Yes, farming in Australia and Europe is worlds away... No just because of the weather. I worked on a dairy farm near Timboon/Victoria for 8 months (in 1984/85). We milked 320 cows, but I think that would be considered quite a small farm nowadays in Australia! It was quite a shock to the system. Calving was seasonally; late calvers were induced, the resulting calves were left to die.
The reasons for differences apart from weather are, I think: The price of land, the density of population (which is related to the first), and the power animal rights and welfare associations have here.
Land, even hill land (like this farm where I am), is a lot more expensive than land in Australia. That means you have to farm relatively intensively to make it pay. Every single lamb counts; you are aiming for twins all round. The more lambs a ewe has, the more she needs in the way of feeding; the more likely she is to have trouble with lambing, which is why lambing is often assisted. Multiples sometimes get their legs entangled! Or they don't come out the right way (back legs first, breech, legs bent back, head bent back...), which can lead to problems. On the other hand, single lambs are often quite a good size, so they need help just to get the head out before the lamb succumbs. Blackie males (Scottish Blackface) are born with pronounced horn buds, which can make it very difficult to push out. In other words, if lambing wasn't assisted, the losses would be quite high. Losses also occur when the mother doesn't clean the remnants of the bag off the face of the lamb quickly enough, so they asphyxiate.
Generally, Blackie singles are lambed outside (they are scanned during pregnancy so we know who's getting how many, which makes for a better feeding regime and lambing). But then, somebody will be out there most of the day to assist if necessary, and to treat the lambs as soon as they are born! Most other sheep are lambed indoors. If the weather is fine, they can go out after 1 or 2 days; unfortunately, the weather has been exceptionally cold this year, which has given us headaches as to where to put them - the sheds aren't really big enough to keep them in! A colleague told me yesterday that her father, who keeps a few sheep, had put the 16 strongest lambs outside with their mums and lost 9 of them overnight.
We have to treat the sheep for worms and diseases quite regularly, too - simply because they have to be kept in smaller areas than in Australia (land price again), so the land becomes contaminated.
I also think that associations like the RSPCA (Royal Society for the Prevention of Cruelty to Animals)
www.rspca.org.uk would have something to say about leaving so many lambs and ewes to die out there, without being attended to and put out of their misery... If a lambing goes wrong, you might lose not only the lamb, but the ewe might die an awful death, too. They have a very strong lobby amongst the general public. There are always some overly zealous folk out there who report farmers who leave their cattle outside in winter - oh dear, it's cold and the fields are muddy... Without thinking about the fact that some breeds just wouldn't do indoors... Highland cattle, for example, and other robust breeds.
Bottle feeding, by the way, doesn't really "pay". It's done more out of compassion for the animal, and generally tends to be the job of somebody who doesn't get paid for it - i.e. the farmer's wife... I offered to do it, although it's not part of my job, but I knew they wouldn't have time for it.
We've had a pretty bad season so far; and not just because of the weather, so we are more than usual stressed out. (Well, I'm not - as I said, I'm not really part of the farm staff, I just help out.) We lost 5 calves so far; three stillborn, two deformed, which had to be put down. (They are brought in some weeks before calving, so it wasn't the weather to blame.)
We lost a lot of lambs, too; that, I think, was mostly due to the bad weather in the weeks leading up to lambing. Lots of mummified lambs, and stillborn lambs; several ewes died or had to be put down just before lambing. We do see it all, so yes, it's a lot more stressfull than just waiting for the ewes to turn up with their new offspring!
Oops, I think I'd better stop my long tale. One question, though: How do male lambs get castrated nowadays? I suppose the days when the testicles got bitten off are over in Australia, too? We ring them, tails, too, and it has to be done before they are a week old.
And now I'd better go and do the evening feed - one little girl still on the bottle, the others have progressed to the bucket!