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Uravnavanje hranilne vrednosti jajc s prehrano nesnic = Modeling the nutritive value of eggs trough hen nutrtitionSalobir, Karl ...V raziskavi smo na 24 individualno vhlevljenih kokoših nesnicah proučevalli vpliv sočasnega dodatks [omega]-3 maščobnih kislin (m. k.), vitamnina E, cinka, joda in selena vpliva na sestavo jajc, oz. ... ali je mogoče na ta način hranilno vrednost jajca še izboljšati. Živali smo razdelili v štiri skupine, ki so dobile v krmi različne dodatke (na kg): Kontrola (brez dodtka pripravka z [omega]-3 m. k.; 30 mg Zn kot Zn SO[dol]4; 0.03 mg I; 0,175 Se kot Na-selenit), S-1 (30 g pripravka z [omega]-3 m. k.; 30 mg Zn kot ZnSO[dol]4;0,03 mg I; 0,175 Se kot Na-selenit), S-2 (30 g pripravka z [omega]-3 m. k.; 30 mg Zn kot Zn-mentionin; 0,03 mg I; 0,175 Se kot Na-selenit) in S-3 (30 g pripravka z [omega]-3 m. k.; 80 mg Zn kot Zn-metionin; 0,80 mg I; 0,175 Se kot Na-selenit + 0,0025 Se kot Bioselen; 200 mg vit. E). Obogatitev krme z [omega]-3 m. k. je v vseh skupinah enako spremenila m. k. sestavo jajčnih lipidov. Nekoliko se je povečal delež nasičenih in večkrat nenasičenih m. k., zmanjšal pa delež enkrat nenasičenih. Kar 5-krat se je povečal delež skupnih [omega]-3 m. k. Največji vpliv je imel dodatek na povečanje deleža dolgoverižnih m. k., predvsem eikozapentaenojske, še bolj pa dokozaheksaenojske m. k. Na koncentracijo cinkav jajcih ni vplivala niti povečana koncentracija cinka v krmi, niti oblika cinka. Koncentracija selena v jajcih se zaradi povečane koncentracije v krmi ni spremenila. Povečanja oskrba z vit. E je povečala koncentracijo vit. E v jajcu za 2,2 krat, povečana oskrba z jodom pa je povečala koncentracijo joda v celotnem jajcu in v rumenjaku za 4,2- krat, v beljaku pa za 5,2-krat. Raziskava kaže, da je koncentracijo [omega]-3 m. k., vit. E in joda v jajcih mogoče sočasno povečati in tako izboljšati hranilno vrednost jajc.Source: Zbornik predavanj 9. posvetovanja o prehrani domačih živali "Zadravčevi-Erjavčevi dnevi", Radenci, 9. in 10. November 2000 = Proceedings of the conference on nutrition of domestic animals "Zadravec-Erjavec days" (Str. 102-114e)Type of material - conference contributionPublish date - 2000Language - slovenianCOBISS.SI-ID - 1049224
Author
Salobir, Karl |
Savski, Brigita |
Stibilj, Vekoslava |
Dermelj, Marjan |
Salobir, Janez
Topics
kokoši |
nesnice |
prehrana živali |
jajca |
hranilna vrednost
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Database name | Field | Year |
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Salobir, Karl | 00396 |
Stibilj, Vekoslava | 01873 |
Dermelj, Marjan | 02309 |
Salobir, Janez | 00886 |
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