Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 5 · Omens
शकुनानि
भूमिं पादैर्विनिघ्नन्त्यो दीना भीता भयावहाः ।आर्द्राङ्ग्यो हृष्टरोमाश्च शृङ्गलग्नमृदः शुभाः ॥ २४ ॥
In the full Agni Purana this is chapter 232, verse 24.
Cows that strike the ground with their feet, gloomy and frightened, bring fear. Those with wet bodies, hair on end and soil stuck to their horns are good.
Simple meaning: Cows pawing the ground and frightened bring fear. Wet cows with soil on their horns are good.
महिष्यादिषु चाप्येतत्सर्वं वाच्यं विजानता ।
All this holds for buffaloes too. Someone else riding one's saddled horse is not good.
जलोपवेशनं नेष्टं भूमौ च परिवर्तनम् ।
A horse sitting in water, rolling on the ground or sleeping for no reason brings trouble.
यवमोदकयोर्द्वेषस्त्वकस्माच्च न शस्यते ।
A horse suddenly refusing barley and sweets, bleeding from the mouth, or trembling is a bad sign.