This report will examine the weight gain of cattle fed forage and pasture. Both beef productions have advantages and disadvantages, but what will cause the greatest weight gain? A feedlot is a type of managed animal feeding facility that is used to fatten livestock ready for slaughter. Feedlot Cattle typically spend 50 – 120 days in a feedlot, which is approximately 10-15% of their lifespan. Before cattle are placed into a feed lot, they are first weaned from their mother at the age of 8 months and fed on pasture until 12-13 months, then they are fed in batches until 18-24 months. Cattle are finished on feedlots to meet market demands sooner and because grazing may not be sufficient for cattle to develop consistent meat quality and quantity due to environmental factors such as drought. The advantages of batch fed cattle are the minimal land use required for large numbers of livestock which is a more economical way to produce beef. Cattle are also fattened earlier with better meat texture and more meat can be distributed for growing global demand. However, the disadvantages of batch feed production are greater: cattle are constantly exposed to sunlight, dust, confined spaces, feces, heat and disease. Cattle are not designed to consistently consume grain and must be given antibiotics for health problems. Batch-fed cattle have more marbled, tender, and tastier meat as a result of the grain-based diet. However, despite its flavor and texture, grain-fed beef contains higher levels of harmful fats, as well as growth hormones and antibiotics. Grass-fed cattle are healthier and happier because they are under less stress and grow in a more natural environment. Grass-fed cattle can roam freely and consume their natural diet and swallow there. Animal welfare of feedlot cattle is the main priority, legislation requires feedlot cattle to have a minimum of 9m2, however on-farm production generally provides 13-15m2 per cow benefiting animal health. This space allows cattle to maintain the natural behavior required by the RSPCA. Feed cattle are checked daily, hospitalized if they feel unwell, are given diets specially developed by nutritionists and are protected from starvation, flood, fire and drought. A veterinarian is also employed to monitor the health and welfare of the animals. However, these actions aim to improve animal welfare, feedlot cattle are susceptible to disease due to constant contact with feces and other living conditions factors. Infections and diseases occur and cattle are given antibiotics, which means feedlot cattle have antibiotics in their beef.