The potential of soya oil industry products as oil alternatives in rainbow trout (Oncorhynchus mykiss) diet

Amirkolaie, A. Keramat; Shahkolaie, M. Darvishy; Karimzadeh, S.; Khalesi, Mohammad

doi:10.1007/s10499-013-9730-x

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…Oil products resulted from a vegetable oil extraction factory have a potential as feed ingredients to replace vegetable oils in fish feed. Fat powder is an alternative lipid source that can be replaced by both fish and vegetable oils (Amirkolaie, Shahkolaie, Karimzadeh, & Khalesi, ). However, this product still has a low digestibility due to a large content of saturated fatty acids (Amirkolaie et al., ).…”

Section: Introductionmentioning

confidence: 99%

Growth performance, nutrient digestibility and lipase activity in juvenile rainbow trout (Oncorhynchus mykiss) fed fat powder in diet containing emulsifiers (cholic acid and Tween-80)

et al. 2017

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This research was conducted to investigate the effects of two dietary emulsifiers on nutrient digestibility and lipase activity in rainbow trout (Onchorhyncus mykiss). A basal rainbow trout diet containing fat powder supplemented with 10 and 5 g kg −1 of cholic acid, and 20 and 40 g kg −1 of Tween-80. Control diet contained no emulsifiers with fat powder was replaced by fish oil. Each diet was randomly assigned to 1,500-L tanks in triplicate. Juvenile rainbow trout with an initial weight of 27.32 ± 2.03 g were randomly distributed in the experimental tanks. The results showed that growth parameters did not change by the addition of the two emulsifiers (p > .05). Total triglyceride content was significantly higher in control fish fed diet containing fish oil (p < .05), while serum cholesterol content showed no significant differences among treatments (p > .05). Control diet resulted in a higher fat digestibility than those of other experimental diets. However, protein and ash digestibilities in diet containing emulsifier were higher than those of the control diet. Control group showed the lowest lipase activity, whereas 20 g kg −1 Tween-80 diet caused the highest lipase activity among treatments (p < .05). In conclusion, it seems that a higher lipase activity induced by the emulsifiers could not compensate for the negative impacts of fat powder on the experimental diets. K E Y W O R D Semulsifier, enzyme activity, fat digestibility, fat powder, lipase, rainbow trout

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Section: Introductionmentioning

confidence: 99%

Growth performance, nutrient digestibility and lipase activity in juvenile rainbow trout (Oncorhynchus mykiss) fed fat powder in diet containing emulsifiers (cholic acid and Tween-80)

et al. 2017

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“…Among the fat sources, fish oil has been an ideal option to be added in fish diet in case of having unsaturated fatty acids and higher digestibility. On the contrary, using terrestrially based lipids like vegetable oil and fat powder, as alternative fat sources, could decrease the requirement for fish oil but they may reduce lipid digestibility (Amirkolaie et al, 2014). Vegetable oils are more resistant to lipolysis process than fish oil since lipase prefers to use polyunsaturated fatty acids as substrate (Austreng et al, 1979).…”

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confidence: 99%

Effects of lysophospholipid on rainbow trout ( Oncorhynchus mykiss ) growth, biochemical indices, nutrient digestibility and liver histomorphometry when fed fat powder diet

et al. 2021

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Global fish oil production is expected to be unsustainable because of distinction of ocean stocks and high demand (Natale et al., 2013).These limitations have forced aquaculture industry to replace lipid sources (Oliva-Teles et al., 2015). Among the fat sources, fish oil has been an ideal option to be added in fish diet in case of having unsaturated fatty acids and higher digestibility. On the contrary, using terrestrially based lipids like vegetable oil and fat powder, as alternative fat sources, could decrease the requirement for fish oil but they may reduce lipid digestibility (Amirkolaie et al., 2014). Vegetable oils are more resistant to lipolysis process than fish oil since lipase prefers to use polyunsaturated fatty acids as substrate (Austreng et al., 1979). On the other hand, low cholesterol level of vegetable oils

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The potential of soya oil industry products as oil alternatives in rainbow trout (Oncorhynchus mykiss) diet

Cited by 2 publications

References 24 publications

Growth performance, nutrient digestibility and lipase activity in juvenile rainbow trout (Oncorhynchus mykiss) fed fat powder in diet containing emulsifiers (cholic acid and Tween-80)

Growth performance, nutrient digestibility and lipase activity in juvenile rainbow trout (Oncorhynchus mykiss) fed fat powder in diet containing emulsifiers (cholic acid and Tween-80)

Effects of lysophospholipid on rainbow trout ( Oncorhynchus mykiss ) growth, biochemical indices, nutrient digestibility and liver histomorphometry when fed fat powder diet

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