Footpad dermatitis causes significant foot problems for broilers, which adversely affects bird welfare and the market for broiler paws, according to research from the...
The US egg industry is in the process of transitioning to cage-free egg production, but many questions remain about the best practices and facilities for these types of...
Inexpensive game cameras installed on turkey farms can reveal important biosecurity information, but it comes with some caveats, according to researchers at the...
Poultry veterinarians should not get hung up on the level of plaque-forming units (PFUs) to determine the strength of recombinant Marek’s vaccines, according to...
Integrated broiler producers in Europe pose a risk of transmitting and maintaining clones of Salmonella throughout the production chain, according to researchers in...
Extended day length during the brooding period is thought to benefit broilers’ long-term performance and well-being. However, a University of Georgia study has...
Research at the University of Arkansas suggests broiler breed could affect birds’ immune response to Salmonella exposure, according to Shawna Weimer, PhD, director of...
DISCOVERIES: Marek’s disease (MD) vaccination programs for breeders and layers can vary significantly in the replication and coverage they provide, a finding that...
It’s imperative for poultry producers and companies to know what strains of Salmonella may be circulating in their flocks, said Chuck Hofacre, president of the...
Feed conversion takes a bigger hit in birds with higher Salmonella exposure, while Salmonella Reading outlasts other serotypes through the grow-out period, suggests new...
New challenge studies have highlighted the best vaccine serotype combinations to tackle the DMV/1639 strain of infectious bronchitis virus (IBV), which has spread from...
New research shows that using a modified-live Salmonella Typhimurium (ST) vaccine helps protect broilers against Salmonella Infantis, the most commonly-isolated...
Researchers at The Pirbright Institute in the UK report that a recent study provides evidence that mutations in the genetic code for non-structural proteins “offer a...
The use of recombinant vaccines can prove a valuable strategy against coccidiosis in poultry, but better understanding of host-parasite interactions and gut...
Birds can move out of the reach of the workers’ hands in a multi-tier aviary system, so employees have to climb into the system to get to them. Researchers from...
Immune responses to Salmonella infection are complex, but vaccination has become a key component of multi-step control programs. A new review of evidence to date...
TOOLBOX, Issue 32: An interview with Kalen Cookson, DVM, Director of Clinical Research, Zoetis about the new recombinant vector vaccine, Poulvac Procerta HVT-IBD-ND.
New research has given scientists a greater understanding of the Marek’s disease virus (MDV) that could lead to new strategies for managing the widespread,...
TOOLBOX: An interview with Henrik Christensen, PhD, DVSc, University of Copenhagen, on the effect of Poulvac E. coli on bird health, laying performance and hatching...
Live vaccines for Salmonella have been found to start offering protection within a few days of administration, acting “almost as a [form of] competitive exclusion,”...
TOOLBOX, Issue 31: An interview with John Brown, DVM, senior technical services veterinarian, Zoetis, on the advantages of using Poulvac Procerta HVT-IBD to protect...
A whole-complex study of broiler breeders in Georgia found underwhelming infectious bronchitis vaccine performance – but with better surveillance and protocols,...
Making use of polymerase chain reaction (PCR) testing on chicken farms can help tackle the problem of antibiotic overuse against mycoplasmosis in countries where this...
Adding a modified-live vaccine (MLV) to recombinant vaccine programs against three important viral pathogens in poultry production can have a positive impact on...
TOOLBOX, Issue 34: An interview with Eduardo Muniz, DVM, Zoetis on research comparing conventional vaccine programs versus new protocols with vectored vaccines.
A modified-live E. coli vaccine helps reduce E. coli counts in broiler chickens and turkeys and can significantly increase susceptibility to commonly used antibiotics,...
Vaccinating turkeys against colibacillosis with the modified-live E. coli vaccine has economic and animal welfare benefits, according to a retrospective, 4-year study...
Vaccination might be effective in controlling ILT in broilers, but recombinant vaccines might not always provide an adequate immune response, according to scientists at...
Broiler chickens exposed to infectious bursal disease virus are likely to develop more severe cases of the bacterial disease, necrotic enteritis, researchers in Canada...
The timing of infectious bronchitis virus (IBV) challenge in layers can impact the development of cysts associated with false layer syndrome, scientists at the...
DISCOVERIES, Issue 13: A recent study found that administering a live Escherichia coli vaccine by spray produced marked, consistent changes in the intestinal microbiota...
Starter feed of larger particles consumed by young chicks is associated with better performance during the lifetime of broiler birds, according to a study conducted at...
