JAY PRATTE FOR LOVE UNDERDOGS: NUTRITION HANDBOOK Section 1: Assessing your dog’s health Section 2: Nutrition and diet / meal choices Section 3: Age and life stage considerations Section 4: Medical considerations Section 5: Feeding schedules Section 6: Treats Section 7: Human food and your dog Appendix I: Body Condition Score (BCS) charts ©JayPratte, 2015 NUTRITION HANDBOOK This section of your handbook is to provide insight into your dog’s physiology and dietary needs. It will cover life stages, appropriate foods and choices, treats, supplements, etc. We will also touch on obesity issues and other possible medial conditions that you should be aware of. Remember, your dog ONLY has the choices that YOU provide. All dogs are different, and ‘standard’ amounts or products may not be right for your dog. If you are in doubt about an issue with diet or health, always consult a veterinarian or nutritionist (animal nutrition specialists are available) 1. Assessing your dog’s health Congratulations! You have rescued a dog, and not a wolf. Yet while we discussed in previous Handbooks how dogs have evolved alongside of humans over thousands of years and are no longer pack animals roaming the wild, they still possess the same basic digestive system that their ancestors did. Tonka the 130 pound Rottweiler has the same type of tract as tiny 22 pound Sigmund the Frenchie, and they are both nearly identical to their feral canid ancestors. This is important for us to remember while reading this handbook, as some of the information will then make more sense. While our furry friends will happily consume most processed foods, table scraps, and random other items, they (or we) think would be edible, dogs are still genetically engineered to require protein as dietary staple (see Section 2) Our propensity to feed dogs whatever comes in a flashy package or items that they learn (or coerce us into thinking they are picky about) are tasty leads to a number of long term weight and health issues. Therefore we need to start off right and maintain dietary consistency from the beginning. This does NOT mean only feeding them the same thing every meal (think about how you’d enjoy that…), but that we are consistent in how we approach their nutritional needs over time, and in how we assess their health at any given moment. ©JayPratte, 2015 So start by looking at your canine friend now. How do they look? Is their coat shiny and full? Are their eyes bright and aware? And is the animal energetic and n=engaged or lethargic? Check the animal’s teeth and nails (if this is a challenge, see the Training Handbook for assistance). Do they look ‘normal’? If the nails are brittle and flaking, or the teeth and gums do not look healthy (receded, covered in plaque, etc.), you need to reassess the animal’s current diet and work on appropriate nutritional needs. Now let’s look at weight. Multiple studies show that over fifty (that’s 5-0…) percent of dogs are overweight or obese. It also appears that owners AND veterinarians are markedly under-diagnosing weight problems. One way of assessing where your dog fits into things is researching Body Condition Score (BCS) charts appropriate to your dog’s size/breed. Here is one example: For your reference, the BCS charts for different sized dogs are included in Appendix I at the end of this handbook. A quick assessment is: does your dog have a ‘waist’? And when you run your fingers over their side, can you feel ribs at all, or just a layer of fat? Honesty in assessing a dog’s weight and health are vital. Dogs, like people, can suffer from weight-related issues such as spinal and joint problems, respiratory difficulties, and even diabetes (just to name a few). If you are concerned about the animal’s health or weight, consult a veterinarian or canine nutritionist if this handbook does not provide helpful information. It is your responsibility to help your furry friend be as healthy as possible! ©JayPratte, 2015 2. Nutrition and Diet /Meal choices Like the issues we see every day with human food, what we *think* we are feeding our dogs may be misleading. Chicken McNuggets™ are technically the same type of protein as a lean chicken breast, but we know that the differences in preparation, packaging, additives and other ‘alternations’ make all the difference in the world to their impact on health. There are as many ‘fast food’ and ambiguous marketing issues with pet food as with ours, and so it is up to you as a responsible pet parent to do a little research on your own to avoid feeding an improper diet. Keep in mind that your dog’s nutritional needs