Cynology: Dog Nutrition. Translation and explanation of top-end dog food

There is a bewildering supply of dog foods on the commercial market in Central Western Brazil.  It is important when choosing a food for your pet to take into account the breed.  Is it a small, medium-sized, large or giant breed?  I have two dogs, a Siberian Husky (Husky Siberiano) and a Black-and-Tan German Shepherd crossed with a Belgian Shepherd (Pastor Alemão de Capa Preta x Pastor Belga). These are considered large breeds.  The consideration is based upon their weight, not height at shoulder, which might be used were we discussing wild canidae. 

There is a well-known top-of the-range dog food and today I read the label and explain it.  

Firstly it is recommended to change a dog's diet gradually, and that means over a period of seven days. 

This top-of-the-range food consists of the following. Ground bird viscerae; ground whole corn.  This corn is genetically modified by Bacillus thuringiensis, Streptomyces viridochromogenes, Agrobacterium tumefaciens and Zea mays.

Continuing with the ingredients: broken rice; soybean meal.  The soybean has been genetically modified by Agrobacterium tumefaciens, Arabidopsis thaliana, Streptomyces viridochromogenes and Bacillus thuringiensis. 

The dog food also contains potassium chloride, chicken fat, genetically-modified corn-gluten-meal, beef tallow, calcium carbonate, beetroot pulp, refined soy bean oil, zeolite.  Zeolite is a readily hydrateable and dehydrateable  mineral used as a cation exchanger and molecular sieve. 

Also the food contains refined fish oil, sodium chloride, that is, common salt, bicalcic phosphate, vitamains E, A, D3, B1, B2, B6, B12, PP, pantotenic acid, biotin, folic acid, choline chloride, iron sulphate, copper sulphate, manganese oxide, zinc oxide, calcium iodide, dry beer yeast, selenium-enriched yeast, DL methionine, palatabilizer (chicken-liver) and antioxidant.  

That's the product's basic composition.  For a complete picture, one must take into account the minerals and vitamin enrichments, which are given on the label. But this provides hopefully some insight into quality dog food.