Results 71 to 80 of about 92,373 (234)

A portrait of air quality in Canadian hatching egg houses: Seasonal variations and health impacts on workers and broiler breeder birds

open access: yesJournal of Applied Poultry Research
Summary: Air quality in poultry barns affects the respiratory health of both workers and animals. While data exist for broiler and laying hen operations, broiler breeder facilities are less studied.
Valérie Létourneau   +7 more
doaj   +1 more source

Comparative Analysis of Salmonella typhimurium‐Induced Transcriptomic Changes in the Spleen of Beijing‐You Chickens and Guang Ming Broilers

open access: yesAnimal Research and One Health, EarlyView.
This study analyzed the spleen transcriptomes of different chicken breeds, identified key differentially expressed genes (EGR1, FOS, and DUSP1) that regulate resistance to Salmonella infection, and elucidated the underlying regulatory mechanisms, thereby providing new targets for disease‐resistant breeding in poultry.
Zixuan Wang   +8 more
wiley   +1 more source

Effects of an Organic Acid Blend on Growth Performance, Redox Homeostasis, and Intestinal Microbiota of Broilers in an Antibiotic‐Free Production System Under Winter Environmental Challenges

open access: yesAnimal Research and One Health, EarlyView.
Schematic summary of the effects of organic acids on growth performance and gut health‐related parameters in broilers. ABSTRACT This study was conducted to evaluate the effects of an organic acid blend on growth performance, redox homeostasis, and intestinal microbiota of broilers raised in an antibiotic‐free system during the winter season in China ...
Rong‐Hui Huang   +11 more
wiley   +1 more source

Perinatal development and nutrient utilization in chickens : effects of incubation conditions [PDF]

open access: yes, 2010
Suboptimal incubation conditions can negatively affect survival and development of chicken embryos. However, physiological mechanisms that may explain these effects, and the long-lasting consequences are largely unknown.
Molenaar, R.
core  

Comparison of the Ability of Different Types of Birds to Derive Energy from Corn and Soybean Meal [PDF]

open access: yesPoultry Science Journal
This study evaluated the ability of different types of birds to derive energy from corn and soybean meal (SBM) using the reference diet substitution method. The corn and SBM were combined into a reference diet at 60 and 30%, respectively.
Nahid Zahroojian   +3 more
doaj   +1 more source

Exploring the Role of Competitiveness in Sustainability Standards: Insights From an Animal Welfare Scheme Adopted by Supermarkets

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Research on supermarket‐related voluntary sustainability standards (VSSs) is divided on whether competition helps or hinders efforts to reduce negative social and environmental impacts. This paper examines how the standardization process shapes these outcomes.
Frits Kremer   +3 more
wiley   +1 more source

Age and body weight as determinants of semen quality and sperm motility in Ross 308 broiler breeder males

open access: yes
Rooster fertility has a considerable impact on reproductive efficiency in broiler breeder management, with semen quality being an important factor in fertilization success. This study evaluated the effects of age and body weight on semen quality measures
Candyrine, Su Chui Len   +9 more
core   +1 more source

Options for dust reduction from poultry houses [PDF]

open access: yes, 2009
Large poultry houses emit high amounts of fine dust (PM10) and in many cases they exceed the ambient air quality standard set by the EU. Technologies for PM10 reduction need to be developed on short term to minimize PM10 emissions from poultry houses ...
de Buisonjé, F.E.   +8 more
core  

Prevalence and Characteristics of Salmonella spp. by Production Stage in Integrated Broiler Operations in Korea

open access: yesVeterinary Medicine and Science
Background Vertically integrated broiler production systems enable efficient poultry production but may facilitate the dissemination of Salmonella throughout the production chain.
Hyeong Jeong Choi, Young Ju Lee
doaj   +1 more source

Characteristics of linezolid-resistant Enterococcus faecalis isolates from broiler breeder farms

open access: yesPoultry Science, 2020
Linezolid is an oxazolidinone class antibiotic used for treatment infections caused by various multidrug-resistant gram-positive pathogens including enterococci.
Sunghyun Yoon   +5 more
doaj   +1 more source

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