Comparative effect of advanced soy products or corn protein concentrate with porcine meal on growth, body composition, and distal intestine histology of Florida pompano, Trachinotus carolinus

Abstract

The present study was designed to investigate the effects of diets containing advanced soy products (enzyme‐treated soy and fermented soy) or corn protein concentrate (CPC) in combination with porcine meal (PM) to completely replace poultry byproduct meal (PBM) on growth performance, body composition, and distal intestine histology of Florida pompano, Trachinotus carolinus. Four experimental diets were formulated to be isonitrogenous and isolipidic, to contain 400 g/kg crude protein and 80 g/kg lipid. A reference diet (PBM diet [PBMD]) contained 150 g/kg PBM and 495 g/kg soybean meal (SBM), and three test diets were formulated replacing PBM with 15 g/kg of CPC (CPC diet [CPCD]) or replacing all SBM and PBM with 535 g/kg fermented soy (fermented soybean meal diet [FSBMD]) or 451.3 g/kg enzyme‐treated soy (enzyme‐treated soybean meal diet [ESBMD]). All three test diets were supplemented with 38 g/kg of PM. Diets were fed based on a percentage of bodyweight adjusted after sampling the fish every 2 weeks to triplicate groups of Florida pompano juveniles (mean weight 8.06 ± 0.22 g). After 8 weeks of feeding, fish fed CPCD and ESBMD performed equally well in terms of final body weight, thermal growth coefficient, and percentage weight gain in comparison to fish fed PBMD. In all cases, feeding FSBMD resulted in poor feed conversion and lower feed intake compared to other treatments. Protein retention efficiency, whole‐body proximate composition, phosphorus, sulfur, potassium, magnesium, calcium, sodium, and zinc contents were not significantly influenced by the dietary treatments. The results obtained in the present histological study showed no significant differences in the thickness of serous layer, muscular layer, and submucosal layer of the intestine among treatments. Fish fed CPCD showed a significant widening of the lamina propria with an increase of cellular infiltration and higher presence of goblet cells compared to other dietary treatment. Based on these results, 451 g/kg ESBM or combination of 150 g/kg of CPC and 495 g/kg SBM supplemented with 38 g/kg PM can be utilized to develop a practical diet for juvenile Florida pompano without impacting growth, nutritive parameters, and several distal intestine health parameters.

Effect of substituting fishmeal with corn protein concentrate on growth performance, nutrient utilization and skin coloration in red hybrid tilapia, Oreochromis sp.

“…Direct comparisons of the results of the present study with other published studies on the use of CPC in fish feeds, with the exception of Khalifa et al (), are not possible since CPC was used as a part of a protein blend to replace FM in the diets of Atlantic salmon (Burr et al, ) and Florida Pompano (Cook et al, ; Novriadi et al, ). Nevertheless, similar successful partial replacement of FM with corn protein sources has been reported in other studies; for instance, CGM successfully substituted FM in the diets of turbot, Psetta maxima (Regost, Arzel, & Kaushik, ), two‐banded seabream, Diplodus vulgaris (Bulut et al, ) and Nile tilapia (El‐Ebiary, ).…”

“…To date, limited published information is available on the use of CPC in aquafeeds. Non‐lysine‐enhanced CPC (Empyreal ® 75; Cargill Corn Milling) with lysine content of about 11 g/kg (as is basis) had been evaluated as part of various protein blends for replacement of animal protein sources in the diets of Atlantic salmon Salmo salar (Burr, Wolters, Barrows, & Hardy, ) and Florida Pompano Trachinotus carolinus (Novriadi, Spangler, & Davis, ). High lysine CPC (Lysto ® ) has been reported for use as a protein blend in the diets of Florida Pompano (Cook, Zhou, Rhodes, & Davis, ) and as a direct replacement of dietary FM in the diets of Nile tilapia, Oreochromis niloticus (Khalifa, Belal, El‐Tarabily, Tariq, & Kassab, ).…”

Partial or total replacement of fish meal in the diets of Florida pompano Trachinotus carolinus

“…In addition, still from the same study, the number of goblet cells slightly increased in the distal intestine of pompano fed with plant‐based diet with an increase in cellular infiltration compared to fish fed 15% PBM. However, the nutritional effect of soy protein to the distal intestine of pompano is not clear since the complete replacement of animal meal and conventional SBM with ESBM in the comparative effect study did not cause any significant alterations compared to the reference diet (Novriadi, Spangler, & Allen Davis, ).…”

Application of meta‐analysis towards understanding the effect of adding a methionine hydroxy analogue in the diet on growth performance and feed utilization of fish and shrimp

“…Less expensive protein sources, especially plant proteins that provide a steady supply and availability of large quantities, have grown in popularity within the aquafeed industry for more than a decade. Considerable effort has gone into the development and validation of high soya feed formulations for shrimp and fish (Cheng et al 2018; Novriadi et al 2018; Qiu et al 2018). Methionine (Met) is usually the first limiting amino acid which plays an important role for many fish and shrimp diets, especially those containing higher levels of plant protein sources (Mai et al 2006; Espe et al 2008).…”