my dog nowadays gets very angry and even bites its home member sometimes when touched .it does not like to eat from the time its breeding time has been started

Who you callin a b!tch!>:-[Just kidding

cause she's a b!tch.

Cuz they are in heat and the term b*tch comes from a female dog while in heat. Think of it as PMS.

thats extremely wierd. maybe its because she wants to get her problem solved. try that and if you have any female dogs in the house aside from her thats another BIG reason why. girl dogs get very ....jealouse i guess u could say. and if theres another girl dog then they get pissy cuz they want to be the one "picked" and if theres another girl dog than that dogs ruining her chances to get some lovin...and if none of the above work try getting her fixed. if you let her stay mean like that for too long before getting her fixed she might stay that mean

just like a human woman when she starts her period her hormones are raging and they mess with her emotions

Dog's temperments do change, it is definatly hormonal. If a dog is that aggressive even during breeding. . . you do NOT want to breed that dog. You should have her spayed. There is more to breeding than just letting two dog hump and selling the pups. The parents should have great temperments, health and over all conformation. Bad genes should not be allowed to pass along.