will also change based on their age/lifestyle (see Section 3). Meat-based foods are essential; many dog foods are mostly corn/vegetable-based. You get what you pay for; good quality = better health. Dogs need to eat less of a quality food to maintain necessary calories and nutritional balance. Check ingredient lists to see how much of what you do (or do NOT) want are present. A ‘high protein’ dog food can be comprised of indigestible items like feathers, hide or hooves. The declared protein level by analysis might be high but if the dog cannot digest the substances, then the protein molecules cannot break down into essential amino acids for absorption. A dog’s body synthesizes many necessary proteins/amino acids; there are only a small number to keep track of: ‘Essential amino acids’ (obtained only through diet) –Arginine; Histidine; Isoleucine; Methionine; Phenylalanine; Tryptophan; Threonine; Valine, Leucine; Lysine. High protein on the package may be misleading: check the ingredients label to see if the source of protein is digestible. Table #1 - Protein Digestibility List Egg whites Muscle meats (chicken, beef, lamb) Organ meats (kidney, liver, heart) Milk, cheese Fish Soy Rice Oats Yeast Wheat Corn 1.00 .92 .90 .89 .75 .75 .72 .66 .63 .60 .54 Just like human foods, ingredients must be listed according to weight of the ingredient added in descending order. So by weight of raw ingredients, the main ingredients is listed first, second most prominent ingredients next, etc. The first three ingredients are vital. ©JayPratte, 2015 Check if the diet is meat-based with lamb, fish or poultry listed as the main ingredients, or vegetablebased with corn, rice, wheat, or soybean meal listed as the main ingredients. Canine and Feline Nutrition lists substances that provide protein, including beef, chicken, eggs, fish, lamb and appropriate by-products (organ meats like liver, kidney, stomach, heart, blood, spleen, etc.). ‘Meat byproducts’ however is not enough information, so look for something specific, like ‘chicken by-products’. ‘In general, high-quality animal source proteins provide superior amino acid balances for companion animals, compared with the amino acid balances that are supplied by grain proteins. The protein in grains is not as balanced or available as the protein in high-quality animal sources…’ So it makes sense to feed your little carnivore a meat-based diet over a vegetable or grainbased one, correct? Well this quality and ‘appropriateness’ will translate directly into cost. The meat-based products will invariable be more expensive than those based on cheap vegetable matter. To be responsible and make the best choices for your dog, try not to let the price of food dictate your buying decisions regarding food. Dog food, again like human products, is very much a ‘you get what you pay for’ situation. The higher the quality, the more expensive the food is. Higher quality ingredients mean increased nutritional value for your dog. Cheap dog foods will contain cheap poorly digested ingredients that will lead (over time) to health problems. Ultimately, you will end up buying less high-quality food than cheap food; your dog needs to eat more low-quality food to meet their dietary needs. You furry friend will also poop less when consuming a high-quality diet than with a grain-based diet; cheap ingredients are less efficiently digested, and consequently more faecal waste is produced. Pay attention to ‘ingredient splitting’; pet food manufacturers may break down a product analysis into different forms of the same ingredient to make the analysis look better. For example, corn is NOT an appropriate protein source, since it contains only 4/10 essential amino acids, no taurine, and nutrition experts do not include it on lists of protein source in pet foods. But because of the law requiring ingredients to be listed by weight, ‘corn’ is often broken down into different forms, then each corn derivative is placed separately into the analysis according to the amount of the form present. The analysis may list ©JayPratte, 2015 ground corn, yellow corn meal, corn gluten, and corn gluten meal separately, so that instead of corn being the main ingredient by weight, it places it further down the analysis to make it appear that there is a lot less in the product than the actual amount. So read your ingredients carefully while buying food for your dog. To help with making an educated choice, the following link leads to an excellent article and review of foods on Reviews.com (http://www.reviews.com/dog-food/) Also, cross referencing this link with the UK site (http://www.allaboutdogfood.co.uk/thedog-food-directory), two notable brands on the top of both lists/reviews are Orijen and ZiwiPeak. Canned/Wet Foods? So what about canned or wet food? While they can be high in protein sources and more quality ingredients, and are usually exceptionally palatable to your dog, they are generally 75% water. This means that 75% of your cost is going towards a non-nutritive ingredient that you can readily supply on your won. Wet foods can be very helpful with picky dogs or with those who may have lost teeth due to age or illness, yet can also be high calorie and difficult to judge correct amounts to feed. Using it as a supplement to dry food (mixing small amounts in) can improve the taste of your dog’s potentially boring daily chow and be very enriching as a surprise periodically. Keep in mind that one other advantage to dry foods is that they improve oral hygiene through crunching friction, helping to keep the gums and teeth healthier than wet food alone. Supplements A quick note on supplements. If you have chosen quality food, appropriate for the life stage of your dog (see Section 3), then good commercial dog foods are manufactured to provide the correct balance of vitamins, minerals, and protein that your dog requires. If you are noticing specific health issues with your dog, consult a veterinarian, but do not ever just add a supplement to your dog’s diet without specific veterinary recommendations. Some ‘supplements’ can be toxic when they accumulate in a dog’s system, and dogs can also be sensitive to specific additives or extras. Common supplements are glucosamine and chondroitin, often given together to help protect the joints to prevent or slow progression of arthritis. These work to increase lubrication within the joint as well as repair cartilage. Speak with your veterinarian if you have age or breed specific concerns for your dogs, and they will recommend an appropriate brand or dosage. Omega-3 fatty acids, such as those found in fish oil, are another common supplement. Omega-3 fatty acids are powerful anti-inflammatory for the skin and joints and can help support the function of multiple organs. Speak to your veterinarian regarding if your dog needs additional omega-3 fatty acids, and how much to give. ©JayPratte, 2015 3. Age and Life stage considerations A puppy clearly does not have the same nutritional requirements as an adult or senior dog. Use the information in Section 2 as a quality guide, and consider the following life stage guidelines. Remember that the age ranges are not the sae across dog breeds. Smaller dogs generally mature faster and live longer than larger breeds; bigger dogs mature over a longer period of time and have shorter spans of adulthood/senior citizenship. That said, every dog develops and ages at their own rate, so watching your dog’s health, weight (Section1) and activity levels will help assess where you and your dogs are currently at. Puppies need more protein and calories while growing than they will as an adult. Use BCS charts (Appendix I) to assess your adult dog’s weight and adjust food intake. Though senior dogs need less calories, they need good quality. For any life stage, monitor the dog’s BCS, activity levels, and overall health. Puppies Your dog is considered a puppy, and then an adolescent (or juvenile) from about four weeks of age until somewhere between 6 and 18 months depending on breed. A growing puppy needs about twice the amount of daily protein intake as an adult, and about 50% more dietary fat. They require sometimes up to twice as many calories as they will ingest as an adult while they are growing. This is a vital period to check ingredients and ensure the food is higher quality. As they get older, they will need less protein and calorie intake, so keep an eye on their growth and Body Condition Score (Section 1, Appendix I) and make changes when needed. If you are unsure, consult a pet nutrition expert or veterinarian. Adult dogs Adulthood for dogs begins anywhere from 12 months to three years of age; again, smaller dogs will reach their adult size sooner than larger dogs. Throughout this stage the dog needs a good quality food to maintain healthy activity levels and to build a foundation of good health for their senior years. The better care provided during the first two stage of life, the longer your fury friend will be with you, and will endure fewer health problems as they age. ©JayPratte, 2015 Assess your dog as an individual. The feeding instructions on the pet food packaging may be a general guideline, but may be completely inappropriate