The rising incidence of weather extremes will have increasingly negative impacts on crop and livestock productivity because critical thresholds are already being exceeded. (dotearth.blogs.nytimes.com)
Broadly defined, the animal health industry includes all products and services, other than livestock feed and pet food, that promote livestock productivity and health and companion animal health. (zoetis.com)
A portion of this controversy and the lack of scientific support for the claims made for his method on livestock productivity and grassland ecosystem function may be found in peer - reviewed papers (e.g. Briske et al. 2008). (realclimate.org)