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Sustainable livestock production embraces a broad concept of balancing environmental, economic and societal aspects of meeting
the growing global food demand on the long run. Matching dietary nutrient levels to the animal�??s requirements and use of
ingredients that maximize bioavailability reduce both the upstream and downstream environmental cost of meat production. To
this aspect, properly processed blood products can correct amino acid deficiencies in vegetable-based proteins. Their high protein
digestibility and low phosphorus content further reduce nitrogen and phosphorus load in manure. Yet, not withstanding its
nutritional value, the main benefit of dietary animal plasma is likely its content in bio-active glycoproteins. Immunoglobins and other
plasma glycoproteins improve gut health through which feed efficiency is improved and antibiotics use can be reduced. The latter
is of paramount importance seen the emergence of bacteria that become increasingly ever more resistant to antibiotic treatment.
Restrictions on antibiotics use in farm-animals are thus obviously necessary for the long run. Regrettably, this may have a negative
impact on animal welfare and productivity on the short run. Therefore, efficient alternatives are crucial. Currently in Europe, nonruminant
blood products are only allowed in mono-gastric food-producing animals. Hemoglobin is primarily used in fish farming
where it can partially replace fishmeal. Besides fishmeal being a limited natural resource, its carbon footprint per kg protein is 44% to
74% higher compared to hemoglobin. Spray-dried plasma is primarily used in milk replacers and early post-weaning piglet diets as
natural alternative to milk-borne functional glycoproteins and as a high-quality protein source.
Biography
Kalmar I D holds a degree in Veterinary Medicine and in laboratory Animal Sciences. She completed a PhD in Veterinary Medicine on the topic of nutrition and
feeding behavior of pet birds, and performed Postdoctoral studies in immunology at Ghent University. She completed a second PhD in the field of nutrition related
metabolic diseases in broilers, obtained at the department of Animal Sciences of Wageningen University. She is the senior veterinary scientist at VEOS group, a
producer of animal-based food and feed ingredients with focus on plasma proteins. She has published over 30 papers in reputable journals.
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