Friday, January 19, 2018

Dehydrated Calves often = Dead Calves

During periods of hot weather we seem to be quite aware of the threat of dehydration among our calves. However, it is easy to overlook the dangers of dehydration during periods of below freezing weather. 

You may want to look at this resource:
http://atticacows.com/library/newsletters/DehydrationR17169.pdf or click HERE.

The main point here are:

Why do calves get dehydrated? 

Preventing dehydration is more cost effective than treating it. 
     1. Reduce pathogen exposure.
     2. Increase immunity to pathogens. 
     3. Feed free-choice water.

Treating it requires timely measures appropriate to the degree of dehydration.


Monday, January 15, 2018

Timing Blood Draw for Checking on Passive Transfer of Immunity

It is possible to get too eager to draw blood for checking on passive transfer of immunity from colostrum feeding.

With my own calves I had a routine of collecting blood the second day they were with me. All the calves born in the previous 24 hours were delivered to my calf hutches late every morning. They then received a PM milk feeding that same day and another feeding the next morning.

After cleaning up all the milk feeding equipment I went back to the calves to feed calf starter grain. It was convenient time to draw blood on the new arrivals from the previous day. All of them had at least 24 hours since they were fed colostrum. Blood antibodies levels should have peaked.

What can go wrong?
Not waiting at least 24 hours between colostrum feeding and drawing blood.

Let's say I drew blood every afternoon, 1 or 2PM. What if a calf was fed colostrum at 6AM, moved to her hutch at 11AM and I drew blood the same afternoon?  The antibodies would not have a chance to fully migrate into the blood in that short time between 6AM and 2PM. Test results would be invalid.

The resource, Passive Transfer of Immunity: When to Test, goes over all these points. You can go to it by clicking HERE.  

Friday, January 12, 2018

Cold Weather Calf Care Checklist

What is easier than a checklist?

Zip down through the items on the list - ok, ok, ok, ok, oops - forgot about that. That is the beauty of a checklist.

If you are in a climate where it is cold this time of  year this quick checklist might help you find the weak link in your calf management. 

Click HERE for the checklist. 

Enjoy. 

Monday, January 8, 2018

Dry Calf? Good Cold Weather Management

If you do not already have a routine procedure in place to get newborn calves dry maybe you need one. 

This resource, "Drying Off a Calf." reviews:

When to dry off the calf? 

How dry is “dry”? 

Calf coats go on dry calves! 

Towels and their care.

 Drying the calf – techniques that work.

While getting a dry haircoat may not seem to be important during warm summer weather, it may make the difference between a live and dead calf in cold winter conditions.

Click HERE to go to the resource.