What is oviposition in poultry?
Definition: Oviposition: Egg-laying. To oviposit means to lay eggs. This is an activity of all the adult female insects mentioned in this database, except females of Ormia because they lay larvae, not eggs. See also larviposition and breeding.
What animals use oviposition?
The stingers of the Aculeata (wasps, hornets, bees, and ants) are ovipositors, highly modified and with associated venom glands. They are used to paralyze prey, or as defensive weapons. The penetrating sting plus venom allows the wasp to lay eggs with less risk of injury from the host.
What is the purpose of oviposition?
Several species show specialized oviposition behavior, which ensures the survivorship of the offspring, by depositing egg masses on substrate in predictable and stable environments for egg development (Hoffmann and Resh, 2003).
What is insect oviposition?
Oviposition is the term used to describe laying of eggs.
Which hormone is responsible for oviposition?
Among the hormones, PGF2α plays a pivotal role in oviposition cycle regulation in avian species, such that the enhanced synthesis and release of uterotonic PGF2α stimulates uterine muscle contraction, which culminates in expulsion of the egg [12,18].
What is oviposition behavior?
It involves the deposition of the mature egg outside the body of the female and includes a series of behavioral and physiological events that begin with the movement of the egg through the oviduct and end with the placement of the egg on a substrate that will support the development of the larva.
What stimulates oviposition?
Oviposition response of a haematophagous insect is influenced by certain chemical substances as well as the odors associated with their habitat. Odors emanating from submerged organic infusions act as oviposition attractants and/or repellents to Culex mosquitoes (Kramer and Mulla, 1979).
Which hormone is responsible for oviposition in birds?
What ovipositor means?
Definition of ovipositor : a specialized organ (as of an insect) for depositing eggs — see insect illustration.
How do Ovipositors work?
The ovipositor is attached to the abdomen of insects and the eggs pass down the tube. In parasitoids the ovipositor can be used to pierce the skin of another animal, such as a caterpillar, and the egg of the parasitoid can then be laid inside the host organism.
What are the different types of ovipositor found?
What are alien eggs made of?
For Alien, a total of 130 Eggs were built for the Egg chamber scene, constructed from plaster, with a single “hero Egg” that featured a rubber top that was articulated with hydraulics and capable of opening. The interior of the hero Egg seen was composed of “Nottingham lace”, which is the lining of a cow’s stomach.
Is estrogen good for females?
In females, it helps develop and maintain both the reproductive system and female characteristics, such as breasts and pubic hair. Estrogen contributes to cognitive health , bone health, the function of the cardiovascular system , and other essential bodily processes.