TIBIAL DYSCHONDROPLASIA & FEMORAL HEAD NECROSIS

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Tibial dyschondroplasia is a condition where the cartilage below the growth plate continues to persist instead of calcifying. The condition is seen in long bones and particularly evident in faster growing chickens. Due to lack of adequate calcification the bone at its extremities remains soft and often bends under pressure or heavy body weight.

Image 1 is of an X-ray that shows the difference in calcification between a normal bone on the right and an affected bone on the left.

Image 2 shows the persistence of cartilage as a white plug just below the growth plate in the tibia of a broiler chicken. The bone is not only bent but can easily fracture causing severe lameness in affected chickens.

 

Femoral Head Necrosis is the result  of poor calcification of the long bones in fast-growing breeds of broilers.

Image 3 –¬† The femoral head is very soft and easily cut with scissors and this area of the femur is susceptible to bacterial infection.

 

 

 


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