Linseed oils with different fatty acid patterns in the diet of broiler chickens
2006
Zelenka, J.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Agronomicka Fakulta) E-mail:[email protected] | Schneiderova, D.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Agronomicka Fakulta) | Mrkvicova, E.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Agronomicka Fakulta)
The effect of 1, 3, 5 or 7% of linseed oil on the performance of broiler chickens and nutrient concentrations in their meat was studied. Oils from the linseed cultivar Atalante with a high content of alpha-linolenic acid or oils from the cultivar Lola with a predominating content of linoleic acid were tested. The diets were formulated to maintain a constant energy/protein ratio. Weight gains were significantly higher and feed consumption per weight unit significantly lower in the groups receiving 5% and 7% of oils than in the two other groups. Protein concentration in breast meat was lower in the group with 7% than in the groups with 1% and 5% of oils. The values of ether extract were always significantly higher and those of protein conc. significantly lower in thigh than in breast meat. There were no significant differences in the studied variables between the groups receiving different levels of n-6 and n-3 polyunsaturated fatty acids.
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