Monitoring the concentration of amino acids in fish feed is critical to the health, growth and sustainability of aquaculture operations for several reasons. Firstly, fish feed should be rich in proteins, which are essential for fish growth and development. An optimal balance of amino acids ensures proper muscle development and overall growth [1]. Further, certain amino acids play a crucial role in maintaining and enhancing the fish’s immune system, which helps them resist disease and reduce mortality rates. Monitoring ensures that fish feed contains all essential amino acids in the right proportions to avoid nutritional deficiencies that can lead to poor growth, deformities and increased susceptibility to disease.
ABSTRACT
LC-MS determination of amino acids in fish feed after protein hydrolysis using the MetAmino® kit, published under the ChromLine brand. Sample preparation: fish feed (50 mg) was placed in a test tube, 6M HCl (5 mL) was added and the sealed tube was heated at 110 °C for 24 hours; after cooling, 50 µL of the mixture was diluted five times with 200 µL of deionized water, 15 µL of the diluted mixture was taken for analysis, IS (10 µL) was added and the protocol was continued with the addition of CTS and RDS according to the general protocol scheme referenced in the note. The chromatographic conditions are not detailed beyond the LC-MS MetAmino® kit method, so no column, dimensions, part number, mobile phase, gradient, flow rate, temperature, injection volume or detector settings are…
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Histidine (HIS)CAS number not available
Lysine (LYS)CAS number not available
Phenylalanine (PHE)CAS number not available
Leucine (LEU)CAS number not available
Aspartic acid (ASP)CAS number not available
Glutamic acid (GLU)CAS number not available
Isoleucine (ILE)CAS number not available
Tyrosine (TYR)CAS number not available
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Biology Centre CAS, České Budějovice
Biology Centre of the Czech Academy of Sciences, České Budějovice (Czech Republic). Named as the developer of the SpeExtra(TM) MSPE application for the pre-purification of insect adipokinetic hormones.
References
Wei, Y.; Shen, H.; Xu, W.; Pan, Y.; Chen, J.; Zhang, W.; Mai, K. Replacement of dietary fishmeal by Antarctic krill meal on growth performance, intestinal morphology, body composition and organoleptic quality of large yellow croaker Larimichthys crocea; Aquaculture; 2019, 734281.
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