scholarly journals Effect of Reducing Crude Protein and Energy Content in Diets with Amino Acid Supplementation on Nitrogen Balance, Performance and Carcass Characteristics in Pigs

1997 ◽  
Vol 68 (7) ◽  
pp. 640-649 ◽  
Author(s):  
Fumio TACHIBANA ◽  
Hiroyuki UBAGAI
Keyword(s):  
Amino Acid ◽  
Nitrogen Balance ◽  
Crude Protein ◽  
Energy Content ◽  
Carcass Characteristics ◽  
Amino Acid Supplementation ◽  
Balance Performance ◽  
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 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

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.

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