Degenerative Changes in the Cerebral Cortex in Swayback Disease Lambs
نویسندگان
چکیده
The associationof copper deficinecy with the pathologic changes in swayback disease has been established by several people. The low copper levels in the blood is either as a result of low copper content in pastures which the animals graze or due to interference with copper metabolism by some elements (molybdenum, sulphur and iron) [Mc Dowell et al., 1993]. In Trinidad swayback is a fairly common disease. Swayback disease in Trinidad is most likely as a result of low levels of copper in the pastures since copper levels of grasses in Trinidad have been found to be extremely low [Youssef and Brathwaite, 1987]. Some swayback cases develop in utero so that the animals die soon after birth. In other cases, the disease develops within the first six months of life. In Trinidad both types of swayback disease occurs.
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