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Feb 03 2012

Grazing Cover Crops

These cattle have a great body score as they graze on December 6, 2011 in northern Indiana.

In early December, 2011 I visited two farms in Kosciusko County Indiana (NE IN) where producers had intentionally planted cover crops after their wheat was harvested for the purpose of grazing cattle and improving soil.  One of the producers planted a mixture that was featured in this blog.  His Oats/Cereal Rye/Turnip mixture looked beautiful and it appears he will have more feed than he needs to get the cattle through December without feeding much hay!  Only a severe ice storm or exceptionally wet soil would seem to prevent that from happening.  Here is a video my wife and I took from this field.

Just down the road a different farmer planted a different mixture.  His pastures were decimated by the summer drought and over grazing.  Frankly I would not have recommended the mixture he planted…only because I was not sure how the cattle would graze cover crop radishes.  His mixture was 3# Appin turnips and 3# of GroundHog cover crop radishes.  That was all…When my new farmer friend drove me by the field I did not see the cattle…and even then I was noticing a lot of bare soil (the area between all of the brassicas) and was longing to see oats or some grass species out in the field with the brassicas.  Then we found the gent that planted the field.  He was ecstatic!  The cattle were grazing both the turnips and radishes very well. His cattle had great body condition and his feed bill was way down.  My only recommendation was that he feed dry hay to the cattle along with the brassicas so that they would not end up with some health issues (acidosis, foundering, etc…).  Brassicas should not make up more than 30-35% of the diet for cattle and he was at over 80%.  Watch a video from this field.

Here is my wife in the field of cover crop radishes and Appin Turnips on Dec 6, 2011. Note the uncovered soil...that is just another reason to add oats and or cereal rye or annual ryegrass to this mixture.

 

The cattle needed more fiber in their diet so they ate a significant amount of turnip bulbs. They ate far fewer radish tubers than turnip tubers.

 It is very important to include fiber in the diet of the cattle when grazing turnips and radishes.  The forage quality of the brassica is too high for the cattle to have a healthy rumen. If the producer that planted only the brassicas had fed straw or lower quality dry grass hay the cattle would have been healthier.  I believe that is why the cattle were eating so many bulbs…they needed more fiber.

This line of straw bales were used for bedding in the barns instead of feed for the cattle in the brassica field.

 

Written by Dave Robison · Categorized: Fall Grazing, Grazing Cover Crops, Turnips, Winter Cereal Rye · Tagged: cover crops, grazing cover crops, grazing turnips, grazing turnips and cereal rye

Reader Interactions

Comments

  1. R V says

    February 9, 2012 at 10:56 am

    I am planning on getting some meat goats for the kids. What type of cover crop would benefit them? I also garden these areas in rotation approx 1/2 acre plots (3).

    RV

  2. Gene Schriefer says

    February 10, 2012 at 9:10 am

    I just completed my third season of grazing seed salad cover crops on my own farm and have been working with several of our local dairy and beef graziers about incorporating this into their rotation. Thus far the lowest RFQ has been 220. I’ve done summer mixed, cool season mixes and summer and cool season mixes together. while initial livestock experience has been skeptical, once they get a taste cattle (and sheep) cannot get enough and refuse to eat orchardgrass/red clover. Utilization with break wires appears to be 90% or more (I’ll need to do a pre/post grazing residual measure). In 2009 the first year I stockpiled an august seeding into December waiting for snowfall. 11″ snow storm hit us early december and I released the cattle. They bury their heads under a foot of snow digging out the crop.

    So far we’re pretty bullish on covers for grazing and looking at doing more. Uniformly everyone (myself included) find the ground to very mellow the following spring for seeding, feed quality, palatiblity to be excellent, but moisture (or lack of it) a limit on fall growth.

    I’ve been encouraging dairies to try cover crops for summer and early fall to aid in managing manure applications.

    I really enjoy your posts, Dave. Thanks

    Gene Schriefer
    Iowa County UWEX
    Ag/Ag Business Agent

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