Low Crude Protein Corn and Soybean Meal Diets with Amino Acid Supplementation for Broilers in the Starter Period 1. Effects of Feeding 15% Crude Protein

2012 ◽  
Vol 11 (3) ◽  
pp. 161-165 ◽  
Author(s):  
E. McGill ◽  
A. Kamyab ◽  
J.D. Firman
Keyword(s):  
Amino Acid ◽  
Soybean Meal ◽  
Crude Protein ◽  
Amino Acid Supplementation ◽  
Acid Supplementation

scholarly journals Limiting amino acids supplementation in low crude protein diets and their impacts on growth performance and carcass composition in Labeo rohita (rohu) adult fish

2023 ◽  
Vol 83 ◽  
Author(s):  
A. Ayub ◽  
F. Rasool ◽  
N. Khan ◽  
S. N. Qaisrani ◽  
S. Parveen ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Crude Protein ◽  
Control Diet ◽  
Amino Acid Level ◽  
Carcass Composition ◽  
Amino Acid Supplementation ◽  
Acid Supplementation ◽  
Low Protein ◽  
Limiting Amino Acids

Abstract Ninety days study was conducted in hapas installed in earthen ponds. Fish of an average initial weight (220g) were evenly distributed in triplicate groups within fifteen hapas. Five experimental diets labeled as T1 (25% CP and NRC recommended amino acid level) as control diet, T2 (with 2% low protein and 5% amino acid supplementation), T3 (with 2% low protein and 10% amino acid supplementation), T4 (with 4% low protein and 10% amino acid supplementation) and T5 (with 4% low protein and 20% amino acid supplementation) were prepared. Fish were fed with @3% of their body weight twice a day at 10.00 & 16:00 hour. Significantly higher percent weight gain (420.18 ± 66.84a) and specific growth rate (13499.33±1273.54a) along with improved feed conversion ratio (1.29 ± 0.09b) and hundred percent survivals were recorded during the trial. Furthermore proximate analysis of meat showed significant improvement in the crude protein level (81.77 ± 0.19a) served with diet containing 20% limiting amino acids mixture. Therefore, limiting amino acids can be a source of cost effective feed and use safely in L. rohita diet.

scholarly journals Crude protein reduction with amino acid supplementation in tambaqui fingerling diets

2015 ◽  
Vol 36 (6Supl2) ◽  
pp. 4531
Author(s):  
Charlyan De Sousa Lima ◽  
Marcos Antonio Delmondes Bomfim ◽  
Jefferson Costa de Siqueira ◽  
Eduardo Arruda Teixeira Lanna ◽  
Felipe Barbosa Ribeiro ◽  
...  
Keyword(s):  
Body Composition ◽  
Amino Acid ◽  
Crude Protein ◽  
Experimental Unit ◽  
Amino Acid Supplementation ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Acid Supplementation ◽  
Ideal Protein ◽  
The Ideal

<p>The aim of this study was to evaluate the effect that reduced crude protein (CP) diets with amino acid  supplementation, based on the ideal protein concept, have on the performance of tambaqui fingerlings. In total, 750 fingerlings with an initial weight of 0.44 ± 0.14 g, were used in a completely randomized design, with six treatments, five replications, and 25 fish per experimental unit. Treatments consisted of six isocaloric, isocalcic, isophosphoric, and isolysinic diets containing 32.0, 30.5, 29.0, 27.5, 26.0, and 24.5% CP. Performance parameters, carcass yield, body composition (body humidity, protein, and fat content), and nitrogen retention efficiency (NRE) of the fish were evaluated. When the CP content was reduced to 27.5%, there was an improvement in weight gain, specific growth rate, feed conversion, and protein efficiency rate. Feed intake was higher in fish fed diets containing 26% CP, followed by those fed diets containing 29 and 27.5% CP; diets containing other levels of CP did not differ among themselves. CP intake was reduced by the use of diets containing 24% CP, and the carcass yield was not influenced by the treatments. Reduced CP had no influence on body composition. NRE was higher in response to diets containing 26.0 and 24.5% CP. Reducing dietary CP content, from 32.0 to 24.5%, based on the ideal protein concept, is possible for tambaqui fingerlings, and a decrease of up to 24.5% enhances the fish performance.</p>

scholarly journals AMINO ACID SUPPLEMENTATION OF CANOLA MEAL

1989 ◽  
Vol 69 (2) ◽  
pp. 469-475 ◽  
Author(s):  
J. D. SUMMERS ◽  
M. BEDFORD ◽  
D. SPRATT
Keyword(s):  
Amino Acid ◽  
Soybean Meal ◽  
Corn Oil ◽  
Control Diet ◽  
Basal Diet ◽  
Essential Amino Acids ◽  
Canola Meal ◽  
Amino Acid Supplementation ◽  
Acid Supplementation ◽  
Methionine Supplementation

Supplementing a 15% protein diet for chickens, with all the protein coming from canola meal, with essential amino acids (EAA) to bring diet levels up to those recommended by NRC, failed to improve weight gain over that of an unsupplemented canola meal diet. While feed:gain ratio of the EAA-supplemented diet was improved, performance was markedly inferior to that of a 20% protein corn-soybean meal diet. Supplementing the canola meal basal diet with corn oil, lysine, or lysine plus arginine resulted in significant responses; however, performance was again far below that of the corn-soybean meal positive control diet. Supplementing the canola meal basal with EAA to bring levels up to close to the corn-soybean meal control diet resulted in performance which was superior to that obtained in the experiments in which EAA were supplemented to NRC requirement levels. However, performance was still markedly inferior to the corn-soybean meal control diet. A point of interest was the failure to demonstrate a need for methionine supplementation of the canola meal diet, even though by calculations it should have been deficient in this amino acid. A marked improvement in performance occurred when the level of methionine supplementation was reduced from 0.28 to 0.1% for the canola meal diet, supplemented with lysine, arginine and tryptophan. This clearly demonstrates that excess methionine or sulphur supplementation can markedly alter the performance of canola meal diets and may be one of the major reasons why EAA supplementation of semipurified diets that contain canola meal has failed to result in marked improvements in performance. Key words: Canola meal, amino acid supplementation, chickens

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