Six hours: Why the feed-deprivation clock impacts feed conversion, yield, food safety and profit
By Douglas L. Fulnechek, DVM
Public Health Veterinarian
GTS Health
By Douglas L. Fulnechek, DVM
Public Health Veterinarian
GTS Health
An innovation taking the broiler/breeder industry by storm is Comfort Nest™, a mechanical egg-laying system from VAL-CO that more than doubles the nest size to accommodate high-yield broiler-strain hens.
Can laser enrichment improve broiler health and marketability? Kayla Elmore, a graduate student at Iowa State University, conducted a study to investigate this question, following up on two previous studies that reported increased activity among broilers exposed to lasers.
Hatchery day-of-age vaccination has been a cornerstone of broiler health for decades, but new research is shedding light on the mechanisms that help it protect chicks despite the immaturity of their immune systems. The findings are significant because it is widely used throughout the poultry industry, yet relatively little is known about how newly hatched chicks develop protection following vaccination.
Broiler breeder fertility has been declining over the past decade, raising concerns about both productivity and the long-term sustainability of the industry. Marcela Quino, a graduate student at Auburn University, examined how time of day, rooster competition and behavior influence mating success and fertility during the early production period.
When faced with these emerging IBDV variant strains, it’s important to provide every chick the strongest possible immune start while keeping pace with a changing virus. Kalen Cookson, DVM, MAM, DAPVC, director of clinical research, Zoetis, provides vaccination strategies for poultry vets to consider.
By Zac Williams, PhD
Extension specialist – Poultry Husbandry and Management
University of Arkansas
The starter-phase duration for broiler breeders can affect their reproductive performance later, including development, fertility and hatchability, according to a study led by Edgar O. Oviedo-Rondón, DVM, MSc, PhD, Dipl. ACPV, North Carolina State University.
Chickens are highly motivated to peck, forage, and explore their environment. Providing opportunities for birds to express these motivated behaviors, is a key component of animal welfare, and edible enrichments can be an effective way to encourage engagement with the environment.
A university challenge study has examined how recombinant HVT-ILT vaccines used at the hatchery affect the response to live, chicken-embryo-origin ILT vaccines applied later as part of a dual infectious laryngotracheitis vaccination program.
Researchers at North Carolina State University evaluated the effects of housing systems and genetic strains on broiler mobility in slow-growing strains vs fast-growing strains in both indoor and outdoor environments.
The poultry industry has spent decades chasing infectious bronchitis virus, adjusting vaccination programs and developing new vaccines as new variants emerge. Yet despite those efforts, the cycle continues. However, Mark Jackwood, PhD, one of the world’s leading IBV researchers, says that’s not a sign that vaccination has failed. It’s simply the nature of the virus.