for your pet. More active dogs, or individuals (just like people) with higher metabolism rates will require more calories daily. My two Frenchies at home both weigh around 22 pounds; Pavlov gets 2/3 the amount of food that her active, younger brother gets (and she’s still a little round…). Senior dogs A dog is considered ‘senior’ starting between 6 and 10 years of age, again depending on breed and individual. Every dog will be different, but as they age and activity levels decrease, continue to assess their BCS and adjust food intake accordingly. My old man, Biscuit, is a lab mix I have had since he was 8 weeks old. He is 14 years old now, and only last year sis he start slowing down enough to where I had to decrease his food! Be careful in choosing ‘Reduced calorie’, ‘Lite or Light Diets’ or ‘Senior Diets’ as not all are beneficial for dogs. Some have restricted fat levels to reduce calories, and consequently increased carbohydrate percentages. As in humans, increase carbohydrates can stimulate additional insulin secretion, causing the body to store unused calories as fat. So some dogs may gain weight on ‘reduced calories’ foods. Consult with your veterinarian as to which diet is best for your pet. A meat-based diet higher in protein (which will not store as body fat) and fat, while low in carbohydrates is more appropriate at this life stage. Now just ©JayPratte, 2015 adjust the quantity fed based on activity and your dog’s BCS so that your dog is not taking in more calories daily than they are burning off. As always, if you are unsure, consult a pet nutrition expert or veterinarian. Pregnant/lactating females Whilst Love Underdogs never adopt out pregnant or lactating females, you may still find this information useful, should you ever find yourself looking after one. Firstly, you will need to adjust calorie intake accordingly. A pregnant female may need her diet increased by up to 25% (or more, depending on activity level and number of puppies). Once the pups are born, the more puppies she is nursing, the more calories she will need. Caloric intake will also continue to increase as the puppies grow in size, until weaning at approximately 8 weeks of age. Protein and fat intake need to be higher during pregnancy and nursing to ensure the proper health of both mother and offspring. 4. Medical considerations Dogs, as humans, can suffer a range of health issues related to diet and nutrition. Obesity is one complication we can avoid (along with any number of problems it leads to) by consistently assessing the dog’s body condition (Section 1) and choosing a healthy, highquality diet. Quality met-based foods are less likely to develop conditions like diabetes or hyperthyroid complications. Dogs can also be lactose intolerant, which generally affects the treats we give them more than anything, but if strange symptoms develop and the food you use contains any dairy-based products, this might be a consideration. Dogs often may develop allergies to corn, wheat, soy and other foods. Allergies are usually symptomized by dry, itchy skin, reddened, swollen ears; itchy face and chin; compulsive licking of the paws. Keep in mind, some of these symptoms may also conceal separate issues (for example, my little Frenchie Pavlov often suffers yeast infections in her ears and between her toes, which can cause redness and itching). Be aware of potential food allergies and intolerance. Dogs can be lactose intolerant as well. High quality foods will help minimize food-related health issues. If you are in doubt about an issue with diet or health, always consult a veterinarian. Vomiting and /or diarrhea can occur if your dog develops food intolerances. Food allergies and intolerances need to be diagnosed by a veterinarian, so if you notice issues with your dog’s health be sure to talk to a professional right away. Dietary deficiencies may take a significant amount of time to develop. However, high-quality foods are unlikely to trigger ©JayPratte, 2015 these types of problems, and switching to a higher quality food with less processed ingredients and vegetable-based matter will often eliminate them over time. A dog that is suffering health complications will also have different nutritional requirements. If you know your dog has a specific issue, be sur to speak to a veterinarian or nutrition expert about modifying your dog’s diet to meet specific challenges (for example, altering protein and carbohydrates intake in diabetic animals.) 