Normal eggs are oval in shape with one end slightly smaller than the other. Any deformed egg that is too long, round, or drum-shaped cannot be used as a seed.
Moderate size, each species has a certain weight requirements. Such as star miscellaneous 579, the standard egg weight is more than 60 grams, more than 55 grams of Pudong chicken, Taihe chicken more than 35 grams, too large hatching rate is too small, the newborn is young.
The shell color represents the characteristics of a pure breed. Eggs require uniform shell color, no spots, smooth surface, no sand shells, uneven indentations.
The normal shell thickness is 0.33 to 0.35 mm, and the thickness is less than 0.27 mm for thin shell eggs, and the thickness is greater than 0.45 mm for thick shell eggs. Shell eggs evaporate quickly, bacteria are easy to invade and prone to damage; thick shell eggs, moisture is not easy to evaporate, gas exchange difficulties, chicken embryos are not easy to shell, easy to suffocate.
In addition, attention must be paid to the cleanliness of the appearance of egg shells, and eggs that are heavily contaminated with feces should not be left in the plant.
Beard Straight Comb,Straight Beard Comb,Men Hair Straightening Comb,Electric Straight Hair Beard Comb
Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.szmeizon.com