dun":3js5jap4 said:
farmerjan":3js5jap4 said:
The woman that does the feed rations at our feed mill is a big believer of oats in the calf rations and one of the dairy farmers that raises alot of show/sale quality holstein heifers also feeds a lot of oats. I would think that cutting the feed by 25% corn would help a little but I wouldn't use whole shell corn. I would go to a rolled corn or a cracked corn. Whole corn does not digest nearly as well and you will see alot of corn in the manure. Dairy farmers for years have done kernel processing before the corn silage goes in the silo in order to make it easier to digest, and so they get more out of it. We don't feed any whole corn to the cows; mostly all cracked in any of the rations.
The difference in digesability between whole corn and cracked corn is less then 15% The reason you see more whole corn is because the pieces are larger. If you washed away the manure and just seperated out the corn pieces you wouldn;t see much difference in total volume of corn left.
I have been to alot of dairy meetings where there is alot of talk about TDN and all. I am no expert, but I know that there isn't a dairy farmer around that will feed whole corn in a ration anymore. I cannot say that it is only a 15% increase but to hear them talk I would think that it is alot more.
I also feed Crimped oats, not whole oats in the rations. Breaking up the outer hull and fiber will make it more assimulated by animals gut tract. I am not a nutritionist but will ask at the feed mill this week when I go in. Susan has the schooling, learning, and experience to give me some answers that I am now quite curious about.