Kautilya's Arthashastra 3.6.2

3.6.2

kāṇalaṅgās teṣāṃ madhyamāṃśaḥ, bhinnavarṇāḥ kaniṣṭhāṃśaḥ //

GOATS shall be the special shares of the eldest of sons, born of the same mother, among, Bráhmans; horses among Kshatriyas; cows among Vaisyas; and sheep among Súdras. The blind of the same animals shall be the special shares to the middle-most sons; species of variegated colour of the same animals shall be the special shares to the youngest of sons. In the absence of quadruped, the eldest shall take an additional share of the whole property excepting precious stones; for by this act alone, he will be bound in his duty to his ancestors.