Chicken has been domesticated and consumed as food for thousands of years. There are many varieties including free-range chicken, organic chicken, and conventional chicken, and the differences between them relate to how they are fed and raised. Free-range chickens, as the term implies, are allowed to roam freely in the pastures. On the other hand, conventional chickens, controversially, are kept in cages and not allowed to move freely. Conventionally raised birds are injected with hormones to speed growth and are sometimes kept in unhygienic and unhealthy conditions meaning they are also often treated with antibiotics.
The organic variety is the most expensive because they must have access to the outdoors, are only allowed to eat organically grown food (with no pesticides), and they may not be given antibiotics. They are also supposed to be kept in healthy and clean conditions and allowed to grow naturally.
1/2 KG, 1 KG, 1.5 KG, 2 KG