Experienced and professional animal trainer provide their insights in answering this question :
A. Ignore your dog’s barking for as long as it takes him to stop. This means don’t give him any attention at all while he’s barking. Your attention only rewards him for being noisy. Don’t talk to him, don’t touch him, and don’t even look at him. When he finally quiets down, even to take a breath, reward him with a treat. To be successful with this method, you must wait as long as it takes for him to stop barking. If he barks for an hour and you finally get so frustrated that you yell at him to be quiet, the next time he’ll probably bark for an hour and a half. Dogs learns that if they bark long enough you’ll give them attention.

Teach your dog the ‘quiet’ command. It may sound nonsensical, but the first step is to teach your dog to bark on command. Give your dog the command to “speak,” wait for him to bark two or three times, and then stick a tasty treat in front of his nose. When he stops barking to sniff the treat, praise him and give him the treat. Repeat until he starts barking as soon as you say “speak.” Once your dog can reliably bark on command, teach him the “quiet” command. In a calm environment with no distractions, tell him to “speak.” When he starts barking, say “quiet” and stick a treat in front of his nose. Praise him for being quiet and give him the treat.

When your dog starts barking, ask him to do something that’s incompatible with barking. Teach your dog to react to barking stimuli with something that inhibits him from barking, such as lying down in his bed.

Make sure your dog is getting sufficient physical and mental exercise every day. A tired dog is a good dog and one who is less likely to bark from boredom or frustration. Depending on his breed, age, and health, your dog may require several long walks as well as a good game of fetch and playing with interactive toys.

How to Identify Common Pet Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced pet care professionals :

Dogs bark at people for a variety of different reasons, whether because they are excited, frustrated that they can`t greet the person, or even worried or uncomfortable about another`s presence. If your dog is barking while in your front yard, they may feel protective of their home or be warning others to stay away.
Associate the Doorbell with Treats

Start by getting another family member or friend to ring the doorbell or knock on the door and immediately feed your furry friend a treat. If your dog starts to bark, simply ignore your pup. Once your pup is quiet, try again.

Your dog is probably hearing or smelling an animal walking around…but stay alert just in case. Your canine`s intense senses could be warning you of an intruder or that something is wrong. Dogs are territorial and you may hear overly excited barking when someone comes to the door as he warns them to stay away.
To help your dog to settle when new people come to visit it`s a good idea to have a safe space that your dog can happily settle in, away from the excitement. Giving your dog a good walk beforehand will help him/her to relax, since they will have burned off any excess energy.
Most dogs are naturally wary of people venturing onto “their” territory and can see them as potential threats. They therefore feel that they are being helpful and protective by being vocal but at its most extreme this territorialism can lead to aggressive behaviour.
When she barks, say “Quiet” once in a conversational volume and friendly, upbeat voice. Wait until she stops barking. Do not repeat the cue. When she stops barking, praise her immediately and give her a food reward.
Barking is normal dog behavior and puppies won`t grow out of it, but you can take positive steps to reduce it and teach your dog alternative ways to communicate. Barking can be a really important tool to learn what scares your dog or makes them uncomfortable.
Sit/stay. Useful for keeping your dog otherwise occupied when a barking trigger is nearby. Ask your dog to sit and stay when another dog passes by the yard, and be sure to reward her liberally with treats to help her learn that being quiet and still = good!
Most dogs barking at strangers are barking for territorial reasons. When dogs are barking territorially, they may have stiff body posture and raised hackles. Dogs barking at strangers might also be barking out of excitement, however. This is common in well-socialized dogs that love seeing visitors and guests.
Licking is a natural and instinctive behaviour to dogs. For them it`s a way of grooming, bonding, and expressing themselves. Your dog may lick you to say they love you, to get your attention, to help soothe themselves if they`re stressed, to show empathy or because you taste good to them!
Many dogs that show territorial responses are often fearful and anxious and just want the intruder to leave. The longer the person stays within the territory, the more aggressively aroused the dog may become. The goal of the territorial display is to get the “intruder” to leave.
Threat or Fear

For example, some dogs may suddenly growl when there are strangers or new people in your home because they may feel threatened and are being territorial. Another example is dog growling when they are in an unfamiliar place or when they hear scary sounds such as thunderstorms.

