Efeitos da inclusão do farelo de sementes de jaqueira Artocarpus heterophyllus Lam.) na ração sobre a produção, pigmentação da gema e umidade fecal em codornas

Abstract

An experiment was carried out to evaluate the effect of increase levels of jackfruit (Artocarpus heterophyllus Lam.) seeds bran in diet of japanese quails on egg production, yolk pigmentation and dropping humidity . A total of 180 japanese quails (Coturnix coturnix japonica) with 42 days oold were distributed in a completely randomized design and fed diets with differents levels of 0; 2; 4; 6; 8 and 10% of jackfruit seeds bran (JSB). The variables feed intake, egg production, egg weigh, egg mass, feed egg mass conversion and feed egg dozen conversion as well as the yolk weight and yolk percentage, egg white, egg shell and egg yolk pigmentation. The data shown that increasing JSB in the diets reduced the egg production and higher feed egg dozen conversion lineally (P<0,05). Therefore the egg yolk pigmentation improved up to 7.44% of JSB in the diet and the dropping humidity was higher up to 4.9% of JSB.The presence of antitrypsin factor is a possible explanation for lower performance on the japanese quails fed diets with increase of JSB fresh. In order to solve this problem e, it is recommended to expose the seeds to a thermal treatment, otherwise the jackfruit seed fresh should not be included in the diet for japanese quails.