The dietary inclusion of Portulaca oleracea to the diet of laying hens increases the n-3 fatty acids content and reduces the cholesterol content in the egg yolk
The effect of n-3 polyunsaturated fatty acids (PUFA)-enriched diet on yolk fatty acid profile and cholesterol content was evaluated. Dried Portulaca oleracea (purslane: PO diet) was added to a commercial diet (C diet) at 20% of inclusion level. The effect of the supplemented diet was compared to tha...
Saved in:
Published in | Italian journal of animal science Vol. 4; no. sup3; pp. 157 - 159 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Taylor & Francis
01.01.2005
Taylor & Francis Group |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The effect of n-3 polyunsaturated fatty acids (PUFA)-enriched diet on yolk fatty acid profile and cholesterol content was evaluated. Dried Portulaca oleracea (purslane: PO diet) was added to a commercial diet (C diet) at 20% of inclusion level. The effect of the supplemented diet was compared to that of C diet. Twenty-six laying hens were fed ad libitum for 21 days with the two diets, supplemented also with 300 mg alfa-tocopherol acetate/kg. Eggs were collected and then the fatty acids (FA) profile and the cholesterol content were analysed. The PO diet significantly reduced the saturated FA content (P0.05) and increased that of the polyunsaturated FA (PUFA): 18:2 n-6 (P0.001), 18:3 n-3 (P0.001) and 22:6 n-3 (DHA; P0.01). Both n-6 and n-3 PUFA significantly increased with the PO diet and the n-6/n-3 ratio was improved (10.4 vs 11.3; P0.05)
[E´ stato valutato l´effetto di una dieta arricchita di acidi grassi polinsaturi (PUFA) n-3 sul profilo degli acidi grassi e il contenuto di colesterolo del tuorlo. E´ stata aggiunta Portulaca oleracea (porcellana: dieta PO) essiccata a una dieta commerciale (dieta C) nella misura del 20%. L´effetto della dieta integrata è stato confrontato con quello della dieta C. Ventisei galline ovaiole sono state alimentate ad libitum per 21 giorni con le due diete, integrate anche con 300 mg di alfa-tocoferol acetato/kg. Le uova sono state raccolte e sono stati determinati il profilo degli acidi grassi (FA) e il contenuto di colesterolo. La dieta PO ha determinato una riduzione significativa del contenuto di FA saturi (P0,05) e un aumento di quello di FA polinsaturi (PUFA): 18:2 n-6 (P0,001), 18:3 n-3 (P0,001) e 22:6 n-3 (DHA; P0,01). Sia i PUFA n-6, sia gli n-3 sono aumentati significativamente con la dieta PO e il rapporto n-6/n-3 è risultato migliorato (10,4 vs 11,3; P0,05).] |
---|---|
Bibliography: | Q55 3 tables 6 ref. Q04 2006601499 L02 |
ISSN: | 1594-4077 1828-051X 1828-051X |
DOI: | 10.4081/ijas.2005.3s.157 |