While performing rituals named 'Munja' in Brahmin community, why do the Brahmins cut off the wheat doughed cow?

Swami replied: A model of animal is cut to show that you should cut your animal nature for your progress here as well as there. Even though cow, goat etc., are very soft animals, every animal is basically made of ignorance. You should cut your ignorance but not the actual animal as the Veda says (Manyuh pashuh). This means that you should cut your ignorance by knowledge and without that mere softness and submissiveness of your nature has no use in spiritual development.