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Another study found that brown-egg laying hens are more likely to engage in feather pecking than white-egg laying hens. [1] The genetics of poultry will not guarantee a bird will engage in cannibalism, but the genes a bird possesses play a part in the degree of aggressiveness a bird could engage in feather pecking and increases their risk ...
The causes and development of vent pecking are multifarious. Risk factors that have been identified as increasing vent pecking include dim lights placed in nest boxes to encourage hens to use the boxes, the diet being changed more than three times during the egg laying period, the use of bell drinkers, and the hens beginning to lay earlier than 20 weeks of age. [2]
Sprout, a hen who lay eggs on a barn longs to be free from her cage. Sprout becomes depressed and eventually stops eating and is taken out of the farm by the owner only to be thrown into a hole. Sprout gets woken up at night by a mallard duck named "Straggler" who warns her about a weasel that planned to eat her.
More than 40% of the nation's roughly 300 million egg-laying hens are raised in cage-free facilities, but roughly 60% of "bird flu" cases recently detected involved cage-free farms.
Mortalities, mainly due to cannibalism, can be up to 15% in egg laying flocks housed in aviaries, [2] straw yards, [3] and free-range systems. [4] Because egg laying strains of chickens can be kept in smaller group sizes in caged systems, cannibalism is reduced [5] [6] leading to a lowered trend in mortality as compared to non-cage systems ...
The theory gained steam on Facebook, TikTok and Twitter in recent weeks, with some users reporting that their hens stopped laying eggs and speculating that common chicken feed products were the cause.
The RSPCA "Welfare standards for laying hens and pullets" indicates that the stocking rate must not exceed 1,000 birds per hectare (10 m 2 per hen) of range available and a minimum area of overhead shade/shelter of 8 m 2 per 1,000 hens must be provided. Free-range farming of egg-laying hens is increasing its share of the market.
Fitting pin-less blinders to laying hens leads to reduced activity, increased resting, adjustment problems in feeding, stereotypic head shaking and protracted displacement neck preening for a month after fitting. [3] In another study on laying hens, mortality was greater among hens wearing blinders compared to hens that had been beak-trimmed. [5]
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