5. Feeding schedules How much should you feed your dog, and when? Section 1 through 4 have discussed how to assess wat the correct amount of food is for your dog. It will be based on a number of factors, and will change over time. Some dogs will monitor their own food intake well and can be ‘free fed’, where their own food bowl is left out and they can eat as they please. Most dogs will likely need a little more observation for proper health management. Unless you are measuring how much food is being left out and subsequently consumed each day, then it is impossible to know how much your dog is eating regularly. This makes it challenging to alter the diet if changes in weight or health occur. Setting up a feeding schedule is usually the best plan, particularly one that mirrors you own eating habits. If the dog is eating at the same time you are, then behaviourally you may be minimizing potential ‘begging’ issues down the road. I personally recommend two meals a day, for a few reasons. Like with humans, dogs need calories and protein to start their day in a healthy manner. Their mammalian bodies are like ours in needing the correct types of nutrients and energy to function well. Breaking down their total amount of food into a couple of meals helps keep their metabolism up a bit, and keeps food in their stomach longer. This can be a HUGE deal if your dog is fed only one meal a day, and develops ‘psychological hunger’. Animals can eat once a day, but then over the rest of the 24 hour period feel like there are hungry and should be eating or filling their stomach. Likely they observe us eating, and if their stomach is empty (regardless of whether they have had their daily caloric intake or not) they may end up ‘hungry’. Psychological hunger can end up in undesirable chewing behaviours, or lead to begging, displaced frustration/aggression, or to eating fecal waste. By separating their food into two or three separate feedings, you can minimize this type of issue. This will also spread the calories out over the course of the day. Like with people, several small meals keeps the metabolism up and helps burn off calories more efficiently. Controlling and monitoring a dog’s food intake is preferable over ‘free-feeding’. Multiple meals balance metabolism and minimize ‘psychological hunger’ and begging. Use portion of daily food to train your dog if you are able, to minimize extra calories from treats. ©JayPratte, 2015 Other random issues that feeding multiple meals can address are examples such as ‘Bilious Vomiting Syndrome.’ From PetMD: ‘The classic symptoms of bilious vomiting syndrome is vomiting on an empty stomach. This usually occurs first thing in the morning since most dog’s stomach is empty, all that comes up is fluid, mucus, and often some bile, which tinges everything an orangeybrown color. Dogs with bilious vomiting syndrome are normal in all other respects….no diarrhea, weight loss, poor appetite, etc.’ My Rottweiler, Tonka, developed this at around 8-10 months of age. He would wake up like clockwork around 4 am and vomit up bile or anything left in his stomach. After having him checked by the veterinarians (always rule out medical problems first), we determined he was fine and may have BVS. Tonka went from two meals a day to three (one right before bed) and the problem vanished immediately. So a feeding schedule that offers up multiple opportunities can potentially aid in helping or preventing other physiological or psychological issues. One last note about feeding schedules: do not be afraid to try and use the dog’s dry food for training sessions throughout the day. Most dogs will happily work and do requested behaviours for a few pieces of dry food at a time. If you’re able to do this, you can minimize the treats you hand out, as the treats can be a huge source of calories and other dietary problems (see Section 6). 6. Treats We are going to want to reward and make our dogs happy, and one of the ways we like to do that is through treats. Chewy items, training rewards, people food, all of these will end up being offered at some point. It is our responsibility to ensure that the treats we provide are healthy and do not impact the dog’s short- and long-term welfare negatively. Training treats should be small, easily consumed, and monitored for calorie intake. Bones and ‘chews’ often carry a risk of choking and impaction in the digestive system. ‘People’ foods can be safe and healthy for dogs. See section 7 for Good/Bad charts. ©JayPratte, 2015 ‘Training’ treat Let’s consider these the bite sized Milk Bone™ type treats we like to hand our pets. They might be crunchy, chewy, meaty or whatever, but we generally hand them out regularly when the dogs make us