The internal or circadian timing system is deeply integrated in female reproductive
physiology. Considerable details of rheostatic timing function in the neuroendocrine control …

The egg-laying rate is an important indicator of egg production of laying ducks. Egg
production directly impacts the economic benefits of the duck industry. In order to obtain …

Most of the biological functions, including the immune system, are linked to circadian
rhythms in living organisms. Changes occurring to biological parameters as the result of …

In a variety of species, individuals appear to be consistent in the daily timing of their activity
onset. Such consistent among-individual differences can result from both intrinsic factors, as …

Abstract Cryptochrome 2 (Cry2) gene regulates circadian rhythm and affects reproduction
and pregnancy. Therefore, this study aimed to explore polymorphisms of the Cry2 gene and …

Background Avian eggs have a proteinaceous cuticle. The quantity of cuticle varies and the
deposition of a good cuticle in the uterus (Shell-gland) prevents transmission of bacteria to …

Background At sexual maturity, the liver of laying hens undergoes many metabolic changes
to support vitellogenesis. In published transcriptomic approaches, hundreds of genes were …

MicroRNAs (miRNAs) are involved in regulating the circadian clock. In our previous work,
miR-218-5p was found to be a circadian miRNA in the chicken uterus, but its role in the …

Background miRNAs regulate circadian patterns by modulating the biological clocks of
animals. In our previous study, we found that the clock gene exhibited a cosine expression …

Circadian timing system controlled the rhythmic events, for example, ovulation and
oviposition in chickens. However, how biological clock mediates eggshell formation remains …