ARTICLE FEED & ADDITIVE MAGAZINE August 2022 65 About Diego Parra Diego Parra, Technical Manager EMEA at AB Vista, is responsible for some of the Mediterranean countries in Europe such as Spain, Portugal, Italy, Turkey and Switzerland. Diego was born and raised in Spain where he studied veterinary science at Complutense University in Madrid. Besides, he holds a master of science and a master of business administration. Also, he has already started a PhD in agricultural engineering with a focus on animal nutrition. He has 6 years of practical experience in the feed and poultry field, mainly, managing feed mills and farms, before joining AB Vista 3 years ago. advised to employ a full matrix, based on mineral, energy, and amino acids rather than only the mineral values (Graph 4). All of these recommendations are supported by validation trials and a good knowledge behind the products, which make the matrices proposed robust and secure to be used safely. The recommendations for these higher levels were based upon a holo-analysis data set where confidence limits were included, providing additional safety margins for nutrient releases. Data using Quantum Blue phytase (AB Vista) supports the use of higher doses of phytase (1,000 to 2,000 FTU/kg). These data suggest that greater phytate degradation occurs, removing the antinutrient properties and also releasing more P. The animal response to phytases has been shown to be logarithmic. Therefore, as feed prices and thus the value of increased animal productivity increase (as they have done in the past years), it is more economically attractive to dose phytase at a higher level. However, as the dose response curve is not linear, the formulator needs to ensure that the appropriate matrix values are assigned to phytase when the inclusion rate varies. The higher dosage phytase application with maximum use of nutrient matrix values is a novel and cost-effective tool in poultry and swine diets that improves environmental and financial sustainability and may be a cost advantage solution especially given the current prices of ingredients.
RkJQdWJsaXNoZXIy MTUxNjkxNQ==