Background:

Liquid vinasse (LV) has probiotic properties and low pH. It is fed to animals as a solution to the disposal problem of this by-product.

Objective:

To evaluate the effects of increasing dietary levels of LV on growing performance, egg quality and economic viability for Japanese quails.

Methods:

One hundred sixty Japanese quails were included in a randomized study with five dietary treatments and four replicates per treatment. The treatments consisted of adding 0, 2.5, 5, 7.5, or 10% LV to a commercial quail feed for 84 d.

Results:

The LV inclusion resulted in a linear decrease in daily intake of dry matter (DM), crude protein (CP), gross energy, calcium, phosphorus, and in the feed conversion ratio. However, it resulted in a linear increase in egg-specific weight, eggshell weight, CP content in the DM, and a quadratic change in the ether extract content of the egg. The price per dozen eggs decreased linearly with the inclusion of LV.

Conclusion:

The best results were obtained by adding 10% LV, which made egg production more profitable.

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