Society says undercover investigation found animal psychosis , self-mutilation . Center denies allegations , says it properly housed and cared for the animals . Agriculture secretary says he 'll order investigation of facility 's animal welfare practices . Comment:
Society says undercover investigation found animal psychosis , self-mutilation . Center denies allegations , says it properly housed and cared for the animals . Agriculture secretary says he 'll order investigation of facility 's animal welfare practices . New Iberia Research Center in Louisiana houses more than 6,500 primates .