Effects of replacement of fishmeal with cottonseed protein concentrate on the growth, intestinal microflora, haematological and antioxidant indices of juvenile golden pompano ( Trachinotus ovatus )

Supplementing Chitosan Oligosaccharide Positively Affects Hybrid Grouper (Epinephelus fuscoguttatus ♀ × E. lanceolatus ♂) Fed Dietary Fish Meal Replacement With Cottonseed Protein Concentrate: Effects on Growth, Gut Microbiota, Antioxidant Function and Immune Response

“…Furthermore, the gut microbiota community structure is affected by the fish cultivation environment and available dietary nutrients (Li et al, 2018a). Related studies have reported that replacing fish meal with plant protein changes the fish intestinal microbiota community, and a high proportion of fish meal replacement may have adverse effects on the fish microbiota (Gy et al, 2020;Shen et al, 2020). However, oligosaccharide supplementation can adjust the balance between probiotics and conditional pathogens, thereby balancing the intestinal microflora (Mussatto and Mancilha, 2007).…”

“…Antioxidant function is an important means of maintaining homeostasis in fish (Pérez-Jiménez et al, 2014). Previous studies have found that dietary fish meal replacement with plant proteins hinders the antioxidant functions in marine fish, such as grouper (Yin et al, 2018), golden pompano (Trachinotus ovatus) (Shen et al, 2020), and totoaba juveniles (Totoaba macdonaldi). The liver is the main organ involved in TG metabolism.…”

“…As a new type of plant protein, cottonseed protein concentrate (CPC) has recently received much attention from researchers (Wan et al, 2018;Ye et al, 2020). Accordingly, the experimental replacement of fish meal with CPC has been conducted for certain aquaculture species, such as hybrid grouper (Chen et al, 2020), juvenile golden pompano (Trachinotus ovatus) (Shen et al, 2020), and pacific white shrimp (Litopenaeus vannamei) (Wan et al, 2018). However, researchers have found that replacing fish meal with high levels of CPC can decrease growth performance and cause intestinal inflammation issues in hybrid groupers (Yin et al, 2018).…”

Supplementing tributyrin to cottonseed protein concentrate‐based diets can improve growth performance, lipid metabolism and distal intestinal immunity in hybrid grouper ( Epinephelus fuscoguttatus ♀ × Epinephelus lanceolatus ♂)

“…And it has a greater advantage compared with the traditional process of high-temperature pressing. Previous researches in our lab found that CPC can be used relatively well on both juvenile hybrid grouper (Epinephelus fuscoguttatus ♀ × Epinephelus lanceolatus ♂) (Yin et al, 2018), juvenile golden pompano (Trachinotus ovatus) (Shen et al, 2020) and silver sillago (Sillago sihama Forsskál) (Liu et al, 2020). In hybrid grouper, CPC can replace 34.37% of fishmeal protein without significant negative effects.…”

Effects of Low- and High-Level Gossypol and Sodium Butyrate Supplementation Under High-Level Gossypol Condition on Growth Performance and Intestinal Health of Hybrid Grouper (Epinephelus fuscoguttatus♀×Epinephelus lanceolatus♂)

“…The addition of 900 mg/kg of gossypol to the feed significantly reduced the weight gain (WG) and feed utilization of channel catfish (Ictalurus puctatus) (Yildirim et al, 2003), while the growth performance of gibel carp (Carassius auratus gibelio) was significantly reduced when dietary gossypol went above 300 mg/kg, with gossypol residue in the tissues increased (Jiang, 2011); at levels above 900 mg/kg, the liver function of the gibel carp was also damaged. When cottonseed protein concentrate (CPC) was used to replace FM, the growth of hybrid grouper (Yin et al, 2018) and golden pompano (Trachinotus ovatus) (Shen et al, 2020) was significantly increased at low-level substitution. We suspect that this facilitation effect is related to the low-level gossypol contained in the CPC.…”