Source: CVC IN SAN DIEGO PROCEEDINGS
November 1, 2010
By:
Dan Grooms, DVM, PhD
More than 60 years ago an enteric disease of cattle was described in North America that was characterized by outbreaks of diarrhea and erosive lesions of the digestive tract.17 The disease was called bovine viral diarrhea virus or BVD. The virus causing BVD was named bovine viral diarrhea virus (BVDV).
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Source: CVC IN SAN DIEGO PROCEEDINGS
November 1, 2010
By:
Virginia R. Fajt, DVM, PhD
Traditionally, we have assumed that if a bacterial pathogen is "susceptible" to an antimicrobial, we just use the dose on the bottle or in a formulary, and the infection will be eliminated. The increasing incidence of "resistant" pathogens, i.e., pathogens requiring high concentrations of antimicrobials such that they become untreatable, has focused attention on identifying ways to reduce the selection for resistant organisms.
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Source: CVC IN SAN DIEGO PROCEEDINGS
November 1, 2010
By:
Dan Grooms, DVM, PhD
Mycobacterium avium subspecies paratuberculosis (MAP), the causative agent of Johne's Disease (JD), is prevalent worldwide. The NAHMS Dairy 1996 study, estimated 21.6% of the dairy herds in the US were infected with MAP, resulting in annual economic losses for the dairy industry of $200-250 million.
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Source: CVC IN KANSAS CITY PROCEEDINGS
August 1, 2010
By:
Michael D. Apley, DVM, PhD, DACVCP
The capacity to experience pain is considered to have a protective role by eliciting behavioral responses aimed at reducing further tissue damage and enhance wound healing. However, persistent pain syndromes offer no biological advantage and are associated with suffering and distress.
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Source: CVC IN KANSAS CITY PROCEEDINGS
August 1, 2010
By:
Michael D. Apley, DVM, PhD, DACVCP
In this session we will take an evidence-based medicine approach to ancillary therapy of bovine respiratory disease. The literature reviewed here is not presented as being all-inclusive, but rather as a summary of many commonly cited articles on these subjects. The citations are primarily peer reviewed, but some are from freedom of information (FOI) summaries and a few are proceedings papers or abstracts.
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Source: CVC IN KANSAS CITY PROCEEDINGS
August 1, 2010
By:
Virginia R. Fajt, DVM, PhD
Bovine respiratory disease complex includes bacterial components, which cause the classic clinical signs of lethargy, depression, and fever, with variable nasal discharge, cough, or other signs. This bacterial component of BRD (most commonly Mannheimia haemolytica, Pasteurella multocida, Histophilus somni, and Mycoplasma bovis) may be treated with antimicrobial drugs designed to kill or inhibit the growth of the pathogenic bacteria.
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Source: CVC IN KANSAS CITY PROCEEDINGS
August 1, 2010
By:
Virginia R. Fajt, DVM, PhD
At the time of this writing, the focus on farm animals by the media (and likely therefore consumer perception) seems to be on antimicrobial use in animal agriculture and on farm animal welfare.
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Source: CVC IN KANSAS CITY PROCEEDINGS
August 1, 2010
By:
Virginia R. Fajt, DVM, PhD
Recently, the use of antimicrobials in food animals has been scrutinized by the general public, by federal legislators, and by public health organizations. Some of these concerns relate to the use of antimicrobials as growth promotants, while some relate to the use of antimicrobials in food animals in general.
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Source: CVC IN KANSAS CITY PROCEEDINGS
August 1, 2010
By:
Robert Larson, DVM, PhD, DACT, DACVPM
Because one goal of proper heifer development is to improve second parity pregnancy percentage, a beef producer may ask "what is the impact of higher pregnancy percentages during the second breeding season on costs and income?" Table 1 displays the effect of changing pregnancy percentage for first-calf heifers in 5-percentage point increments on the percent of the herd that must be replaced each year and the average age of the herd. In general, given the assumptions in the table, for every 5-percentage point improvement in first-calf heifer pregnancy percentage, the number of replacements needed for the herd decreases by about 1 percentage point and average cow age increases by .01 years.
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