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

Abstract

The objective of this study was to evaluate the effects of fishmeal (FM) replacement with corn protein concentrate (CPC) on growth performance, nutrient utilization, gut morphology and skin coloration of red hybrid tilapia, Oreochromis sp. Five isonitrogenous (350 g/kg crude protein) and isolipidic (10 g/kg lipid) diets were formulated to contain CPC that substituted 0%, 25%, 50%, 75% or 100% FM. Diets were fed to triplicate groups of tilapia (mean initial weight, 10.33 ± 0.02 g) twice daily for 63 days. The results showed that replacing up to 50% FM in red hybrid tilapia diet with CPC did not show any significant adverse effects on growth, feed utilization, haematocrit counts, condition factor and gut morphology of tilapia (p > 0.05). However, replacing 75% or 100% FM with CPC had deleterious effects (p < 0.05). Carotenoids in CPC contributed to skin yellowness, which was significantly higher in the diet where 100% FM was replaced with CPC. Using regression analysis, the optimal substitution level of FM by CPC was estimated at 25% for percentage weight gain, 33% for FCR and 29% for protein efficiency ratio. CPC could be used as a single plant protein source to substitute up to 50% FM in red hybrid tilapia diets.

Partial replacement of fishmeal with corn protein concentrate in diets for rainbow trout (Oncorhynchus mykiss): Effects on growth performance, physiometabolic responses, and fillet quality

“…The results of our study declared that lightness value decreased in diets containing CPC compared with the control group, which coincided with Herath et al 2016 of those fish fed with dietary CPC can be explained by the high content of carotenoids, especially lutein and zeaxanthin in corn (Scott & Eldridge, 2005). In similar studies, fish fed with CPC and CGM had high a * value in the fillet of red hybrid tilapia and rainbow trout (Ng et al, 2019;Saez et al, 2016).…”

“…In a similar study, Ng et al (2019) reported that substitution fishmeal with CPC up to 50% in the diet of red hybrid tilapia had no adverse effects on the growth performance and feed efficiency.…”

Dietary effect of low fish meal aquafeed on gut microbiota in olive flounder (Paralichthys olivaceus) at different growth stages

“…Plant protein origins have advantages in price, stable supply, and nutritional composition (Daniel, 2018;Gatlin et al, 2007). A wide range of plant protein ingredients such as soybean (Murashita et al, 2018;Ye et al, 2019;Zhang et al, 2018), corn gluten (Gerile & Pirhonen, 2017), corn-protein concentrate (Ng, Leow, & Yossa, 2019), wheat gluten (Monge-Ortiz et al, 2016), rapeseed (Dossou et al, 2018), peas (Nogales-Mérida, Tomás-Vidal, Moñino-López, Jover-Cerdá, & Martínez-Llorens, 2016), canola (Thiessen, Maenz, Newkirk, Classen, & Drew, 2004), cottonseed (Pham et al, 2008;Pham, Lee, Lim, & Park, 2007), and rice distillers' dried grain (Bae, Kim, & Lee, 2015) have been explored as FM alternatives in aquafeed. However, the presence of antinutritional factors or nutritional imbalance in the plant proteins that might negatively affect fish growth, gut microbiota composition, immune response, and survivability (Desai et al, 2012;Liang et al, 2019).…”

Agroecologia Na Percepção Da Agricultora Do Assentamento Sumaré Ii

“…Dessa forma, pesquisas para a incorporação de ingredientes alternativos para a alimentação aquática vêm sendo realizadas (SHAHIDI e AMBIGAIPALAN, 2015;SHAH, et al, 2018;NG et al, 2019;ZETTL et al, 2019). Neste contexto, o rejeito de pesca é uma fonte abundante de proteína que pode torna-se um ingrediente alternativo na aquicultura, além de oferecer um destino economicamente viável para a fauna acompanhante.…”