Mastitis Prevalence in Primigravid Heifers at Parturition

Changes in Body Measurements of Heifers at First Parturition

Epidemiology of Mastitis in Peripartum Dairy Heifers

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Mastitis in Heifers: Prevalence, Strategy for Control during the Periparturient Period, and Economic Implications

Intramammary infections in breeding age and pregnant heifers are much higher than previously thought. Many of these infections can persist for long periods of time, are associated with elevated somatic cell counts, and likely impair mammary development during gestation and affect milk production after calving. Prepartum intramammary antibiotic infusion of heifer mammary glands a few weeks befor...

Prevalence, Risk Factors, and Strategies for Controlling Mastitis in Heifers During the Periparturient Period

Intramammary infections (IMIs) in unbred and pregnant dairy heifers were once thought to be very infrequent. However, during the last 2 decades, several studies have shown that IMIs in heifers occur frequently during the prepartum and peripartum periods. Many of these infections can persist for long periods of time, may be associated with elevated somatic cell counts (SCC), and may impair mamma...

Prevalence of mastitis in dairy heifers and effectiveness of antibiotic therapy.

Dairy heifers were treated 0 to 90 d, 90 to 180 d, or 180 to 270 d prepartum with one of five different antibiotic products to determine the best time and with which product they should be treated prior to calving. Two hundred thirty-three heifers were included in the study. At the initial sampling, 56.5% of quarters were infected with some type of organism and 15.4% of quarters were infected w...