Milk Production for Ohio Dairy Herds

Dr. Maurice Eastridge, Extension Dairy Specialist, The Ohio State University

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 protein and fat 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 average production of milk, and proportions of fat and protein by breed for Ohio dairy herds in 2011 using the Dairy Herd Improvement (DHI; http://www.dhiohio.com) program are provided in the 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.

Table 1.  Number of herds, milk yield, milk fat, and milk protein by breed for Ohio herds on DHI during 2011.

Breed

Number of Herds

Milk (lb/lactation)

Milk fat (%)

Milk protein (%)

Ayrshire

8

16,274

3.81

3.21

Brown Swiss

16

19,453

4.06

3.41

Guernsey

10

15,900

4.50

3.37

Holstein

354

23,372

3.66

3.05

Jersey

60

16,535

4.86

3.65

Mixed

49

17,720

3.98

3.29