- Location
- North wales
Bolused a group of ewes had some agrimin boluses left so used up the rest of them, and used a new batch of allguard mayo bolus, both cobalt selenium and iodine, took bloods from both groups before and after ( 6 weeks apart) selenium and cobalt are still on the low side in the group treated with the agrimin bolus but the mayo ones are fine, should I drench the group done with agrimin bolus to boost levels ?and in theory the bolus should maintain levels or should I just bolus them again with the mayo ones?