Unfortunately, our beasts are inefficient animals, and they turn two-thirds of that into feces and heat, so we've lost those two, and we've only kept this one in meat and dairy products.
Por desgracia, nuestros animales son ineficientes; convierten dos terceras partes en excremento y calor, de modo que se han perdido dos y solo nos queda esta en carne y lácteos.