To produce higher-quality animal-derived foods more efficiently, various methods have been implemented:

Selective Breeding: This traditional method involves choosing animals with desirable traits for reproduction, leading to improved offspring over generations. Traits such as faster growth rates, higher milk yield, and better wool quality are targeted.

 Age-related changes in size (mixed-sex BW and front view photos) of University of Alberta Meat Control strains unselected since 1957 and 1978, and Ross 308 broilers (2005). Within each strain, images are of the same bird at 0, 28, and 56 d of age  https://www.ncbi.nlm.nih.gov/pmc/about/copyright/ Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4988556/figure/f1/

Genetic Engineering: Advances in biotechnology have enabled the modification of animal genomes to enhance specific traits. For example, genetically modified salmon grow faster than their non-GMO counterparts.

Improved Nutrition: Optimizing feed formulations to meet the specific nutritional needs of different livestock species enhances growth, productivity, and product quality. This includes the use of feed additives and supplements to promote health and efficiency.

Precision Farming: The use of technology to monitor and manage livestock environments more accurately helps improve productivity. This includes automated feeding systems, climate control, and health monitoring tools.