INTERVIEW FEED & ADDITIVE MAGAZINE February 2021 37 meal on the contrary is contact dried at high temperatures for a prolonged period of time, but this intensive way of drying damages the proteins and reduces protein digestibility within the animal. A recent conducted field trial in rainbow trout showed the apparent total tract digestibility of crude protein to be 94% with hemoglobin and 50% for blood meal. Hence, we may say that the way of processing has a big influence on protein digestibility and as a consequence protein evaluation and selection by nutritionists. Hemoglobin powder, also known as red cells, is often used as a highly digestible animal protein source in fish, shrimp, broiler and mink feeds. Especially fish and shrimp feed producers are actively looking for sustainable alternatives for fish meal with a similar high digestibility figures and hemoglobin powder meets these requirements. Within dairy cows, the use of hemoglobin powder has positive effects on the milk production and the fat and protein levels of the milk. In wet pet food, hemoglobin is a colourant and could for instance replace caramel. Plasma powder improves the feed palatability and gut health within young animals with positive effects on overall performance and mortality. Thanks to the presence of antibodies and other bio-active molecules, plasma powder is considered as an in-feed alternative to prophylactic antibiotics and zinc oxide. The main use of plasma powder will be in piglet starter diets facilitating profitable weaning. In sow diets, plasma may improve the farrowing rate and the average piglet weight at weaning. Thanks to the trend in the industry to reduce antibiotics, we also notice worldwide an increased interest and use of plasma powder in fish, shrimp and poultry starter feeds. Outside the European Union, plasma powder is included in calve milk replacers for calves that have not received adequate colostrum. Besides the health promoting properties, plasma is also known as an irreversible gelling agent improving the chunk texture and overall palatability in wet pet food. Globin powder is our patented oil-in-water emulsifier that improves the fat digestibility and thus energy efficiency in feed. In broilers, the primary limiting factor of fat digestion is insufficient production of bile salts. Hence, optimal utilization of broiler feed requires a dietary emulsifier like globin powder. Not only in broiler feeds, but also in piglet and shrimp diets our globin powder is added as an emulsifier. Egg powder is a very interesting natural ingredient as it combines different functionalities. First of all egg powder supplies dietary essential nutrients like amino acids, polyunsaturated fatty acids and vitamins A, D and choline. Besides its nutritional value, egg powder is also a rich source of bio-active components that can promote animal health and well-being. Finally, egg powder is also a technical aid in pet food and feed production thanks to its emulsifying and gelation properties. The biggest market for egg powder is pet food, but we notice an increased use of egg powder in piglet starter feed thanks to the benefits for piglet health. Do all the products you produce consist of protein of animal origin? What is the prevalence of use of animal-derived proteins in feeds? The VEOS Group only produces proteins of animal origin. Our egg powder is obviously produced from poultry origin. In our blood product facilities, we have dedicated production lines for both bovine blood products and porcine blood products. There is no cross
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