Modulation of plasma levels and percentages of incorporation of ω-3 PUFAs in egg yolk under the influence of supplementation sources rich in omega 3 to diet of laying


Autoria(s): Pita, Maria Carolina Gonçalves; Carvalho, Paulo Reis de; Piber Neto, Eduardo; Mendonça Júnior, Cássio Xavier de; Pita, Maria Carolina Gonçalves
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

03/02/2014

03/02/2014

2011

Resumo

Hundred forty-four Shaver White laying hens were used over a 4 week experimental period to investigate the effect of 3% of soybean oil, corn oil (MIL), canola oil, flaxseed oil (LIN), salmon oil (SAL) or tuna and sardine oil (SR/AT) added to the diets, upon the fatty acid egg yolk composition, blood plasma levels and incorporation time of each fatty acid into the egg yolk. Hens were allocated into 72 cages and the experimental design was a 6 x 6 randomized factorial model. Hens fed 3% of different oils, responded with increased polyunsaturated fatty acids omega 3 (ω-3 PUFAs), except for corn oil. The addition of flaxseed, soybean or corn oil into the diet increased the PUFAs levels into the egg yolk and in the blood plasma. Adding tuna and sardine oil into the diet increased the concentration of yolk saturated fatty acids. The levels of ω-3 PUFAs were increased in the tuna and sardine oil treatment, while the flaxseed oil increased the plasma fatty acids. The deposition of 349.28 mg/yolk of a-linolenic fatty acids (ALA) was higher in the group fed LIN, while the higher equal to 157.13 mg DHA/yolk was observed in group SR/AT. In the plasma, deposition increased from 0.33% (MIL) for 6.29% ALA (LIN), while that of DHA increase of 0.47% (MIL) for 4.24% (SAL) and 4.48% (SR/AT) and of 0.98% (MIL) for 6.14% (SR/AT) and 8.44% (LIN) of ω-3 PUFAs. The percentage of EPA into the yolk and plasma was higher for the hens fed 3% tuna and sardine oil diet, as well as the levels of yolk DHA. The concentration of DHA into the plasma was higher for the salmon and tuna/sardine oil treatments. The PUFAs yolk decreased during the first eight days of experiment, while the ω-3 PUFAs increased during the same period. The concentration of ALA increased until ten days of experiment, while the percentage of EPA and DHA increased up to the eighth experimental day

Identificador

Pakistan Journal of Nutrition, Lasani, v.10, n.8, p.735-754, 2011

1680-5194

http://www.producao.usp.br/handle/BDPI/43925

10.3923/pjn.2011.735.754

http://dx.doi.org/10.3923/pjn.2011.735.754

Idioma(s)

eng

Publicador

ANSInet

Lasani

Relação

Pakistan Journal of Nutrition

Direitos

openAccess

Copyright ANSInet

Palavras-Chave #DHA #Fish oil #Omega-3 #Plasma fatty acids #Eggs #Yolks #PRODUÇÃO ANIMAL #NUTRIÇÃO ANIMAL #OVO #ÓLEOS DE PEIXE
Tipo

article

original article

publishedVersion