New research has suggested that Salmonella levels in no-antibiotics-ever (NAE) poultry systems could be lower than those on conventional broiler farms.
Research is increasingly linking false layer syndrome to early exposure to infectious bronchitis virus. The condition prevents laying hens from producing eggs, but...
Researchers from North Carolina State University have found that when a particular strain of Enterococcus is found alongside E. coli in cases of avian colibacillosis,...
The AL-2 family of variants is the predominant strain of infectious bursal disease virus (IBDV) circulating among US broiler flocks, according to a recent survey.
New research from Austria provides key regional insights into Salmonella Infantis, a foodborne pathogen that is closely linked with broiler farms and often resistant to...
US poultry producers dramatically decreased their use of medically important antimicrobials over a 5-year period ending in 2017, according to a new report released by...
Scientists in the UK have discovered a way to modify a Marek’s disease vaccination so that it could be potentially be used to protect against a number of significant...
New research by Callie McQuain, DVM, veterinarian and grad student at the University of Georgia, substantiates anecdotal field experience indicating that Eimeria maxima...
Eimeria maxima in broilers vaccinated against coccidiosis appears to be an important cause of mortality, according to the preliminary results of a study presented at...
A modified-live Escherichia coli vaccine for turkeys was demonstrated to be safe and effectively reduced the incidence of lesions and mortality due to colibacillosis,...
Early feeding after hatch and the housing type can affect the response of broilers to immune challenges later in life, indicates a study from the Netherlands.
Proponents of raising broilers without ionophores and other antibiotics have proposed putting more emphasis on farm management, biosecurity and alternatives to...
Hens in an enriched colony system were more stressed and flighty than conventionally caged birds in a study from Mississippi State and Texas A&M Universities.
Fecal shedding of Salmonella enteritidis was significantly more frequent among experimentally infected laying hens in conventional cages compared to hens housed in...
Broilers raised in a drug-free program had a higher feed-conversion ratio (FCR), decreased mean daily weight and decreased mean live marketing weight despite...
A live infectious bursal disease (IBD) vaccine based on the V877 strain can override maternal antibodies, doesn’t revert to virulence and has limited interactions...
One of the few studies about antibiotic resistance and ionophores in poultry was published by Canadian researchers in 2007 who found that isolates showing resistance to...
High stocking density has adverse effects on broiler welfare and intestinal health and predisposes the birds to necrotic enteritis (NE), according to the results of an...
A condition known as “woody breast” is puzzling US poultry scientists investigating why breast-muscle tissue from some broiler flocks is hard and tough instead of...
Experience with Georgia 2008 (GA 08) — the infectious bronchitis variant that’s caused major economic losses for poultry producers in the Southeast — has provided...
Bacterial resistance is developing quickly and many critically important drugs risk becoming obsolete. Disastrous consequences lie in wait therefore unless these drugs...
A recent study showed that broiler chicks receiving higher reovirus antibody levels from conventionally vaccinated hens had a lower incidence of tendon swelling and...
A new study in Belgium has revealed a strain of Salmonella Enteritidis which showed some promise to help reduce food-borne infections when given to chicks in the...
From a poultry processing viewpoint, Campylobacter presence in circulating blood of market-age broilers may increase the likelihood of cross-contamination between birds...
Mark Jackwood, PhD, University of Georgia talks about the recent Southern Conference of Avian Diseases (SCAD) and its significance to the poultry industry.
A team of Iowa State University (ISU) Extension and Outreach specialists have developed an online tool to help livestock and poultry producers compare odor mitigation...
A series of experiments at the University of Delaware show that frequent application of sodium bisulphate improved broiler production performance and foot pad quality...
Sericea lespedeza (SL), a warm-season legume shown to help control coccidiosis in lambs, had no anticoccidial activity in chickens, according to a study conducted at...
Recent studies on two continents have demonstrated that a modified-live vaccine reduced losses from Escherichia coli in broilers, even when the disease challenge was...
Following the April 2014 World Health Organization (WHO) report warning of a “post-antibiotic era,” Current Biology published the findings of a new study on May 19,...
Commercial broilers that received a bacitracin-supplemented diet had less Clostridium perfringens in their gut, according to researchers at Ohio State University.
Diagnosing clostridial enteric disease in poultry remains a challenge — primarily because many clostridial species can be a normal inhabitant of the gut, which makes...
One dose of the live, attenuated vaccine Poulvac® IBMM+Ark effectively protected broilers against two infectious bronchitis (IB) strains for at least 9 weeks, a recent...
With animal welfare and the environmental aspects of food animal farming gaining more attention from the public and high feed prices focusing efforts on getting the...
