Fermented corn protein concentrate to replace fishmeal in practical diets for Pacific white shrimp Litopenaeus vannamei

Abstract

The latest corn-based ingredient available in the market today is fermented corn protein concentrate (FCPC), which is expected to perform well in shrimp diets due to its nutritional profile and the probiotic properties of the product. The current study was conducted to evaluate the efficacy of FCPC as a replacement for fish meal (FM) in diets of Pacific white shrimps, Litopenaeus vannamei. Graded levels of FCPC (0, 4, 8, 11, 13 and 15 g/100 g) were used to replace fishmeal (16, 12, 8, 4, 2 and 0 g/100 g) in diet, which was evaluated over a 8-week growth trial (initial weight 0.17 ± 0.01 g; n = 3). At the conclusion, no significant differences were detected in growth, FCR, survival or haematological parameters of shrimp (p > 0.05). Results reveals the efficacy of FCPC to replace 100% fishmeal at an inclusion level as high as 15%, without compromising the performances of shrimp. Significant increase in total haemocyte count (THC) and astaxanthin level in shrimp in response to the inclusion level of FCPC was assumed to be due to the probiotic properties of fermented corn and due to the availability of bio-convertible carotenoids in FCPC, respectively.

Effect of fermented corn protein concentrate on growth performance, haemocyte counts, histological structure of hepatopancreas and intestinal condition of pacific white shrimp Litopenaeus vannamei

“…In the present study, significant differences were observed in final biomass, final mean weight and the thermal growth coefficient among the treatments. The differences could be attributed to the addition of 6) could be the reason for similar growth performance among shrimp fed with the experimental diets and the basal diet (Galkanda-Arachchige et al, 2021).…”

“…Recently, Galkanda‐Arachchige et al. (2021) reported the efficacy of FCPC as the latest advance products of corn‐based ingredients to maintain the growth, FCR and survival of shrimp L. vannamei with gradual inclusion from 4% to 15% to partially and completely replace the use of FM in the diet. The authors suggest that the better nutritional profile with no deficiencies in amino acids (Table 6) could be the reason for similar growth performance among shrimp fed with the experimental diets and the basal diet (Galkanda‐Arachchige et al., 2021).…”

“…According to Galkanda‐Arachchige et al. (2021), CPC is one of the manufactured corn protein source originating from the endosperm after removal of the majority of non‐protein components by enzymatic solubilisation of the protein stream obtained from the wet milling process. However, due to the inconsistency results when incorporating CPC in shrimp diet (Zhou et al., 2014), better productivity could be achieved by using more advanced technology to produce ingredients that has superior nutritional profile and closer to the natural diet of Shrimp L. vannamei .…”

“…Recently, Galkanda‐Arachchige et al. (2021) reported about the use of fermented corn protein concentrate (FCPC) as the latest corn‐based ingredients with high protein content (∼ 69.10%), low fibre and contain probiotic properties to replace the use of FM in the practical diets of shrimp L. vannamei . However, the effect of complete substitution of FM and partial substitution of FM and poultry by‐product meal (PBM) with FCPC with or without krill meal (KM) on the growth and health status of shrimp L. vannamei has not yet been studied.…”

“…of vitamin E in shrimp diet could enhance the resistance of shrimp to acute changes in salinity.Moreover, Zheng et al (2017) reported that the addition of Lactobacillus plantarus significantly improved the resistance of L. vannamei against the stress of acute low salinity, as indicated by higher survival rates and increase on Prophenoloxidase (ProPO) transcript levels. Since FCPC could enhance the non-specific immune system of shrimp due to the probiotic properties contain in the final product(Galkanda-Arachchige et al, 2021), better survival is possible through the benefits derived from the FCPC.…”