why its better to burn alive “fake”(but alive!) chicken then “real” chicken?!
Because burning it doesn’t produce carcinogens—by authorial fiat. (I don’t think Dumbledore transfigured a chicken because burning it was more moral than burning a “real” chicken—just more convenient. It also might make for an interesting transfiguration experiment—if you turn paper into a chicken and burn the chicken, does the the burnt chicken turn back into paper? A whole sheet, or shredded? Burnt? What happens was never made clear, and Dumbledore used to experiment with Transfiguration, but doesn’t have as much time for that anymore.)
Because burning it doesn’t produce carcinogens—by authorial fiat. (I don’t think Dumbledore transfigured a chicken because burning it was more moral than burning a “real” chicken—just more convenient. It also might make for an interesting transfiguration experiment—if you turn paper into a chicken and burn the chicken, does the the burnt chicken turn back into paper? A whole sheet, or shredded? Burnt? What happens was never made clear, and Dumbledore used to experiment with Transfiguration, but doesn’t have as much time for that anymore.)