105][106]. Positive effects of Se supplementation on fermentation were noted in animals receiving diets low in Se [76,113,133]. Therefore, the effects of supplementary Se can be masked by dietary sufficiency of Se in the ration.…”

Section: Discussionmentioning

confidence: 99%

“…Rumen bacterial species that incorporate Se in their structure mainly include Butyvibrio fibrisolvens, Selenomonas ruminantium, Streptococus sp., Lactobacillus sp., and Prevotella ruminicola [71]. Se intake into rumen bacteria in sheep receiving unprocessed soy, as a source of intact organic Se, was 5-fold higher than in sheep receiving heat-treated soy, which is low in its content of Se [113]. In ruminants, Se supplementation decreased the abundance of Prevotella ruminicola [26,77,78], which metabolize Se into elemental forms that are inaccessible to the host animals [71].…”

Section: Mechanism Of Action Of Se In Ruminal Fermentationmentioning

confidence: 99%

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Effects of Selenium Supplementation on Rumen Microbiota, Rumen Fermentation, and Apparent Nutrient Digestibility of Ruminant Animals: A Review

et al. 2021

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Enzymes excreted by rumen microbiome facilitate the conversion of ingested plant materials into major nutrients (e.g., volatile fatty acids (VFA) and microbial proteins) required for animal growth. Diet, animal age, and health affect the structure of the rumen microbial community. Pathogenic organisms in the rumen negatively affect fermentation processes in favor of energy loss and animal deprivation of nutrients in ingested feed. Drawing from the ban on antibiotic use during the last decade, the livestock industry has been focused on increasing rumen microbial nutrient supply to ruminants through the use of natural supplements that are capable of promoting the activity of beneficial rumen microflora. Selenium (Se) is a trace mineral commonly used as a supplement to regulate animal metabolism. However, a clear understanding of its effects on rumen microbial composition and rumen fermentation is not available. This review summarized the available literature for the effects of Se on specific rumen microorganisms along with consequences for rumen fermentation and digestibility. Some positive effects on total VFA, the molar proportion of propionate, acetate to propionate ratio, ruminal NH3-N, pH, enzymatic activity, ruminal microbiome composition, and digestibility were recorded. Because Se nanoparticles (SeNPs) were more effective than other forms of Se, more studies are needed to compare the effectiveness of synthetic SeNPs and lactic acid bacteria enriched with sodium selenite as a biological source of SeNPs and probiotics. Future studies also need to evaluate the effect of dietary Se on methane emissions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Mechanism Of Action Of Se In Ruminal Fermentationmentioning

confidence: 99%

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Effects of Selenium Supplementation on Rumen Microbiota, Rumen Fermentation, and Apparent Nutrient Digestibility of Ruminant Animals: A Review

et al. 2021

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“…Pure cultures of Selenomonas ruminantium and Butyvibrio fibrisolvens incorporate selenium into selenoamino acids, while Prevotella ruminicola metabolizes selenium compounds into an elemental form—inaccessible to a higher organisms [ 6 ]. Studies performed on sheep have shown [ 7 ] that lower selenium absorption in animals fed green fodder is associated with the presence of the latter microorganism, while in the high-energy diet (concentrated feed) in the rumen, Selenomonas ruminantium bacteria predominate, increasing the bioavailability of the collected element.…”

Section: Introductionmentioning

confidence: 99%

The Efficacy of a Long-Acting Injectable Selenium Preparation Administered to Pregnant Ewes and Lambs

