EFFECTS OF DIETARY SUPPLEMENTATION OF LUTEIN SYNTHETIC CAROTENOIDS, 0.1 CAROPHYLL PREMIX AND 0.1 AVIZANT ON PRODUCTION PERFORMANCE, MORPHOLOGICAL AND INCUBATION CHARACTERISTICS OF EGGS
D. Chotinsky, Ch. Papazov, D. Abadjieva, I. Denev
Abstract: Two experiments were conducted separately to study the effect of lutein at 10, 20 and 40 mg/kg respectively, Carophyll Yellow and Carophll Red at 10 and 20 mg/kg and at 20 and 20 mg/kg respectively,0.1% carophyll premix and 0.1% Avizant on production performance, morphological and incubation characteristics of eggs.
In experiment 1, four hundred and ninety Lohman Brown layers and sixty cocks, 28 weeks of age, were randomly divided into five treatments .The dietary treatments were 0, 0, 10, 20 and 40 mg/kg lutein fed for 30 days.The results showed that dietary lutein had no significant effect on layer production performance.There was no significant effect on egg weight, Haugh unit (HU), albumen index, form
index, yolk index, weight and thickness of shell and weight of yolks. Yolk color was linearly increased with the increasing dietary lutein level. Albumen index decreased , but weight of yolk increased significantly when added 40 mg/kg lutein.
In experiment 2, five hundred and eighty eight Lohman Brown layers and seventy two cocks, 28 weeks of age were randomly divided into six treatments. The dietary treatments were : 0, 0, 10 and 20 and 20 and 20 mg/kg Carophyll Yellow and Carophyll Red respectively, 0.1% Carophyll premix and 0.1% Avizant fed for 30 days.The results showed that dietary synthetic carotenoids and 0,1% Avizant
decreased layer production performance by 3.07, 3.32 and 4.02% and increased not significantly by 0.1% Carophyll premix. Yolk color increased significantly by synthetic carotenoids, 0.1% carophyll premix and 0.1% Avizant .Albumen index and weight of yolk also increased significantly by 0.1% Avizant.
Dietary supplementation of 10 and 20 mg/kg lutein and 0.1% Avizant improved ,but synthetic carotenoids and 0.1% Carophyll premix decreased hatchability of eggs.
In experiment 1, four hundred and ninety Lohman Brown layers and sixty cocks, 28 weeks of age, were randomly divided into five treatments .The dietary treatments were 0, 0, 10, 20 and 40 mg/kg lutein fed for 30 days.The results showed that dietary lutein had no significant effect on layer production performance.There was no significant effect on egg weight, Haugh unit (HU), albumen index, form
index, yolk index, weight and thickness of shell and weight of yolks. Yolk color was linearly increased with the increasing dietary lutein level. Albumen index decreased , but weight of yolk increased significantly when added 40 mg/kg lutein.
In experiment 2, five hundred and eighty eight Lohman Brown layers and seventy two cocks, 28 weeks of age were randomly divided into six treatments. The dietary treatments were : 0, 0, 10 and 20 and 20 and 20 mg/kg Carophyll Yellow and Carophyll Red respectively, 0.1% Carophyll premix and 0.1% Avizant fed for 30 days.The results showed that dietary synthetic carotenoids and 0,1% Avizant
decreased layer production performance by 3.07, 3.32 and 4.02% and increased not significantly by 0.1% Carophyll premix. Yolk color increased significantly by synthetic carotenoids, 0.1% carophyll premix and 0.1% Avizant .Albumen index and weight of yolk also increased significantly by 0.1% Avizant.
Dietary supplementation of 10 and 20 mg/kg lutein and 0.1% Avizant improved ,but synthetic carotenoids and 0.1% Carophyll premix decreased hatchability of eggs.
Keywords: eggs; lutein
Date published: 2017-03-14
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