A meta-analysis to determine factors associated with the severity of enteritis in Atlantic salmon (Salmo salar) fed soybean meal-based diets
نویسندگان
چکیده
A meta-analytic approach was used to determine factors associated with the severity of enteritis in distal intestine Atlantic salmon fed soybean meal (SBM)-based diets. Dataset from 26 fish studies were extracted and standardized for use meta-analysis. After standardization, data analyzed ordinal logistic regression model by comparing SBM treatment(s) each study neutral-reference treatment. The log-odds ratio proportional odds its standard error using random effects estimate effect size dietary on four semi-quantitative histological variables: reduction mucosal fold height; disappearance supranuclear vacuolization; inflammatory cell infiltration lamina propria, submucosa. Both univariate multivariate meta-regression identify significant association salmon. results showed that production phase, feed type, inclusion level, year water temperature are significantly Further meta-analysis sub datasets according revealed reared seawater more prone develop compared freshwater. absence positive relationship between level probably due difference source, batch, processing, anti-nutritional different combined Subgroup analysis based SBM-based diets has decreased over years. Additional diet at low increased enteritis, raised high temperature. Linear quadratic regressions conducted explore possible impact performance, specific growth rate thermal coefficient enteritis. However, this depends phase variables analysis. current concluded temperature, but not exposure time. Also, reduced • Fish Severity Increasing did increase performance
منابع مشابه
Atlantic salmon – Salmo salar
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ژورنال
عنوان ژورنال: Aquaculture
سال: 2022
ISSN: ['0044-8486', '1873-5622']
DOI: https://doi.org/10.1016/j.aquaculture.2022.738214