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Milk production of Ohio dairy herds

It is always important to monitor the yield of milk and the composition of milk, especially for the individual farmer, because the income of the dairy farm depends on this source of revenue. The yields of fat and protein are the primary determinants of the price received by farmers. The proportions of fat and protein are useful in monitoring cow health and feeding practices within a farm. The income over feed costs (IOFC) and feed costs per hundred of milk are important monitors of costs of milk production.

The average production of milk, fat, and protein by breed for Ohio dairy herds in 2016 and 2017 using the Dairy Herd Improvement (DHI; http://www.dhiohio.com) program are provided in Table 1. Not all herds on DHI are included in the table below because of the different testing options offered by DHI, some herds opt for no release of records, lack of sufficient number of test dates, and given that some of the herds consist of other breeds than the ones shown. In comparison, the average of milk yield for all cows (263,000) in Ohio for 2017 was 21,259 lb.

Table 1. Number of herds, milk yield, milk fat, and milk protein by breed for Ohio herds on DHI during 2016 and 2017.

Breed Number of Herds Milk (lb/lactation) Milk fat (%) Milk protein (%)
  2016 2017 2016 2017 2016 2017 2016 2017
Ayrshire 9 6 16,919 16,145 3.83 4.00 3.25 3.25
Brown Swiss 17 16 20,216 19,840 4.22 4.25 3.45 3.49
Guernsey 6 5 17,606 17,063 4.73 4.76 3.41 3.45
Holstein 272 245 25,202 25,625 3.69 3.87 3.08 3.18
Jersey 62 62 17,600 17,865 4.85 4.82 3.65 3.58
Mixed 24 21 23,481 24,441 3.90 4.02 3.21 3.22

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