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Evonik Animal Nutrition

Effects of Dietary Protein Content and Crystalline Amino Acid Supplementation Patterns on Growth Performance of Weaned Pigs Raised Under Different Sanitary Conditions

Published: March 11, 2021
Summary
The objective of this experiment was to determine the effects of dietary crude protein (CP) content and crystalline amino acids (CAA) supplementation patterns on the growth performance of weaned pigs under clean (CSC) or unclean sanitary conditions (USC). One hundred forty-four piglets (6.35 ± 0.63 kg BW) were housed under CSC or USC for 3 wk and assigned to 1 of 3 diets: a high CP (HCP; ...
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Authors:
Martin Nyachoti
University of Manitoba
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Chengbo Yang
University of Manitoba
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John Htoo
Evonik Animal Nutrition
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Caroline Gonzalez-Vega
Cargill
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Influencers who recommended :
Balachandar Jayaraman
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Juarez Donzele
Universidade Federal de Viçosa - UFV
14 de marzo de 2021

Dr. Nyachoti, as the possible basis for the results obtained was lacking, with the presentation of only the summary, there were some doubts that I believe are important. Taking advantage of his vast experience in the subject, he would like to make the following considerations. FIRST; I believe that, in the case of a study involving different sanitary conditions, it would be interesting to evaluate some parameters of the animals' immune system, in order to characterize the efficiency of the challenge methodology used. SECOND; as food consumption did not vary between treatments, the best feeding efficiency of animals in an unchallenged environment should not improve their weight gain. In this specific case, even if this possible improvement is not significant, it could not be presented as a percentage of increase.

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