GROWTH RESPONSE AND MUSCLE LIPID QUALITY OF INDIAN WHITE SHRIMP FED DIFFERENT OILS AT TWO DIETARY LIPID LEVELS

2010 ◽  
Vol 33 (4) ◽  
pp. 405-423 ◽  
Author(s):  
H. OURAJI ◽  
A.M. ABEDIAN KENARI ◽  
B. SHABANPOUR ◽  
A. SHABANI ◽  
S.A. NEZAMI ◽  
...  
2020 ◽  
pp. 1-8
Author(s):  
Emmanuel Ilesanmi Adeyeye ◽  

Household technologies such as fermentation, soaking, roasting and malting are traditionally used in many societies with the assumption that they can contribute to improving the safety and quality of complementary foods. To observe the dietary lipid quality, unprocessed, steeped and germinated maize grains were used to evaluate their effect on the enhancement of fatty acids, phospholipids and phytosterols. Maize samples were denoted as B1 (unprocessed) B2 (sprouted) and B3 (steeped) maize. In crude fat, B2 was enhanced by 0.47g/100g (9.23%). Calculated fatty acids had values (g/100g) of:B1(3.66)<B2(4.00)> B3(3.63). Highest levels of these fatty acids were observed as follows: SFA(B2, 27.2%), MUFA(B1,34.7%) and PUFA(B1,47.0%); but B3 was more concentrated in MUFA and PUFA than B2 but less than B1.Both oleic and linoleic fatty acids slightly increased during steeping stage of malting but later declined during germination phase particularly oleic acid. Total energy density (kcal/100g) concentration in the samples with the percentage linoleic acid had these values: B1(32.9, 43.7%), B2(36.0, 37.2%) and B3(32.7, 41.9%). Total phytosterol (mg/100g) values were low: B1(52.3), B2(43.7) and B3(45.1) with sitosterol predominating in all: 33.5 > 28.8 < 29.6 respectively. In phospholipids, values were generally higher than the phytosterols as we have total values (mg/100g) of: B1(74.4); B2(71.3) and B3(62.0) with phosphatidylinositol predominating in all samples: 25.5 > 25.1 > 22.4 respectively. Raw maize sample had highest concentration of phospholipids, phytosterols, MUFA and PUFA. The declines in B2 and B3 in the above parameters suggested that lipids were used for biochemical processes. However, B3 was better concentrated than B2 in phytosterols, MUFA, PUFA, linoleic and oleic acids. This showed germination reduced fat content due to hydrolysis and utilization of fat as an energy source in germination. Observations had depicted the contribution of maize to presence of high level phosphatidylinositol and sitosterol to the infant. It also contributed to information on discrepancies on the effect of fermentation/ germination on cereal lipids in literature. Either steeped or sprouted maize is good as complementary food.


2019 ◽  
Vol 32 (4) ◽  
Author(s):  
MUHAMMAD ANAMUL KABIR ◽  
◽  
MOHAMMAD BODRUL MUNIR ◽  
SHARIFAH LIA FARLIANA WAN ALIAS ◽  
ADRIANA LEJA ◽  
...  

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 392
Author(s):  
Lydia Katsika ◽  
Mario Huesca Flores ◽  
Yannis Kotzamanis ◽  
Alicia Estevez ◽  
Stavros Chatzifotis

This study was conducted to elucidate the interaction effects of temperature and dietary lipid levels (2 × 2 factorial experiment) on the growth performance, muscle, and liver composition in adult farmed European sea bass (Dicentrarchus labrax). Two groups of fish (190 g; 60 fish per group) were distributed in 12 tanks in triplicates and kept at two different temperature regimes; one starting at 23 °C and then changed to 17 °C for 61 days, and the other starting at 17 °C and then changed to 23 °C for 39 days. Two commercial diets containing both ~44% crude protein but incorporating different dietary lipid levels, 16.5% (D16) and 20.0% (D20) (dry matter (DM)), were fed to the fish to apparent satiation; the type of diet fed to each fish group remained constant throughout the experiment. Final body weight, weight gain, and specific growth rate were significantly higher for the fish group held at 23 °C compared to the fish group at 17 °C (before the temperature changes), while the dietary fat content did not have any profound effect in both groups. Furthermore, the different temperature regimes did not affect muscle or liver composition, but, on the contrary, dietary lipids affected hepatosomatic, perivisceral fat, and visceral indexes. Feed conversion ratio and specific growth rate were not affected by the dietary lipid level. An interaction of temperature and dietary lipid content was observed in daily feed consumption (DFC) and final body weight (FBW).


2021 ◽  
Vol 11 (8) ◽  
pp. 3590
Author(s):  
Endale Amare ◽  
Luca Grigoletto ◽  
Viviana Corich ◽  
Alessio Giacomini ◽  
Anna Lante

Teff and amaranth are gluten-free cereals with significant nutritional and health benefits. However, they are underutilized and known in limited areas of the world. The present study evaluated the fatty acid profile, crude fat, squalene content and lipid quality of seven teff (Eragrostis teff (Zucc.) Trotter) and three amaranth (Amaranthus caudatus L.) varieties from Ethiopia. The fat content ranged from 2.92 to 3.34% (averaging 3.06%) and from 8.28 to 9.21% (averaging 8.6%) for teff and amaranth, respectively. Linoleic, oleic and palmitic acid were predominant in both teff and amaranth, accounting for approximately 89 and 85% of total fatty acid content, respectively. The saturated to unsaturated fatty acids ratio ranged from 0.30 to 0.32 in teff and from 0.38 to 0.40 in amaranth. The parameters used to describe lipid quality, i.e., thrombogenicity and atherogenicity indices, show that teff was superior over amaranth, suggesting a preference for the former for healthy food formulation. The squalene content of white amaranth (486.54 mg/100 g DM) was significantly higher than that of the other two varieties (327.54 and 340.81 mg/100 g DM for red and brown amaranth, respectively). In general, both gluten-free crops should be exploited for their potential as ingredients for the development of novel functional foods.


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