Dietary lipid sources influence responses of channel catfish (Ictalurus punctatus) to challenge with the pathogen Edwardsiella ictaluri

Fracalossi, Débora Machado; Lovell, Richard T.

doi:10.1016/0044-8486(94)90183-x

Cited by 114 publications

(72 citation statements)

References 20 publications

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“…Positive effects of n-3 fatty acids on the immune response were found in O. mykiss (Kiron et al, 1995) and S. aurata (Montero et al, 2008), whereas negative effects of high levels of dietary n-3 PUFAs on immunity are found in I. punctatus (Fracalossi and Lovell, 1994) and O. mykiss (Ashton et al, 1994). In this study, although we found that partial inclusion (25%) of soybean oil in diet can enhance immunity, it still warrants further study to investigate the mechanism why inclusion of vegetable oil can improve fish immunity.…”

Section: Discussionmentioning

confidence: 98%

“…Studies on dietary lipid and fish immune system have been emphasized on because incorporation of vegetable oils in diets may result in the potential imbalance of n-3 to n-6 fatty acids and thereafter directly or indirectly affect immune system and disease resistance in fish (Pablo et al, 2002;Montero et al, 2003). Recent research has shown that fish immunity is compromised when fish oil is replaced with vegetable oils in Epinephelus malabaricus (Lin and Shiau, 2007), Ictalurus punctatus (Fracalossi and Lovell, 1994), Psetta maxima (Regost et al, 2003), Salmo salar L. (Brandsen et al, 2003) and Sparus aurata (Montero et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Effects of dietary soybean oil inclusion to replace fish oil on growth, muscle fatty acid composition, and immune responses of juvenile darkbarbel catfish, Pelteobagrus vachelli

Jiang¹,

Chen²,

Qin³

et al. 2013

Afr. J. Agric. Res.

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An 80 day feeding trial was conducted to evaluate the effects of dietary inclusion of soybean oil to replace fish oil in the diet on growth, muscle fatty acids and immune responses of Pelteobagrus vachelli. Isonitrogenous and isocaloric diets were formulated with four fish oil to soybean oil ratios at 8:0 (FO, control), 6:2 (MO1), 2:6 (MO2) and 0:8 (SO) in triplicate. Each diet was fed to juvenile darkbarbel catfish (1.0 ± 0.02 g) twice daily. No significant differences were found in weight gain, special growth rate, hepatosomatic index and intraperitoneal fat ratio among all the treatments. Incorporation of soybean oil significantly modified the fatty acid composition and n-3 and n-6 PUFAs ratio in muscle of fish. Fish fed MO1 showed significantly higher serum lysozyme activity, complement C3 and C4 contents and total IgM content than those fed other diets. These results indicate that partial replacement of fish oil with soybean oil does not compromise fish growth, but improve fish immunity. This study suggests that 25% fish oil replacement with soybean oil can be used in the practical diet of this fish.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Effects of dietary soybean oil inclusion to replace fish oil on growth, muscle fatty acid composition, and immune responses of juvenile darkbarbel catfish, Pelteobagrus vachelli

Jiang¹,

Chen²,

Qin³

et al. 2013

Afr. J. Agric. Res.

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show abstract

“…In channel catfish, Ictalurus punctatus, high dietary intake of n-3 HUFA has been associated with reduced immunocompetence, particularly at high temperatures. These include reduced phagocytic ability and intracellular superoxide production (Lingenfelser et al 1995), reduced LTB production (Fracalossi and Lovell 1994) and decreased disease resistance upon challenge with Edwardsiella ictaluri (Fracalossi and Lovell 1994;Li et al 1994). These differences generally seem to disappear at lower temperatures, suggesting an additional temperaturedependent role of n-3 HUFA.…”

Section: Effect Of the Oil Fraction On Immunitymentioning

confidence: 99%

Criteria for Safe Use of Plant Ingredients in Diets for Aquacultured Fish

Hemre

Amlund

Aursand

et al. 2018

EJNFS

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“…As most chemical and enzymatic digestive processes are a function of surface area, solidification may dramatically impact digestibility as well as absorption of lipid. Although in one study, implementation of beef tallow in channel catfish feeds reduced weight gain regardless of fish oil replacement level [33] , in a later study, reduced growth was noted at lower temperatures [34] . Conversely, channel catfish reared at cooler temperatures grew equally well on feeds containing menhaden or catfish oils, but at warmer temperatures, the menhaden fish oil-fed group outperformed the catfish oil-fed group [35] .…”

Section: Digestibility and Utilizationmentioning

confidence: 99%

Potential, Implications and Solutions Regarding the Use of Rendered Animal Fats in Aquafeeds

Trushenski

Lochmann²

2009

American J. of Animal and Veterinary Sciences

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Problem statement:In the past, aquafeeds were comprised largely of fish meal and fish oil derived from marine reduction fisheries. In addition to being highly palatable and readily digested by cultured fishes, these feedstuffs were historically inexpensive sources of protein, energy and essential nutrients. However, increasing cost and concerns over safety and sustainability have greatly incentivized the transition from fish meal and oil to alternative sources of protein and lipid for aquafeed formulation. Fish oil replacement is proving more difficult than originally anticipated, particularly for marine carnivorous species. Approach: If complete fish oil replacement is not a viable goal for fish nutritionists and aquafeed manufacturers, at a minimum, we must strive for judicious use of limited marine-derived resources. In the present review, we explore the opportunities of using rendered fats as alternatives to marine-derived fish oils in aquaculture feeds, beginning with a discussion of the products themselves before reviewing the most recent literature and concluding with a discussion of the future of these products in aquafeed formulations. Results: Rendered fats have not been as intensively evaluated in aquaculture nutrition as grain and oilseed-derived lipids, although a number of recent publications on the subject suggest increasing interest in the use of rendered products in aquafeeds. Conclusion: Poultry fat, beef tallow, pork lard and to a lesser extent, yellow/restaurant grease and catfish oil, have been investigated individually or in combination with other lipids in feeds for a broad range of cultured taxa with generally acceptable results.

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Dietary lipid sources influence responses of channel catfish (Ictalurus punctatus) to challenge with the pathogen Edwardsiella ictaluri

Cited by 114 publications

References 20 publications

Effects of dietary soybean oil inclusion to replace fish oil on growth, muscle fatty acid composition, and immune responses of juvenile darkbarbel catfish, Pelteobagrus vachelli

Effects of dietary soybean oil inclusion to replace fish oil on growth, muscle fatty acid composition, and immune responses of juvenile darkbarbel catfish, Pelteobagrus vachelli

Criteria for Safe Use of Plant Ingredients in Diets for Aquacultured Fish

Potential, Implications and Solutions Regarding the Use of Rendered Animal Fats in Aquafeeds

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