
07/03/06, 09:11 AM
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Join Date: May 2002
Location: New York bordering Ontario
Posts: 4,778
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Bear in mind what I know about lactation comes from cows, although the physiology of lactation probably doesn't vary much from one species to another.
If you go to once a day milking you will shorten the lactation. The animal's body sees that as the kids aren 't drinking as much, so they must be older and don't need it. Use it or you lose it. It doesn't happen over night, of course, and if you aren't using that much milk, and aren't going to need it in the future of that animal's lactation, then it's not a problem.
However, other things happen with this as well. For one thing, if you have a subclinical (can't see it) mastitis in the herd, this can cause it to bloom forth. Even if you don't get mastitis, the milk that you get once a day will have a higher somatic cell count. That doesn't bother most people, farm people least of all, but it's a point. SS's are the white cells that combat disease. The milk will also be higher fat and solids, so there's that to consider. Again, may not be that noticeable to you.
As far as early dry off contributing to smaller amount in the next lactation, this is true for cows, but I don't know that this is a big deal for the home milker. It's not going to be a huge percentage difference, but in a commercial dairy you would definitely avoid this if at all possible, because lots of times your income will be greatly affected by this small stuff that adds up.
If you are going to do it, I would drop the grain down for a day or two until you see a drop in production and then go to once a day. Let them adjust to making a smaller amount of milk first and it will be easier on their udders.
Remember, I come from a cow perspective so there may be differences that others can point out, but I don't think I'm steering you wrong.
Jennifer
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-Northern NYS
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