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Sophie Jensen Oddny Ragnarsdottir Ragnar Johannsson 《Journal Of Aquatic Food Product Technology》2019,28(1):74-83
The furan fatty acid (F-fatty acid) content was determined in different marine sources as well as in commercially available marine oil products that claim to be health promoting. The five F-fatty acids typically representing the majority of F-fatty acids in fish, 9M5 (9-(3-methyl-5-pentylfuran-2-yl)-nonanoic acid), 9D5 (9-(3-dimethyl-5-pentylfuran-2-yl)-nonanoic acid), 11D3 (11-(3,4-Dimethyl-5-propylfuran-2-yl)-undecanoic acid), 11D5 (11-(3,4-Dimethyl-5-pentylfuran-2-yl)-undecanoic acid), and 11M5 (11-(3-Methyl-5-pentylfuran-2-yl)-undecanoic acid) were measured as methyl esters using a gas chromatograph linked with a tandem mass spectrometer (GC/MS-MS). The results showed a significant difference in F-fatty acid levels between the different marine oil products analyzed, depending on the source of raw material. Of the 11 different Icelandic marine catches analyzed, the highest total amount of F-fatty acids was found in the farmed fish. 相似文献
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Laura Star Sophie Tesseraud Marije van Tol Ilaria Minussi Etienne Corrent William Lambert 《动物营养(英文)》2021,7(2):472
The aim of the study was to test the interaction between Thr and Gly in low crude protein (CP) diets in 7 to 28 d broilers on production performance and plasma metabolites. A total of 2,040 broilers were allocated to 17 treatments. A positive control (PC) diet (20.5% CP) was formulated to be adequate in dietary Thr and Gly. A negative control (NC) diet (18.5% CP, deficient in Thr and Gly) was supplemented with crystalline l-Thr and Gly to obtain a 4 Thr × 4 Gly design. Dietary Thr was tested at an apparent faecal digestibility (AFD) Thr-to-Lys ratio, which was 55%, 58%, 61% or 64%, and dietary Gly was tested at an AFD (Gly + Ser)-to-Lys ratio, which was 135%, 142%, 149% or 156%. Plasma samples were collected at 28 d. The low CP diet, formulated at 64% Thr and 156% Gly, resulted in a higher body weight gain (BWG) (P < 0.01) and similar feed conversion ratio (FCR) as the high CP treatment (PC). FCR was improved (P < 0.001) by l-Thr supplementation. Quadratic response to dietary Thr was significant for feed intake (FI), BWG and FCR (P < 0.01). A near-significant interaction for Thr × Gly was observed for FI and BWG (Plinear = 0.091 and P = 0.074, respectively). Gly did not affect production performance. An interaction between Thr × Gly on plasma free AA level was observed (P < 0.05). Free AA concentration in plasma linearly decreased with increase in AFD Thr-to-Lys ratio, and increased with increase in AFD (Gly + Ser)-to-Lys ratio. Plasma uric acid concentration was higher in PC than in all of the other diets, and plasma triglyceride concentration was decreased by l-Thr supplementation, but not by Gly. In conclusion, Gly was not limiting for growth at low dietary CP level unless Thr was deficient, showing that adequate amounts of Thr in broiler diets can overcome marginal supply of Gly and Ser and allow reduction of dietary CP from 20.5% to 18.5% for broilers from 7 to 28 d of age. 相似文献