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Spray-dried plasma included in the formulation allows for higher meat inclusion in diets
Increasing fresh meat inclusion in dry kibble can be challenging. When extruding, variation of moisture and fat of the incoming raw meat ingredient adds to the complexity of producing quality kibbles. As fresh meat feed rates are increased, the ability to extrude quality kibble may be impacted depending on the matrix. Spray-dried plasma (SDP) has historically been used in wet pet foods to increase water holding, binding, and fat emulsification properties to maintain quality products. APC and testing partners, Wenger, conducted studies to see if meat inclusion levels could be increased in extruded grain and grain-free kibble formulas by using SDP for both dogs and cats.
Increasing fresh meat inclusion in dry kibble can be challenging. When extruding, variation of moisture and fat of the incoming raw meat ingredient adds to the complexity of producing quality kibbles. As fresh meat feed rates are increased, the ability to extrude quality kibble may be impacted depending on the matrix. Spray-dried plasma (SDP) has historically been used in wet pet foods to increase water holding, binding, and fat emulsification properties to maintain quality products. APC and testing partners, Wenger, conducted studies to see if meat inclusion levels could be increased in extruded grain and grain-free kibble formulas by using SDP for both dogs and cats.
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.
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
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About company
About company
Our history dates back more than 35 years, when our scientists discovered the powerful role that functional plasma-derived proteins play in maintaining the immune function of animals.
Since then, we have obtained extraordinary, consistent and effective results.
Spray-dried plasma (SDP) and red blood cell products are used in animal feed and other industries to add value through their unique properties that positively impact billions of animals each year.
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11/04/2025
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