The effects of dietary hot pepper Capsicum annuum waste powder supplementation on egg production traits of Japanese quail layers

Abstract

This study was conducted to evaluate the effects of different levels of dietary hot pepper (Capsicum annuum L.) waste supplementation on egg production performance and quality in Japanese quail hens (Coturnix coturnix japonica). A total of 192, seven-week-old Japanese quail layers were divided into 4 treatment groups of similar mean weight (304±0.5 g), each comprising 12 subgroups (including 1 male and 3 females). Treatment birds were fed on experimental basal layer diet supplemented with 1, 2 or 4 g hot pepper waste powder (HPWP) per kg diet. The laying performance was determined by recording feed intake, egg weight, daily egg production, and biweekly egg quality. Results showed that HPWP supplementation to layer diet did not have any significant (P>0.05) effects on body weight and feed conversion ratio, while it had significant effects on feed intake (P<0.01), and laying egg weight, average egg weight, total egg yield (P<0.05). A 2 g HPWP supplementation resulted in the highest total egg yield (P<0.05) with quadratic effects on egg shape index (P<0.05) and albumen pH (P<0.01). According to the values in the study, the egg shape index of 2 g HPWP group was circular and; therefore, attractive to consumers. We highly recommend the non-economic value of 2 g/kg supplementation of hot pepper waste powder, especially for egg production. To conclude, HPWP can be used for quail layer diets due to its beneficial effects on egg quality since it is an economic and easy agricultural by-product obtained from red pepper paste industry waste.

Effects of Dried Spinach Leaf Supplementation on Performance and Egg Quality in Laying Hen Diets

“…However, the high level of sweet dried green pepper powder addition caused a decrease egg weight, but the redness (a*) value was increased of egg weighs. Also, there was an increase in redness (a*) value with dietary Capsicum annuum (hot pepper) waste powder supplementation to diet in Japanese quail's egg yolk (Filik et al, 2020). In the current experiment, addition of 1% dried spinach leaves caused similar or superior values in performance parameters, however, its 2% concentration caused a decrease in the number of values.…”

Effect of Dietary Incorporation of Chili (Capsicum annuum) Leaf Powder on Production Performance and Egg Quality Parameters of Rhode Island Red Laying Hens

“…Ashour et al (2020) observed a significant increase in egg production; however, feed intake and feed conversion ratio were not affected after incorporation of Moringa oleifera leaf powder in diet of laying quails. Filik et al (2020) found significant increase in egg production of Japanese quail among all the hot pepper (Capsicum annuum) waste supplemented groups.…”

“…Ashour et al (2020) observed no significant effect on egg weight and shell percent after incorporation of Moringa oleifera leaf powder in diet of laying quails. Filik al. (2020) found no significant effect on egg weight of Japanese quail supplemented with hot pepper (Capsicum annuum) waste powder at 1 and 4 g/kg diet.…”