Methods and compositions for synchronizing the time of insemination in swine are described. More particularly, methods are described for synchronizing the time of insemination by administration of a composition comprising a hormone, wherein the swine is inseminated only one time after administration of the hormone, and wherein there is no heat detection.

The present artificial insemination instrument may include a single use, hollow, elongate, metal pipette and a single disposable syringe that is not toxic to bovine sperm. The apparatus is used with any type of diluent that is not toxic to bovine sperm. In various embodiments, a technician may use non-sorted reduced sperm count semen straws from a bull stud, cut an unsorted semen straw into several pieces to use one piece at a time per cow, thaw one straw and mix the non-sorted semen with diluent, or use reduced sperm count semen straws filled with sex sorted semen by the manufacturer. A procedure is disclosed to use the artificial insemination instrument, reduced sperm count semen from any of the aforementioned sources, a non-toxic syringe, and a diluent to achieve conception rates at least as good as conventional prior art device and procedure conception rates.

The present artificial insemination instrument may include a single use, hollow, elongate, metal pipette and a single disposable syringe that is not toxic to bovine sperm. The apparatus is used with any type of diluent that is not toxic to bovine sperm. In various embodiments, a technician may use non-sorted reduced sperm count semen straws from a bull stud, cut an unsorted semen straw into several pieces to use one piece at a time per cow, thaw one straw and mix the non-sorted semen with diluent, or use reduced sperm count semen straws filled with sex sorted semen by the manufacturer. A procedure is disclosed to use the artificial insemination instrument, reduced sperm count semen from any of the aforementioned sources, a non-toxic syringe, and a diluent to achieve conception rates at least as good as conventional prior art device and procedure conception rates.

A first system for determining the relative health of a chick having a first moving platform to support a chick, a first image capture device, a first database having a library of digital images relating to healthy and unhealthy chicks and a computer processor in communication with the image capture device and database. A second system for determining the gender of a chick includes a second moving platform, a second image capture device, stimuli directed at the chick to cause the chick to open its wings. The second system also includes a second database having wing patterns of male and female chicks of the breed of the chick on the second moving platform and a second computer processor in communication with the second image capture device and the second database.

A first system for determining the relative health of a chick having a first moving platform to support a chick, a first image capture device, a first database having a library of digital images relating to healthy and unhealthy chicks and a computer processor in communication with the image capture device and database. A second system for determining the gender of a chick includes a second moving platform, a second image capture device, stimuli directed at the chick to cause the chick to open its wings. The second system also includes a second database having wing patterns of male and female chicks of the breed of the chick on the second moving platform and a second computer processor in communication with the second image capture device and the second database.

The invention relates to a storage receptacle (1) with a longitudinal opening (5) through which straws (2) for packing liquid-based substance are passed in a predetermined orientation of the straws, a housing (3) provided for the straws and configured to be inserted slidably in a cover (4) of the receptacle, the latter having an open configuration, in which the housing is partially inserted in the cover and the opening is free for the passage of the straws, and a closure configuration, in which the housing is inserted in the cover and the opening is closed by the cover in order to prohibit the passage of the straws. The housing has a parallelepipedal shape, a first front wall in which the opening is formed, a first bottom wall, two first longitudinal wails extending parallel to the opening, and two first side walls which each have two diagonals of a length less than or equal to the length of the straws.

A first system for determining the relative health of a chick having a first moving platform to support a chick, a first image capture device, a first database having a library of digital images relating to healthy and unhealthy chicks and a computer processor in communication with the image capture device and database. A second system for determining the gender of a chick in eludes a second moving platform, a second image capture device, stimuli directed at the chick to cause the chick to open its wings. The second system also includes a second database having wing patterns of male and female chicks of the breed of the chick on the second moving platform and a second computer processor in communication with the second image capture device and the second database.

A first system for determining the relative health of a chick having a first moving platform to support a chick, a first image capture device, a first database having a library of digital images relating to healthy and unhealthy chicks and a computer processor in communication with the image capture device and database. A second system for determining the gender of a chick in eludes a second moving platform, a second image capture device, stimuli directed at the chick to cause the chick to open its wings. The second system also includes a second database having wing patterns of male and female chicks of the breed of the chick on the second moving platform and a second computer processor in communication with the second image capture device and the second database.

Provided are a method for producing a spermatogenic stem cell-like cell from a primordial germ cell-like cell derived from an isolated pluripotent stem cell in vitro, the method including (1) a step of coculturing a primordial germ cell-like cell with a gonad somatic cell in suspension to give reconstituted testis, and (2) a step of culturing the obtained reconstituted testis at gas/liquid interface to induce a DDX4-positive and PLZF-positive cell in the reconstituted testis; and
a method for producing a GSC-like cell, including dissociating a spermatogenic stem cell-like cell obtained by the method from the reconstituted testis, and culturing the cell under conditions that can induce a germline stem cell from the spermatogenic stem cell.

A first amount of sperm of a first animal and a second amount of sperm of a second animal of the same species, the first amount of sperm and the second amount of sperm sex-selected sperm of the same sex, useful in the in-vivo or in-vitro fertilization of an egg of a female animal of the same species of animal for the production of sex-selected embryos and sex-selected offspring.