Never Punish Your Dog

You should never use punishment for dog barking. Examples of punishment would be yelling, throwing objects, or trying to interrupt the barking by spraying water at your dog, making loud noises, or using citronella-spraying collars or shock collars.

Dogs can absolutely sense when their owners are too busy to pay attention to them when they are around. They are aware of your actions and behavior as their owner, and as a result, their mental and physical health can suffer if their owner or trainer does not pay enough attention to them.
Dogs can get tired of barking, especially when it`s excessive. And while both your pup and you may be exhausted by their barking, you shouldn`t let it continue with no explanation until they call it quits. It`s important to figure out what triggered the barking in case an underlying condition is a cause.
When dogs are worried or frightened, they may also bark at another dog to try and increase the distance between them and make the other dog go away. A worried dog who can`t avoid the other dog, for example because they`re on lead, might also be frustrated by this,” the team tell us.
A dog tilts his head to show that he is engaged much the way a human would nod during a conversation to indicate that he is listening. Social dogs that enjoy human interaction usually tilt their heads more often to encourage the continuation of the conversation and prolong the human contact.
The best way of treating aggression towards strangers is to prevent it by socializing your dog when they are young, exposing your dog to lots of different situations and people in a safe, controlled environment, and teaching your dog that strangers are not a threat to you or him.
Many dogs are fearful around people they don`t know well. Some people automatically assume these dogs have been abused in the past. Usually, this is NOT the case. Most of the time, if a dog fears strangers, she has simply been under-socialized to them.
Your dog may have been scared by someone.

Fear generalizes, quickly extending to other types of people. The dog quickly learns that acting on his fear with a display of barking, lunging, and maybe even snapping works quite well to make scary people move away.

Being calm when you return home helps to reduce the tension. For these reasons, it is helpful to ignore dogs with separation anxiety for between 10 and 30 minutes before departures and after arrivals. Consciously avoid interacting with your dog for at least 10 minutes before you have to leave.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. What can I do to stop my dog from barking at people and front doors?
ANSWER : A. Ignore your dog’s barking for as long as it takes him to stop. This means don’t give him any attention at all while he’s barking. Your attention only rewards him for being noisy. Don’t talk to him, don’t touch him, and don’t even look at him. When he finally quiets down, even to take a breath, reward him with a treat. To be successful with this method, you must wait as long as it takes for him to stop barking. If he barks for an hour and you finally get so frustrated that you yell at him to be quiet, the next time he’ll probably bark for an hour and a half. Dogs learns that if they bark long enough you’ll give them attention.

Teach your dog the ‘quiet’ command. It may sound nonsensical, but the first step is to teach your dog to bark on command. Give your dog the command to “speak,” wait for him to bark two or three times, and then stick a tasty treat in front of his nose. When he stops barking to sniff the treat, praise him and give him the treat. Repeat until he starts barking as soon as you say “speak.” Once your dog can reliably bark on command, teach him the “quiet” command. In a calm environment with no distractions, tell him to “speak.” When he starts barking, say “quiet” and stick a treat in front of his nose. Praise him for being quiet and give him the treat.

When your dog starts barking, ask him to do something that’s incompatible with barking. Teach your dog to react to barking stimuli with something that inhibits him from barking, such as lying down in his bed.

Make sure your dog is getting sufficient physical and mental exercise every day. A tired dog is a good dog and one who is less likely to bark from boredom or frustration. Depending on his breed, age, and health, your dog may require several long walks as well as a good game of fetch and playing with interactive toys.

