Lash itself is only tissue that encapsulates, not necessarily an infection that is raging, however, hybrid layers
are very prone to egg malfunctions, which do sometimes begin with e-coli infections like salpingitis. I've lost about 16 hens to internal laying, egg yolk peritonitis, reproductive cancer, etc, and
all except two were hatchery hen (but no sexlinks, who are even more prone, generally, being bred to produce non-stop). Once I started hatching from good breeder stock, no matter the breed, I almost never see this anymore. It's awful watching them waste away with nothing to do for them; and there is nothing to do for them, either. Internal laying is terminal, no prevention and no cure.
I've seen all sorts of odd stuff, including entire eggs that come out encased in a membrane sack, eggs within eggs, an egg filled with nothing but tissue and blood, etc. Never encountered vent gleet in all the dozen years of chickens, though, so can't really comment other than to agree with another poster that it is probably over-diagnosed.
When you start seeing a lot of lash eggs and other stuff from a hatchery production type hen, especially when they pass two years of age, you should probably prepare yourself. Could be she'll live much longer, but if she's already had a couple of issues, you'll probably encounter more with her before long. The last hen to produce something almost identical to what you showed us was a hatchery RIR, about 5 years old, one of my oldest living hatchery girls, who, we found, had reproductive cancer. I have not seen anything like it that I recall since that time a few years ago. She was one of the last of the original hatchery hens. These threads might be of interest to you when you have some time to read.
Olivia
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