Spray-dried plasma included in the formulation allows for higher meat inclusion in diets

Several initial tests were completed to prove the concept. The dry blend feed rate was established, and adjustments in fresh meat and SDP feed rates to the dry blend feed rate were evaluated initially with a twin-screw extruder. Limits were determined by the extruder inability to continue the production of kibble. Feed rate ranges from 2.5 to 20% SDP and 25-50% fresh meat were evaluated. With initial concept testing, SDP feed rates from 2.5 to 20% allowed for increased fresh meat feed rates to 45-50% depending on the feed rate of SDP and formulation type.

Follow-up evaluation tests were completed formulating SDP into the dry blend with the least cost formulation. These formulas were evaluated on both single and twin-screw extruders. Targets of 2.5 and 5.0% SDP in the final kibble were formulated into the dry blend in both grain-free and grain formulas. Ranges of meat feed rates from 25 to 45% were again evaluated. Overall, the addition of plasma in the dry blend formula allows formulators to increase meat levels while improving kibble durability and palatability, all while increasing meat inclusion levels.

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REVIEWING KEY RESULTS

INCLUSION RATES & DURABILITY / SINGLE SCREW EXTRUSION WITH GRAIN-FREE FORMULA

35% MEAT CONTROL VS. 2.5% AP 920/35% MEAT

CONCLUSIONS

• Plasma included in the formulation allows higher meat inclusion in diets.

• Cook and Durability are maintained or improved.

• Palatability was improved in both cat and dog kibbles.

By: Dr. Joy Campbell, Senior Director of Global Pet Food Technical Service, APC

Source: All Pet Food Magazine