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Milk yield recording and concentrate feed ration calculation for dairy cows

  • US 4,493,290 A
  • Filed: 05/18/1983
  • Issued: 01/15/1985
  • Est. Priority Date: 05/27/1982
  • Status: Expired due to Fees
First Claim
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1. A method of determining feed concentrate rations for dairy cows, comprising the steps of:

  • (a) recording in a hand-holdable microprocessor-based recorder information relating to the cow identity of each of a plurality of cows which are to use a milking parlour,(b) entering information relating to the cow identity of each cow actually entering the parlour for a milking session, the recorder being programmed to validate the entered cow identities with the recorded cow identities,(c) entering respective milk yields in relation to respective validated cow identity entries,(d) after a milking session, connecting the recorder to a master unit, and(e) causing the master unit to read the information in the recorder as to milk yield Y for each identified cow and enter this information into a central processor programmed to compute a value of feed concentrate ration (R) for each cow according to an algorithm having the general form;

    R=V(Y-M+L(t)+C), where M, L(t) and C are values for "maintenance +", lactation period and cow condition pre-recorded for each cow in a memory of the master unit.

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