Using Distillers Grains in the Dairy Ration
نویسنده
چکیده
The feeding of distillers grains to dairy cattle is nothing new; such products have been fed cattle for more than a century. The research article by Loosli et al. (1952) referenced an 1895 Vermont Agricultural Experiment Station Bulletin that reported on the feeding of distillers grains to lactating cows. In many respects, one might say that responses to feeding distillers grains today should be similar to those older studies. That may be correct except for some differences in both distillers grains and cows today versus yesterday. The distillers grains are different today, primarily containing more protein and energy, and today’s cows produce much more milk than was produced by their ancestors.
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Can We Feed More Distillers Grains?
Distillers grains is a very good protein source (>30% crude protein) which is high in ruminally undegradable protein and is very good energy source (NEL ~1.02 Mcal/lb of dry matter; [DM]) for lactating cows and growing cattle. The modest fat concentration (10 to 12% of DM) and the readily digestible fiber (39% neutral detergent fiber; NDF) contribute to the high energy in distillers grains. The...
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