Related Experiment Video
Updated: Jan 28, 2026

High Fat Diet Feeding and High Throughput Triacylglyceride Assay in Drosophila Melanogaster
Published on: September 13, 2017
Leaves of Moringa, Rosemary and Olive as a Phytogenic Feed Additives in Muscovy Duck diets
Background And Objective:
Alternative sources of natural ingredients such as herbs or phytogenic plants have beneficial effects which are used as feed supplements or medicines in poultry. The current research objective was to investigate the influence of using phytogenic plants as feed additives on Muscovy ducklings performance.
Materials And Methods:
A total number of 315 of 14 days old Muscovy ducklings were divided randomly into 7 experimental groups, each group was allocated into three replicates. The experimental treatments were arranged in one way classification by using three sources of phytogenic plants being Moringa oleifera leaves meal (MLM), Rosmarinus officinalis leaves meal (RLM) and Olea europaea leaves meal (OLM) with two levels of plant addition (1 or 2%) compared to the commercial diet (control). The experimental diets were formulated to be iso-caloric and iso-nitrogenous. Feed and water were offered ad libitum from 14 up to 70 days old.
Results:
Data showed that phytogenic plants did not affect negatively growth performance of ducklings but improved gain compared to the control group. The highest value of live body weights (4185 g) was recorded for diet that supplemented with 1% MLM at 70 days old while, the lowest weight recorded for diet supplemented with 2% OLM being 3507 g compared to the control. A significant decrease in FI (g/bird) was noticed for treatment groups during the interval and the whole experimental periods compared with control group.
Conclusion:
Ducklings fed diet supplemented with phytogenic plants recorded the highest values of feather, carcass, heart, liver and gizzard (%) compared to the control group.
Related Concept Videos
Leaving Groups
In general, in a nucleophilic substitution reaction, a nucleophile displaces a functional group, called the leaving group, from the substrate to give a substituted product. A leaving group departs the substrate molecule through heterolytic cleavage, taking the pair of electrons with it to become a relatively stable weak base in the form of an anion or a neutral molecule.
In a...
Conjugate Addition (1,4-Addition) vs Direct Addition (1,2-Addition)
Conjugate addition results in a thermodynamically stable product. The reaction retains the stronger C=O bond at the expense of the weaker C=C π bond. The process is slow as the β carbon is less electrophilic than the carbonyl carbon.
Direct addition products are...
Conjugate Addition of Enolates: Michael Addition
Vector Addition of Forces
To understand the concept of vector addition, consider the scenario of a ship being pulled by two small tugboats. The two forces, F1 and F2, act concurrently on the ship in different directions. The parallelogram law can be used to calculate the net force...
Additional Subnuclear Structures
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles,...
Additional Subnuclear Structures

