Beyond commercial farming, genetically modified pigs are increasingly used as "models" for human health:

Recent scientific advancements in pig breeding and genetics have introduced various methods to modify or control pig sexual development, primarily for animal welfare and industrial efficiency. Development of "Testicle-Free" Pigs

A significant development in animal welfare is the creation of genetically modified pigs that .

: Researchers in Germany have used CRISPR/Cas9 technology to breed pigs that do not develop testicles. This approach eliminates the need for painful surgical castration, providing a more humane alternative for the pork industry.

: Traditionally, male piglets are castrated shortly after birth to prevent "boar taint," an unpleasant smell and taste in the meat that develops as boars reach puberty.

: By editing specific genes like KISS1 , which is crucial for sexual development, scientists have produced pigs that remain in a "pre-pubertal" state with infantile reproductive tracts. Pigs in Biomedical Research

CRISPR/Cas9-editing of KISS1 to generate pigs with ... - PMC