Oh, yes, I love the good nature of the Saanens. I have LaManchas and Oberhaslis for the same reason, they are calm, quiet, loving, and just plain sweet. I like those floppy ears on the Nubians, but I can't take the noise level! I've been owned by Saanens off and on in the past, and never had a bad one.
I've been to shows where the judge had a mike at her disposal, and never needed it until she got to the Nubians! Couldn't hear a word over the goats yelling without it.
(Still, I'm partial to my LMs and Obers.

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Back to the original question. You could try using lights to trigger heat off season. You keep the lights on until March or so, simulating the longer days of summer, then decrease the amount of light available to simulate the shortening days of fall. It's supposed to bring the does into heat for off season breeding. Seems like a lot of work to me, but I know of dairies that need year-round production using it successfully. For myself, if I want year-round milk, I just make sure at least one doe is bred early in the fall season and one is bred late - like December or even early January - which gives me at least some milk year-round. It does spread out the kidding season and the bottle feeding, etc, which can be a good or a bad thing, depending. HTH.