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Southwest MN | The scan data you share is exceptional considering genetics and hands off management style. A customer of ours has a hair sheep flock as well and has had similar results. The input costs he tells me has my attention for sure let alone the return for lightweight 80# market lambs he is running a hair ewe base and Polypay rams as terminal sires.
The rotational grazing was key to our operation for grazing as I got busier and more ewes it became less practical now we only graze our ram battery and an occasional breeding group the 45 day rest was crucial to our success as well. Should in theory be as close to perfect as you can come. But the longer you can make your rest periods the better off you will be within reason.
Concerning part, I see is in an aggressive system that you are running finding rams in the future that do not set your progress back would be my biggest concern. You may want to start selecting some maternal animals to run as your own seed stock operation to help with your own genetic diversity now.
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Lambing Wreck