Q. Whenever I take my dog on walks he always barks at people and others dogs in my neighborhood. What should I do to resolve the problem
ANSWER : A. The very first thing to do is to make sure your dog is getting sufficient physical and mental exercise every day. A tired dog is a good, happy dog and one who is less likely to bark from boredom or frustration. Depending on his breed, age, and health, your dog may require several long walks as well as a good game of chasing the ball and playing with some interactive toys.

Figure out what he gets out of barking and remove it. Don’t give your dog the opportunity to continue the barking behavior.

Ignore your dog’s barking for as long as it takes him to stop. That means don’t give him attention at all while he’s barking. Your attention only rewards him for being noisy. Don’t talk to, don’t touch, or even look at him. When he finally quiets, even to take a breath, reward him with a treat. To be successful with this method, you must wait as long as it takes for him to stop barking. Yelling at him is the equivalent of barking with him.

Get your dog accustomed to whatever causes him to bark. Start with whatever makes him bark at a distance. It must be far enough away that he doesn’t bark when he sees it. Feed him lots of good treats. Move the stimulus a little closer (perhaps as little as a few inches or a few feet to start) and feed treats. If the stimulus moves out of sight, stop giving your dog treats. You want your dog to learn that the appearance of the stimulus leads to good things.

Teach your dog the ‘quiet’ command. Oddly, the first step is to teach your dog to bark on command. Give your dog the command to “speak,” wait for him to bark two or three times, and then stick a tasty treat in front of his nose. When he stops barking to sniff the treat, praise him and give him the treat. Repeat until he starts barking as soon as you say “speak.” Once your dog can reliably bark on command, teach him the “quiet” command. In a calm environment with no distractions, tell him to “speak.” When he starts barking, say “quiet” and stick a treat in front of his nose. Praise him for being quiet and give him the treat.

As in all training, always end training on a good note, even if it is just for obeying something very simple, like the ‘sit’ command. If you dog regresses in training, go back to the last thing he did successfully and reinforce that before moving on again. Keep sessions short, 15-20 minutes max, and do this several times a day.

Q. My dog used to sleep with me. Now I make him sleep in the bathroom, next to me, with a gate in the doorway, but he barks all night. What can I do?
ANSWER : A. First, make sure he has somewhere comfortable to lay in the bathroom, such as a nice dog bed, a nice crate with a dog bed in it or a nice thick blanket. You cannot expect your dog to sleep on the hard floor all night and be comfortable.

If you really want to make this change, and you really want your dog to sleep in the bathroom, you have to ignore the dogs barking no matter what. 100% ignore the dog when he barks, especially when he begins to bark HARDER and LOUDER.

If you are ignoring your dog and he starts barking harder and louder, scratching, or yelping, this is called an “extinction burst”. Basically, this is the moment before he stops trying to get your attention. He will give it all he’s got for a few minutes (normally up to 30 minutes), and will finally give up.

Again, it’s very important to ignore ALL the complaining if you ever want it to stop. Scolding him, telling him “no”, or engaging him in any other way will only encourage him to bark more; it shows him he can get what he wants (your attention) if he barks.

Q. My 4 yr old male Catahoula Leopard Dog mix is a rescue. He’s become very possessive of me around larger dogs. How can I correct this behavior?
ANSWER : A. Sudden behavior changes can sometimes indicate an underlying health issue, so scheduling a checkup with your regular vet is always the first step. Once any health issues have been addressed, then you can address the behavioral ones. It is very common for dogs to become “possessive” of people or objects when around other dogs or people, and is called location guarding. Possession of objects or places can be a little easier to manage, however possession around other dogs can be treated as well. Working from a distance in a technique called BAT or Behavioral Adjustment Training may help. This technique involves your dog and another calm dog. Start off at a far distance and then move in until your dog becomes reactive or wary of the other dog. Move back a small amount and wait for your dog to become calm. If he shows calm behavior, reward with lots of praise, treats and love! If he becomes agitated or possessive, move back until he is calm, or stop the session completely and try again later. While this may take some time, it can help dogs learn that other dogs are not a threat to them or their people. Reading more information about BAT training or contacting a local trainer in your area can help with further advice and techniques!

