Livestock production systems can be defined based on feed sources such as meadow, mixed land, plain. As of 2010, 30% of the world's ice-free and water-free areas are used for livestock production, with approximately 1.3 billion employees in this sector. From the 1960s to the beginning of the 21st century, the volume of livestock production increased dramatically, especially in terms of the amount of beef, pork, chicken and carcass, the production volume increased nearly tenfold. Non meat animals such as cattle and laying hens also showed a significant increase in yield. By 2050 it is expected that the world population of cattle, sheep and goats will continue to increase substantially. Aquaculture or fishery is one of the fastest growing food production sectors with an average increase of nine. Percentage between 1975 and 2007
An intensive livestock industry or industrial livestock industry, also known as factory agriculture, is a production method for farm animals to maximize production while minimizing production costs. Intensive agriculture refers to livestock industry, feeding food and poultry and fish is more dense than other forms of livestock industry - this is a typical way of agribusiness in industrial agriculture. The main products of the industry are meat, milk and eggs for human consumption. There are some problems as to whether factory agriculture is sustainable or ethical.
Agriculture is the process of producing food, feed products, fibers, and other desirable products by cultivating specific plants and rearing livestock (livestock). Agriculture is also known as "agriculture". It is said that scientists, inventors, and others who are focused on improving agricultural methods and tools are also engaged in agriculture. A third of the world's population is working in agriculture, but it is only 3% of the world's GDP. Agriculture is science and technology that produces and uses plants for the regeneration of food, fuel, fibers and land. Agriculture includes the fields of plant genetics, plant physiology, meteorology and soil science. Agriculture is the application of science. Today's agronomists are addressing a number of issues such as food production, healthy food production, management of the impact on the environment of agriculture, extraction of energy from plants.