J 2015

Effects of experimentally increased in ovo lysozyme on egg hatchability, chicks immune response and phenotype in a precocial bird

JAVŮRKOVÁ, Veronika, Eva KRKAVCOVÁ, Jakub KREISINGER, Pavel HYRŠL, Ludmila HYÁNKOVÁ et. al.

Basic information

Original name

Effects of experimentally increased in ovo lysozyme on egg hatchability, chicks immune response and phenotype in a precocial bird

Authors

JAVŮRKOVÁ, Veronika (203 Czech Republic, guarantor), Eva KRKAVCOVÁ (203 Czech Republic), Jakub KREISINGER (203 Czech Republic), Pavel HYRŠL (203 Czech Republic, belonging to the institution) and Ludmila HYÁNKOVÁ (203 Czech Republic)

Edition

Journal of Experimental Zoology, Part A, 2015, 1932-5223

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30105 Physiology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.226

RIV identification code

RIV/00216224:14310/15:00082750

Organization unit

Faculty of Science

DOI

UT WoS

000360839200001

Keywords (in Czech)

lysozym; Coturnix japonica

Keywords in English

lysozyme; Coturnix japonica

Tags

Změněno: 6/4/2016 09:59, Ing. Andrea Mikešková

Abstract

V originále

In birds, spectrum of egg white proteins deposited into the egg during its formation are thought to be essential maternal effects. Particularly, egg white lysozyme (LSM), exhibiting great between and within species variability, is considered to be essential for developing avian embryos due to its physiological, antimicrobial and innate immunodefence functions. However, there have been few studies investigating effects of LSM on early post-hatching phenotype, despite its broad physiological and protective role during embryogenesis. Here, we test how experimentally increased concentrations of egg white LSM affect hatchability in Japanese quail (Coturnix japonica) and chick phenotype immediately after hatching (particularly body weight, tarsus length, plasma LSM concentration and plasma complement activity). Chicks from eggs with increased LSM concentration displayed reduced tarsus length compared to chicks from control eggs while hatchability, body weight and plasma LSM concentration were unaffected. It is worth noting that no effect of increased in ovo lysozyme on eggs hatchability could be related to pathogen-free environment during artificial incubation which caused minimal pressure on embryo viability, thus no opportunity for antimicrobial action of egg white LSM While tangible in vivo mechanisms during avian embryogenesis remain to be tested, our study is the first to document experimentally that egg white LSM appears to have growth-regulation role during embryo development, with possible underlying phenotypic consequences in the early post-hatching period in precocial birds.