The effects of experimental starter diets with different levels of soybean or menhaden oil on red drum (Sciaenops ocellatus)

Tucker, John W.; Lellis, William A.; Vermeer, Gregory K.; Roberts, Daniel; Woodward, Peter N.

doi:10.1016/s0044-8486(96)01448-2

Cited by 50 publications

(43 citation statements)

References 27 publications

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“…Hepatocellular lipid deposition, a well-documented classical sign of aflatoxicosis in fish [46,47], was present in red drum exposed to AFB 1 . However, red drum kept in captivity typically display fatty deposition and hepatocellular macrovacuolation [48], which should be taken into consideration for accurate red drum liver evaluation. The hepatocellular vacuolation seen in control livers was markedly reduced, as anisocytosis and karyomegaly increased, especially in fish exposed to higher levels of aflatoxin.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Aflatoxin-B1 on Red Drum (Sciaenops ocellatus) and Assessment of Dietary Supplementation of NovaSil for the Prevention of Aflatoxicosis

Zychowski

Hoffmann

et al. 2013

Toxins

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Aflatoxin B1 (AFB1) is a potent carcinogen that causes growth stunting, immunosuppression and liver cancer in multiple species. The recent trend of replacing fishmeal with plant-based proteins in fish feed has amplified the AFB1 exposure risk in farm-raised fish. NovaSil (NS), a calcium montmorillonite clay, has previously been shown to reduce AFB1 bioavailability safely and efficaciously in several mammalian species. This study was designed to: (1) evaluate AFB1 impact on cultured red drum, Sciaenops ocellatus, over the course of seven weeks; and (2) assess NS supplementation as a strategy to prevent aflatoxicosis. Fish were fed diets containing 0, 0.1, 0.25, 0.5, 1, 2, 3, or 5 ppm AFB1. Two additional treatment groups were fed either 5 ppm AFB1 + 1% NS or 5 ppm AFB1 + 2% NS. Aflatoxin B1 negatively impacted red drum weight gain, survival, feed efficiency, serum lysozyme concentration, hepatosomatic index (HSI), whole-body lipid levels, liver histopathological scoring, as well as trypsin inhibition. NovaSil inclusion in AFB1-contaminated diets improved weight gain, feed efficiency, serum lysozyme concentration, muscle somatic index, and intraperitoneal fat ratios compared to AFB1-treated fish. Although not significant, NS reduced AFB1-induced histopathological changes in the liver and decreased Proliferating Cell Nuclear Antigen (PCNA) staining. Importantly, NS supplementation improved overall health of AFB1-exposed red drum.

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Section: Discussionmentioning

confidence: 99%

The Effect of Aflatoxin-B1 on Red Drum (Sciaenops ocellatus) and Assessment of Dietary Supplementation of NovaSil for the Prevention of Aflatoxicosis

Zychowski

Hoffmann

et al. 2013

Toxins

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show abstract

“…Several authors have reported poor growth performances of marine species fed on diets containing soybean oil at high levels, such as European sea bass (Parpoura and Alexis 2001), drum fish (Sciaenops ocellatus) (Tucker et al 1997) and gilthead seabream (Kalogeropoulos et al 1992). Marine fish are generally considered to be incapable of synthesizing long chain highly unsaturated fatty acids, namely eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), from C18 fatty acids, which must, therefore, be supplied in the diet.…”

Section: Adc (%) Dietmentioning

confidence: 99%

Growth, digestibility and nutrient utilization of rainbow trout (Oncorhynchus mykiss) and European sea bass (Dicentrarchus labrax) juveniles fed different dietary soybean oil levels

et al. 2005

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A shortage of marine raw ingredients, such as fish oil, is predicted in the near future. The use of suitable alternative lipid sources, such as vegetable oils, is crucial for sustainable growth of the aquaculture sector. Three isonitrogenous (50% Crude Protein) and isoenergetic (19 kJ g )1 ) diets, in which fish oil was gradually replaced by soybean oil (0, 25 and 50% of the oil fraction) were tested for 12 weeks, using European sea bass (Dicentrarchus labrax) and rainbow trout (Oncorhynchus mykiss) juveniles. No dietary effects (p>0.05) on growth performance, feed conversion, digestibility or body composition were observed with either species. The results obtained suggest the inclusion of soybean oil up to 50% of the dietary lipid is possible, in diets for sea bass and/or rainbow trout juveniles.

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“…In addition, some researchers have described histological changes in tissues of fish fed diets containing different lipid sources. 17,18 Histological analysis of the digestive system is considered a good indicator for understanding of the nutritional status of fish. 19,20,21 The liver is the most important organ in digestion and absorption of nutrients from food, and therefore monitoring of these organs is considered necessary.…”

Section: Introductionmentioning

confidence: 99%

Effect on Histology and Nutrient Digestibility of Supplemented Origanum onites Essential Oil to Rainbow Trout Diets (Oncorhynchus mykiss)

Yiğit¹,

Diler²,

Koca³

et al. 2017

IJPER

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The present experiment was conducted to describe the effects on histology (experiment 1) and nutrient digestibility (experiment 2) of rainbow trout fed with diet containing O. onites oil. Diets were prepared with supplemented in different concentrate (0, 0.125, 1.5, 2.5, 3.0 ml kg -1 ) of O. onites oil. A total of 1050 trout (body weight 26.05 ± 0.15 g) were randomly stocked into 15 tanks. The experiments were done in triplicate.In the experiment 1, rainbow trout were fed during 90 day for histology analysis. Five fish samples from per tank were taken at the end of the experiment. Liver and kidney histopathology of the control fish showed a normal histological architect without indication of any deformity. Slightly necrosis or degeneration were observed in liver and kidney samples of fish fed with high level of O. onites oil in diets. In the experiment 2, nutrient digestibility study was conducted for 2 week in following of the histology experiment. Nutrient digestibility was determined using 0.5 % Cr 2 O 3 as an indicator to diet. Feces were collected by siphon from bottom of tanks during 2 week. The end of the experiment, dry matter, protein and lipid digestibility did not affect with supplemented in different concentrate of O. onites oil to trout diet.

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The effects of experimental starter diets with different levels of soybean or menhaden oil on red drum (Sciaenops ocellatus)

Cited by 50 publications

References 27 publications

The Effect of Aflatoxin-B1 on Red Drum (Sciaenops ocellatus) and Assessment of Dietary Supplementation of NovaSil for the Prevention of Aflatoxicosis

The Effect of Aflatoxin-B1 on Red Drum (Sciaenops ocellatus) and Assessment of Dietary Supplementation of NovaSil for the Prevention of Aflatoxicosis

Growth, digestibility and nutrient utilization of rainbow trout (Oncorhynchus mykiss) and European sea bass (Dicentrarchus labrax) juveniles fed different dietary soybean oil levels

Effect on Histology and Nutrient Digestibility of Supplemented Origanum onites Essential Oil to Rainbow Trout Diets (Oncorhynchus mykiss)

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