6. Dairy Herd Health Flashcards
What are some tips you should give to your producer for dairy calf management?
Keep area clean and dry
Remove from cow ASAP
Dip navel 7% iodine
Colostrum - quality, quantity, timing and feeding
How much colostrum should a calf get and by when?
4 quarts in 4 hours
What can you use to measure colostrum quality?
Colostometer, Brix refractometer, TP
What are the good measures of calf immunity:
-Serum immunoglobulin
-Total serum protien
Serum immunoglobulin: >1000mg/dl ok, >1500mg/dl better
Serum protein
>5mg/dl ok, >5.5mg/dl better
When testing calves to show tp or passive failure who should you test?
Not sick ones (dehydration ruins your point)
How much IgG should be in a colostrum replacer vs supplement? Which costs more but works best?
Supplement 30-50g
Replacer 125g
Replacer more expensive but what they need
When should you use colostrum replacer?
Not enough from mom
-Infectious disease prevention (jones, BLV, Mycoplasma)
What are the 2 factors involeve with illness of calves?
Immune status
Disease Exposure
What are the key players in herd health?
Biosecurity
Weather
Housing
Nutrition
Vaccination
What are the goals of herd health?
Raise resistance and reduce the challenge
When should you give a vaccine?
Before the challenge
-Preweaning (2 week before great)
Will all animals respond to vaccination?
No, it is a bell curve response where some will more than respond and some will do nothing
What are some common parasites of dairy cattle?
Coccidia - 30d-2yr, stress (weaning)
ostertagia - economic, graze -3yr
When should you deworm dairy heifers?
April to may
What should you always put in a dairy heifers feed? What are some examples of it?
Coccidiostat
Monensin and lasalocid
T/F Enough disease challenge can overwhelm any vaccination program
Ture
What is critical to ensuring sucess of a MLV vaccine?
Viable when administered
No disinfect multidose syringe
Out of light
How do you optimize vaccination?
Handle well
-no temp abuse
-no ultraviolet light
-no disinfectants
What are the goals of a vaccination protocol?
Promote repro efficiency
promote health
promote colostral immunity
What should be performed at dairy herd health visits?
Palpation
Record Analysis
SOP Check
What is the most important cow to plapate?
Open cow - need to get semen in her
