Protein-peptide components of shell bioceramic matrix of hen incubatory eggs under the influence of different factors of environment

The authors estimated the character and the degree of effect of negative factors of different genesis (xenobiotic, toxicants, pathogenic microflora, no adequate conditions of keeping and feeding) on structuredness of shell bioceramic matrix of hen eggs. The authors determined also quantitative and qualitative parameters of protein-peptide organic component of shell bioceramic matrix of incubatory eggs in hens of different breeds and crosses in the norm and during the pathology, and also nature of interrelation between shell matrix structure and content of protein-peptide components. It was shown, that disturbance of structuredness of shell bioceramic matrix caused by the change of content of structure-forming protein-peptide components - ovokleidin-17 and the set of middle- and low molecular peptides with mass from 455 to 881 a.u.m.