Читать книгу Farm Animal Medicine and Surgery - Graham R Duncanson - Страница 157

True copper deficiency is very rare but secondary copper deficiency due to high levels of molybdenum or sulfur in the diet is common. The signs seen are multiple. Initially, black animals will take on a ginger colouring and the hair will rough, then erosions on the mouth and diarrhoea will occur, and eventually animals will die. Diagnosis can be confirmed on a heparinized blood sample. As copper is stored in the liver, low copper blood samples will only be seen in cases of severe deficiency. Liver samples give a more accurate picture. Treatment is with boluses containing copper oxide needles, which are licensed in the UK, or with copper injections, which are licensed in other parts of the world.