We started out with just 5 to 10 minutes at a time on the new grass and increased that gradually...no problems, but noticed clumpier poops. Today is about their 5th day on the grass and they were out longer than usual...not sure when it's okay to leave them longer.
Just went out and checked them again and yes...their stomachs are down to normal, so the drench was the way to go. I've read that severe bloat can kill them in 12 hours, so was not willing to take the chance.
I grew up on a cattle farm and I remember once when a rodent had chewed a wooden corner off the grain shed and oats poured out while we were away, and when we came home several cows were bloated and my Dad used a "punch" tool and actually went through the skin to the bloat and I could hear the gas loudly coming out...made quite an impression on me. I don't believe I could do that to a sheep and will avoid bloat now big time. Never had a problem in previous years, but this past winter and this early spring/summer is different.
While we were drenching we could hear the sheep's stomachs make strange gurgling sounds...wonder if that means a burping and farting fest in the sheep area tonight? Just glad they are all looking normal again.
Again I wonder if having baking soda out for them to take as they want or need would be helpful? Some sites say yes when you start them on fresh grass.