Monochromatic light stimuli during embryogenesis enhance embryo development and posthatch growth

Poultry Science
I RozenboimO Halevy

Abstract

Photostimulation with green light accelerated BW and muscle development of broilers. In experiment 1, temperature sensors were inserted into 50 broiler eggs. The eggs were placed under 5 green light-emitting diode (LED) lamps at an intensity of 0.1 W/m2 at eggshell level for 5, 10, 15, 20, and 25 min (n = 10). Egg temperatures were recorded continuously. A high correlation was found between lighting period and egg temperature elevation, and an intermittent light regimen of 15 min on and 15 min off was found to eliminate light-induced egg overheating. In experiment 2, the effect of in ovo green light photostimulation on embryonic development was studied. Five hundred fertile eggs were divided into 2 groups: the first was photostimulated with green light from 5 d of incubation until hatch (0.1 W/m2 intensity) and the second was incubated in the dark. In ovo green light photostimulation caused a significant elevation in BW and breast muscle weight during embryo development and posthatch until 6 d of age. In experiment 3, 240 fertile broiler eggs were divided into 2 groups as described in experiment 2. At hatch, chicks from each in ovo light treatment were divided into 2 subgroups: the first was reared under green light and the sec...Continue Reading

Citations

Nov 5, 2005·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Orna HalevyZipora Yablonka-Reuveni
Feb 9, 2017·Animal : an International Journal of Animal Bioscience·G S Archer
Nov 1, 2015·Bulletin of Experimental Biology and Medicine·V Yu TitovA V Ivanova
Jul 13, 2017·Journal of Biophotonics·Hilde H BuzzáVanderlei S Bagnato
Apr 17, 2019·International Journal of Molecular Sciences·Shujie NingYaoxing Chen
Oct 28, 2019·Physiology & Behavior·Starlie C Belnap, Robert Lickliter

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