Rows of adjacent cages keeping groups of chickens in close proximity with each other with shared air.
I'm not advocating for one or the other, just explaining. Even cage free chickens will come into close enough proximity where they will all die if just one chicken picks up the flu. It's incredibly virulent.
Are they getting bird flu at a higher frequency?
This is from Australia, but whatever:
"In Australia, indoor and free-range poultry, are at risk of contracting avian influenza due direct and indirect contact with waterfowl who may carry avian influenza virus in their nasal and eye discharge or faeces, farming and biosecurity practices.
Indoor (barn or shed) systems limit poultry from direct exposure to wild birds, but these are not immune to avian influenza risks due to indirect contact. This is because equipment, vehicles and human movements between farms can introduce the virus indoors, in particular when on-farm dams or open water sources act as a permanent residence for waterfowl.
Birds with outdoor access (free range) are at risk of coming into direct or indirect contact with wild waterfowl. Vegetated range areas may attract waterfowl, in particular if poultry are given feed or water outdoors. In free-range production systems, producers should therefore focus on managing these systems to reduce the risk of avian influenza."
https://kb.rspca.org.au/knowledge-base/what-is-the-risk-of-f...
Granted, I don't know much about chickens, but a lot of this is common sense. I'm not sure what you think I'm wrong about.
For the same reason that the main guidance during COVID was "be outside if with other people" and not "stay inside if with other people".
Thus stuff is not related, wild to see people trying to conflate it.
But luckily that isn't actually the case. The price difference between cage-free and "caged" eggs is negligible. I'm in New York City, not known for its local egg production, and I can still get cage-free eggs for $4/dozen. Kroker/Walmart is just ripping you off.
That's where I can be a proponent of lab-grown meat without consciousness
capons? We've been doing it for millennia.
https://en.wikipedia.org/wiki/Capon
EDIT: possibly you meant non-feasible since it's too expensive anyway, which it probably is.
Here's a scientific looking study about adjusting incubation temperature in Korat Chickens. [2]
TLDR: higher than standard temperature results in similar hatch percentage, but more genetic female, morphological male chicks. Lower than standard temperature results in a lower hatch rate, but more genetic male, morphological female chicks.
I saw some less scientific articles that attributed higher surviving female chicks at lower incubation temperature to male chicks being less likely to survive in those conditions, but since this paper did genetic analysis, it appears there's some amount of temperature dependent sex determination in addition to genetic sex determination. I didn't look around to see if I could find a paper showing this in more typical US livestock breeds of chickens, and at least from these results, it seems like while the proportion of female to male chicks increased, the number of female chicks at 5 weeks after hatching, did not due to differences in mortality.
I also saw a news release about giving the mothers stress hormone and seeing more female chicks, but that artificial hormones is not acceptable practice in the poultry industry, so they were looking for other ways to induce that reaction. [3]
I also saw some references to determining (presumably genetic) sex before hatching, which could lead to earlier intervention, which may be more humane. It didn't look like there was anything definite there, but I'm going to stop going down the rabbit hole here.
[1] https://www.nal.usda.gov/exhibits/ipd/frostonchickens/exhibi...
[2] https://www.sciencedirect.com/science/article/pii/S030645652...
[3] https://www.poultryworld.net/health-nutrition/stressful-bird...
And that is, if they even have any eggs at the store. I've been to Wal-mart and Kroger when the entire section is empty with a sign saying there are egg supply issues.
It's also winter so my 'chicken farmer friends' are low on eggs, when it's cold the chickens don't lay nearly as many.
https://www.freep.com/story/news/local/michigan/2024/12/18/m...