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Older hens gradually produce fewer eggs, and the eggs are usually larger. [1] Since the average lifespan of a pet layer hen is 8–15 years, [2] henopause has received attention as a potential problem for backyard or urban chicken farmers who are eventually faced with the decision to either slaughter older layers or keep them as non-producing pets.
Forced molting typically involves the removal of food and/or water from poultry for an extended period of time to reinvigorate egg-laying. Forced molting, sometimes known as induced molting, is the practice by some poultry industries of artificially provoking a flock to molt simultaneously, typically by withdrawing food for 7–14 days and sometimes also withdrawing water for an extended period.
While a single specific cause is unknown, chronic egg laying is believed to be triggered by hormonal imbalances influenced by a series of external factors. [1] As in the domestic chicken, female parrots are capable of producing eggs without the involvement of a male – it is a biological process that may be triggered by environmental cues such as day length (days becoming longer, indicating ...
The eggs from pasture-raised chickens have less cholesterol and more nutrients, Steele said, because of their healthier, more varied diets. Yolks are not the only thing that come in different colors.
The UK alone consumes more than 34 million eggs per day. [84] Hens of some breeds can produce over 300 eggs per year; the highest authenticated rate of egg laying is 371 eggs in 364 days. [85] After 12 months of laying, the commercial hen's egg-laying ability declines to the point where the flock is commercially unviable.
Norway: In May 2023, Jæren-based company Steinsland & Co and Nortura, representing two-thirds of the Norwegian laying hen market, installed the first Seleggt in-ovo sexing technology in the country in order to sort out fertilised male eggs before the 13th day of incubation, with the aim of gradually phasing out all hatched chick culling in the ...
A common practice among hatcheries for egg-laying hens is the culling of newly hatched male chicks since they do not lay eggs and do not grow fast enough to be profitable for meat. There are plans to more ethically destroy the eggs before the chicks are hatched, using "in-ovo" sex determination.
According to the latest USDA report from mid-December, US egg production is down 4% year over year, with 3% fewer egg-laying hens. Per Datasembly , eggs are at their highest price since January 2023.