Multiphase modeling of intramammary infections caused byCorynebacteriumspecies

Diagnosing intramammary infections: evaluating expert opinions on the definition of intramammary infection using conjoint analysis.

The primary purpose of this study was to develop a set of criteria to serve as a pseudo-gold standard for what constitutes an intramammary infection using data from 3 consecutive quarter milk samples taken 1 wk apart. Data from lactating cows in 90 dairy herds in 4 Canadian provinces were used to generate the data sets (profiles) used in the conjoint analysis to elicit expert opinions on the to...

Multiphase modeling of nitrate photochemistry

EVALUATION OF CEFTAZIDIME ANTIMICROBIAL ACTIVITY IN INFECTIONS CAUSED BY BURNS

In vitro evaluation of ceftazidime antimicrobial activity in infections caused by burn and its comparison to the other antibiotics is presented. In vitro tests for susceptibility to ceftazidime and other antibiotics were carried out on 744 bacterial strains collected from burn infections. The results have shown that generally ceftazidime was more active against Pseudomollas aeruginosa an...

Intramammary infections during the periparturient period in Argentine dairy heifers.

Prevalence of intramammary infections at prepartum and postpartum in primigravid heifers from five dairy herds located in the central dairy area of Argentina was determined. Mammary secretion samples from 140 heifers (560 mammary quarters) were obtained 14 days prior to the expected calving day and within 7 days after parturition and subjected to bacteriological analysis. No clinical mastitis c...

Intramammary Infections and Somatic Cell Counts across the Dry Period

Take Home Message  Use of intramammary antimicrobial dry cow treatment (DCT) is fundamental for effective mastitis control but even with the use of DCT, about 2530% of cows may have quarters that maintain chronic intramammary infections across the dry period  Quarters with chronic intramammary infections have 4 times increased risk of having clinical mastitis in the current lactation as compa...