This study aimed to determine the effectiveness of African leaf juice supplements on the chemical properties of quail eggs. This research used 120 quails aged 8 weeks, which divided into 3 treatments and 5 replications. The experimental design used a completely randomized and the treatments were P0 : without the supplementation of African leaf juice as controls, P1: addition of 3 ml head-1 day-1 African leaf juice, and P2: addition of 6 ml head-1 day-1 African leaf juice (P2). The variables observed were moisture, ash, crude protein, ether extract, carbohydrate, malondialdehyde content (MDA), pH and water activity (Aw) in yolk and albumen. The results showed that moisture, ash, crude protein, ether extract, and carbohydrate content in egg yolks had no different effect compared to controls. Malondialdehid (MDA) content in the treatment of 3 ml head-1 day-1 and 6 ml head-1 day-1 of African leaf juice supplementation decreased 39.68% and 36.19% compared to control. Aw level in yolk and albumen significantly (p<0.05) decreased in 6 ml of African leaf juice supplementation, but no effect on the pH eggyolk and albumen. It was concluded that addition of 3 ml and 6 ml of African leaf juice head-1 day-1 could reduce the MDA content of egg yolk.
This study aimed to determine the effect of african leaf juice (Vernonia amygdalina) supplementation in drinking water on the performance and fatty acid profile of quail egg yolk. A total of 120 eight-week-old Japanese quail was used in this study and reared for 6 weeks in colony cage. Completely randomized design with three treatments and five replications were used in this study. The treatments were control treatment (without african leaf juice supplementation), 3 ml bird-1 day-1 supplementation and 6 ml bird-1 day-1 supplementation. The data were analyzed for variance, the significant difference results were tested by LSD test at p<0.05. The variables were feed consumption, drinking water consumption, egg production, egg weight, egg mass, feed conversion and mortality as well as analysis of egg yolk fatty acid. The results showed that african leaf juice contained high flavonoid and saponin. Daily supplementation of african leaf juice in drinking water at the doses 3 and 6 ml bird-1 day-1 did not affect the performance of laying quails. Mortality in treated quail was 33.3% and this value was lower than control. Ratio of omega 6 and omega 3 was ranging 24.5% – 26.2% fat. It could be concluded that african leaf juice could use to reduced mortality.
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