Increasing hatchability
Always ensure to feed breeding stock on sufficient high-quality nutritive feeds. Additionally, ensure proper disease management practices to maintain good quality egg production. Also, make sure that you have a 1:5 cock to hen ratio this ensure production of fertilized eggs. Furthermore, handle eggs with great care to avoid damages that may negatively affect egg hatchability. Lastly, ensure that eggs have proper aeration by providing good nesting materials like wood shavings, and properly dried grass straws but not saw dust and news papers.
Other major factors
Always provide clean litter for proper egg sanitation, and do not wash or clean eggs that are to be hatched, this prevents the removal of the egg protective sheath. Additionally, store collected eggs in a tray with the wide side of the egg facing upwards to allow the embryo to breathe well. Lastly, do not incubate eggs stored for more than 10 days, as well as those with abnormalities.