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Vpliv stopnje oskrbljenosti piščancev s spojinami magnezija na koncentracijo spojin magnezija, kalcija, fosforja, natrija, cinka, železa in bakra v posameznih tkivih : doktorska disertacija = The effect of supply of magnesium compositions on the concentration of magnesium, calcium, phosphurus, sodium, zink, iron and cooper in different tissues in chickens : dissertation thesisStrelec, VladimirRaziskava obravnava vpliv različnih koncentracij magnezija v krmi na koncentracijo suhe snovi, pepela, magnezija, kalcija, fosforja, kalija, natrija, cinka, železa in bakra v serumu, eritrocitih, ... srcu, mišicah, možganih, kosteh in perju pri 21 in 42 dni starih brojlerskih piščancih. Piščanci šestih skupin so dobivali polsintetično krmo enake osnovne sestave, toda z različno koncentracijo magnezija. Za posamezne skupine je krma vsebovala 150, 300, 600, 1200 in 2100 mg Mg/kg krme. Magnezij je bil dodan kotmagnezijev oksid. Raziskava je pokazala statistično značilne korelacije med posameznimi elementi v vseh tkivih. Pokazala se je tudi statistično visokoznačilna korelacija med koncentracijami magnezija v naslednjih parih tkiv: serum:kost (r=0.55), serum:perje (r=0.56) in kost:perje (r=0.71). Koncentracije magnezija v serumu, kosteh in perju so statistično enakovredni kazalci oskrbljenosti, vendar je perje od njih za kemijske analize najdostopnejše tkivo. Koncentracije magnezija v serumu, kosteh in perju, kalcija v koži in perju ter železa v možganih so odvisne od koncetracije magnezija v krmi in so dobri kazalci oskrbljenosti z magnezijem pri piščancih. Individualne koncentracije magnezija v serumu pod 0.85 mmol/L, v pepelu kosti pod 0.50%, v perju pod 185 mg Mg/kg, ali koncentracije kalcija v koži nad 0.10 g/kg, kalcija v perju nad 0.73 g /kg ali železa v možganih na 0.29 mg/kg kažejo na pomanjkanje magnezija. Primerjava rezultatov z referenčnimi vrednostmi kaže, da so referenčne vrednosti za potrebno koncentracijo magnezija v serumu in kosteh piščancev postavljene prenizko. Patofiziološko pomembna je verjetno verjetno tudi ugotovitev, da je koncentracija natrija v serumu piščancev značilno višja pri skromni oskrbi z magnezijem.Type of material - dissertation ; adult, seriousPublication and manufacture - Domžale : [V. Strelec], 1998Language - slovenianCOBISS.SI-ID - 1476396
Author
Strelec, Vladimir
Other authors
Salobir, Karl
Topics
Piščanci |
Krma |
Magnezij |
Disertacije |
perutninarstvo |
krmljenje |
presnova |
interakcije |
tkiva |
makroelementi |
mikroelementi
Library | Call number – location, accession no. ... | Copy status |
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Faculty of Agriculture and Life Sciences, Maribor | Čitalnica ds 636.5 STRELEC, V. Vpliv IN: 19980843 |
available - reading room |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Strelec, Vladimir | 09467 |
Salobir, Karl | 00396 |
Source: Personal bibliographies
and: SICRIS
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