Plant extracts powder have the characteristics of green, environmental protection, and safety, and it has been emphasized in culture applications, and it has gradually become a research hotspot, and it has gradually become a positive and productive alternative to antibiotics after feed resistance prohibition.
Plant Extract (PE) is a single or mixed substance obtained from plants by physical and chemical means, which contains polyphenols, alkaloids, polysaccharides, essential oils and other active substances. Polyphenols are the most abundant active components of PE, which have antioxidant, anti-inflammatory, antibacterial and anti-tumor activities. Similarly, other components (e.g., flavonoids, alkaloids) have multiple biological functions.
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Black tail is a famous fish and its market price is higher than that of bulk aquatic products. In the pond main cultivation, the high yield and high efficiency can be achieved by adopting the combination of fertilizer and water feeding; in the pond raising, the reasonable stocking density can be controlled, which can increase the breeding efficiency per unit area of ​​the pond.
Increase production and efficiency:
In 2011, in Wuhan, Tianmen, Jingzhou and other places, it was demonstrated to promote 40,000 mu of black tail ponds. The pond's main black tail is nearly red, and the yield per mu is about 500 kilograms, the per mu output value is 6000-8000 yuan, and the mu gain is more than 3,000 yuan; the pond is raised and the mu can be increased by 100-200 yuan.
Technical points:
(1) There are main breeding ponds, mixed ponds and nesting ponds.
(2) Restocking time. Winter fish can be stocked in the early spring in winter, and summer fish can be stocked in late May and early June.
(3) Stocking density. 1 The main raising: The acre is stocked with winter fish (more than 10 cm), about 1200 tails, and about 200 white sharks and summer flowers. Or acre rearing summer fish species (3.3 cm) 2-2.5 million fish species; 2 polyculture: acre put winter fish species (more than 10 cm) about 600; 3 sets of raising: acres of wintering fish species 50- 80 or 200-300 tail fish species;
(4) Feeding management. 1 After the fish species are stocked and 7-10 days after the lower pond, Mushi fully fermented manure 200-250 kg or green manure 200-300 kg, cultivate natural food organisms. 2 Feed a suitable compound feed (crude protein content of 32% or more), particle size palatable. 3 Aerators should be opened at a proper time to prevent hypoxia "floating head" or suffocation. Find and prevent fish diseases in a timely manner. 4 Add new water timely to improve water quality;
(5) Timely fishing listing.
Appropriate areas: It is appropriate to promote farming throughout the country.
The Catalogue of Feed Ingredients contains 117 natural plant extracts, such as anise oil, basil oil, cinnamon oil, clove bud oil, orange oil, lost essential oil, oregano oil, and thyme essential oil.
Black tail near red? Healthy breeding techniques
Technical Overview: