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Custom Research Diets > QualityManufacturingMost research diets diets are available in two forms, powder or pellet, with some exceptions when only powder is available. To pellet diets, deionized water is added to the mix, the mix is pelleted, and then the pellets are dried in a vacuum oven for a length of time necessary to remove the added water. Air-drying (no added heat) might also be an option that can be discussed with technical services. Quality Assurance Each formula is given a unique identification number and retains that identity among the thousands of formulas in our files. This assures the same formula can be used even years later. Most Harlan Teklad product codes begin with "TD" followed by a five digit number, the first two digits being the year of origin. Some older formulas begin with "CA" followed by a six digit number. All phases of diet production are controlled closely. Detailed production records and quality-control samples are maintained for every item produced. Each lot of the major protein ingredients is analyzed for a number of nutrients to verify uniformity from lot to lot. |
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