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Poultry nutrition: Interview with Dr. Ana Isabel García Ruiz and Dr. Wilfredo Mansilla

Poultry nutrition: Interview with Dr. Ana Isabel García Ruiz and Dr. Wilfredo Mansilla
Dr. Edgar Oviedo collaborator and co corresponding author for nutriNews International had the opportunity to speak with Dr. Ana Isabel García Ruiz Director of the Trouw Nutrition Poultry Research Center in Toledo Spain, and Dr. Wilfredo Mansilla a poultry researcher at this same center. This interview took place during the 7th EAAP International Symposium on Energy and Protein Metabolism and Nutrition (ISEP 2022) held in Granada (Spain) from September 12-15, 2022.
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Dr. Edgar Oviedo: We are here at the 7th EAAP International Symposium on Energy and Protein Metabolism and Nutrition (ISEP 2022) with Dr. Ana Isabel García Ruiz Director of the Trouw Nutrition Poultry Research Center in Toledo Spain, and Dr. Wilfredo Mansilla a poultry researcher from this same center. Dr. Ana Isabel could you tell a little bit about the research that you are conducting right now at your center? Dr. Ana Isabel: Thank you Edgar. Within our center, the main research areas are related to animal feed development. We work hard with laying hens and broilers, as well as having  a strong focus on precision feeding where we are working on Nitrogen and Phosphorus efficiency for broilers and laying hens. However, in regards to laying hens we are mainly focused on layer persistency and egg shell quality which are big points of interest for our markets. Dr. Edgar Oviedo: Wilfredo according to your presentation here at ISEP, your work focuses on reducing crude protein while using crystalline amino acids to have a better balance. Could you tell us a little more about your research? Dr. Wilfredo Mansilla: Sure Edgar, so this project focuses on improving nitrogen efficiency while reducing nitrogen excretion through a reduction in crude protein. Yet keeping a balance of essential amino acids and even non-essential amino acids like Glycine and Serine. In this study we found that we can reduce the crude protein content until the weight average crude protein value of the diet was 18.5% without affecting the performance of birds. In fact, we saw that it could even improve performance, as we saw an interesting result where feed intake was increased when we reduced crude protein content in the diet. On top of that we also focused on including Glycine and Serine in the diets of very young broilers where we saw that feed efficiency can be significantly improved when including Glycine, but only in very early stages. Then when the broiler grows the ingredients that naturally make up the diet have sufficient glycine levels to support their growth. Dr. Edgar Oviedo: Thank you Wilfredo. I understand that you are carrying out some projects that not only look into nitrogen efficiency but you are also looking into phosphorus efficiency. Is that right? Could you slightly mention what are the perspectives on that project? Read full interview here  

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