Effects of source and level of dietary neutral detergent fiber on feed intake, ruminal digestion in situ, and total tract digestion in beef cattle fed pelleted concentrates with or without supplemental roughage

Article Abstract:

The effect of a dietary source of neutral detergent fiber (NDF) on feed ingestion, ruminal fermentation and digestion in steers fed with hay, corn cobs or alfalfa cubes was evaluated. Results showed that the NDF source did not affect nutrient digestibility. However, rumen fermentation and nutrient availability were affected by the source of NDF due to dietary differences and the steers' selective ingestion of feed. Careful evaluation of the effects of dietary formulation on animal health and productivity is recommended before selecting a diet regimen for domestic animals.

author: Marshall, S.A., Campbell, C.P., Mandell, I.B., Wilton, J.W.
Rumen fermentation

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Effects of source of dietary neutral detergent fiber on chewing behavior in beef cattle fed pelleted concentrates with or without supplemental roughage

Article Abstract:

The influence of source and amount of neutral detergent fibers on mastication of steers during feed ingestion and rumination was evaluated. Results showed that chewing activities during feeding decreased in corn cob-fed steers and mastication during rumination decreased in both the corn cob- and alfalfa cube-fed beef cattle. This indicates that corn cob and alfalfa cubes are deficient in effective fiber which stimulates saliva secretion and ruminal functions.

author: Marshall, S.A., Campbell, C.P., Mandell, I.B., Wilton, J.W.
Alfalfa as feed, Alfalfa feeds, Corncobs

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Roughage level and limited maximum intake regimens for feedlot steers

Article Abstract:

The effects of controlled roughage levels and ad libitum access to feed were evaluated in a study of feedlot steers. Results show that in the mid-finishing period, steer performance is not affected by lowering the roughage content of the finishing diets. The process lessens roughage use and cost of feeding. Furthermore, it was shown that stability in feed intake can be achieved by regulating the maximum steer feed intake.

author: Preston, R.L., Bartle, S.J.
Research, Evaluation, Animal feeding and feeds, Feedlots, Factory farms

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subjects list: Physiological aspects, Food and nutrition, Beef cattle, Animal nutrition, Dietary fiber, Fiber in animal nutrition
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