Fatty acid profile of muscle, fatty body, adipose tissue and serum of Caiman latirostris in captivity

SIMONCINI, MELINA; LEIVA, PAMELA; REY PAEZ, ARLEY; LAVANDERA, JIMENA; WILLINER, MARÍA ROSA; NEGRO, EMILCE; FRUTOS, ANTONIO; PIÑA, CARLOS; BERNAL, CLAUDIO; GONZALEZ, MARCELA

Santa Fe

Congreso; 25th Working Meeting of the Crocodile Specialist Group (CSG/SSC/IUCN); 2018

IUCN-SSC Crocodile Specialist Group (CSG)

Lipids are important constituents of cell membranes and play a majorrole in metabolic processes. They are composed of fatty acids (FA) of differentchain lengths that may be saturated or unsaturated. The FA profile in theadipose tissue is modified through diet. The aim of this study was to comparethe FA profile of four tissues (muscle, serum, fatty body and adipose tissue)of Caiman latirostris bred for two years by Proyecto Yacaré. The FA profile wasdeterminate by gas chromatograph. Data were analyzed by similarity analysis(ANOSIM), non metrical multidimensional scaling (NMDS) and principal componentanalysis (PCA). The results show that FA profile of adipose tissue and fattybody were similar (regarding to polyunsaturated and saturated FA), and theywere different from the serum and muscle. The muscle is characterized by thepresence of linolenic, eicosapentaenoic and docosahexaenoic acids (fatty acidsthat are of great importance for health and are recommended for humanconsumption), while the adipose tissue and the fatty body have FA such aslinolenic, eicosatrienoic and docosatrienoic and saturated fatty acid likemyristic. The serum was characterized by polyunsaturatedfatty acid such asarachidonic, docosadienoic, linoleic, and saturated fatty acids like stearic.In the muscle we find different polyunsaturated fatty acids in comparison withthe fatty body and adipose tissue. This would be related to the differentfunction of the tissues. The knowledge of the fatty acids composition of thesetissues could define possible uses of them and allow modifying the diet toimprove FA profiles.