Effect of Essential Fatty Acid Proportion in Feed on Productive and Reproductive Performance of Japanese Quail (Coturnix coturnix japonica)

ABSTRACT

This investigation was carried out to determine the effect of Essential Fatty Acids proportion (EFAs [n-6, n-3]) in feed through the mixture of soy, olive, canola or chia oil on EFA profile in eggs as well as productive and reproductive performance of Japanese quail. We used 120 quail from 7 to 22 weeks of age, in 15 cages in groups of 6 females and 2 males assigned according to the completely randomized design to 3 treatments with 5 replicates. The treatments were n-6n-3 proportions 101 (control), 41 and 11. FA profile in yolk, feed intake, laying rate, egg weight, fertility, hatchability, and embryonic mortality were measured. In the egg yolk, n-6 content was similar in the proportions (p>0.05), while n-3 content increased (p 0.01) as n-6n-3 ratio decreased in the feed. Feed consumption per quail was similar between treatments (p>0.05). In 41 and 11 proportion laying percentage was greater, but egg weight was lower (p 0.01). Fertility and hatchability were similar between proportions n-6, n-3 (p>0.68). Early and total embryonic mortality was lower in 101 and 41 proportion (p 0.01); while intermediate and late mortality was similar (p>0.30). The results of the experiment indicate that the mixture of soy, olive, canola or chia oil, to obtain n-6n-3 proportion of 11, 41 and 101 does not modify feed consumption, laying rate, egg weight, fertility, and hatchability; but, 41 and 101 proportions favor a lower embryonic mortality.