So I was cleaning the boa enclosures this last weekend and noticed both my male BCIs have developed vertical lines along their sides that almost look like stretch marks. Both are 2012 males weighing in around 300 grams, are housed in AP T8s, are currently fed 1 lean rat pup every 7 days, and are handled 2-3 times per week. Temp gradient is fine: 88-90 warm end and 76-79 cool end. Humidity 50%-60% non-shed. Enclosures are spot cleaned daily and sanitized weekly. Body wise, they are good and muscular..I like to call it "boa square". No other health issues. Both have super sweet temperaments and eat and poop fine.
Has anyone seen these in their boas? Is this a feeding issue (rats vs mice)? Sedentary issue? Nothing to worry about? Sorry, I didn't take pics.