Q. How do I determine how much my overweight pet should weigh?
ANSWER : A. There are many tools to determine overweight and obesity levels in pets. A new tool, morphometric measurements and body fat index, are available to accurately determine a pet’s ideal weight; this will allow an accurate determination of the amount of food a pet should receive to achieve weight loss. Feeding the correct amount will lead to greater weight loss success.

There are many weight loss food options to help pets reach their ideal weight. Your veterinarian can help make a ideal weight recommendation. Here are some tips to help your dog lose weight in a healthy and safe way:

1. Diet: Providing a healthy and well balanced diet is essential to your pet’s overall health. Finding the right food for your dog can be a challenging process. For those overweight animals many commercial dog companies offer weight loss diets, but it is important to evaluate food labels for adequate nutritional content.

You want to ensure you are not missing other essential vitamin or mineral content. Volume of food is also important and the amount of food that works for one breed of dog may not be the same for another breed of dog. Portion control as opposed to free-choice feeding can help your dog to drop a few unnecessary pounds.

There are also prescription weight loss foods designed by veterinary nutritionists, such as Hill’s r/d (http://bit.ly/1AoENSd). Some pet owners find that home cooking is the best option for helping to provide a well-balanced and realistic diet plan. There are websites such as balanceit.com that offers recipes to fit your dog’s specific needs. Consulting with your veterinarian or a veterinary nutritionist to find the appropriate diet is a great way to help your dog be as healthy as possible.

2. Exercise: Another great tactic for weight loss for your dog is exercise. Whether this is through running, walking or playing with a favorite toy all of these are wonderful types of exercise to help keep your dog at a lean and healthy weight.

For those pet owners with busy schedules utilizing professional dog walking services or playtime through dog daycare services is another option. It has been shown that those pet owners that exercise regularly with their pets generally live a healthier lifestyle.

3. Physical therapy: As animals age pet owners offer encounter their favorite canine having more difficulty walking and have a dwindling desire to play with toys. Physical therapy, specifically hydrotherapy is a wonderful way to help older and arthritic animals gain more mobility and lose weight. Hydrotherapy has been proven to have several therapeutic effects on the body including, muscle strengthening, relief of swelling, decreased joint pain, less stiffness in limbs, improved circulation, weight loss, and increased tissue healing to name a few. For more information on the benefits of hydrotherapy:
http://bit.ly/1w1qqoy

4. Veterinary visit and blood work: Weight gain can also be related to underlying health concerns such as hypothyroidism or other endocrine disorders. Scheduling a veterinary evaluation and routine blood work can be another important component in increasing the longevity of your dog’s life. Conditions such as hypothyroidism that predispose dogs to gain weight can be treated with a daily medication to improve hormonal balance. If feel that your dog is unnecessarily overweight there can be an underlying health condition that needs to be addressed.

5. Healthy treats: Pet owners love the chance to reward their favorite canine companion with treats and most dogs jump at the chance to consume these delicious products. The problem is many treats, which can include commercial dog treats or table scrapes can add many unnecessary calories to your dog’s daily intake. Reading labels and making note of the calories in these treats is an important component of understanding your dog’s overall health. Treats should not exceed more than 10 percent of your pet’s daily calories. There are healthier treats that can be offered to your pet to keep calories lower yet provide a fuller sensation. A pet owner can add steamed or pureed vegetables, such as carrots, green beans or sweet potato to add more fiber and thus a fuller feeling for your dog.

