Impact of brewer's yeast extract and levamisole in diets with vegetable oils on the growth, chemical composition, and immunological and biochemical blood parameters of pikeperch (Sander lucioperca)

Abstract

The impact of applying NuPro® (40 g/kg feed) and levamisole (300 mg/kg feed) in European pikeperch (Sander lucioperca) diets with vegetable oils on growth, immunological, hematological, and blood chemical parameters was assayed. The fish were fed the feed containing sunflower and linseed oils (48 and 21 g/kg feed) (group VO) or this feed with levamisole (group VOL) or NuPro ® (group VON). The fourth group was fed the feed with fish oil added in the amount of 69 g/kg feed (group FO). The pikeperch were reared for 56 days. Feeding the fish feed supplemented with levamisole or NuPro ® increased the immunological responses of the phagocytes and lymphocytes, lysozyme activity, and total gamma-globulin levels. The feed supplemented with NuPro ® resulted in decreased aspartate and alanine aminotransferase and alkaline phosphatase activity. Vegetable oils in the feed were linked to increased contents of linoleic acid in fish bodies. The quantity of eicosapentaenoic and docosahexaenoic acids was significantly the highest in group FO. The immunological index obtained in group VON indicated that the diet supplemented with brewer's yeast extract (NuPro ® ) was the most advantageous when feeding juvenile pikeperch feeds with vegetable oils.

Fishmeal, plant protein, and fish oil substitution with single-cell ingredients in organic feeds for European sea bass (Dicentrarchus labrax)

“…However, this result was in agreement with complement activity measured in striped bass and gilthead seabream ( Ortuno et al, 2002 ; Li and Gatlin, 2005 ). The ceruloplasmin remained unchanged as already shown in pikeperch ( Kowalska et al, 2015 ).…”

“…Finally, a dietary dose of 4%-8% yeast protein had a stimulating effect on the blood respiratory burst activity and on the liver morphology, reducing steatosis and fat degeneration observed in European labrax ( D. labrax ) while no effect was observed on the gut histology (Panagiotidou et al, 2016). In the current study, the immunostimulating activity of SCPs was observed through a significantly increased lysozyme activity at the two highest inclusion levels of SCI, as has been previously obtained with dietary yeast in pikeperch and tilapia ( Kowalska et al, 2015 ; Chen et al, 2019 ). This suggests a better defensive potential of those fish fed SCI against Gram-positive bacterial pathogens.…”

The Utilization of Algae with the Aim to Increase the Fatty Acid Content in Muscle of Common Carp (Cyprinus carpio L.)

“…The contents of fatty acids is strongly affected by the pattern of lipids in their food, in all fish species. The oil content, especially the n-3 unsaturated fatty acids, results in the high dietetic value of fish muscles (Steffens, 1997;Kminkova et al, 2001;Kowalska et al, 2015).…”

Efficacy of a therapeutic bath with selected antiparasitic drugs on a Dactylogyrus anchoratus infection in juvenile common carp (Cyprinus carpio)

“…In fish, a bath treatment at a concentration of 50 mg l -1 for 2 h is recommended (Stoskopf 1993;Kolarova et al 2015;Palikova et al 2019;Kibenge et al 2021). Levamisole has also been shown to be a suitable immunostimulant for fish (Mulero et al 1998;Morrison et al 2000;Gopalakannan and Arul 2006;Li et al 2006;Hang et al 2014;Kowalska et al 2015;Alves et al 2019;Biller et al 2019).…”