Energy in the depositional environment: The first key to the identification of sedimentary facies and environments is the relationship between energy and clast size. Generally, the higher the energy (that is, the faster the wind or water is moving) the larger the grains that can be kept in suspension.
pig porphyria. an erythropoietic porphyria, similar to bovine congenital erythropoietic porphoryia, but inherited as a dominant trait. Discoloration of the teeth, bones and tissues occurs, but not of the urine, except in severely affected cases.Photosensitization is not a feature. The enzymatic defect is unknown.nherited as an autosomal dominant trait; affected cats have discolored teeth, urine and tissues, severe anemia and photosensitivity associated with a deficiency of uroporphyrinogen III cosynthetase. inherited porphyria. the disease is inherited in cattle and swine and is similar to erythropoietic porphyria of humans.
In all, there are seven types of porphyria of which four are acute porphyrias, the others affect the skin predominantly. Porphyria cutanea tarda. The commonest form of porphyria in Australia and elsewhere in the world is called porphyria cutanea tarda or PCT.cute intermittent porphyria. The next most common form of porphyria is acute intermittent porphyria or AIP. AIP causes only neurological symptoms and does not affect the skin. AIP is inherited but may appear to skip generations as many people who inherit the disease never get any symptoms.