Effect of the fattening diet on the development of the fatty acid profile in rabbits from weaning
2009
Carrilho, M.C. | López, M. | Campo, M.M.
The effect of the fattening diet on the intramuscular fatty acid composition was studied on a total of 96 hybrid rabbits. Animals were slaughtered at weaning, at 1.6kg after the consumption for three weeks of various diets containing low (14.28%), medium (18.04%) and high (20.48%) fibre content, and at 2 and 2.30kg after the consumption of a common non-medicated concentrate, as occurs commercially. Weight had an effect on the percentage of intramuscular fat that decreased as weight increased, as well as on the percentage of most fatty acids except for saturated fatty acids. The percentage of monounsaturated fatty acids increased from weaning whereas polyunsaturated fatty acids subsequently decreased due to a reduction of n-6 fatty acids. In general, diet affected the fatty acid profile in rabbits slaughtered at 1.6kg, which the rabbits were having exclusively one of the three fattening diets. The finishing common diet seems to reduce most differences due to the growing diet which, if rich in fibre, would produce a more favourable final n-6/n-3 ratio.
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