Value of Aspen Sawdust as a Roughage Replacement in High-Concentrate Dairy Rations
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چکیده
منابع مشابه
Roughage Levels in Feedlot Rations
vitro digestibility tended to be greater with ammoniation. In the second trial, very high levels of ammonia, urea or glucose were added. Levels of insoluble protein were much higher in this trial than the other. This reflects the high variability of corn silage. Recovery of nitrogen added as ammonia averaged 82 percent while all of the nitrogen added as urea was recovered. The amounts of insolu...
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Raising dairy heifers from birth to calving has been found to comprise the second largest expense on the dairy farm towards the production of milk, while deriving no revenue until the onset of lactation (Heinrichs, 1993). Therefore, many experiments involving dairy heifers have focused on ways to minimize the costs associated with the growth period or decreasing the unproductive period of the a...
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Maki, Leroy R. (University of Wyoming, Laramie), and Kay Picard. Normal intestinal flora of cattle fed high-roughage rations. J. Bacteriol. 89:1244-1249. 1965.-Intestinal bacteria were isolated from 15 cattle. Approximately 600 isolates were studied, and their presence and numbers in the duodenum, ileum, cecum, and colon were noted. Bacteria most frequently isolated from all parts of the intest...
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Growth of the corn ethanol industry has created a need for alternatives to corn for lactating dairy cows. Concurrent expansion in soydiesel production is expected to increase availability and promote favorable pricing for glycerol, a primary co-product material. The objective of this study was to determine the feeding value of glycerol as a replacement for corn in diets fed to lactating dairy c...
متن کاملIonophores in Dairy Rations
Introduction Ionophores have been used extensively in the beef industry in Canada since 1977. Until recently, there has been no label indication for use of ionophores in lactating dairy cattle. Ionophores are feed additives that alter rumen microbial populations through ion transfer across cell membranes. In Canada, the label warning prohibiting the use of Rumensin premix in lactating dairy ca...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1973
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(73)85349-4