Department of Animal Science


Date of this Version



Jan. 2019, Vol. 9, No. 1


© Gaughan, Sejian, Mader, and Dunshed.

Open access

doi: 10.1093/af/vfy029


  • Growing populations and reduced access to arable land mean that animal production systems will either need to intensify and/or produce more from a reducing land and other resource base.

  • Variable and unpredictable environmental conditions mean that animal production faces numerous challenges. In add- ition to climate, these challenges include increased disease risk, increased nutritional deficiencies, and lack of capital to support diversification.

  • Predicted changes in climate will impose selection pressures on traits important for biological fitness (and production).

  • Genetic adaptation is important for the future of livestock systems. Animal adaptation involves trade-offs, which must be considered when selecting animals for use in breeding programs.