
18/09/2025
Something I have relied on really heavily in the last year or so is mammary gland and teat imaging via ultrasound. I’ve found it to be a great source of information, especially when I’ve got the milk tests (SCCs or cultures, ideally both!) in hand. Ultrasounding the udder going into the dry period has been especially helpful when the dairy farmer is planning for the next lactation cycle, weighing their options and coming to a decision point. Yes, palpation is great, but with live imaging I can differentiate between an angry lymph node, a soft tissue mass, or an abscess. Some abscesses will be harboring sneaky contagious bacteria that aren’t necessarily showing up on your SCCs or cultures, but come next lactation cycle will cause a headache. I can also see duct dilation, fibrotic (chronically scarred) ducts or teat cisterns, little inflamed nodules around the annular ring that may result in major milk flow issues, and so on. This is something we were able to practice in real time when dairy farmer, ag educator, and veterinary technician Kristie Laverdiere brought her Alpine Goat, Ginny, to Lakeview High School’s Veterinary Science class. Kristie is the owner/operator of Lavender Hills Farm in Canaan, and during a milking session recently, she discovered palpable, irritating lumps in Ginny’s udder. Her milk tests were negative for mastitis, but her overall production was diminishing. Melissa and I agreed to meet Kristie and Ginny in the Vet Sci classroom at Lakeview to work up the case with the students. We lead them through a brief thought exercise as a fun way to introduce basic ultrasound concepts and basic mammary health concepts, then Ginny kindly let us ultrasound her right in the room. We came up with an answer and some ways to increase her comfort level. I don’t want to share Ginny’s private information, but I’ll say this is a temporary issue and easily manageable. Ginny pooped on the floor, ate a napkin off the desk, and got some scratches from everyone.