4 results about "Pinctada margaritifera" patented technology

The utility model relates to the technical field of aquaculture, and discloses a pinctada fucata recirculating aquaculture device. The recirculating aquaculture device comprises a pool body; the base plate is located at the top of the pond body and used for driving the breeding cage to automatically move to the outside of the pond body; the two sides of the outer wall of the pond body are connected with a supporting frame through fasteners, the interior of the supporting frame is connected with the two ends of a threaded column through a rotating shaft, the threaded column is connected with one side of an air cylinder through threads, and the top of the air cylinder is connected with a base plate through fasteners, so that the bottom of a breeding cage is cushioned at the top of a collecting tank; the rope knots at the bottoms of the breeding cages are opened, the pinctada fucata in the breeding cages are shaken off into the collecting grooves below, water drips into the grooves through the through holes, and the pinctada fucata slides into the hoppers through the collecting grooves, so that feeding of the breeding cages and the pinctada fucata can be completed, and workers do not need to manually carry the support for feeding; time and labor are saved, and the working efficiency is effectively improved.

The application provides a SNP molecular marker related to low-temperature resistance of Pinctada martensii and application thereof, and belongs to the technical field of aquatic genetic breeding. The molecular marker comprises one or more of SNP351, SNP352, SNP362, SNP365, SNP367, SNP378, SNP396, SNP456, SNP718, SNP823 and SNP831. The molecular marker can be used for genotype identification of parent shellfish before seed breeding, and the low-temperature resistance of offspring population can be improved by screening parent shellfish with multiple advantageous genotypes.

This invention discloses a molecular marker array, microarray, and its applications for Pinctada martensii. The molecular marker array comprises 31,053 molecular markers, the physical locations of which were determined by sequence alignment based on the Pinctada martensii reference genome CNP0002248. The SNP sites in the Pinctada martensii molecular marker array of this invention are highly representative, polymorphic, and versatile. Furthermore, it covers sites and functional sites significantly associated with traits such as shell length, shell width, shell height, shell weight, shell color, pearl color, and nacre thickness. It can be used for gene identification and functional analysis of important economic traits in Pinctada martensii, research on population genetic diversity, germplasm resource conservation, genetic improvement, and marker-assisted breeding, to cultivate new varieties with excellent economic traits and promote the healthy and sustainable development of the marine pearl industry.

This invention discloses an antioxidant active peptide from the mucus of the Hepu pearl oyster, its preparation, and its application. The amino acid sequence of the antioxidant active peptide from the Hepu pearl oyster mucus is Arg-Trp-Ala-Ser-Trp. The preparation method of the active peptide includes collecting pearl oysters, collecting mucus, collecting supernatant, identifying the supernatant, and screening and identifying the active peptide. The antioxidant active peptide obtained from the mucus of the Hepu pearl oyster exhibits high activity, effectively scavenging free radicals and reducing H2O2 damage to skin fibroblasts; it can also promote skin wound healing. The application of this antioxidant active peptide in drugs or devices for reducing cellular oxidative stress shows good promise.