Effect of dietary soybean lecithin on fish performance, hemato-immunological parameters, lipid biochemistry, antioxidant status, digestive enzymes activity and intestinal histomorphometry of pre-spawning Caspian brown trout (Salmo trutta caspius)

Haghparast, Rezvaneh Jenabi; Moghanlou, Kourosh Sarvi; Mohseni, Mahmoud; Ahmad, Iqbal

doi:10.1016/j.fsi.2019.05.022

Cited by 31 publications

(7 citation statements)

References 51 publications

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“…These findings revealed that this lecithin‐containing product enhanced the health status of adult Nile tilapia. Similar results were also reported in stellate sturgeon (Jafari et al, 2018) and Caspian brown trout ( Salmo trutta caspius ) (Haghparast et al, 2019), where dietary lecithin improved the performance and health of these fishes.…”

Section: Discussionsupporting

confidence: 81%

Lecithin‐containing bioemulsifier boosts growth performance, feed digestion and absorption and immune response of adult Nile tilapia ( Oreochromis niloticus )

2021

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The present study evaluated the effects of a commercial soy lecithin‐containing bioemulsifier Lysomax® on growth performance, feed utilization, haematology, immune response and gut histology of adult Nile tilapia (Oreochromis niloticus) fed soybean meal‐based diets, containing plant oil as a lipid source. This emulsifier was incorporated into four isonitrogenous (30% cp), isocaloric (17.5 MJ/kg) test diets, at 0 (control), 0.3, 0.6 and 0.9 g/kg feed. The diets were fed to triplicate groups of adult Nile tilapia, reared in a closed recirculating indoor system, at a daily rate of 3% of fish live weight, twice a day for 60 days. Growth rates, feed utilization efficiency, digestive enzymes activities, blood parameters, liver function enzymes and immunological responses were all boosted (p < .05) with increasing supplemental Lysomax up to 0.3 g/kg diet, followed by a significant retardation (p < .05) at 0.6 and 0.9 levels. Muscle n‐6 and n‐3 polyunsaturated fatty acids (PUFA) and n3/n6 ratio were also increased with increasing Lysomax up to 0.3 level and then levelled off with further increase in dietary Lysomax. The highest length and width of the intestinal microvilli and goblet cell counts were also found in the fish fed on 0.3 g Lysomax/kg diet. However, the quadratic regression analyses of the obtained results indicated that the maximum performance occurred at about 0.45 g/kg of dietary Lysomax. These results suggest that lecithin‐containing bioemulsifier Lysomax® can play a significant role in feed digestion and absorption and improving fish performance and innate immune response. About 0.45 g/kg diet would be sufficient for best performance and health status of farmed Nile tilapia.

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Section: Discussionsupporting

confidence: 81%

Lecithin‐containing bioemulsifier boosts growth performance, feed digestion and absorption and immune response of adult Nile tilapia ( Oreochromis niloticus )

2021

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“…The results of this study showed that the activities of pepsin and gastric amylase in the FM group were significantly higher than those in the ESM group, which indicated that rainbow trout fed FM diet possessed stronger digestive capacity than that in the ESM group, which may help us to understand why the fish consumed ESM diets with poor growth performance. A similar result was found in a previous study on pre‐spawning Caspian brown trout (Salmo Trutta caspius ) (Haghparast et al, 2019). Bile acid can also act as an important signalling molecule to regulate glucose metabolism (Shapiro et al, 2018), which might help in improving gastric amylase activity induced by supplemental bile acid in the diet.…”

Section: Discussionsupporting

confidence: 91%

Effects of supplemental amino acids and bile acid in a completely replaced fish meal by enzymatically hydrolysed soybean meal diet on growth performance, liver health and fillet quality of rainbow trout ( Oncorhynchus mykiss )

