Animal welfare is a multidisciplinary concept that recognizes animals as sentient beings capable of experiencing pain, fear, stress, pleasure, and comfort. Animal Welfare Science and Ethics examine how humans should treat animals while balancing social, economic, and environmental interests. Ethical arguments focus on the moral obligations owed to animals, economic arguments examine the costs and benefits of welfare-friendly practices, and ecological arguments evaluate the relationship between animal welfare and environmental sustainability. Intensive farming and companion animal management provide valuable case studies to understand these interconnected perspectives. Ethical arguments for animal welfare are based on the recognition that animals possess intrinsic value and deserve humane treatment irrespective of their utility to humans. Utilitarian philosophers such as Jeremy Bentham argued that the ability to suffer, rather than the ability to reason, is the basis for moral consideration. Modern welfare science also supports the view that animals experience complex emotions and therefore deserve protection from unnecessary suffering. Ethical frameworks such as deontology emphasize duties toward animals, while virtue ethics encourages compassion, kindness, and responsibility in human interactions with animals. The internationally recognized Five Freedoms provide a practical ethical framework for animal welfare. These include freedom from hunger and thirst, freedom from discomfort, freedom from pain, injury, and disease, freedom to express normal behaviour, and freedom from fear and distress. More recently, the Five Domains Model has expanded this approach by considering nutrition, environment, health, behaviour, and mental state, thereby emphasizing positive welfare experiences rather than merely preventing suffering. Intensive farming represents one of the most debated areas in animal welfare ethics. Modern livestock production often prioritizes efficiency and high productivity through large-scale confinement systems. Broiler chickens, laying hens, pigs, and dairy cattle may be raised in environments that restrict natural behaviour. Battery cages for hens, gestation crates for sows, and overcrowded poultry houses have raised ethical concerns because animals