male more boisterous the hormones not only control their physical state but also play a huge role in their mental makeup but that doesnt mean a bitch cannot be nasty when in heat bitches too get irritable because of the hormonal changes in their body he adds a german shepherd with its ownera german shepherd with its ownerbigger dogs are often branded as aggressive because of their sizethese are not easy breeds to keep and maintain says dr abhishek gupta a veterinary surgeon such dogs need exercise they need playtime bonding with their owners and socialisation with outsiders so people keeping them need to have that in mind you cant discriminate between breeds and assume that these dogs are aggressive and not friendly i have worked with such breeds enough to know that most of them are gentle especially the females he addsshirin merchant a canine behaviourist and trainer adds rottweiler pitbull doberman german shepherd were bred as working dogs these are dogs that were bred for a certain purpose and some of that purpose includes guarding and protection so innately they can be predisposed to that but that doesnt mean that all of them turn out to be biting dogs most big breed dogs like pitbull cane corso bully kutta rottweiler are genetically meant to do specific activities for example pitbulls were used in bloodsports like bear baiting and bull baiting so their temperament is by default aggressive adds sahadev yadav animal behaviourist and professional dog trainerbigger dogs tend to do more damage because of their size and hence branded aggressive says kamna pandey a sitting member of the society for prevention of cruelty towards animals spca and an animal activist and communicator basically they have bigger and more powerful jaws which inflict a deeper wound if they attack also because of their sheer size it becomes difficult to control them if an attack occurs bigger may not always be better especially for firsttime dog owners says rk pandey a retired policeman who trained dogs for the up police they are hard to control even when playful because of their strength so only an experienced person should keep big breedsbcclcertified canine trainers and behaviourists suggest some dos and donts for pet parents of big dogsdoslearn about the breedtrain yourselftrain the dogmake the dog understand that you are the leader of the pack get the dog vaccinatedgive it enough time and exercisesocialise the dog towards other animals and peopleif the dog is showing aggression give a command in a firm but calm voiceif the dogs are fighting among themselves pour water over themset boundaries of behaviour for your dogdontsdont get a breed you cant handledont keep the dog confined or chained for a very long timedont provoke them children pulling their tails or earsdont deviate from their daily routine unless absolutely necessaryavoid sudden movements or loud noises around themaggressive behaviour leads to aggression in dogs avoid thatdont try to pull apart dogs that are fightingdont encourage bad behaviour even when