athāha surabhiḥ kṛṣṇam
abhivandya manasvinī
sva-santānair upāmantrya
gopa-rūpiṇam īśvaram
atha -- then; aha -- spoke; surabhih -- the mother of the cows, Surabhi; krishnam -- to Krishna; abhivandya -- offering respects; manasvini -- peaceful in mind; sva-santanaih -- together with her progeny, the cows; upamantrya -- begging for His attention; gopa-rupinam -- appearing as a cowherd boy; isvaram -- the Supreme Lord.
The statement here that the heavenly cow Surabhi approached Lord Krishna along with her progeny (sva-santanaih) is a reference to the transcendental cows who play with Lord Krishna in Vrindavana. Although Lord Krishna's cows are transcendental, the heavenly cow Surabhi affectionately saw them, as indeed Lord Krishna Himself did, as related to her. Since Lord Krishna was appearing in the form of a cowherd boy, the whole situation was quite congenial, and Surabhi took the opportunity to offer the following prayers.