Effects of L‐carnitine supplementation on growth performance, histomorphology, antioxidant and immune function of Rhynchocypris lagowskii fed dietary fish oil replaced with corn oil

The present study investigated the effects of total replacement of dietary fish oil by different vegetable oils on growth performance, nutritional quality and fatty acid profiles of rainbow trout (Oncorhynchus mykiss) at optimum and high temperature conditions. Five iso-nitrogenous and iso-lipidic diets including 100% fish oil and vegetable oils were prepared for rainbow trout fingerlings with an average weight of 11.27±0.01 g. After the fish were fed experimental diets for 9 weeks at the optimum temperature (17.74±0.01°C), all groups were fed an FO diet containing only fish oil for 4-weeks at the upper optimum temperature conditions (19.28±0.11°C). In both feeding trials, experimental fish were hand-fed ad libitium twice a day. Results showed that growth performance and feeding efficiency were significantly better (p<0.05) in groups fed by VO-based diets compared to groups fed by FO based diet at optimum temperature. Survival was 100% in CANO, SFO, CO PNO groups and 94.12±3.39% in FO (control) group at the end of the 9 weeks. Growth, feed consumption and survival of fish fed the upper-optimum temperature were significantly differed (p<0.05). In particular, while the survival rate of the groups fed with vegetable oil-based diets at optimum temperature and then fed only fish oil remained 100%, this rate decreased to 54.17±1.39% in the control group. Eicosapentaenoic acid (EPA, 20:5n-3), docosahexaenoic acid (DHA, 22:6n-3) and n-3 PUFA of fish fed by VO based diets were low. When all groups were fed only FO diet for 4 weeks at upper-optimum temperatures, EPA, DHA and n-3 PUFA ratios increased. In addition, after the upper-optimum temperature trial, increases in the nutritional quality indices of fish meat were also detected.

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Effects of dietary fish oil on cardiac responsiveness to adrenoceptor stimulation

AJP Heart and Circulatory Physiology ◽

10.1152/ajpheart.1988.254.3.h494 ◽

1988 ◽

Vol 254 (3) ◽

pp. H494-H499 ◽

Cited By ~ 2

Author(s):

D. K. Reibel ◽

M. A. Holahan ◽

C. E. Hock

Keyword(s):

Fish Oil ◽

Corn Oil ◽

Left Ventricular Pressure ◽

Left Ventricular ◽

Beta Adrenoceptor ◽

Cardiac Inotropy ◽

Rat Hearts ◽

Dietary Fish ◽

Pressure Development ◽

Standard Laboratory Diet

The effect of dietary fish oil on cardiac function and responsiveness to alpha- and beta-adrenergic receptor agonists was examined in isolated perfused rat hearts. Rats were fed either a standard laboratory diet (SD) or diets containing 5% corn oil (CO) or 5% menhaden oil (MO) for 4 wk. When perfused as working preparations at varying preloads and afterloads, the peak aortic pressures, aortic outputs, and coronary flows were comparable in hearts of rats fed the three experimental diets. Inotropic responsiveness to phenylephrine was examined by infusing graded doses of the drug into the heart while monitoring changes in the rate of left ventricular pressure development (+dP/dt). Prior to phenylephrine administration +dP/dt was not different among the three groups of hearts. However, at each dose of phenylephrine employed, delta +dP/dt was approximately 50% less in hearts of rats fed MO when compared with either SD or CO. Thus cardiac inotropic responsiveness to this alpha-agonist was reduced by dietary fish oil. In contrast, cardiac inotropic responsiveness to isoproterenol was not altered with MO feeding. The data demonstrate that dietary fish oil results in alterations in alpha- but not beta-adrenoceptor mediated changes in cardiac inotropy.

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Effect of replacing dietary fish oil with soybean oil on growth performance, fatty acid composition and haematological parameters of juvenile meagre,Argyrosomus regius

Aquaculture Research ◽

10.1111/are.12677 ◽

2015 ◽

Vol 47 (7) ◽

pp. 2256-2265 ◽

Cited By ~ 13

Author(s):

Yılmaz Emre ◽

Adem Kurtoğlu ◽

Nesrin Emre ◽

Betül Güroy ◽

Derya Güroy

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Fish Oil ◽

Soybean Oil ◽

Growth Performance ◽

Acid Composition ◽

Haematological Parameters ◽

Argyrosomus Regius ◽

Dietary Fish

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Effect of dietary fish oil and corn oil on lipid metabolism and apolipoprotein gene expression by rat liver

European Journal of Biochemistry ◽

10.1111/j.1432-1033.1991.tb15842.x ◽

1991 ◽

Vol 196 (2) ◽

pp. 499-507 ◽

Cited By ~ 48

Author(s):

Agnes RIBEIRO ◽

Marise MANGENEY ◽

Philippe CARDOT ◽

Claude LORIETTE ◽

Yves RAYSSIGUIER ◽

...

