x2 on the probiotics. Yes, the immune system is largely in the digestive tract. Contrary to popular belief (at least for humans which is the research I'm most familiar with), probiotics and probiotic foods do not typically re-populate your gut with the good bacteria. But the good bacteria do help digest food and fight the good fight on their way through the GI tract. And so, you have to keep eating probiotics or probiotic foods on a regular basis. I imagine it's similar for chickens.
Lots of folks ferment their chicken feed as an inexpensive way to boost probiotics. You don't need anything fancy and there are several threads on BYC on the subject.
Personally, I brew a probiotic liquid called EM (effective microorganisms) which is a mixture of yeasts, lactic acid bacteria (probiotics) and phototrophic bacteria. It's a powerful and inexpensive resource of probiotics, minerals and antioxidants. I drink it myself, use it to reduce odors in the chicken coop by spraying it down (in warmer months), sometimes put in the chickens' water and most recently, ferment their feed with it. I also use it in the garden as pest control and "probiotics for the soil". The stuff has so many uses and it saves a ton of money from buying these things separately.
And -56F is just freaking cold. I imagine that temps like that are going to cull your flock of weaker birds. Whether the bird was weaker due to genetics or some (potentially improvable) deficiency in their immune system, I suppose you'll never know.
Lots of folks ferment their chicken feed as an inexpensive way to boost probiotics. You don't need anything fancy and there are several threads on BYC on the subject.
Personally, I brew a probiotic liquid called EM (effective microorganisms) which is a mixture of yeasts, lactic acid bacteria (probiotics) and phototrophic bacteria. It's a powerful and inexpensive resource of probiotics, minerals and antioxidants. I drink it myself, use it to reduce odors in the chicken coop by spraying it down (in warmer months), sometimes put in the chickens' water and most recently, ferment their feed with it. I also use it in the garden as pest control and "probiotics for the soil". The stuff has so many uses and it saves a ton of money from buying these things separately.
And -56F is just freaking cold. I imagine that temps like that are going to cull your flock of weaker birds. Whether the bird was weaker due to genetics or some (potentially improvable) deficiency in their immune system, I suppose you'll never know.