We have about half our herd of calves this year get pink eye even tho we gave them a pink eye shot. What did we do wrong since they still got it. The cows are all healthy and we check they every other day. Please give some advice as to what we can do for next year. Thank
You are all right. IAdave: we used to spray combiotic directly in the eye before they took it off of the market. 1 spray per day x 3 days and you would never know the calf ever had pink eye. Today I would give the calves a shot of LA 200 and squirt some right into the eye (no needle) just a little rinse. 1 more thing that will help, take a regular sprayer and spray (just a light spray) the calves down with diesel fuel. This will help get rid of the flys. Less flys = less problems.
Vitamin A can be a cause but normally around here we started to get it when the grass would go to seed and cause the calves eye to water then the flys join in. We would clip our pastures as soon as the grass would start to go to seed. We never owned cows, we only bought feeders and finished them so we were well versed in having all kinds of problems. We knew when we bought calves who the problem calves were going to be. Most black cattle have no problems because the dark eyes don't attract flys. For example on white faced cattle, a dark eyed calf gets along allot better then a light eyed calf. Seems the flys are attracted to the light skin around the eyes. Good luck!
Oh, I personally had pink eye once. You really can't fully understand what the calf goes thru until you get it yourself!
Last edited by timdcrossley; 07-29-2011 at 08:45 AM.
AgChick: There are lots of races of pinkeye and none of the vaccines get them all. In addition to all the comments already made, you can mix Aureomycin50 in with the rock salt in the mineral tubs. You can get aureomycin treated alfalfa pellets and mix with rock salt, but they can sort the pellets out. The main way to solve this problem is don't have white faced cattle...period...no Herefords, no Chars, no Hereford Simmys, no Black Baldies...just Black Angus or Red Angus. The intense reflection of sunlight and UV radiation from white face cattle makes them tear up...which attracts the flies. Plus, in addition to making your life a lot simpler, you can get premiums for your cattle. Good luck.