Keyword(s):

Gene Expression ◽

Lipid Metabolism ◽

Fish Oil ◽

Rat Liver ◽

Corn Oil ◽

Dietary Fish

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Effect of Different Fatty Acid Sources of Diet on Growth Performance of Botia Botia macracanthus Bleeker

Jurnal Akuakultur Indonesia ◽

10.19027/jai.7.199-204 ◽

2008 ◽

Vol 7 (2) ◽

pp. 199 ◽

Cited By ~ 1

Author(s):

. Sunarto ◽

. Sabariah

Keyword(s):

Growth Rate ◽

Fatty Acid ◽

Fish Oil ◽

Growth Performance ◽

Conversion Rate ◽

Corn Oil ◽

Coconut Oil ◽

Fish Oils ◽

Feed Conversion ◽

Feed Conversion Rate

Fish requires essential fatty acid for growth. Freshwater fish needs linoleat fatty acid (n-6) or combination of linoleat and a-linolenat acids (n-3). Fish oil contains higher level of n-3, corn oil is rich of n-6, while coconut oil is rich of saturated fatty acids. This study was conducted to determine the effect of fatty acid sources in diet on growth performance of botia Botia macracanthus. Sources of fatty acid examined were coconut oil (control), corn oil, fish oil, and corn oil + fish oil + coconut oil. The results of study show that daily growth rate of fish fed on diet containing mix of corn-coconut-fish oils (8.39%) and only corn oil (8.15%) was higher (p<0.05) compared to that of fish fed on diet containing fish oil (7.67%) and coconut oil (6.62%). Feed conversion rate of fish fed on diet containing mix of corn-coconut-fish oils (2.12%) and only corn oil (2.34%) was lower (p<0.05) than that of fish fed on diet containing fish oil (2.97%) and coconut oil (3.74%). Growth rate and feed conversion rate of fish fed on diet containing mix of corn-coconut-fish oils and only corn oil was similar (p>0.05). Survival rate of fish at all treatments was similar, ranged from 90.00 to 93.33%. Thus, the results suggested that diet containing only corn oil is suitable for botia to obtain higher growth rate and lower feed conversion rate. Keywords: fatty acid, growth performance, botia, Botia macracanthus ABSTRAK Ikan membutuhkan asam lemak essensial (EFA = Essential Fatty Acid) untuk pertumbuhannya. Ikan air tawar memerlukan asam lemak linoleat (n-6) atau gabungan asam lemak linoleat (n-6) dan alfa-linolenat (n-3). Minyak ikan banyak mengandung asam lemak n-3, minyak jagung kaya akan asam lemak n-6, sementara minyak kelapa banyak mengandung asam lemak jenuh. Sumber asam lemak yang diuji adalah minyak kelapa (kontrol), minyak jagung, minyak ikan, dan minyak jagung + minyak ikan + minyak kelapa. Hasil penelitian menunjukkan bahwa laju pertumbuhan harian ikan botia yang diberi pakan yang mengandung campuran minyak jagung-kelapa-ikan (8,39%) dan minyak jagung (8,15%) saja lebih tinggi (p<0,05) daripada yang diberi pakan mengandung minyak ikan (7,67%) dan minyak kelapa (6,62%). Nilai konversi pakan pada ikan yang diberi pakan mengandung minyak jagung-kelapa-ikan (2,12%) dan minyak jagung (2,34%) lebih rendah (p<0,05) dibandingkan dengan yang diberi pakan mengandung minyak ikan (2,97%) dan minyak kelapa (3,74%). Pertumbuhan dan konversi pakan pada ikan yang diberi pakan mengandung campuran ketiga minyak dan hanya minyak jagung adalah tidak berbeda (p>0,05). Kelangsungan hidup ikan pada semua perlakuan relatif sama, yaitu berkisar antara 90,00-93,33%. Dengan demikian, pakan untuk ikan botia cukup mengandung minyak jagung saja untuk mendapatkan laju pertumbuhan yang tinggi dengan konversi pakan yang rendah. <h2>Kata kunci: asam lemak, kinerja pertumbuhan, ikan botia, Botia macracanthus</h2>

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