After making a meal at home, feeding the roti to the cow not only brings happiness and prosperity, but there is also the favor of Lakshmi Devi in the house. Therefore, the first bread should be fed to the cow and then offer to God later the family members should eat food.
It has been said in the scriptures that the virtue which is attained by serving the cow, never comes from anybody's service. Even if the cow is not served, the cow can be given bread every day. If the bread is given to the cow, never put ghee or oil on it. If possible, putting a hand on the cow and putting it on the head later, in this way it is you can get the blessings of the cow.
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