Ovine pulmonary adenocarcinoma as an animal model for human lung cancer, because OPA is histologically similar to human adenocarcinoma in situ of the lung. Dolly the sheep, the first mammal successfully cloned from an adult somatic cell, was euthanized after it was confirmed that she had OPA. 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
Animal nutritionist Animal nutritionist An animal nutritionist is a person who specializes in animal nutrition, which is especially concerned with the dietary needs of animals in captivity: livestock, pets, and animals in wildlife rehabilitation facilities. The science of animal nutrition encompasses principles of chemistry (especially biochemistry), physics, mathematics, ethology (animal behavior). An animal nutrition in the food industry may also be concerned with economics and food processing. A Bachelor of Science in agricultural, biological or related life sciences is usually required. A typical course would study metabolism of proteins, carbohydrates, lipids, minerals, vitamins and water, and the relationship of these nutrients and