According to my avian vet, treatment for blackhead/histomoniasis is Metronidazole (Flagyl or Fish-Zole), 30mg/kg once a day my mouth for 5 days and de-worming with Safeguard for Goats/Cattle (fenbendazole 100mg/ml), .5cc/kg by mouth and repeat in ten days. The faster you start treatment, the less likely you are to have the secondary bacterial and/or fungal infections and death.Thanks for the reply. We have a 2nd sick bird. Not as sick, but walked into the pen this am and observed him laying down, slow to rise, and not wanting to get out and about. I grabbed him, stood him up, and he stood, but his wings were droopy, and he was lethargic. We grabbed him up and started him on electrolytes and put in some Tetracycaline with the water. His droppings were normal, and have become a little runny after the electrolytes.
We've noticed that the birds that we get from reputable breeders don't have the problems that these guys do. Is there a good inoculation drug that we can give them sorta like what they get shipped with? They're approximately 6mos old.
We are quite good at giving horses shots, but no idea about how to give a bird a shot. I'm going to check YouTube to see if I can get started there, and any input on your part would be appreciated. What antibiotic would you recommend?
If you can, get your birds in a place where you can see all of their droppings. I've had blackhead outbreaks where some of the poops were yellow, some had a little blood, some had a lot of blood and some that looked almost normal. This link has poop photos - All but the poops on the paper towel were from peachicks with blackhead: https://www.backyardchickens.com/t/719075/lightbox/
All of the chicks were treated as I stated above, and all survived.
These are photos of another chick with blackhead: https://www.backyardchickens.com/t/714542/lightbox/
If you can, get to a vet ASAP and get some Metronidazole and ask them if you should give an additional antibiotic and/or anti-fungal.