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Good sources of protein include eggs and fish, which have a high biological value. This value describes the percentage of usable amino acids within the protein. [6] It has been recommended that a minimum of 2.55 grams of protein per kilogram of body weight should be fed daily to ensure that protein requirements are met. [3]
Natural protein concentrates (often used in bodybuilding or as sports dietary supplements): Soy protein isolate (prepared with sodium or potassium): 80.66; Whey protein isolate: 79; Egg white, dried: 81.1; Spirulina alga, dried: 57.45 (more often quoted as 55 to 77) Baker's yeast: 38.33; Hemp husks 30
Specifically, the reactions are understood to be initiated by the protein ingredients in dog food, with sources such as beef, chicken, soy, and turkey being common causes of these allergic reactions. [83] [84] A number of "novel protein" dog foods are available that claim to alleviate such allergies in dogs. [85]
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A pet food made of chicken meat may therefore have only 20% of the chicken in the final product, providing only 3.6% protein. An equivalent proportion of chicken meal would provide 13% protein. (For example, 100 lbs of chicken meal provides 65 lbs of protein while 100 lbs of chicken provides only 18 lbs of protein.)
Beef, soy, chicken, turkey and egg products are commonly used ingredients in commercial dog foods as a source of protein. [3] [15] These protein sources have been proven to elicit an allergic response in dogs with food allergies. [3]
If a protein source is missing critical EAAs, then its biological value will be low as the missing EAAs form a bottleneck in protein synthesis. For example, if a hypothetical muscle protein requires phenylalanine (an essential amino acid), then this must be provided in the diet for the muscle protein to be produced. If the current protein ...
Fat is a nutrient that provides more energy per gram than all other nutrients. [18] Fat provides 9.4kcal/g of gross energy (GE) compared to protein and carbohydrate which only provide 5.56 and 4.15 kcal/g respectively. [18]