Hen Ovary and Egg Formation

Ovary = Contains follicles that mature with yolk material Oviduct = Forms egg white, shell membrane, and shell Infundibulum = Controlled by tactile stimulation for egg formation Uterus (Shell Gland) = Where most of the shell formation takes place

Ovulation = Occurs when a follicle ruptures Magnum = Where thick and thin egg white forms Isthmus = Where shell membranes form Double-yolked eggs = Form when two follicles rupture at the same time

Yolk material is manufactured in the liver = Ovary The shell color is added at this stage = Uterus (Shell Gland) Conception would take place here if hens were allowed to breed = Infundibulum No-yolk eggs can form in this part due to tactile stimulation = Infundibulum

<p>Cage Free = Hens are raised in a building without cages, with light and temperature controlled. Cage House = Hens are raised in cages, often stacked on top of one another with automated systems. Immature Hens = Pullets that arrive at a grow-out facility at one day of age. Molting = The process of causing hens to stop laying for a short period.</p> Signup and view all the answers

<p>Protective Cuticle = Natural sealant for the egg to prevent water loss. Push-Outs = Hens at the end of their productive life. Mechanical Nest = System for egg gathering. Artificial Lighting = Used to stimulate hens for egg production.</p> Signup and view all the answers

<p>Iowa = One of the top five egg-producing states in the U.S. Asia = Main destination for exported eggs from the U.S. 252 Million Eggs = Number of eggs exported from the U.S. in 2017. 50% = Approximate percentage of laying hens housed by the top five states.</p> Signup and view all the answers

<p>Floor House = Type of raising hens without cages but controlled environment. Euthanized = End-of-life process for hens on the farm. Stacked Deck House = Multiple rows of cages stacked on top of each other. Automated Ventilation = System used in cage houses for proper airflow.</p> Signup and view all the answers

<p>Pullets = Immature hens arriving at a grow-out facility at one day of age. Reproductive Cycle = Process where hens usually lay until 70 to 75 weeks of age. Light Stimulation = Encouraging egg production by increasing day length. Mature Spent Hens = Hens at 110 to 115 weeks of age after their productive life ends.</p> Signup and view all the answers

<p>Roll Outs = Feature in cages for easy egg collection. Automated Feeding System = System used to feed hens automatically. Automated Egg Gathering System = Mechanism for collecting eggs without manual labor. Automated Watering System = System used to provide water to hens automatically.</p> Signup and view all the answers

<p>Cage Free = Hens are raised in a building without cages, with light and temperature controlled. Cage House = Hens are raised in cages, with automated feeding and watering systems.</p> Signup and view all the answers

<p>Pullets = Usually stay in the grow facility for approximately 18 weeks. Productive hens = Usually lay until 70 to 75 weeks of age. Mature spent hens = Sold or euthanized after 110 to 115 weeks of age.</p> Signup and view all the answers

<p>Asia = Mainly exports 252 million eggs from the U.S. Europe = Receives egg exports from the U.S. Canada = Receives egg exports from the U.S. Mexico = Receives egg exports from the U.S.</p> Signup and view all the answers

<p>Molting = Process of causing hens to stop laying for a short period. Light stimulation = Encourages egg production in hens. Increasing day length exposure = Critical for proper development of pullets.</p> Signup and view all the answers

<p>Automated ventilation system = Maintains optimal air quality for hens. Mechanical nest for egg gathering = Facilitates easy collection of eggs from hens. Roll outs in cages = Aids in automated egg gathering. Stacked deck house = Consists of several rows of cages on top of each other.</p> Signup and view all the answers

<p>Iowa = One of the top five egg-producing states in the U.S. Indiana = One of the top five egg-producing states in the U.S. Ohio = One of the top five egg-producing states in the U.S. Pennsylvania = One of the top five egg-producing states in the U.S.</p> Signup and view all the answers

<p>Ovary = Produces and releases eggs Oviduct = Forms egg white, shell membrane, and shell Infundibulum = Receives the ovulated yolk and can form eggs upon tactile stimulation Uterus (Shell Gland) = Where the egg spends the most time and where the shell forms</p> Signup and view all the answers

<p>Yolk material = Manufactured in the liver Albumen (egg white) = Forms in the magnum Shell membrane = Forms in the isthmus Shell = Formed in the uterus (Shell Gland)</p> Signup and view all the answers

<p>Ovulation = Occurs when a follicle ruptures Double-yolked eggs = Form when two follicles rupture simultaneously No-yolk eggs = Can occur when something touches the infundibulum triggering egg formation Conception = Would take place in the infundibulum if hens were allowed to breed</p> Signup and view all the answers

<p>Tiny pores = Allowing the developing embryo to breathe Shell color addition = Occurs after shell formation if it's not white Nighttime shell formation = Most of it takes place in the uterus Solid appearance = Despite looking solid, actually has thousands of tiny pores</p> Signup and view all the answers

<p>Left ovary = The one that is usually functional in Ovary Hens Magnum = Where thick and thin egg white forms Isthmus = Where shell membranes form True egg origin point = The place from which the egg truly originates</p> Signup and view all the answers

<p>Ovary maturation of follicles = Contains a series of follicles that mature as yolk material is added to them Yolk entering infundibulum = After leaving the ovary, enters this part controlled by tactile stimulation Thick and thin egg white formation = Occurs in the magnum Shell membrane formation = Takes place in the isthmus</p> Signup and view all the answers