Ingredients aa additives advancia advancia 2018 advancia academy age agp amino acids antibiotic reduction antibiotics antinutritional factors antioxidants arabinoxylans bacteria balance biomarkers birds broilers butyrate caecum challenges changes chickens conference cows dairy cows diet dietary fibers diets digestibility digestible digestion diseases don efficiency energia líquida energy environment enzymes ergot espn 2019 eu europe fat feed feed intake feedstuffs fibers fibres formulating formulation functions gastro-intestinal tract genes genetic selection genetics git growth gut health health heat stress heterogeneity human health ihsig immune response immune system immunity immunology inflammation interactions interview intestinal health intestine intestines introduction layers laying hens lys lysine me measurement meat defects meat quality mechanisms met metabolism metabolites metabolizable methionine microbiome microbiota milk yield models mucin mucosa myopathies myopathy ne net energy nitrogen nsp nspase nutrients nutrition nutritive values oxidation oxidative stress p pathogens pathways performance phosphorus phytate piglets pigs portuguese poultry prebiotics probiotics production proteins q&a quality questions raw materials redox regulation requirements ros roundtable se selection selenium selenoproteins sev short chain fatty acids short educational videos short educational videos on net energy sow sows substrates subtitles supplementation sustainability swine tight junctions variability webinar zea