This prayer addressed to Dathathreya, Gives victory , profit , fame
and desire, Happy life and salvation to the one To the one who recites
it regularly with faith.
Conclusion: kāma-dhenu that fulfill all desires, so does praying Dathathreya, hence cow.
2. four dogs
Symbolically, dogs represent loyalty, obedience, devotion, and the Vedas. Bhairava, a fierce form of Shiva, who is worshipped in Tantra, has a dog as his vehicle. Refer
Shvan, a Sanskrit word meaning a dog, finds repeated references in Vedic and later Hindu mythologies
The expression "Vedic" is derived from the Sanskrit word veda, which means knowledge, wisdom or revelation.
Karpoora kanthi dehaya, Brhma moorthy daraya cha, Veda sasthra
parignaya, Dathathreya namosthuthe.
My salutations to Dathathreya, Who has a colour of burning camphor,
Who takes up the role of the creator, And who is master of the holy
Conclusion: Dathathreya a god in the form of a combination of the great trinity consisting of Brahma, Vishnu and Shiva, Brahma created Vedas, Dathathreya master of all 4 vedas & dog symbolic of Vedas, hence four dogs.
Like any library, Hinduism Stack Exchange shares great information, but does not offer personalized advice, and does not take the place of seeking such advice from any Acharya, Pundit, astrologer, Guru or other trustworthy Counselor.