Dairy Digest, October 2005
—
filed under:
Dairy Digest Archive
In this Issue: The Johne's ELISA – What it Can (and Can't) Tell You; More Comfortable Dairy Cattle Freestalls; Identify Open Cows Early to Reduce the Interservice Interval; Online DHIA Record Analysis Workshop Update
- The Johne's ELISA: What it Can (and Can’t) Tell You
- A very commonly used test for Johne’s Disease in cattle is the Enzyme-Linked Immuno-Sorbent Assay (ELISA). This test can rapidly be done on serum, plasma or milk and is relatively inexpensive when compared with other tests such as fecal culture or the Polymerase Chain Reaction (PCR) test. A number of different ELISA tests are available from different manufacturers.
- More Comfortable Dairy Cattle Freestalls
- Advancements in dairy cattle housing continue to focus on enhancing cow resting areas.
- Identify Open Cows Early to Reduce the Interservice Interval
- Failure to observe and record heats for those cows that failed to conceive to the initial breeding frequently results in long interservice intervals.
- Online DHIA Record Analysis Workshop Update
- The online DHIA Record Analysis Workshop continues to grow. The program released in January 2005 now has 23 students and 3 graduates representing five countries and thirteen US states. ARPAS and PA VMA members can receive CEU credits for course completion.
