It's perfectly natural to have some chick/juvenile mortality, it's not an indicator of sickness to lose one occasionally.
I also feed my dogs "dud" eggs from my incubator. I also feed them any other free and NATURAL protein sources that my animals provide that I would not eat myself, such as my doe that aborted a fetus last year-the fetus, not the doe. And now, before you start saying how unhealthy my goats must be for one to abort- I usually have around 15 does kidding every year. To have one abort occasionally is normal. I have had a total of 3 does abort in the 15 years I've been raising goats. Not bad considering goats are the livestock most prone to aborting because of their size and social habits (like butting). So, they've eaten raw goat before too, and that doesn't mean they are out there right now, clawing their way into my goat pen.
Feeding raw does not make dogs into ravenous salivating killers. I don't know where people get this stuff. ALL dogs have an inborn prey drive. It's MY responsibility to see that they don't get to use it. I made the mistake of letting them out unsupervised with a batch of juvenile chickens two years ago. That's my fault, not theirs. They have not touched a live chicken since.
We don't feed our dogs exclusively raw because we don't have that much waste protein, but I would certainly feed them raw if we could afford it or had more of our own protein available.
If we ever start butchering chickens, I completely plan on feeding the waste parts to the dogs. Seems like a much better idea than sending somewhere to rot-somewhere it actually CAN harbor nasty bacteria while decomposing in a landfill...
It's a shame that more people don't understand how the food chain works, or maybe they do understand, but have a hard time accepting it.