Estimating the optimal threonine requirement for 25–50 kg pigs fed a mixture of soluble and insoluble dietary fibre

M.O. Wellington; J.K. Htoo; A.G. Van Kessel; D.A. Columbus

doi:10.1139/cjas-2018-0218

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M.O. Wellington,¹ J.K. Htoo,² A.G. Van Kessel,¹ D.A. Columbus^1,3,*,**

¹Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada.
²Evonik Nutrition & Care GmbH, Rodenbacher Chaussee 4, Hanau-Wolfgang 63457, Germany.
³Prairie Swine Centre, Inc., Box 21057, 2105 – 8th Street East, Saskatoon, SK S7H 5N9, Canada.

^*Corresponding author: Daniel Columbus (email: dan.columbus@usask.ca).
^**D.A. Columbos currently serves as an Associate Editor; peer review and editorial decisions regarding this manuscript were handled by Tofuko Woyengo.

Abstract

A study was conducted to estimate the threonine (Thr) requirement of pigs fed high-fibre diets. Average daily gain (ADG) and gain to feed (G:F) were linearly and quadratically increased (P < 0.01) with increasing dietary Thr. Linear and quadratic breakpoint models estimated 0.76% and 0.80% standard ileal digestible Thr to maximize ADG and 0.76% and 0.81% to maximize G:F, respectively.

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Citation Download Citation

M.O. Wellington, J.K. Htoo, A.G. Van Kessel, and D.A. Columbus "Estimating the optimal threonine requirement for 25–50 kg pigs fed a mixture of soluble and insoluble dietary fibre," Canadian Journal of Animal Science 99(3), 634-638, (5 March 2019). https://doi.org/10.1139/cjas-2018-0218

Received: 13 November 2018; Accepted: 28 February 2019; Published: 5 March 2019