Pig Weaner Crumbles have a size of 2-3 mm, which are fed to pigs until they attain the age of 56 days, or a body weight of 12-14 kgs. The nourishment contained in the feed provides a good rate of initial growth, thereby acting as a catalyst for subsequent growth and FCR. Ranging in the size of 2-3 mm, the pig grower crumbles are intended for pigs between 57-120 days of age, or until the achievement of 35-40 kgs of body weight. The fattening pellets come in the size of 4 mm, and act as the entire nourishment for pigs having the age of 121-180 days or until gaining 50-60 kgs of body weight. Pig farming is the raising and breeding of domestic pigs. It is a branch of animal husbandry. Pigs are raised principally as food (e.g. pork, bacon, gammon) and sometimes for their skin. Pigs (hogs in the US) can be farmed as intensive commercial units, commerial free range enterprises, small-scale farming being allowed to wander around a village, or tethered in a simple shelter. Today, pig farms are much larger than in the past, with most large-scale farms housing 5,000 or more pigs in climate-controlled buildings. With 100 million pigs slaughtered each year, these efficiencies deliver affordable meat for consumers and larger profits for producers. Individual farm management focuses on housing facilities, feeding and ventilation systems, temperature and environmental controls and the economic viability of their operations. Just as producers have to determine profit margins and types of facilities and equipment for their farm, they must also find the practices that best fit their specific situation. Some procedures and treatments are known to stress the animals and producers should consider the animals' welfare, health and management in correspondence with accepted husbandry skills. Other Products