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Poultry Science Association
Ways to depopulate layer flocks with better bird, worker outcomes

Commercial egg-laying operations can benefit from more effective and economical ways to depopulate flocks at the end-of-lay while improving worker performance and maintaining or improving animal welfare.

Category: Poultry Science Association

Heat stress may cause lung injury in broiler chickens

Prolonged exposure to heat stress can lead to respiratory injury in broiler chickens, according to a recent study in China.

More from Poultry Science Association

Layer chick well-being unaffected by changing transport stocking density, in absence of other stressors

Without other stressors to skew results, altering stocking density (SD) within common ranges does not affect the well-being of layer chicks being transported from hatcheries to pullet-rearing operations.

Feeding olive co-products supports broiler performance

Feeding olive oil byproducts such as olive pulp and olive pomace to broilers can improve several growth performance parameters, including nutrient digestibility, feed efficiency and growth, according to a review article published recently in Poultry Science.

Emergency depopulation with steam shows promise in recent study

Steam or steam plus forced air heat may become an approved method to supplement ventilation shutdown during emergency depopulation of cage-free aviary laying operations, according to researchers at Michigan State University and the University of Arkansas.

Hatching broilers on-farm may improve efficiency, welfare

On-farm hatching of broilers may be a viable option to increase efficiency by increasing hatchability and reducing total mortality during rearing, according to scientists in Denmark.

Dustbathing environment may influence immune status of laying hens

Newer systems for laying hens provide more space for them to express natural behaviors such as scratching, pecking and dustbathing, which could have some biological benefits.

Poultry scientists get fuller picture of PM effects in different housing systems

Poultry scientists are working to better understand the impacts of particulate matter (PM) on bird health and production.

Poultry scientists test promising avian flu vaccination strategies

Avian influenza outbreaks in the US are rare but, when the virus strikes, the results are devastating. The disease spreads rapidly, forcing producers to rely on quarantine-and-cull to limit the damage. A 2015 outbreak in the US led to an estimated loss of more than 48 million birds.

Ways to depopulate layer flocks with better bird, worker outcomes

Commercial egg-laying operations can benefit from more effective and economical ways to depopulate flocks at the end-of-lay while improving worker performance and maintaining or improving animal welfare.

Study looks at effects of eucalyptus supplement on heat-stressed Japanese quail

Researchers from Egypt and Saudi Arabia conducted a study to determine if adding eucalyptus (EL) powder as a dietary supplementation would have an effect on productive performance and immune response in two varieties of Japanese quail.

Scientists call for revisions to EPA’s broiler-emissions models

The US Environmental Protection Agency (EPA) wants to use updated computerized models to guide regulation of air pollution by animal feeding operations, including broiler chicken farms.

Mapping histomoniasis outbreaks reveals increased risk of housing chickens within 1 mile of turkey flocks

Preventing disease transmission between flocks is a major goal of the poultry industry. One threat to bird health is the protozoan Histomonas meleagridis, which causes a disease called histomoniasis.

New study shows brain size is smaller in commercially bred laying hens

When humans domesticate and breed an animal, they tend to select for a very specific trait. In laying hens, artificial selection for high egg production has led to hens that can produce 320 eggs a year. But could artificial selection have unintentionally altered hen brain morphology?

Poultry scientists: Few hours of darkness a day does not harm broiler chicks

Broiler chicks can be provided between 1 to 4 hours of darkness a day without negative consequences, according to a recent study.

Do minerals and vitamin C affect performance of heat-stressed broilers?

Researchers from Spain and the Netherlands performed a study to determine if adding a mineral and vitamin mix (AHS and Vitamin C) would have an effect on broiler performance in heat-stressed conditions.

Poultry scientists investigate microbial presence in low, high stocking densities for free-range layers

As consumer demand for eggs from free-range chickens grows, a big question lingers: what is the best stocking density for chickens in free-range conditions?

Pekin duck research reveals heritability of feeding behaviors

A new study published in Poultry Science shows that body weight, residual feed intake and feeding behavior traits are all highly heritable traits in Pekin ducks.

Broiler diets low in crude protein may get boost from individual nonessential amino acid supplementation

A new study led by poultry scientists at the University of Hohenheim suggests it is possible to reduce crude protein in broiler diets while still encouraging bird growth.

Poultry researchers: There’s no safe amount of moldy corn for laying hens

Poultry scientists are taking a close look at moldy corn in an effort to better protect animal and human health.

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Poultry Science Association
Ways to depopulate layer flocks with better bird, worker outcomes

Commercial egg-laying operations can benefit from more effective and economical ways to depopulate flocks at the end-of-lay while improving worker performance and maintaining or improving animal welfare.

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