What percentage are these 100 chicks from total? If this percentage is high, check the mineral supply. I guess you have broilers - can it be that they are growing too fast? Maybe they are jumping from some high racks and the skeleton is not strong enough to tolerate the impact. If you are sure that there is no physical reasons, check the diet, speak to your neighbors (maybe some of them have experience with this) etc.
Could you please give more details about your problem?
We have done aflatoxins tests on the feeds and the results were 8.6ppb bacterial culture had no significant growth. the strange thing was that rapture of the knee. These are layers not broilers strange that is only one leg is affected
Sorry not to be able to help you more.
But try to contact with your chicks provider etc.
Maybe is it an isolated case, or maybe not.
Any how your chicks provider should know about this problem.
Best Regards and hope you find soon a solution.
Thanks for your help apparently the chicken are still dying with the same problem the mortality is about 50 in day in flock of 70,000. I have another question what causes peritonitis in layers chicken
Escherichia coli (APEC)-induced egg peritonitis in layer chickens
Reverse movement of albumen and Escherichia coli bacteria from the oviduct into the Abdomen.
With Management of body weight and uniformity, reproductive development (ovary follicle growth and maturation), and drinking water sanitation are the best preventive strategies.
Do not know much about this issue.
Check Internet - there are many Information about this Problem.
Best Regards
I would suspect the cause of your problem to be a form of osteoporosis. Are you able to provide the levels of Calcium, Available Phosphorus, Vitamin D3 and Choline Chloride in your feed? The source of inorganic phosphates used in the feed also needs investigation.
could it be from something as simple as the handler being to rough when it is being handled by the legs - when the system produces eggs and the nutrition isn't balanced and they are kept in cages preventing exercise which also causes weak muscle will also effect/cause weak bones - when you grab them by the leg and the bone is already weak it will break easier
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