A biodegradable duck nesting system includes a first member having a hollow interior, and a second member disposed in the first member. The system includes a biodegradable hollow enclosure having an opening sized to allow a duck to enter and/or exit the enclosure. The system also includes a predator prevention member located below the enclosure for preventing predators from contacting the enclosure.

A transgenic chicken comprising an inactivated heavy immunoglobulin gene and/or inactivated light chain immunoglobulin gene is provided, as well as cells and targeting vectors for making the same.

A tracking system includes a standardized transmitter and a customizable carrier for the transmitter. The customizable carrier may have a configuration that enables it to be attached to and carried by a subject for long durations of time, while enabling the standardized transmitter to be used with a variety of different types or configurations of subjects. Methods of assembling tracking systems and methods of tracking subjects are also disclosed.

The present invention relates to processes for transfecting cells. In particular, the present invention relates to processes for using CRISPR to incorporate a polynucleotide into the genome of an avian primordial germ cell (PGC).

A display apparatus includes a transparent electronic display such as a non-backlit LCD screen, a display area disposed behind the transparent electronic display, and a light source for illuminating the display area. When the light source is activated, the pixels of the LCD screen, and objects behind the screen, become visible. Various examples of the display apparatus include additional enhancements to the visual image and/or functionality. These enhancements include additional monitors for coordinated displays, user-controlled turntables with coordinated informational displays, parallax compensation, RFID sensors for identifying objects to be displayed, and switchable liquid crystal films and/or polarized mirror coatings to further control revealing and concealing of objects behind the screen. Some examples of the display apparatus may include an animal habitat. The animal habitat may be selectively revealed or concealed. The display apparatus may incorporate screen displays with animal movements for unique visual effects.

A transgenic animal is provided. In certain embodiments, the transgenic animal comprises a genome comprising: an immunoglobulin light chain locus comprising: a) a functional immunoglobulin light chain gene comprising a transcribed variable region encoding: i. light chain CDR1, CDR2 and CDR3 regions that are composed of 2 to 5 different amino acids; and ii. a light chain framework; and, operably linked to the functional immunoglobulin light chain gene: b) a plurality of pseudogene light chain variable regions each encoding: i. light chain CDR1, CDR2 and CDR3 regions that are composed of the same 2 to 5 different amino acids as the CDRs of the functional gene; and ii. a light chain framework that is identical in amino acid sequence to the light chain framework of the transcribed variable region.

The present invention relates to a gallinaceous bird embryo into which human neuroblastoma cells have been grafted at the level of the neural crests. The invention also relates to a process for preparing such a gallinaceous bird embryo, and to a process for screening for therapeutic molecules intended for the treatment of a neuroblastoma tumor based on the use of this gallinaceous bird embryo.

The present invention relates to methods for transfecting cells. In particular, the present invention relates to methods of transfecting primordial germ cells in avians, and to methods of breeding avians with modified traits.

A sustained culture of isolated avian gonocytes is provided, as well as a method of making and using the same. A chimeric avian containing an isolated gonocyte and a transgenic avian produced using the chimeric avian are also provided. The cell and method may be employed to make, among other things, transgenic avian that produce a heterologous protein, e.g., a therapeutic protein.

A display apparatus includes a transparent electronic display such as a non-backlit LCD screen, a display area disposed behind the transparent electronic display, and a light source for illuminating the display area. When the light source is activated, the pixels of the LCD screen, and objects behind the screen, become visible. Various examples of the display apparatus include additional enhancements to the visual image and/or functionality. These enhancements include additional monitors for coordinated displays, user-controlled turntables with coordinated informational displays, parallax compensation, RFID sensors for identifying objects to be displayed, and switchable liquid crystal films and/or polarized mirror coatings to further control revealing and concealing of objects behind the screen. Some examples of the display apparatus may include an animal habitat. The animal habitat may be selectively revealed or concealed. The display apparatus may incorporate screen displays with animal movements for unique visual effects.