5 results about "Scophthalmus" patented technology

The invention relates to an SNP (Single Nucleotide Polymorphism) molecular marker associated with the fatness of turbots fed with fermented soybean meal and application of the SNP molecular marker, and belongs to the technical field of molecular markers. The SNP molecular marker obviously associated with the fatness character is obtained by analyzing the fatness character of the turbots through genome-wide association analysis and comprises at least one of six SNP loci; the scophthalmus maximus molecular marker can be applied to scophthalmus maximus molecular assisted breeding, screening is conducted on the genome level through the breeding method, the breeding period can be greatly shortened, dependence on phenotypic characters is reduced, the selective breeding efficiency is improved, and the scophthalmus maximus molecular marker has good application prospects.

The present application belongs to the field of artificial breeding of Scophthalmus maximus, in particular to a separating device for Scophthalmus maximus production, which comprises a cylinder, a support column with an installation slot at the top end fixed in the middle of the inside of the cylinder, a rotating drive mechanism installed in the inside of the installation slot, an output shaft of the rotating drive mechanism connected with a rotating disc rotatingly connected at the top end of the support column, four electrically energized fast separating Scophthalmus maximus racks evenly arranged at the edge of the rotating disc, and four Scophthalmus maximus racks corresponding to the feeding position, the cleaning position, the egg collecting position and the discharging position respectively. The rotating drive mechanism drives the rotating disc and the Scophthalmus maximus racks thereon to adjust the position, so as to switch the position of Scophthalmus maximus in the Scophthalmus maximus racks at the feeding position, the cleaning position, the egg collecting position and the discharging position, and the device integrates the feeding, cleaning, egg collecting and discharging of Scophthalmus maximus, has high egg collecting efficiency of Scophthalmus maximus, low labor intensity and uniform mechanical egg collecting force with small damage to the eggs.

The invention provides a scophthalmus maximus seedling stage feeding method capable of improving disease resistance, which is mainly characterized in that the feeding method comprises the step of feeding 10-20 days of beta-glucan to 1-month-old and 3-month-old young scophthalmus maximus respectively. According to the scophthalmus maximus seedling stage feeding method capable of improving the disease resistance, through short-term feed adding and mixing feeding and induction of scophthalmus maximus juvenile fish training immune activation, the use cost is effectively reduced, meanwhile, the disease resistance of scophthalmus maximus from the seedling stage to the culture stage is enhanced, and the scophthalmus maximus seedling stage feeding method is expected to be matched with vaccination to improve the disease resistance of the scophthalmus maximus in the whole culture period; the method has a good application prospect in the fields of animal feed addition and disease immune prevention and control.

This invention discloses a SNP molecular marker for resistance to Edwardsiella tarda in turbot and its application, belonging to the fields of molecular breeding and biotechnology. The nucleotide sequence of the SNP molecular marker is shown in SEQ ID No. 1, and the polymorphic site of the SNP molecular marker is A / C. This invention also provides the application of the SNP molecular marker in screening turbot with resistance to Edwardsiella tarda; turbot with the CC genotype are individuals with resistance to Edwardsiella tarda. Using the SNP molecular marker provided by this invention, DNA-level selection can be performed in the early stages of fish fry development, unaffected by environmental factors, significantly improving the accuracy and efficiency of breeding and shortening the breeding cycle. The molecular marker was significantly validated in an independent validation population through linear regression analysis, demonstrating stable and reliable genotype-phenotype association, excluding false positives, and showing good market application prospects.

The present application relates to the SNP molecular marker of Scophthalmus maximus fermented soybean meal feeding under the correlation of fatness and its application, belongs to the molecular marker technical field, the present application utilizes the whole genome correlation analysis to carry out the analysis to the fatness character of Scophthalmus maximus, obtains the SNP molecular marker of the significant correlation of fatness character, including at least one of 6 SNP sites, can be applied to the molecular assisted breeding of Scophthalmus maximus, through the screening of the breeding method disclosed in the present application in the genomic level, can greatly shorten the breeding cycle, reduce the dependence on the phenotype character, improve the selection breeding efficiency, and have good application prospect.