Influences of dietary protein level, amino acid supplementation and environmental temperature on performance, body composition, organ weights and total heat production of growing pigs1

2003 ◽  
Vol 81 (8) ◽  
pp. 1998-2007 ◽  
Author(s):  
B. J. Kerr ◽  
J. T. Yen ◽  
J. A. Nienaber ◽  
R. A. Easter
Keyword(s):  
Body Composition ◽  
Amino Acid ◽  
Heat Production ◽  
Dietary Protein ◽  
Protein Level ◽  
Environmental Temperature ◽  
Amino Acid Supplementation ◽  
Organ Weights ◽  
Acid Supplementation ◽  
Dietary Protein Level

scholarly journals Effects of dietary protein level and amino acid supplementation on performance of mixed-parity lactating sows in a tropical humid climate1

2009 ◽  
Vol 87 (12) ◽  
pp. 4003-4012 ◽  
Author(s):  
B. A. N. Silva ◽  
J. Noblet ◽  
J. L. Donzele ◽  
R. F. M. Oliveira ◽  
Y. Primot ◽  
...  
Keyword(s):  
Amino Acid ◽  
Dietary Protein ◽  
Protein Level ◽  
Amino Acid Supplementation ◽  
Acid Supplementation ◽  
Dietary Protein Level ◽  
Lactating Sows

scholarly journals 118 Functional amino acid supplementation, regardless of dietary protein content, improves growth performance, acute-phase response, and bacterial shedding in Salmonella-challenged pigs

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 99-100
Author(s):  
Lucas Rodrigues ◽  
Michael O Wellington ◽  
Jack E Krone ◽  
Caroline González-Vega ◽  
John K Htoo ◽  
...  
Keyword(s):  
Amino Acid ◽  
Growth Performance ◽  
Dietary Protein ◽  
Protein Level ◽  
Interactive Effect ◽  
Average Daily Gain ◽  
Growing Pigs ◽  
Post Inoculation ◽  
Amino Acid Supplementation ◽  
Dietary Protein Level

Abstract The present study investigated the interactive effect of functional amino acid (AA) supplementation and dietary protein level on growth performance and immune status in Salmonella-challenged pigs. Thirty-two growing pigs (8 pigs/treatment; 13.9 ± 0.82 kg initial body weight) had ad libitum access to 1 of 4 experiment diets in a 2×2 factorial arrangement with factors of dietary protein (LP: Low, 16% protein vs. High: HP, 20% protein) and 2 levels of functional AA supply (AA-: basal vs. AA+: Thr, Met, and Trp provided at 20% above requirement). After 7 d of adaptation, pigs were orally inoculated with saline containing Salmonella typhimurium (ST). Performance parameters [average daily gain (ADG), feed intake, and gain:feed (GF)] were measured in the pre- and post-inoculation periods. Blood samples were collected on d0, 4 and 7 post-inoculation for serum haptoglobin and albumin analysis. Shedding of ST (d1, 2, 4 and 6 post-inoculation) and quantification in digesta (ileum, cecum and colon; d7 post-inoculation) were analyzed. There was no effect of diet on pre-inoculation performance (P > 0.05). Pigs fed AA+ showed increased ADG (0.457 vs. 0.298 ± 0.051 kg/d; P < 0.05) and a trend for improved GF (0.67 vs. 0.40 ± 0.07 kg/kg; P < 0.10) post-inoculation compared to AA- regardless of dietary protein level. Feeding AA+ increased overall albumin levels (35.7 vs. 34.2 ± 0.9 g/L; P < 0.05) and decreased overall haptoglobin levels (1.64 vs. 1.81 ± 0.12 g/L; P < 0.05) and decreased overall shedding score of ST (2.27 vs. 2.51 ± 0.09; P < 0.05) compared to AA-. The ST counts in cecal digesta increased (2.78 vs. 2.23 ± 0.18 Log10 cfu/g; P < 0.05) in pigs fed HP compared to LP-fed pigs and ST counts in colon were reduced (2.08 ± 0.18 vs. 2.61 ± 0.19 Log10 cfu/g; P < 0.05) in AA+ compared to AA- pigs. Supplementation of diets with specific functional AA improved performance and health status of pigs when exposed to an enteric disease challenge.

Effects of reduced protein level and dietary amino acid supplementation on growth, body composition and intestinal morphometry of silver catfish ( Rhamdia quelen )

2020 ◽  
Vol 51 (12) ◽  
pp. 4925-4937
Author(s):  
Thamara Luísa Staudt Schneider ◽  
Emerson Giuliani Durigon ◽  
Nilce Coelho Peixoto ◽  
Juliano Uczay ◽  
Mabel Molinari ◽  
...  
Keyword(s):  
Body Composition ◽  
Amino Acid ◽  
Protein Level ◽  
Amino Acid Supplementation ◽  
Acid Supplementation ◽  
Silver Catfish ◽  
Rhamdia Quelen ◽  
Dietary Amino Acid ◽  
Intestinal Morphometry
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