Mastitis control program: effect of milk production

A 3 year study of 24 commercial dairy herds measured the value of hygiene and dry cow therapy in the reduction of infection and change in milk production. Infection dropped from 28.1 percent to 7.1 percent of the quarters. Herds on the mastitis control program produced an average of 477 kg of milk per cow more per year for each for the 3 years than average herd after adjustment for differences in initial production. Presence of organisms in the udder caused the greatest decrease in milk production while the genus of organism affected the loss. Quarters infected with Staphylococcus aureus produced approximately 760 kg less milk per lactation than uninfected quarters. Reduction in milk production was most severe when infections began during early lactation

Bibliographic Details

Main Authors:	98611 Natzke, R.P., 66109 Everett, R.W., 74707 Guthrie, R.S., 82771 Keown, J.F., 92818 Meek, A.H., 93806 Merrill, W.G., 111412 Roberts, S.J., 117009 Schmidt, G.H.
Format:	biblioteca
Published:	1972
Subjects:	MASTITIS, PRODUCCION DE LECHE, SALUD ANIMAL, PERDIDAS, CONTROL DE ENFERMEDADES,
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