Affiliation:
1. Aquaculture Department of Fisheries, Faculty of Fisheries and Environmental Science , Gorgan University of Agricultural Sciences and Natural Resources , Gorgan , Iran
Abstract
Abstract
The purpose of the present study was to investigate the effects of amino acids L-proline and L-alanine on growth performance, amino acid, and fatty acid levels in the fillet of juvenile common carp. Four hundred and fifty juvenile common carp were randomly distributed in 30 tanks and fed with three levels of proline (5 [P5], 10 [P10], and 15 [P15] g/kg), three levels of alanine [A] (5 [A5], 10 [A10], and 15 [A15] g/kg), three levels of proline-alanine combination [PA] (2.5 + 2.5 [2.5PA], 5 + 5 [5PA], 7.5 + 7.5 [7.5PA] g/kg feed) and basal diet (control). The highest body weight gain (25.85 ± 0.1 g) and survival rate (91.11 ± 3.84) were observed in 7.5 PA treatment. The highest protein content (64.58 ± 0.49) was noticed in 2.5 PA; however, compared to combined treatments (5 PA and 2.5 PA), it did not show any significant difference (P<0.05). The highest total amount of essential amino acids (48.30 ± 48.3) was observed in 7.5 PA treatment. The highest amount of DHA (5.65 ± 0.08), total EPA, and DHA (8.91 ± 0.13) were in 7.5 PA treatment. Finally, it can be concluded that two amino acids L-proline and L-alanine at the combined level of 5 PA can improve the growth performance, survival, and fillet composition in the juvenile common carp.
Reference78 articles.
1. Adron J.W., Mackie A.M. (1978). Studies on the chemical nature of feeding stimulants for rainbow trout, Salmo gairdneri Richardson. J. Fish Biol., 12: 303–310.10.1111/j.1095-8649.1978.tb04175.x
2. Ajiboye O.O., Yakubu A.F., Adams T.E. (2012). A perspective on the ingestion and nutritional effects of feed additives in farmed fish species. World J. Fish Mar. Sci., 4: 87–101.
3. Baker D.H. (1977). Amino acid nutrition of the chick: Advances in nutritional research. Springer, Boston, MA. pp. 299–335.10.1007/978-1-4613-9928-5_11
4. Baker D.H. (2009). Advances in protein-amino acid nutrition of poultry. Amino Acids., 37: 29–41.10.1007/s00726-008-0198-3
5. Balogun O.O., Fetuga B.L. (1980). Liver glutamate-oxalate transaminase and glutamate-pyruvate transaminase activity in pigs as influenced by dietary methionine and lysine levels. Biochem. Exp. Biol., 16: 42–50.