Dairy Center Research Projects. Information about studies included in this presentation:. The conclusions presented in this Power Point are general conclusions. We encourage producers to research more thoroughly on these topics. We are presenting the information for general use only. .
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CONCLUSION – Skin testing is a simple, effective and inexpensive way to test for Johne’s in a herd
60 calves were assigned to 1 of 4 calf starter treatments. Daily monitoring of calves was used to evaluate the starters for 10 weeks.
Blood samples were then frozen and sent to ISU for evaluation.
This calf program showed:
Other Economic Considerations for an Early Weaning program:
Study looked at:
P < .1
6X for 14d
4 # increase
NO DIFFERENCE BETWEEN GROUPS for body condition score, teat ends or CMT quarter testing!
CONCLUSION: Cows milked 6 times a day for the first 14 days of lactation averaged a 4 pound increase. Multiple milkings did not have to be evenly spaced – milking fresh cows at the beginning and end of milking shifts was effective.
TO DIP OR NOT TO DIP IN WINTER?
THAT IS THE QUESTION.
CONCLUSION: ASC Barrier dip was the most effective winter teat dip at the time of this study.
CONCLUSION: The bedded pack did not heat as expected, but the cold, wet compost proved comfortable for the cows. There was a lot of bedding and dirty, content cows. There were very low ammonia and other gas levels.
Study looked at:
CONCLUSION: Calcium levels were the same in both groups, so milk fever levels were the same. It is generally recommended that older cows have a dry period as it hard on them physically not to. (see graph, next slide)
No dry period
Normal dry period
-6 to -4
-3 to -1
0 to 1
2 to 3
Days Around Calving