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Holo-analysis of the efficacy of acids as pronutrients in pig nutrition

Published online by Cambridge University Press:  21 November 2017

G. Rosen
G. Rosen*
Affiliation:
Arkansas University, Fayetteville, United States Mississippi State University, Starkville, United States
*
Email:[email protected]
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Extract

Bans on the prescription-free use of pronutrient antibiotics in pig production have stimulated searches for efficient replacements. Previous reviews on the efficacy of acids in pig feeds have been selective. Ravindran & Kornegay (1993) was restricted to 13 weaner tests on citric and eight on fumaric acids and Partanen (2001) excluded acid blends and feeds with antibiotics or copper, in reviewing 46 weaner and 23 finisher tests on formic, fumaric, citric and propionic acids and potassium diformate, but only at dietary levels ≤2.5g/kg feed. This holo-analysis covers acids and salts as acid precursors and their admixtures by elaborating empirical models for feed intake, liveweight gain, feed conversion efficiency and mortality effects in weaners and grower/finishers. The acids studied in the holo-analysis of nutritional response data from 658 negatively-controlled tests are mainly organic, with a minor proportion (5.0%) of inorganic, phosphoric, hydrochloric and silicic.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2008 , 2008 , pp. 85
Copyright
Copyright © The British Society of Animal Science 2008

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References

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