3 results about "Parasite Infections" patented technology

The invention belongs to the technical field of parasite sampling, particularly relates to an imported marine fish pathogenic parasite sampling and detecting device, and provides the following scheme aiming at the problems of low manual sampling efficiency, inaccurate positioning and easy sample damage in existing marine fish parasite quarantine. Comprising a sampling base, a movable supporting plate, a sampling area identification assembly, a sampling pipe and a negative pressure separation assembly. The sampling area identification assembly can losslessly and accurately position a suspected parasite infection area in a fish body. The sampling pipe is provided with an annular gas guide cavity and an annular liquid guide cavity, sterile gas and normal saline can be sprayed cooperatively, and minimally invasive and efficient stripping and recycling of insect bodies are achieved. The negative pressure separation assembly adopts a double-chamber design, a micro-filtration membrane is arranged in the negative pressure separation assembly, a sample can be shunted and independently treated in single operation, and a negative pressure liquid extraction pipe of the negative pressure separation assembly has an automatic valve function of negative pressure ventilation and normal pressure closing, so that subsequent in-situ fixation is facilitated. According to the invention, the whole process automation from precise minimally invasive sampling to automatic separation and fixation is realized.

Ectoplasmic parasite infections in fish farming can cause significant difficulties and problems for the aquaculture industry. This disclosure generally relates to the treatment or control of ectopic parasite infections (such as sea lice) in fish (such as salmonids) using specific dosage regimens of isoxazoline. Specifically, the dosage regimen comprises the active ingredient shown in structural formula (I): (S)-3-methyl-N-(2-oxo-2-(prop-2-yn-1-ylamino)ethyl)-5-(5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazol-3-yl)thiophene-2-carboxamide, including its salt, or N-oxide or solvate, at a dose of about 0.025 mg / kg / day to about 0.250 mg / kg / day, preferably about 0.025 mg / kg / day to about 0.125 mg / kg / day. Specifically, the dosage administration regimen includes oral administration for approximately 3 to approximately 10 consecutive days, preferably over a period of 7 consecutive days.

The application belongs to the technical field of disease prevention and treatment of aquaculture, and discloses an aquaculture insecticide based on artemisia, khaya and neem and a preparation method thereof. The aquaculture insecticide is composed of the following raw materials in percentage by weight: artemisia extract 5-10%, khaya extract 3-8%, neem extract 3-8%, emulsifier 1-5%, antioxidant 0.1-0.5%, solvent 20-30%, and the balance is purified water. The application takes three kinds of natural plant extracts, i.e. artemisia, khaya and neem, as core raw materials, realizes synergistic effect through scientific proportioning, and the insect repellent activity of artemisinin is complementary to the antifeedant and growth inhibiting activity of nimbicin and khayaketone, so that a variety of aquatic parasites such as trichodina, dactylogyrus, anchorhead and fish louse can be effectively prevented and treated, and the single or mixed parasite infection has a significant prevention and treatment effect, and the insecticidal rate can reach more than 90%. The raw materials are all natural plant extracts, can be naturally degraded, and have no drug residues. The preparation process is simple and suitable for large-scale production.