Limited Emergence of Serovar Infantis Variants with Reduced Phage Susceptibility in PhagoVet-Treated Broilers.

serovar Infantis (. Infantis) poses a growing issue in the poultry sector, with phage-based products emerging as a safe and effective control measure. This study investigated the emergence of reduced-phage-susceptibility variants (RPSV) of .

Incidence and associated risk factors of necrotic enteritis in Belgian layer pullet flocks.

Necrotic enteritis (NE) caused by is commonly reported in broilers. Recently, increased NE prevalence in layer breeds was reported in the Indian subcontinent. NE is also frequently observed by veterinary practitioners in Europe, mainly during the pullet rearing phase.

Host intestinal biomarker identification in a gut leakage model in broilers.

Intestinal health problems are a major issue in the poultry industry. Quantifiable easy-to-measure biomarkers for intestinal health would be of great value to monitor subclinical intestinal entities that cause performance problems and to evaluate control methods for intestinal health. The aim of the study was to identify host protein biomarkers for intestinal inflammation and intestinal barrier damage.

Elevated faecal ovotransferrin concentrations are indicative for intestinal barrier failure in broiler chickens.

Intestinal health is critically important for the welfare and performance of poultry. Enteric diseases that cause gut barrier failure result in high economic losses. Up till now there is no reliable faecal marker to measure gut barrier failure under field conditions.

Timing of predisposing factors is important in necrotic enteritis models.

Since the ban of antimicrobial growth promotors, the importance of necrotic enteritis in broilers increases. Reliable and reproducible infection models are required for pathogenesis studies and product screening. Two major predisposing factors in necrotic enteritis models are fishmeal supplementation to feed and Eimeria infection.

Passive immunization against Histomonas meleagridis does not protect turkeys from an experimental infection.

Histomonosis or blackhead is a disease of gallinaceous birds, caused by the protozoan Histomonas meleagridis. As recent regulatory action has removed almost all drugs against this disease from the European market, the development of new prophylactics has become crucial. Identification of the protective immune mechanism would facilitate the choice and development of a vaccination strategy to prevent histomonosis.