Effects of dietary aflatoxin B₁on growth performance, body composition, haematological parameters and histopathology of juvenile Pacific white shrimp (Litopenaeus vannamei)

Abstract

An 8-week feeding trial was conducted to evaluate the effects of dietary aflatoxin B 1 (AFB 1 ) on growth performance, haematological parameters and histological changes in juvenile Pacific white shrimp, Litopenaeus vannamei. Six practical diets (455 g kg -1 protein, 78 g kg -1 lipid) with different levels of AFB 1 (0, 25, 50, 100, 500, 1000 lg kg À1 ) were formulated. Each diet was fed to triplicate groups of shrimps (initial weight: 0.52 g). The results showed that shrimp fed with control diet (0 lg kg À1 AFB 1 ) had significant higher weight gain (WG) and specific growth rate (SGR) than other groups. However, there were no significant differences in feed efficiency (FE) or hepatosomatic index (HSI) among all groups. Compared to the control diet, AFB 1 supplementation significantly changed the activities of shrimp serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), total antioxidant capacity (T-AOC) and glutathione S-transferase (GST) and the content of cholesterol (CHO). Histological damages were identified in the hepatopancreas of shrimp when dietary AFB 1 level was over 107.6 lg kg À1 . Based on this study, it was concluded that the AFB 1 level in Pacific white shrimp diet should be <38.1 lg kg À1 .

Growth performance, haematological parameters, antioxidant status and salinity stress tolerance of juvenile Pacific white shrimp (Litopenaeus vannamei ) fed different levels of dietary myo -inositol

“…The fish treated with different immunostimulants always have higher content of TP, ALB and GLO in serum than does the controls (Choudhury et al., ; Huang et al., ). In addition, some adverse conditions, such as bacterial infection, high water pH and aflatoxin B1, reduced TP and ALB in fish blood (Benli & Yildiz, ; Das, Ayyappan, & Jena, ; Yildiz & Aydin, ; Zeng et al., ). These results indicated that high level of TP, ALB and GLO in fish serum may improve the innate immune response (Mohamad & Abasali, ; Wiegertjes, Stet, Parmentier, & Van Muiswinkel, ).…”

Response of Pacific white leg shrimp (Litopenaeus vannamei) on exposure to aflatoxin in feed

“…Study results of Bintvihok et al () prove the presence of aflatoxin in breeding shrimps feeds. Zeng et al () reported that 16.9 µg/kg AFB1 was detected in the control shrimp diet without supplemental AFB1. Several other publications also reported that aflatoxin was detected in aquatic control diet (Boonyaratpalin et al, ; Han et al, ; Huang et al, ; Rajeev Raghavan et al, ).…”

Effects of Toxin Binder Biotox on Growth Performance Survival, Enzymatic Activity, Hematologichal and Biochemical Parameters of Fingerlings Rainbow Trout (Oncorhynchus mykiss) Fed Diets- Contaminated with Aflatoxin

“…In this study, fish fed in all treatment showed no effect on total serum protein, Albumin, and Globulin. In agremeant, Zeng et al [42,43] dietary AFB1 had no effect on serum total serum protein and Albumin in white shrimp.…”