smile. Consider them like candy in a few ways. Firstly, we do not want the dogs to get too much. We can portion out the animal’s dinner all we want, but if we (and other family members) indiscriminately hand out treats whenever, we could unintentionally be pushing the dog’s calorie limit over the top. This can quickly lead to obesity, weight complications, etc. Treats should usually be small, bitesized and easy for the dog to consume quickly (unless you want a treat to last longer as a distraction or to occupy their time). The smallest treat that has value to the dog should be used. As long as they keep listening to you and they enjoy the treat, keep it minimal. Remember, different dogs have different favourite items, so know what they prefer. I will usually use moist treats from sealed foil bags. Small ones that can be broken up (I have a 130 pound dog and a 22 pound one…) are easiest. In moderation, this is minimal calorie intake. Keep in mind if the dog will not train for his food (say, on a walk), then use some treats and consider pulling a little food from their dinner to compensate. Try to buy known brands, and always be aware of potential recalls. Several types of dog treats over the past few years have contained toxins, and led to dog illnesses and death in several counties. Bones Experts go both ways on the value of bones in our dog’s feeding routing. On the one hand, dogs are carnivores and designed to process and pas a certain amount of bone material. Chewing on a bone can also have dental benefits in helping keep plaque and tartar under control. As fur and bone are processed through the canine digestive tract and expelled, it also helps clear the dog’s anal glands. However, there is nothing in the bones that a dog NEEDS. There are also severe risks involved. Chunks of bone can break off or splinter and become lodged in the dog’s mouth, throat or digestive tract. This will result in an expensive surgery, IF you catch the problem in time. Should you decide to offer your dog a bone to gnaw on, make sure they cannot swallow it whole or bite chunks off which can be problematic. Never leave your dog unattended with a bone. It is probably better to err on the side of caution and give your furry friend appropriate, durable toys to chew on. ©JayPratte, 2015 Chew treats There are a tremendous number of chewing products for dogs on the market. Rawhides, pig ears, hooves, antlers, just to name a few. Some are packaged up nicely at the pet store, others can be found more organically from local farmers or markets. Keep in mind, like with bones, there are often risks associated with a lot of the chewable items. Rawhides will swell both as the dog is chewing on them, and then further once in the digestive system. This can lead to impaction or other problems if bigger chunks end up ingested. Often they can splinter or break off, and dogs are tempted to ‘wolf down’ what they can quickly, which leads to a choking hazard. Rawhides and pig ears are not offered in my home anymore, as on two separate (thankfully supervised) occasions, Sigmund the Frenchie tried to swallow a small-dog sized treat almost whole, and I had to pull it from his throat as he was choking. We now focus on nylon toys and deer antlers. Oddly the deer antlers do not splinter and help keep teeth very clean. Three out of four of my pack love chewing on them. Hooves are also VERY popular with most dogs, and do not splinter or break easily. But be warned, once the dog starts chewing on them, they small terrible. Following are some excerpts from an article on The Science Dog, regarding chew treats: ‘Chews made from pig’s ears, composed primarily of cartilage and the protein collagen, had a very low gastric (stomach) digestibility. Although these were almost completely digested in the intestinal environment, the lack of change in gastric acid means that a pig’s ears treat, if swallowed, would potentially leave the stomach intact and enter the small intestine with little change in size and consistency. Similarly, rawhide chews made from cow skin were very poorly digested in the stomach. Intestinal digestibility was low in the intestinal environment. Researchers noted that feeding rawhides chews to a dog who tended to consume large pieces could increase a dog’s risk for intestinal blockage. When a pork skin chew was compared directly to a beef rawhide chew, the pork skin product’s digestibility was significantly greater than that of beef rawhide chew. After six hours, which is approximately the time it takes for a meal to begin to leave a dog’s stomach and enter the small intestine, the pork chew was more than 50 percent digested, while the rawhide was only 7.6 percent digested. This low rate of gastric break down continued even when tested up to 24 hours. After simulation of digestion in the small intestine (the major site of digestive processes in dogs), the pork skin rawhide was almost 100% digested, while the beef rawhide reached only 50 to 70% digestion under the same conditions for 24 hours.’ ©JayPratte, 2015 So in short, if you are going to choose a chewing treats for your dog, go with safe/durable nylon or latex toys that are safe if ingested, antler pieces, hooves, or pig skin treats. People food Using human food for treats is fine, provided you are aware of calorie intake, toxicity, and that you try to avoid encouraging begging behaviours. For a discussion of ‘safe Versus potentially toxic people food, see section 7. There are a few items that are useful and of high value that, again in moderation, can be given to your canine friend. Hot dog slices or small pieces of cheese (providing your dog is not lactose intolerant) will be valuable treat, and often help with delivering pills when necessary. Try other interesting and healthy options with your dog periodically. Baby carrots are a high value reward in my home. It did not start out that way, but over time I ‘sold’ the dogs on how delicious they were, and now everyone loves them! Treat toys Think about how you can deliver treats to your dog while you are away, or to occupy them for longer than it takes them to swallow a small bite. Several manufacturers make dog puzzles and treat toys that can engage your dog for long periods. Some dispense dry food, others (like a simple Kong™) can have a small amount of peanut butter or other healthy treats jammed in for the dog to work out over time. Be aware, some toys require a specific type of treat to work or fit properly. This seems inconvenient, but it is usually another way to keep getting money from you. Know what the treats involved are as well, to ensure your dog is safe and not getting fat with them. Also, unless you know that a toy is strong enough to withstand your dog’s attentions, do not leave them unattended. In my home, my old Lab Biscuit will play with toys for hours, knocking them around until the treats all come out (or they roll under the bed). The Rottweiler, Tonka, however decides the best way to get the food out is the bite through the toy, so he cannot have access to Biscuit’s hard plastic kibble-ball, but is fine with a larger rubberized version. ©JayPratte, 2015 7. Human food and your dog I know while I am cooking or eating, the dogs are always looking for a free treat. I regularly research what ‘human food’ items are safe for the dogs and which are not. For convenience, the compilation of the research is below, broken into two categories: GOOD or BAD for your dog. ©JayPratte, 2015 ©JayPratte, 2015 ©JayPratte, 2015 ©JayPratte, 2015 ©JayPratte, 2015 ©JayPratte, 2015 Appendix I: Body Condition Score charts for the different dog size ranges. (University of Liverpool: Royal Canin Weight Management Clinic) ©JayPratte, 2015 ©JayPratte, 2015 ©JayPratte, 2015 ©JayPratte, 2015 ©JayPratte, 2015 ©JayPratte, 2015 Sources ‘AAHA Canine Life Stage Guidelines’, J. Bartges, PHD, DVM, DACVIM, DACVN (et al) (American Animal Hospital Association/2012) ‘Canine and Feline Nutrition: A Resource for Companion Animal Professionals’, L. Case, D. Carey, L. Hirakawa and L. Daristotle (Mosby/2000) ‘Contrasting Grain-based and Meat-based Diets for Dogs’, T. J. Dunn, Jr., DVM (PetMD.com) ‘Canine Obesity – An Overview’, J. Gossellin, J. A. Wren and S. J. Sunderland (Journal of Veterinary Pharmacology and Therapeutic, 30: 1-10/ 2007) ‘Development and Validation of a Body Condition Score System for Dogs’, D. Laflamme DP (Canine Practice, 22: 10-15/July-August 1997) ‘Your Dog’s Nutritional Needs; A Science-Based Guide for Pet Owners’, (National Research Council of the National Academies/2015) ‘Principles of Dog Nutrition’, T. J. Dunn, Jr., DVM (PetMD.com) ‘Should I Give My Dog Supplements?’ Ashley Gallagher, DVM (PetMD.com) ‘Small Animal Clinical Nutrition, III’ Lewis, Morris Jr. (Mark Morris Institute/1 Jan. 1994) University of Liverpool: Royal Canin Weight Management Clinic (http://www.petslimmers.com/) ‘What Foods Are Toxic For Dogs’, Sarah Logan Wilson; Oct 24, 2014 (http://www.caninejournal.com/foods-not-to-feed-dog/) http://www.naturalbalanceinc.com/signs-of-pet-obesity.aspx http://thesciencedog.wordpress.com: Rawhide digestibility. www.reviews.com: It’s All About Quality Ingredients. Updated July 14, 2015 ©JayPratte, 2015