That's good, prsiriechickens! We can rule that one out. 

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I hatched chicks this year and they are fine. It is possible that the flock was treated for worms too soon to collecting eggs.Congrats on your 600th post, Vamvakas!
Hopefully someone will have the answer to your question. I am not experienced enough with Australorps yet to have that answer.
I have a question for everyone! Has anyone bought Australorp babies this year from a hatchery in the US and at 1-2 weeks of age notice the chicks start developing underbites and eventually lead to possible scissor beak problems? I have bought 4 chicks at two different times from a local feed store and didn't think that the underbites could be genetic until I noticed they were all getting them.
Anyone know which hatchery might be at fault here?
And also, I've noticed as my chicks age (I've lost two to random deaths and a third is acting suspicious) their heads start looking like they might be a big misshapen, or perhaps too small for their body. Very strange. Never experienced such a high incidence of problems with any other type of bird in any previous season.
You should not hatch eggs for a month after treating them with wazine.Wow, remind me not to use it with my breeding flock! I try to go the most all natural route anyhow.![]()
Why would you use Wazine on mature birds ? It only gets round worms. Safeguard 10% Goat wormer and Valbazan have had ZERO side effects for me. They are much broader spectrum wormers too. Each bird is weighed, and individually dosed 4 times a year.You should not hatch eggs for a month after treating them with wazine.
You would be amazed at what people will use--feed store nonsense and etc.Why would you use Wazine on mature birds ? It only gets round worms. Safeguard 10% Goat wormer and Valbazan have had ZERO side effects for me. They are much broader spectrum wormers too. Each bird is weighed, and individually dosed 4 times a year.