Effect of Some Feed Additives on Quality and Chemical Composition of Local Quails Eggs
This study was conducted to investigate the effect of some feed additives on quality and chemical composition of Local Quails eggs. Two hundred thirty one (231) laying quails at the 0 day of age were randomly assigned into 2 groups (Ta, and Tb) group. Ta group were fed basal diet without any additive during starter, grower, pre-laying and laying that it was control. While Tb group fed Optifeed ® (500gm/ton feed) during starter period (from 0 day until 11 days of age). The Tb group divided into 6 sub-treatment groups T1, T2, T3, T4, T5 and T6 were their feed added, 0, 500 gm/ton feed Optifeed ®, 100 gm/ton feed; Oleobiotec, 250 gm/ton feed; VêO ® premium, 100 gm/ton feed; Force®6 and 225 gm/ton feed mixture of all of them (Oleobiotec ® 50 gm/ton feed, VêO ® premium 125 gm/ton feed; Force®6 50 g/ton feed) for 49 days consecutively. Each treatment included 3 replicates. After 7th week of age when 3 eggs per each replicate were taken to determine the quality characteristics such as egg (weight (gm), length (mm), width (mm)), shell quality include (weight (gm), thickness (mm), strength (Kg/cm3); yolk (weight (gm), diameter (mm), height (mm), color), Haugh unit. At the end of the 7th week 3 eggs per each replicate were collected to analyze the proximate composition of the eggs of quail as percentages of moisture, protein, and minerals. The overall data showed that control (Ta) showed significantly (p≤0.05) higher egg weight than both T2 and T6 groups. Ta and T1 groups had significantly (p≤0.05) higher egg length than T6. Ta, T1 and T6 groups showed significantly (p≤0.05) higher shell thickness than T2. Ta, T4 and T5 composed significantly (p≤0.05) higher moisture % than T2 group. Ta had significantly (p≤0.05) lower Hg (ppm) than T4 and T6 groups.
It can be concluded that: Control (Ta) and T1 results were better than other treatments. The underlying production and physiological mechanisms need to be characterized to evaluate the effect of the added feeds.
Keywords— Optifeed®, Oleobiotec, VêO® premium, Force®6, Egg quality, Egg composition, Quail.