
03/09/12, 10:17 PM
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Join Date: Jan 2005
Posts: 2,808
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It all depends. Where's she coming from? Why were they selling her? Of course, they won't tell you of problems.
A cow can have problems that aren't obvious. Problems rebreeding, or problems with milk fever after calving, that gets worse with age. Or chronic mastitis, as with staph, that won't get better with treatment - just lower production.
In alot of serious dairies, cows only last a couple of years of milking, so a 6 year old cow is done. Culled for many reasons.
I bought a 5 year old Jersey from a dairy which I discovered upon freshening had chronic mastitis they then admitted they had treated, but not cured.
I've seen various train wrecks here in older Jerseys. I prefer getting a heifer, which is more likely to not have problems yet. And has more years of production ahead of her.
I like to divide the purchase price by the years of production. If you can get a heifer for $1200 and get 6 years of production, or pay $1200 for a older cow that gives 3 years of production, which is the better deal?
Few things get better with age - higher risk of milk fever and mastitis, etc.
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