Haley E Davis Keith E Belk
Animal Frontiers, Volume 8, Issue 3, 20 August 2018, Pages 23–29, https://doi.org/10.1093/af/vfy007
Published: 15 June 2018
The world population is continuing to grow and could reach as many as 12 billion people in this century, creating a necessity for more sustainable food production.
Livestock producers utilize production technologies, such as anabolic implants and beta-agonists, to improve sustainability and efficiency of meat production.
Use of growth promotants in livestock is controversial because several countries will not accept imported meat that is derived from animals that received them.
Trade barriers associated with use of growth-promoting technologies are widespread, and the countries involved in disputes regarding their use need to find common ground in order to provide high-quality dietary protein to a growing population.
Animal production generating meat, milk, leather, and wool accounts for more than 50% of the value of agricultural products in the United States (USDA-NIFA, 2018). Additionally, livestock products on a global level provide an estimated 13% of total energy and 28% of protein in diets consumed (USDA-NIFA, 2018). Latest population projections by the United Nations indicate that a current global population of 7.6 billion will increase by nearly one billion people in the next 12 yr (UN-ESA, 2017). By 2050, estimates suggest that we will reach a population of 9.8 billion people, and by the new millennia of 2100, we could reach up to an estimated 9.6 to 12.3 billion people (Figs. 1 and 2; Gerland et al., 2014; UN-ESA, 2017). As the global population continues to increase at an alarming rate, so does the necessity to feed more people with fewer resources. Livestock and meat production will be tasked with providing a substantial amount of nutrients and high-quality protein in the future to avoid a calorie deficit globally. For this reason, the livestock industry has relied heavily on technologies, such as anabolic implants and supplementation with beta-adrenergic receptor agonists to aid in increased production efficiencies (Stewart, 2013; Dilger, 2015)… READ MORE