There is a difference between structural issues and developing wrong. Structural issues are genetic, such as being too straight in the rear legs, or being pigdeon toed. Developmental problems are usually seen in large calves when they develop funny in the uterus, rather than having a genetic issue. An example would be when the head gets in between the front legs and the legs, tendons develop "funny", but will straigten out with time.
I have suggested each of these calves had development issues due to the fact they both are of club calf genetics, therefore probably large boned and full of muscle, and the fact that neither mentioned swollen joints in any of the leg joints. No, that is not ALWAYS present, but swollen, hot joints are usually present in joint infection. In addition, all legs would be affected with joint infection, where as developmental issues are usually in the front legs.
Neither case mentioned an elevated temperature, nor did anyone suggest they take a temperature. Navel ill will ALWAYS produce an elevated temp.
I would also lean toward both of these situations to be "good management", and so cleanliness is probably present, as well as treating the navel at birth. Granted, this might be an assumption. If the calf is in an unclean environment, then giving a shot of pen would also create another opening for bacteria to enter the calf, which would not be ideal, although neccessary in some situations.
I do not always look toward the quick fix of antibiotics. They are an important part of cattle production but should not be over used, especially in cases where they are not needed.
So I guess you will just have to trust me. I have plenty of experience also, not only in cow calf production but in diagnostic evaluation.
For everyone reading: Please be advised that diagnosising illness in livestock is difficult when you actually see the animal and have every single variable, it is a stab in the dark when you are diagnosising without seeing things first hand. Use the internet to get ideas to consider and discuss with a veterinarian or someone else you have a relationship with. We all have good intentions in helping those seeking advice, and I am positive no one gives advice with malicious intent. This is just a friendly reminder.
