Colonization of the Gastrointestinal Tract of Chicks with Different Bacterial Microbiota Profiles

This study aimed to investigate the consequences of early-life microbiota transplantation using different caecal content sources in broiler chicks. We hypothesized that chicks receiving at-hatch from organic hens would harbour a distinct industry-raised after six weeks age. Three hundred Cobb broilers eggs were randomly assigned one four groups according received: laying (Organic); autoclaved (Autoclaved); conventionally grown (Conventional); and sterile saline (Control). was given by gavage on day 1. Ten birds/group euthanized days 2, 7, 14, 28, 42. The tonsils contents collected for cytokines analyses. live inocula resembled donors’ seven until composition chickens who received Organic inoculum remained markedly different. Starting group had higher richness. Simpson Shannon’s indices Conventional 2 7. Chickens presented production IL-1β IL-6 plasma increased expression at 7 42, IL-12 However, infected with Eimeria spp., which likely caused inflammation. In conclusion, profiles persistently colonized newly hatched Future studies evaluating importance during infections common enteropathogens are necessary. also highlights need strict screening protocol pathogens intestinal content.