Ruminal and postruminal carbohydrate utilization in steers fed processed sorghum grain

McNeill, J.W. and Potter, G.D. and Riggs, J.K. (1971) Ruminal and postruminal carbohydrate utilization in steers fed processed sorghum grain. Journal of Animal Science, 33 (6). pp. 1371-1374.

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Four yearling Angus steers fitted with permanent abomasal fistulas were used in a 4 × 4 latin square experimental design to measure relative sorghum grain carbohydrate digestion in different segments of the digestive tract, and to study the effects of various methods of grain processing on starch utilization in the rumen and/or postruminal digestive tract. Processing methods studied were: dry-ground, steam-flaked, reconstituted-ground and micronized. The location of maximum starch digestion varied with processing method. Total starch digestibility was significantly improved (P<.05) by steam-flaking and reconstitution relative to other treatments. Also, ruminal starch digestion was significantly (P<.05) greatest in steers fed steam-flaked and reconstituted grain. In steers fed dry-ground and micronized grain, ruminal starch digestion was impaired and postruminal digestion failed to completely compensate for the reduced ruminal starch fermentation. The difference observed in total carbohydrate digestibility was not significant (P>.05)

Item Type: Article
Author Affiliation: Texas A&M University, College Station 77843
Subjects: Crop Improvement > Seed Technology
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 06 Jul 2012 10:14
Last Modified: 06 Jul 2012 10:16
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