The active core microbiota of two high-yielding laying hen breeds fed with different levels of calcium and phosphorus

• DOI: 10.3389/fphys.2022.951350
• Publication Date: 2022-09-23T12:53:18Z
• Authors: Christoph Roth; Tanja Sims; Markus Rodehutscord; Jana Seifert; Amélia Camarinha-...
• Keywords: Phytase; Lactobacillus salivarius; Gizzard

The nutrient availability and supplementation of dietary phosphorus (P) calcium (Ca) in avian feed, especially laying hens, plays a vital role phytase degradation mineral utilization during the phase. required concentration P Ca peaks phase, direct interaction between shrinks both supplements feed. Our goal was to characterize active microbiota entire gastrointestinal tract (GIT) (crop, gizzard, duodenum, ileum, caeca), including digesta- mucosa-associated communities two contrasting high-yielding breeds hens (Lohmann Brown Classic, LB; Lohmann LSL-Classic, LSL) under different levels. Statistical significances were observed for breed, GIT section, Ca, section x breed (p < 0.05). A core five species detected more than 97% all samples. They represented by an uncl. Lactobacillus (average relative abundance (av. abu.) 12.1%), helveticus abu. 10.8%), Megamonas funiformis 6.8%), Ligilactobacillus salivarius 4.5%), Fusicatenibacter 1.1%). findings indicated that levels 20% below recommendation have minor effect on compared strong impact bird's genetic background. Moreover, across hen revealed first time.