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These insecticides are specific for insects , have very low mammalian toxicity , are nonpersistent in the environment , and cause death slowly . Youth participation is crucial both for young people to build the skills and connections they need for careers , personal life , and civic involvement , but also because youth are community assets . Feed ingredients ( bulk or packaged ingredients that are commonly used in feeds for ruminants such as cereals and cereal byproducts , oilseed meals , grain screenings ) ; and , Ruminant feeds ( bulk or packaged complete feeds , supplements and macro-premixes for cattle , sheep , goats , deer , elk , bison etc. ) ; formulations of ruminant feeds sampled were not intended to contain any animal protein products although formulations containing blood and milk products were acceptable .