Multilocus Sequence Typing of in Commercial Broiler Flocks.

About 35% of all broiler flocks in the United States receive an anticoccidial vaccine, but it is not possible to easily differentiate vaccine strains from field isolates. Being able to do that would allow using vaccines in a more targeted way. The objective of this study was to collect isolates from broiler flocks that received anticoccidial feed additives and flocks that had been vaccinated against coccidia and then test them with a multilocus sequencing typing (MLST) scheme developed for this study.

Prevalence of Select Intestinal Parasites in Alabama Backyard Poultry Flocks.

Keeping chickens as backyard pets has become increasingly popular in the United States in recent years. However, biosecurity is generally low in backyard flocks. As a consequence, they can serve as reservoirs for various pathogens that pose a risk for commercial poultry or human health.

Network meta-analysis comparing the effectiveness of anticoccidial drugs and anticoccidial vaccination in broiler chickens.

With the trend to organic production and concerns about using antibiotic feed additives, the control of infections with Eimeria spp. in broiler flocks has become more difficult. Vaccination against coccidia is an alternative, but there are concerns that the live vaccines used might have negative effects on production parameters and intestinal health.

Influence of spp. Infection on Chicken Jejunal Microbiota and the Efficacy of Two Alternative Products Against the Infection.

spp. are important intestinal pathogens of chickens (). Anticoccidial feed additives, chemicals, and ionophores have traditionally been used to control infections in broiler production.

Evaluation of Next-Generation Amplicon Sequencing to Identify spp. of Chickens.

Identifying spp. circulating in a poultry flock assists in designing vaccine preventive programs, as different species do not cross-protect. Because species differ in anticoccidial drug susceptibility, species identification can also be used to optimize anticoccidial medication.