Dear Student,
a. Dogs, sheep and goats were among the first animals to be domesticated.
b. During Vedic period, many animals were domesticated like cow, sheep, goat. They were reared for their wool, milk.
c. Along with that horses were used in large numbers, they were used for mobility of goods and men.
d. People over a period of time realised the importance of these animals and started domesticating them.
e. It is believed that humans started keeping dogs as they found them adorable.
f. Further, humans started keeping animals for their use, reared and cared for them and thus started domesticating them.
Regards