Just starting to get ready for our orphan lambs again, one farm we had some off last year lambs during January. I know we were a bit late heptavac'ing and worming our lambs last year, can anyone tell me at how many weeks you should heptavac orphan lambs?
Also we were slightly late worming ours last year- we treated with combinex in July time (which was fine for our lambs but OHs sisters then grew too big as should have been slaughtered earlier but couldn't due to withdrawal period), so again how old should they be when we do first worming?