Ovine pulmonary adenocarcinoma Ovine pulmonary adenocarcinoma Ovine pulmonary adenocarcinoma (OPA), also known as ovine pulmonary adenomatosis, or jaagsiekte, is a chronic and contagious disease of the lungs of sheep and goats. OPA is caused by a retrovirus called jaagsiekte sheep retrovirus (JSRV). The disease has a long incubation period, and therefore signs usually occur in adult animals (over 2 years of age). Clinical signs resemble a non-specific progressive pneumonia, including poor body condition and, particularly after exercise, respiratory difficulty. Unless a concurrent lung infection is present, affected sheep continue to eat. The only sign specific to OPA is a watery nasal discharge, consisting
Animal Place Animal Place Animal Place, which was founded in 1989, is one of the oldest and largest sanctuaries for farmed animals in the United States. Nestled on 600-acres in Grass Valley, California, Animal Place provides refuge to hundreds of neglected farmed animals. In addition to permanent sanctuary, Animal Place’s Rescue Ranch is a 60-acre adoption center, placing needy farmed animals into permanent homes. Animal Place extends support to all life with a special emphasis on farmed animals. This is executed by providing permanent sanctuary, education, legislation and appropriate placement of needy animals. Animal Place (Grass Valley, CA) won first prize in