The incubation period averages 8-12 hours, after which diarrhea and abdominal cramps begin. C. perfringens symptoms usually persist for one day. A severe complication, necrotic enteritis (also known as pig-bel syndrome), can develop if large numbers of bacteria are ingested.
Variable costing is a costing system under which those costs of production that vary with output are treated as product costs. This would usually include direct materials, direct labor and variable portion of manufacturing overhead. Fixed manufacturing cost is not treated as a product costs under variable costing.
Definition and explanation: Under absorption costing system, all costs of production (both variable and fixed) are treated as product costs. The unit product cost consists of direct materials, direct labor and both variable and fixed overhead. When absorption costing method is used a portion of fixed manufacturing overhead cost is allocated to each unit of product along with variable manufacturing cost.