J. Capper

... 25% 35% 65% “Dilution of Maintenance” .92 Mcal/lb .80 Mcal/lb Energy Efficiency Source: Created as an example by Jude Capper, WSU & Roger Cady, Elanco, 2010 based on AMTS dietary needs for a 1,500 lb Holstein Dairy Cow, 3.8%F, 3.1%P DBM0538 60 lb 2007 1944 ...

Coagulase-negative staphylococci (CNS) are the most common pathogens associated with intramammary infections (IMI) in dairy cows. We hypothesized that postmilking teat disinfection would reduce microbial colonization of the teat canal and thus reduce the prevalence of IMI caused by certain CNS species. The efficacy of iodine postmilking teat dip was tested against CNS colonization of the teat canal, and incidence of IMI was measured. Using an udder-half model, 43 Holstein cows at the Washington State University Dairy were enrolled in the trial; postmilking teat dip was applied to one udder-half, treatment (TX), and the remaining half was an undipped control (CX). Teat canal swabbing and mammary quarter milk samples were taken in duplicate once a week for 16 wk for microbial culture. Isolates from agar cultures were presumptively identified as CNS and then speciated using PCR-RFLP and agarose gel electrophoresis. Colonization of the teat canal and IMI by CNS were assessed. Thirty CNS...