Hang

You

Jin

et al. 2022

Aquaculture Research

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In order to evaluate the supplemental effects of amino acids and bile acid to completely replace fish meal by enzymatically hydrolysed soybean meal diet for rainbow trout (Oncorhynchus mykiss), a 56‐day feeding trial was conducted with five diets, including 40% fish meal (FM) as a positive control diet, 45% enzymatically hydrolysed soybean meal without the fish meal (ESM) as a negative control diet, the addition of methionine (Met) and lysine (Lys) (0.76%) to the ESM diet (E+A), the addition of 0.02% bile acid to ESM diet (E+B) and the addition of Met and Lys (0.76%) and 0.02% bile acid to ESM diet (E+AB). The results showed that the ESM group reduced the growth performance but significantly alleviated the liver health problem, decreased lipid and saturated fatty acids (SFA) contents and increased protein content in fish muscle. The E+A group significantly improved growth performance, pepsin activity and fillet protein content, while the E+B group inhibited growth and protease activity but increased amylase activity, elevated SFA, monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA) contents and improved lipid utilization. The E+AB group had superiority in enhancing liver health compared with E+A and E+B groups. This study suggested that supplemental amino acids and bile acid alone or in combination can be used according to practical feeding demand.

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“…The different effects on amylase activity could be due to the different fatty acid profiles in the selected lipid sources. Jenabi Haghparast et al (2019) found similar results: LA‐rich soybean oil and lecithin could significantly increase the activity of amylase compared with fish oil in the diets of Caspian brown trout ( Salmo trutta caspius ). Furthermore, it is worth mentioning that the lipase activity was higher when E .…”

Section: Discussionmentioning

confidence: 77%

Effects of dietary lipid sources on the survival, growth, body composition, antioxidant capacity and expression of antioxidant and pro‐inflammatory genes in juvenile Chinese mitten crab ( Eriocheir sinensis ) reared under three salinities

Wen

Jiang

Yuan

et al. 2021

Aquaculture Research

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A 60‐day feeding experiment was performed to investigate the survival, growth, body composition, antioxidant capacity and related gene expression of Eriocheir sinensis which were fed diets with different lipid sources under three salinities. Five feeds were formulated with one of the candidate oils (fish oil, soybean oil, linseed oil, colza oil or palm oil) and were named FO, SO, LO, CO or PO respectively. Results showed that the survival rate (SR) of E. sinensis showed a decreasing tendency as the salinity increased. But SR was not significantly affected by dietary lipid sources at each salinity. Weight gain rate (WGR) were highest in the treatment of FO/PO at a salinity of 0.5‰, CO/FO/SO at a salinity of 2‰ and LO at a salinity of 6‰ respectively. At salinities of 0.5‰ and 2‰, the transcription of pro‐inflammatory and antioxidant genes in LO was significantly higher than that in FO or PO. While at a salinity of 6‰, the transcription of detected genes in FO was markedly increased compared to that in the vegetable oil treatments. At each salinity, the eicosapentaenoic acid (EPA) contents showed comparable values among different dietary treatments. However, the docosahexaenoic acid (DHA) contents in E. sinensis fed the diets with FO were still significantly higher than those with vegetable oils. These results showed that increasing salinity decreased the antioxidant capacity and therefore negatively affected the survival and growth rates of experimental animals. The beneficial effects of FO on survival and growth performance were eliminated by increasing the salinity to 6‰, which could be due to the increased lipid peroxidation and inflammatory response caused by salinity stress. It was concluded that at the salinity of 0.5‰ and 2‰, the recommended lipid sources were FO/PO and CO/FO/SO respectively. While at the salinity of 6‰, LO was the most ideal lipid source for juvenile E. sinensis.

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Effect of dietary soybean lecithin on fish performance, hemato-immunological parameters, lipid biochemistry, antioxidant status, digestive enzymes activity and intestinal histomorphometry of pre-spawning Caspian brown trout (Salmo trutta caspius)

Cited by 31 publications

References 51 publications

Lecithin‐containing bioemulsifier boosts growth performance, feed digestion and absorption and immune response of adult Nile tilapia ( Oreochromis niloticus )

Lecithin‐containing bioemulsifier boosts growth performance, feed digestion and absorption and immune response of adult Nile tilapia ( Oreochromis niloticus )

Effects of supplemental amino acids and bile acid in a completely replaced fish meal by enzymatically hydrolysed soybean meal diet on growth performance, liver health and fillet quality of rainbow trout ( Oncorhynchus mykiss )

Effects of dietary lipid sources on the survival, growth, body composition, antioxidant capacity and expression of antioxidant and pro‐inflammatory genes in juvenile Chinese mitten crab ( Eriocheir sinensis ) reared under three salinities

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