Compound immunopotentiator for turbot as well as preparation method and application of compound immunopotentiator

Abstract

The invention relates to an aquatic feed premixing additive, in particular to a compound immunopotentiator for turbot as well as a preparation method and an application thereof. The feed additive is prepared from the following components in parts by weight: 5 to 15 parts of tea polyphenol, 10 to 15 parts of grape seed extract, 15 to 20 parts of onion skin, 8 to 12 parts of allicin, 10 to 15 partsof chitosan, 3 to 6 parts of mannan oligosaccharide, 5 to 10 parts of radix et rhizoma rhei, 10 to 15 parts of radix scutellariae, 10 to 15 parts of cortex phellodendri, 10 to 15 parts of vitamin C and 5 to 10 parts of vitamin E. The compound immunopotentiator disclosed by the invention can be used as a feed additive in turbot basal feed, and can completely replace antibiotics; the compound immunopotentiator can effectively improve the body immunity of turbots and increase the survival rate of turbots, and has no adverse effect on the palatability of feed; and the composite immunopotentiator has no pollution, no residue, no toxic or side effect and no adverse reaction after being used for turbot culture, and is safe and environment-friendly.

Description

technical field [0001] The invention relates to a premixed additive for aquatic feed, in particular to a compound immune enhancer for turbot fish and its preparation method and application. Background technique [0002] Turbot (Scophthalmus maximus) belongs to the Osteophytes, Plaiceidae, Plaiceidae, English name Turbot, commonly known as European flatfish, commonly known as "turbofish" in China, native to the Atlantic Ocean in Europe, is one of the world's recognized high-quality flatfish . In 1992, it was introduced from the United Kingdom by the Yellow Sea Fisheries Research Institute of China. After the success of large-scale seed production in 1999, it was promoted in the northern coast and became an important object of mariculture. [0003] However, in the past 30 years, the rapid development and non-standard operation of farming have led to increasingly prominent problems in farming, mainly including the increasing severity of diseases, the extensive use of antibioti...

AI Technical Summary

Problems solved by technology

At present, Chinese herbal medicine preparations, probiotics and prebiotics are mostly studied in improving the immunity of turbot, but the effects are often not obvious enough and the course of treatment is long