रुदन्त्यश्रुमुखा गावो न हृष्यन्त्यृषभा व्रजे ॥१९॥
na pibanti stanaá¹ vatsÄ
na duhyanti ca mÄtaraḥ
rudanty aÅ›ru-mukhÄ gÄvo
na hṛṣyanty ṛṣabhÄ vraje
The calves do not drink milk and the cows do not give milk. The cows wail with tearful faces and the bulls do not enjoy the fields.
Na duhyanti as a reflexive verb (the cows do not milk themselves) is poetic license. It means that the cows do not give milk.
