| 70% of an egg is water, If water % get decresed | Supply sufficient water | 
									
										| Diseased or lice and worm infestation | Provide preventive medicine, lice destroying medicine and anti
											helminthetics
											with feed and water at every 2-3 months interval | 
									
										| Sudden change of space and light of house | Space should not be changed when birds starts to lay and ensure
											16 hours
											lighting in the whole laying period | 
									
										| Climate Change | Try to keep the environment cold during summer season, provide
											cold water
											mixed with vitamin C, fed pellet, increase the number of feeder and drinker
											etc. | 
									
										| Moreover, egg production may be reduced during vaccination and
											de-beaking | --- |