The Optimal Valine to Lysine Ratio for Performance Parameters in Weaned Piglets
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Publication date
2021-04-27ISSN
2076-2615
Abstract
The optimal digestible (d) Valine (Val) to d Lysine (Lys) ratio (dVal:dLys) in weaned
piglets was determined using two different regression models. A total of 200 piglets were allotted to
five feeding groups and fed a corn-soybean meal based basal diet supplemented with consecutive
increasing amounts of crystalline L-valine in order to reach dVal:dLys of 0.59, 0.63, 0.67, 0.71, 0.75
in the pre-starter (0–13 days) and 0.57, 0.62, 0.66, 0.70, 0.75 in the starter phase (13–43 days). In the
starter phase and during the whole period, supplementing the basal diet with L-valine resulted
in an improvement in body weight gain and feed intake. An exponential asymptotic (EA) and a
curvilinear-plateau (CLP) regression model were fit to feed intake and body weight gain data. The
estimated dVal:dLys for body weight gain was found to be 0.68 (EA, 95% of maximum response)
and 0.67 (CLP) in the starter phase and 0.65 (EA, 95% of maximum response and CLP) in the total
trial period. It is concluded that the supplementation of a valine-deficient basal diet for weaned
piglets with L-valine improves the piglet’s weight gain and feed intake and that a dVal:dLys of 0.68 is
recommended to optimize body weight gain.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
636 - Animal husbandry and breeding in general. Livestock rearing. Breeding of domestic animals
Pages
10
Publisher
MDPI
Is part of
Animals
Citation
Siebert, Diana, Daulat Rehman Khan, and David Torrallardona. 2021. "The Optimal Valine To Lysine Ratio For Performance Parameters In Weaned Piglets". Animals 11 (5): 1255. doi:10.3390/ani11051255.
Program
Nutrició Animal
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2831]
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/