Light is not only an important environmental regulation factor in poultry growth and
development, but it is also a key factor affecting circadian rhythm. To explore research …

The present study aimed to determine the effects of varying light intensity (high 121.8,
medium 57.4 and low 11.9 lux) and stocking density (high 552.3, medium 736.3, and low …

This study determined the effect of layer age, egg-laying time, cage tier, and cage direction
(outward-inward) on egg quality parameters of commercial layer chickens reared in …

Egg quality traits are of utmost importance in layer breeding programs due to their effect on
profitability in the egg production industry and on the production of quality chicks. Therefore …

The low uniformity in light distribution provided by conventional lighting systems installed in
laying poultry can compromise the productive performance and egg quality of laying hens …

This study was conducted to investigate the effects of cage tier and age on performance
characteristics of layer hybrids, egg quality and some stress parameters. Ninety laying hens …

Conventional cage layer barns typically exhibit distinct variations in light levels between tiers
in cases where lamps are both ceiling mounted and where they are alternated between …

Due to the difference in spectral sensitivity between poultry and human, there was an
importance to identify the optimal light environment for the health, behavior, welfare, and …

Hen performance can be affected by many interacting variables related to cage design, such
as floor area, height, tier arrangement, and feeder and drinker type and placement within the …

ABSTRACT A comparison has been made between natural mating (NM) and artificial
insemination (AI) in fast feathering Huainan partridge chickens. A total number of 360 fast …