Milewski

Sobiech

Błażejak-Grabowska

et al. 2021

Animals

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The aim of this study was to evaluate the effects of a long-acting selenium (Se) preparation administered to sheep. The experiment was conducted on 30 dams and 36 lambs divided into three equal groups of 10 dams and 12 lambs each: Control—C, and two experimental groups—E (Se administered to pregnant ewes) and EI (Se administered directly to lambs after the colostral period). The Se preparation (Barium Selenate Injection, BVP Animal Care, 50 mg/mL) was administered by injection at 1 mL/50 kg (1 mg Se/kg) body weight (BW) to group E ewes in the third month of pregnancy (between 70 and 90 days) and to group EI lambs between 4 and 7 days of age. The following parameters were determined: Se concentration in the blood of ewes, milk yield, milk composition, Se concentration in milk; hematological, biochemical, and immunological parameters and Se concentration in the blood of lambs; growth rate and in vivo measurements of lean meat and fat content in lambs. Barium selenate significantly improved the Se status of dams and lambs, regardless of whether it was administered to pregnant ewes or directly to lambs in the first week of their life. The milk of ewes receiving the Se preparation was characterized by higher concentrations of fat and dry matter. The Se preparation induced significant changes in immunological parameters, thus enhancing defense mechanisms in lambs. The Se preparation exerted more stimulatory effects on humoral and cellular immune responses when administered directly to lambs after the colostral period (group EI) than to pregnant ewes (group E). The results of this study indicate that the long-acting Se preparation delivers benefits to sheep by boosting their immunity and, therefore, improving performance.

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“…Panev et al (2013) found that when supplementing organic or inorganic forms of Se, the ratio of Se in biomass and in rumen fluid is similar. The microorganisms in the rumen would influence Se-containing proteins if the protein is susceptible to microbial degradation and this could change the bioavailability of the supplied Se (Mynhardt et al 2005). Rumen microbial fermentation can influence the final absorption of Se by changing Se form.…”

Section: Discussionmentioning

confidence: 99%

Effect of sodium selenite or lactate-protein selenium complex supplementation on selenium status in goat kids

Pechová

Antošová²,

Pavlata

et al. 2015

CZECH J ANIM SCI

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ABSTRACT:The aim of the study was to compare the effect of selenium (Se) supplementation in organic (lactate-protein complex) or inorganic (sodium selenite) forms on Se concentrations in the blood and organs of goat kids. The experiment involved nineteen male goat kids divided into three groups: C, Se-I, and Se-O. Control group C (n = 5) was without Se supplementation, group Se-I (n = 7) received sodium selenite supplement (0.30 mg Se per animal/day), and group Se-O (n = 7) received lactate-protein selenium complex (0.28 mg Se per animal/day). The supplementation started on the day of weaning and continued for 13 weeks till the day of slaughter. Blood samples for determination of Se concentration and glutathione peroxidase activity were collected on the day of weaning and during weeks 4, 8, and 13 thereafter. Samples of liver tissue, spleen, kidneys, lungs, heart, tongue, diaphragm, shoulder, back, and thigh muscles were taken immediately after slaughter. Significantly higher concentration of Se in group Se-O in comparison with group C was found in thigh muscles (110.4 vs 71.0 µg/kg, P ≤ 0.01), shoulder (105.0 vs 67.2 µg/kg, P ≤ 0.01), back (102.9 vs 61.7 µg/kg, P ≤ 0.01), and heart (180.8 vs 116.7 µg/kg, P ≤ 0.01). Significantly higher concentration of Se in group Se-I in comparison with group C was found in shoulder (83.2 vs 67.2 µg/kg, P ≤ 0.01) and diaphragm (93.6 vs 72.8 µg/kg, P ≤ 0.01). The comparison of the groups Se-I and Se-O showed significantly higher Se concentrations in thigh muscles, heart, back, shoulder, and lungs in group Se-O. Mean Se concentration in tissues of experimental groups was 125.8% in Se-O group and 110.7% in Se-I group in comparison with group C. Our results are suggesting that supplementation of Se in the form of lactate-protein complex is more efficient in comparison with sodium selenite.

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The effect of the heat processing of soybean seed on the metabolism of its selenium in lambs

Cited by 9 publications

References 27 publications

Effects of Selenium Supplementation on Rumen Microbiota, Rumen Fermentation, and Apparent Nutrient Digestibility of Ruminant Animals: A Review

Effects of Selenium Supplementation on Rumen Microbiota, Rumen Fermentation, and Apparent Nutrient Digestibility of Ruminant Animals: A Review

The Efficacy of a Long-Acting Injectable Selenium Preparation Administered to Pregnant Ewes and Lambs

Effect of sodium selenite or lactate-protein selenium complex supplementation on selenium status in goat kids

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