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From: Bedlington Terrier Discussion List     Subject: Re: dog foods and copperThis is an analysis of copper contents in a number of foods.  It wasdone more than a year ago, and things do change, but BilJac is the same.Frozen BilJac is one of the best dog foods on the market today and ifyour Bedlington is not affected it is an excellent food.  Remember, ifyou know the status of your Bed you don't have to feed the lowest copperdog food (another reason to biopsy early).All dog foods contain copper, but there is a difference.  We used themost popular or the adult maintenance formulas mostly in this paper.Although copper levels vary widely between manufacturers, there is onlya small difference in formulas within each company's products.   We didnot inquire about any prescription products which may be very low incopper.   Because of the various ways of measuring (wet, dry, dry food,etc) the actual amounts may differ as much as 2 mg , depending on theway the company presents the amounts.  For instance, if you convertPedigree Mealtime to the AAFCO Dry Food standard, it's actually 6.6mg/kg. - right on the nose for AAFCO's minimum copper recommendation.If you convert it to another standard for bulk food, it's slightlymore.    Not every company uses the same mg/kg standard, so this hasbeen quite an odessy as it is, converting grams, pounds etc. tokilograms.  So, the actual amounts may vary slightly, but you can get anidea where each manufacturer is coming from.

Brand Name Millegrams of Copper Per Kilogram of Food
• PEDIGREE - Mealtime 6.0 mg/kg
• NUTRO NATURAL CHOICE - Adult Lamb & Rice 6.00 mg/kg
• PEDIGREE - Lamb and Rice 7.9 mg/kg
• BLUE SEAL - Lamb & Rice 8.5 mg/kg
• PRECISE - Sensicare Formula 8.95 mg/kg
• FLINT RIVER - Maintenance Adult 12.00 mg/kg
• PURINA - Dog Chow 13 mg/kg
• SCIENCE DIET - Lamb and Rice 13.7 mg/kg
• BILJAC - 14 mg/kg
• PROPLAN - Adult Chicken and Rice 15.7 mg/kg
• PREMIUM EDGE ADULT - 17 mg/kg
• SCIENCE DIET - Maintenance 17.1 mg/kg
  
• BLUE SEAL - Natural 26 24.2 mg/kg
  
• IAMS - Adult 29.20 mg/kg
• EUKANUBA - Lamb & Rice Adult 33.00 mg/kg (note zinc levels)(Three of their foods, Natural 26 among themhave been recently reformulated with higher levels of copper, zinc andmagnesium than in the past. The other three, Lamb & Rice among them,are going to be reformulated in the near future, probably with highercopper content also. This food is offered in New England, East Coast &Middle Atlantic States.)
• FROZEN BIL-JAC - 17.1 mg/kg
  Dess June

  

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