The features of Bovidae family are as follows:
1)They are cloven hoofed i.e their toes are split into two.
2) Bovids are ruminant and have four chambered stomach.
3)The males of Bovidae family possess horns and in many species females also have horns.
4)They have unbranched horns.
No, all the members of family bovidae cannot be considered as cattles. Cattles are the animals which are domesticated for milk, meat and other purposes.The members of the sub family Bovinae are cattles such as cow, buffalo etc. Generally the member of genus Bos are considered as cattles.