In vitro fertilization (IVF) in aquaculture facilitates the controlled breeding of fish species by fertilizing eggs and sperm outside the fish body. This technique is valuable for preserving endangered species, controlling specific traits, and ensuring genetic diversity within populations. IVF enables selective breeding, allowing only the healthiest and most resilient individuals to contribute to the gene pool. The process also helps overcome natural breeding challenges, such as seasonal breeding limitations or incompatible pairings. By controlling environmental conditions in vitro, scientists can increase the success rate of fertilization and promote the growth of healthy fish stocks. IVF has thus become a powerful tool in both conservation and commercial aquaculture.