1. elektronické vydání 1 online zdroj (200 stran)
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The purpose of the present study was to evaluate the effects of soybean selenium proteinate on Se tissue retention and meat quality in pigs. In group A (n = 11) the mixtures were supplemented with soybean selenium proteinate, in group B (n = 11) with sodium selenite and in group C (n = 11) with Se-enriched yeast (0.3 mg Se per kg in all groups). The use of soybean selenium proteinate resulted in lower retention of Se in tissues (liver, heart, muscle) compared to Se-enriched yeast. Selenium concentrations in tissues achieved by soybean selenium proteinate and sodium selenite were comparable. No differences in serum Se, serum GSH-Px and meat quality traits were found among the groups.
- MeSH
- dieta veterinární MeSH
- fyziologie výživy zvířat MeSH
- Glycine max chemie MeSH
- krmivo pro zvířata MeSH
- maso normy MeSH
- organoselenové sloučeniny chemie farmakologie MeSH
- potravní doplňky MeSH
- prasata MeSH
- proteiny ze sójových bobů chemie farmakologie MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- klinické zkoušky kontrolované MeSH
- práce podpořená grantem MeSH
OBJECTIVES: The aim of this trial was to determine selenium status in pure bred duroc sows and their progeny and to compare it to Czech Large White x Landrace breed. DESIGN: The pregnant duroc sows (n=12) and pregnant Czech Large White x Landrace sows (n=12) were fed identical diets supplemented with sodium selenite. RESULTS: During lactation significantly higher serum Se concentrations (p<0.001) were found in duroc piglets. Also significantly higher serum GSH-Px activities (p<0.001) were found in duroc sows and piglets. No differences in concentrations of Se in colostrums and milk were found between the two breeds. CONCLUSION: Our findings support the hypothesis that there may be breed differences in indices of selenium status in pigs.
- MeSH
- dieta MeSH
- druhová specificita MeSH
- játra chemie MeSH
- kolostrum chemie MeSH
- kosterní svaly chemie MeSH
- mléko chemie MeSH
- myokard chemie MeSH
- potravní doplňky MeSH
- prasata metabolismus MeSH
- selen aplikace a dávkování analýza krev MeSH
- těhotenství MeSH
- zvířata MeSH
- Check Tag
- těhotenství MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
The aim of this paper is to review current knowledge of the significance of pork as a source of Se for human consumption, and to evaluate the selenium content in pork produced in the Czech Republic. Selenium has an important role in human health. Pork could possibly be an important source of Se for the human diet. The Se content in meat can be increased by a higher dietary intake of selenium in animal feed. The magnitude of this increase is higher when organic Se from Se-enriched yeast is ingested. Selenium intoxication in pigs occurs only when very high Se concentrations are used in their diet (more than 5 mg/kg of Se). Organic Se sources produce fewer clinical signs of high toxicity than inorganic sodium selenite. Organic Se does not have a negative effect on meat quality. Altogether, 135 pork samples from 9 different herds in the Czech Republic were collected and analyzed for Se content. The average selenium content found in pork in our study was 87.10 microg/kg. Because the average annual consumption of pork in the Czech Republic is 42.0 kg per person, the annual selenium intake from pork represents 18.2% of the minimum yearly requirement for humans. The results of our study show that pork contributes significantly to the selenium intake of the human population in the Czech Republic.
