Economy of Nigeria of 5%. By 2012, expenditures stood at $31.61 billion, while revenues was $54.48 billion. Nigeria ranks sixth worldwide and first in Africa in farm output. The sector accounts for about 18% of GDP and almost one-third of employment. Nigeria has 19 million head of cattle, the largest in Africa. Though Nigeria is no longer a major exporter, due to local consumer boom, it is still a major producer of many agricultural products, including: cocoa, groundnuts (peanuts), rubber, and palm oil. Cocoa production, mostly from obsolete varieties and overage trees has increased from around 180,000 tons annually to 350,000 tons. Major
Rendering (animal products) separates the fat from the water. The solids may be used in food products, pet foods, etc., depending on the original materials. The separated fat may be used in food products, or if in surplus, may be diverted to soap making operations. Most edible rendering is done by meat packing or processing companies. One edible product is greaves, which is the unmeltable residue left after animal fat has been rendered. An alternative process cooks slaughterhouse offal to produce a thick, lumpy "stew" for the pet food industry, which uses it principally in tinned cat and dog foods. Such plants are