I am writing on a tablet, and the submission process is a little buggy, so this is two posts.
The pic above is from a little ten-week-old barred rock mix with a stll-undeveloped comb that died of coccidia.
I used it for practice, and he was indeed a him. Used a Pilling remover with a B guitar string. This fellow had his testes connected well with the peritoneum, so the high E string (smallest) didn't work, and I had to use the B. One side was a slip result and the other was removed OK. Used a sawing and then twisting motion to get it out.
The pic shows a lentil and red bean for size comparison.
A smaller (dead) one I did last week came out easily with the high E string.
Now, I gotta figure out what to do about these coccidia! Already have treatment in their water but they had access to some dirty rain puddles also....