Proportions between polyunsaturated fatty acids in conventional commercial and enriched eggs with omega-3/Proporcoes entre acidos graxos poliinsaturados em ovos comerciais convencionais e enriquecidos com omega-3

• Published in: Ciência rural 2011-04, Vol.41 (4), p.706
• Main Authors: Cedro, Thaiz Marinho Magalhaes, Calixto, Ligia Fatima Lima, Gaspar, Arlene, Agostinho, Tarcisio Simoes Pereira
• Format: Article
• Language: Spanish
• Subjects: Linolenic acids; Omega 6 fatty acids; Saturated fatty acids; Soybeans
• ISSN: 0103-8478

An experiment was carried out to compare the proportions of fatty acids in conventional and enriched [omega]-3 commercial yolk eggs. In group 1, 432 birds were fed throughout productive life with basal diet of corn and soybean meal (production of conventional eggs) and in group 2, the others hens, from the 22nd week-old, was added to the basic diet, 1.5% of substrate of marine algae and 1.8% of fish oil (production of designer [omega]-3 eggs). There were randomly collected 180 eggs from each group of hens and those distributed in complete randomized blocks design, considering one egg as a replicate. The proportions between unsaturated/ saturated fatty acids, polyunsaturated [omega]-6/[omega]-3 series, linoleic/alpha-linolenic acid, arachidonic/docosahexaenoic eggs enriched with [omega]-3 were lower than conventional eggs. The interrelationships between fatty acid studied of the [omega]-3 enriched eggs were lower than conventional eggs, and, accordingly, within the ideal threshold value for fat consumption by humans. Key words: algae marine, table eggs, relationship between fatty acids. Um experimento foi realizado para comparar as proporcoes entre acidos graxos (AG) em gemas de ovos comerciais convencionais e enriquecidos com omega-3 ([omega]-3). No grupo 1, foram alimentadas 432 aves durante toda vida produtiva com racao a base de milho e farelo de soja (producao de ovos convencionais) e, no grupo 2, a partir da 22a semana de idade, as aves foram alimentadas com racao contendo 1,5% de substrato de algas marinhas e 1,8% de oleo de peixe (producao de ovos enriquecidos com [omega]-3). Coletaram-se aleatoriamente 180 ovos de cada grupo de poedeira e estes distribuidos em delineamento em blocos ao acaso, considerando um ovo como uma repeticao. As relacoes entre acidos graxos insaturados/saturados, poliinsaturados das series [omega]-6/[omega]-3, linoleico/alfa-linolenico, araquidonico/docosahexanoico dos ovos enriquecidos com [omega]-3 foram inferiores a dos ovos convencionais. As proporcoes entre AG estudadas dos ovos enriquecidos com [omega]-3 foram inferiores a dos ovos convencionais, ficando, portanto, dentro do limiar ideal estimado para o consumo de gordura por humanos. Palavras-chave: ovos para consumo, relacao entre acidos graxos, algas marinhas.