Q. Rescued a dog almost two weeks ago, and now that her kennel cough is gone her personality shines!! No previous training, how should I start?
ANSWER : A. POST FOUR:

After your dog is familiar with the behavior you lured from scratch, and taught to your dog, you can start to use the “no-reward marker” I talked about. What you do is ask the dog to perform the behavior, and if the dog does not perform the behavior, you simply say your no-reward marker (choose one: eh-eh, hey, uh-oh, oops) show them the treat, put it behind your back, and BRIEFLY ignore your dog. Just turn your back for a second or two, before turning back to your dog and saying, “let’s try that again.” When you’re ready to start over with your dog, make sure you move around. If you are repeating the same cue while in the same position, while your dog is in the same position, you are likely to receive the same results. The more you move around, and start fresh, the better your chances are of having your dog listen to your cue the second time around. BIG rewards when they dog it successfully! Lots of praise and treats.

My no-reward marker is “hey.” When my dog does something wrong I say, “hey” and she immediately understands that she needs to offer a different behavior. This is clear to her. I don’t have to say it in a mean way, I simply say, “hey” in a normal tone of voice and she understands what the word means.

Once you’ve built up that connection and communication with your new dog, you can work on all kinds of fun behaviors! I personally enjoy the more zen-like behaviors: https://www.youtube.com/watch?v=ruy9UMcuGh8

I like to teach my dog fun tricks that offer her a “job” to do of sorts like object retrieval: https://www.youtube.com/watch?v=I4iertZSva8

(object retrieval training completed; what it looks like: https://www.youtube.com/watch?v=jx0Dml28FGY)

Scent-games are fun too! Very confidence building. Hide a REALLY smelly treat in a box, and place that box in a line of boxes. Let your dog go in the room while saying something like “search!” or “find it!” and watch them hunt for that smelly treat! Lots of rewards when they find it!

Q. 2yr old unfixed male Swiss Mtn dog Started a new behavior of barking loudly in my face. No does not work. He does this if I go to the barn what’s up
ANSWER : A. Fear barking should be treated delicately. You should use high value treats (chicken, cheese sticks, hotdog bits, diced ham, cooked fish, turkey pepperoni, turkey bacon – all cut into tiny little bits.. or peanut butter in a squeeze tube, etc) and with the high value treats you should begin feeding them as soon as your dog becomes uncomfortable. Try keeping your dog under threshold. If going to the bark makes your dog bark (out of fear of the barn), then slowly work on his attention just outside of where he would bark. Slowly move closer feeding him treats the entire way. If at any point he begins barking, back up and work under threshold.

If this is separation anxiety, you should be working slowly at leaving your dog behind. First, make it seem like you’re leaving, “coat/shoes/keys/hat” and open the door, but close the door and don’t leave. Toss your dog a few treats without looking at him or talking to him. Slowly work on exiting for short amounts of time, returning to toss treats

Read Full Q/A … : Vetinfo

Q. Why does my dog eat grass?
ANSWER : A. As another user mentioned, dogs can eat grass when they want to vomit. Sometimes, when a dog has an upset tummy, they will eat grass. If you notice your dog eating grass frantically, you can assume vomiting will shortly follow. Grass does not digest and pass normally. If your dog eats too much grass, it can cause serious issues with pooping. Your dogs poop can end up all tangled inside of her, and it can need veterinary assistance to remove it. The same goes for celery, so avoid feeding celery to your dog.

The other day my boyfriend accidentally left the laundry room door open where we were keeping the trash that was filled with cooked chicken bones. She ate one of the chicken bones lightning fast. We had to induce vomiting by feeding her some hydrogen peroxide. After we had fed her the peroxide, she immediately began frantically eating grass because her tummy was upset.

If there is something lacking in your dogs diet, it could be that your dog is eating grass to make up for it. I am sure that my dogs diet is extremely well balanced (I do not only feed her an air-dried raw food-type diet (Ziwipeak), but a wide variety of safe, healthy foods), so when she eats grass, I know that it is because she has an upset tummy.

That is why I think it is important making sure your dog has a very well balanced diet. If your dog is on a low quality kibble, your dog may be trying to let you know by eating grass (or eating poop).