Grasas y Aceites, Vol 56, No 2 (2005)

The tuna oil as ω-3 fatty acids source for egg of laying hens


https://doi.org/10.3989/gya.2005.v56.i2.124

C. Castillo-Badillo
Dpto. de Zootecnia, Universidad Autónoma Chapingo, Mexico

J. L. Vázquez-Valladolid
Dpto. de Zootecnia, Universidad Autónoma Chapingo, Mexico

M. González-Alcorta
Dpto. de Zootecnia, Universidad Autónoma Chapingo, Mexico

E. Morales-Barrera
Dpto. de Producción Agrícola y Animal. Universidad Autónoma Metropolitana Unidad Xochimilco, Mexico

R. M. Castillo-Domínguez
Dpto. de Nutrición Animal, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico

S. Carrillo-Domínguez
Dpto. de Nutrición Animal, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico

Abstract


Fish oils are a source of polyunsaturated omega 3 fatty acids (AG ω3), mainly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which supply many benefits to human health. Tuna oil was used as a source of marine 3ω FA to enrich eggs by supplementing the diet of egg-laying hens with tuna oil. One hundred and twenty White Leghorn hens of 90 weeks old were allocated on three treatments with four replicates each, on a completely random design. Treatments consisted of adding 1 % and 2 % of tuna oil to the diets. The total lipids and ω3FA of the eggs were determined. The egg-laying hen dietary tuna oil supplement (1 and 2 %) enriched eggs with 300 % more EPA (0.40, 1.37, 1.54 mg/g lipids) and DHA (7.90, 24.67, 24.50 mg/g lipids) versus the control egg . The ω6:ω3 ratio decreased ( 11.4:1, 3.8:1, 3.0:1) as dietary tuna oil increased. There were no differences (p>0.05) among treatments in productive performance and egg quality, except egg weight which decreased with the tuna oil.

Keywords


Enriched Eggs; Laying hens; Omega-3 fatty acids; Tuna oil

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