Eggshell quality is one of the most significant factors affecting poultry industry; it
economically influences egg production and hatchability. Eggshell consists of shell …

The major pigment in eggshells of brown-egg laying hens is protoporphyrin IX, but traces of
biliverdin and its zinc chelates are also present. The pigment appears to be synthesized in …

Simple Summary Nowadays, the industry aims to extend egg laying until hens are 100
weeks old or longer (from 65 to 70 weeks currently) to make egg production more …

Egg quality was measured in eggs from different flocks that were reared together and then
allocated to different production systems. Eggs were processed for measurements of …

This study investigated the quality of washed and unwashed eggs stored at 7° C (WC and
UC for washed and unwashed eggs, respectively) and 25° C (WR and UR for washed and …

For a fuller understanding of the functionality of the eggshell cuticle, we conducted a
detailed study using a wide array of analytical techniques (scanning and transmission …

Background The physiological adaptations that have evolved for egg laying make hens
susceptible to bone fractures and keel bone damage. In modern laying hen breeds, longer …

The integrated innate immune features of the calcareous egg and its contents are a critical
underpinning of the remarkable evolutionary success of the Aves clade. Beginning at the …

Cleidoic eggs possess very efficient and orchestrated systems to protect the embryo from
external microbes until hatch. The cuticle is a proteinaceous layer on the shell surface in …

We have studied in detail the changes that occur in eggshell structure and composition
during a production cycle in order to better understand the deterioration of eggshell quality …