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The optimal threonine:lysine ratio to maximize growth performance of nursery pigs
Conference paper
Publication Date:
2001
Conference:
Swine Day, Manhattan, KS, November 15, 2001
Starting Page:63 , Ending Page:
66
Publisher:Kansas State University. Agricultural Experiment Station and Cooperative Extension Service
Starting Page:
Publisher:
Files in this item
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Abstract:
A total of 210 pigs (initially 18.2 lb and
25 d of age) were used in a 21-d growth assay. The seven treatments consisted of a
basal diet (14.1% CP) with increasing levels
of threonine (45, 50, 55, 60, 65, and 70% of
1.07% apparent digestible lysine) and a
negative control containing 0.97% lysine.
Increasing dietary threonine improved feed
efficiency; however, there was no improvement
in growth performance between pigs fed 0.97 and 1.07% apparent digestible lysine. Therefore, these results suggest the
requirement for apparent digestible threonine is approximately 60% of lysine for 18- to 40-lb pigs.
Keywords: Swine; Threonine; Lysine; Nursery pigs
URL for this item:
http://hdl.handle.net/2097/2592