Boondoggle,

Do not cath to determine sex. That's fine if you absolutely cannot have a mistake ... but ... you have a mixed sex pond already. Doesn't have to be a perfect method ... just highly effective and not commonly wrong. Use the broom straw method. It can be done in the field without anesthesia and it isn't often wrong. There is no risk of breaking a catheter and very little risk to the tested LMB. Works best for LMB between 12 and 15 inches.


It isn't what we don't know that gives us trouble, it's what we know that ain't so - Will Rogers