The effect of dietary Salvia hispanica seed on the content of n-3 long-chain polyunsaturated fatty acids in tissues of selected animal species, including edible insects.

摘要

The aim of the study was to compare the deposition of n-3 long-chain polyunsaturated fatty acids (LC-PUFAn-3) in chicken breast meat (BM), thigh meat, quail eggs (QE) and tissues of two edible insect species (cricket [CR] and giant mealworm beetle [MB]) when feeding the animals with different amounts of Salvia hispanica seeds (SHS; source of alpha-linolenic acid, alphaLnn). The highest (P< 0.05) LC-PUFAn-3 concentration in BM, TM and QE (11.7, 36.5 and 106 mg/100 g of fresh matter) was reached with the dietary SHS content of 60 g kg-1 (chickens) and 75 g kg-1 (quails), respectively. The eicosapentaenoic acid (EPA) concentration in CR fed the diet containing 500 g kg-1 of SHS was 17 mg/100 g, which suggests a presence of Delta6- and Delta5-desaturases. When adjusted for changing alphaLnn intake, LC-PUFAn-3 content in BM, TM, QE and CR was 14, 31, 76 and 20 mg/100 g. Percentage of alphaLnn deposited in a given tissue that was converted to LC-PUFAn-3 in this tissue (tissue LC-PUFAn-3/tissue alphaLnn x 100, in %; Y) decreased (P < 0.001) with increasing dietary alphaLnn (mg/100 g) both in BM + TM (taken as a one set; Y = 39.2 - 0.03X, R 2 = 0.35) and QM (Y = 75.6 - 0.04X, R 2 = 0.75). All rights reserved, Elsevier.