The only times I would give colostrum are:
- triplets; I usually make up one or two doses and top them up after they've all had a chance to get some from mum, on the basis I don't want to risk that she didn't have sufficient for all three - if it's obvious that numbers one and two had all the colostrum before three was up and seeking then I'll give that one a full dose
- inexperienced mother with twins is empty before number two is up and seeking
- lamb has got cold and / or hasn't suckled and it's getting near to two hours since it was born
- lamb doesn't have a nice round tummy and mum appears to have no more to give and it's getting near to two hours since it was born
- new mother not letting lamb suckle, in which case I would first of all try to get the lamb on her teat, if not then milk her if I possibly can
- abandoned lamb, sick ewe, other circs in which colostrum from own mother in the normal way isn't going to happen
- it's time I went to bed and there's a newborn lamb and any doubt at all it will get colostrum from its own mum in time - which with my experienced ewes is generally not a concern as I know they all do a good job without my help - and that's the point
And yes, milking mum preferable to powdered, or milk from another recently lambed ewe if she has some to spare (I harvest some if I get a mum with a single and a good bag, or one of those ewes with a humungous engorged teat you have to milk some off before the lamb can get on the teat - although, whilst the colostrum is useful, that's a mark on her card as I don't want to be breeding from ewes where I have to intervene.)
If I have a lamb hasn't had any colostrum from any sheep (and I don't have any from my sheep), then I give it one drink of powdered and one of colostrum from my Jersey if I have it - on the basis she's from the same farm so will have some of the local antibodies.
But the point is, I want to
know if any of my ewes can't feed their lambs adequately without any intervention from me - and in general, not breed from any that need any intervention. A bit of helping them settle the very first time is allowable - although I have one shearling who needed that this time, and her mother did too the first time, so if I keep a daughter from her I will be watching closely and probably end that branch of that line if the daughter is the same. Not all first-timers need a bit of settling, so again, if I think it's genetic, that's genetics I don't want in my breeding ewes. I lamb outdoors, and I don't go into the field in the dark, so I need to know that my ewes can do their job without my attendance.
I did wonder to myself this year whether I ought also to check with anyone from whom I get a tup that they also lamb outdoors - and now I am sure I shbould!