4 results about "AI - Artificial insemination" patented technology

This invention discloses a method for large-scale breeding of all-male salmon and trout, belonging to the field of fish sex regulation breeding technology. The method includes: collecting fertilized eggs from different families of the same species of salmon and trout, artificially incubating them to obtain fry, and inducing sex reversal in the fry by using 17β-estradiol when they begin feeding; subsequently, raising the fry to sexual maturity, selecting individuals with a female phenotype, and then using sdY as a sex identification gene, selecting pseudo-females with genotype XY by quantitative real-time PCR; pairing the sexually mature pseudo-females with genotype XY with normal males with genotype XY, and obtaining super-males with genotype YY through artificial insemination; pairing the sexually mature super-males with females with genotype XX, and producing all-male salmon and trout with genotype XY on a large scale through artificial insemination. This invention overcomes the problem that existing technologies cannot achieve large-scale breeding of all-male salmon and trout.

The utility model relates to an aquatic fry artificial insemination device, aims at solving the current multiple needle tube placement is more disorderly technical problem, including bottom plate, placing plate and needle tube, bottom plate both sides are respectively fixed with mounting panel, is equipped with mounting hole on mounting panel, placing plate is arranged in bottom plate top side, a plurality of needle tubes are arranged on placing plate in proper order, the needle tube is positioned on placing plate through support structure and clamping structure, the support structure includes bottom block A and support ring, bottom block A is fixed in placing plate top side, support ring is fixed in bottom block A top -end, support ring and needle tube embedded support cooperation, clamping structure includes bottom block B and plastic snap ring, bottom block B is fixed in placing plate top side, plastic snap ring is fixed in bottom block B top -end, plastic snap ring and needle tube embedded joint cooperation, the utility model has the advantage that the needle tube is positioned in placing plate conveniently and quickly, is convenient for taking and keeps placing plate stable simultaneously.

To allow a mechanism for imparting an external stimulus to be installed so as to enable high-sensitivity measurement of structural and electromagnetic changes of a cell in response to the external stimulus using an NV center.SOLUTION: A sample measurement device provided herein has an environmental control mechanism for changing the state of a sample by imparting an external stimulus to the sample.SELECTED DRAWING: Figure 3

A device for supporting insemination that includes an elongated tubular body, the body has a proximal portion, a middle portion, and a distal portion, the proximal portion is of an oval shape, the middle portion is of a narrow tubular shape, and the distal portion is configured as a hub to sealably receive a tip of a syringe. The body further has a hollow central channel that extends throughout the length of the elongated tubular body.