Vyliahnutie

Vyliahnutie is the Slovak term for the process of hatching, the emergence of a hatchling from an egg. It is a natural phase in the life cycle of many oviparous animals, most notably birds, but also some reptiles and fish. The term is used in Slovak biology to describe the final stages of embryonic development and the transition from egg to independent young.

During incubation the embryo develops inside the egg. Near the end of development the hatchling begins to break the shell. In birds, the chick often uses an egg tooth, a temporary keratinous projection on the beak, to create an initial opening, a stage known as pipping. After pipping, the chick enlarges the opening and emerges from the shell. In reptiles and other species, similar shell-breaking actions occur. The duration and specifics of vyliahnutie vary widely among species and are influenced by incubation temperature, humidity, egg quality, and the health and age of the parents.

The timing and success of vyliahnutie have major implications for survival and fitness. In natural ecosystems, hatch timing can affect feeding opportunities and vulnerability to predators. In agriculture and poultry production, hatchery management focuses on optimizing incubation conditions to maximize hatchability, synchronize chick ages, and reduce losses from failed hatchings or disease.

In summary, vyliahnutie denotes the hatching process in Slovak usage, a pivotal transition from embryonic life to free-living juvenile stages across various egg-laying species.