Effect of astaxanthin and lycopene on the chemical composition of chicken food eggs under different storage regimes

Abstract

Chemical composition of eggs when feeding lycopene for laying hens at a dose of 20 mg/kg and astaxanthin – 10 mg/kg mixed feed did not change compared to the control, except for increase in phosphorus by 0.06% due to the effects of lycopene. Storage of hen eggs receiving lycopene supplements at a dose of 20 mg/kg of mixed feed at temperature of 4±0.5 °C did not affect the chemical composition and for astaxanthin supplements at a dose of 10 mg/kg of compound feed, the content of raw sol in eggs decreased by 0, 06% compared with control. For storing the same eggs at temperature of 12±0.5 °C, level of raw sol decreased by 0.11 and 0.10% respectively.

Feeding laying hens with lycopene at a dose of 40 mg/kg for 30 days did not affect the chemical composition of eggs, and with the addition of astaxanthin at a dose of 20 mg/kg of mixed feed for 30 days – increases the protein content in eggs by 0.86%. Storage of these eggs at temperature of 4±0.5 °C did not affect their chemical composition, however, egg storage for 30 days at temperature of 12±0,5 °C obtained from chickens fed lycopene supplements at a dose of 40 mg/kg and astaxanthin at a dose of 20 mg/kg, contributed to increase in their raw protein content by 0.54 and 0.72% respectively. Feeding lycopene to laying hens at a dose of 60 mg/kg of mixed feed for 30 days led to increase in phosphorus content in eggs by 0.036% and feeding astaxanthin at a dose of 30 mg/kg of mixed feed did not affect their chemical composition. Egg storage for 30 days at temperature of 4±0.5 °C while feeding lycopene supplementation to chickens at a dose of 60 mg/kg of mixed feed contributed to decrease in moisture content by 1.12% and increase in raw protein content by 0.77% and feeding astaxanthin to laying hens at a dose of 30 mg/kg of mixed feed was demonstrated by decrease in moisture content by 0.92% and increase in protein content by 1.0%. Storage of hen eggs receiving lycopene additives at temperature of 12±0.5 °C led to decrease in moisture by 1.61% and increase in the content of raw protein by 0.73%. Storage of eggs from chickens that received astaxanthin supplementation at temperature of 12±0.5 °C led to decrease in moisture content by 1.63% and increase in raw protein content by 0.88%.