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مجله اپیدمیولوژی ایران, 2021 Background and Objectives: The commercial layer chicken farming is one of the most important sectors of the poultry industry. This study was conducted to evaluate the status of biosecurity of commercial layer chicken farms in 9 Iranian provinces with the
MH Rabiee +5 more
doaj
Genetic and microbiome analysis of feed efficiency in laying hens
Poultry Science, 2023 : Improving feed efficiency is an important target for poultry breeding. Feed efficiency is affected by host genetics and the gut microbiota, but many of the mechanisms remain elusive in laying hens, especially in the late laying period.
Qianqian Zhou +10 more
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Impact of growth trajectory on sexual maturation in layer chickens
Frontiers in Physiology, 2023 Recent studies showed that apart from photostimulation, metabolic triggers may independently activate sexual maturation and egg production in chickens. However, the origin, mode of action, and specific target(s) of this metabolic control remain unknown. Beyond body weight (BW), we hypothesize that body composition (BC) and associated specific metabolic
Mohammad A. Bahry +5 more
openaire +3 more sources
Viruses, 2018 A disease with a sudden drop in egg production and shell-less eggs called, shell-less egg syndrome (SES) has been observed in Western Canada egg layer flocks since 2010. The etiology of this disease is not known.
Aruna Amarasinghe +8 more
doaj +1 more source
Poultry Science, 2020 Plasmid-mediated quinolone resistance (PMQR) genes located on conjugative plasmids can be transferred to other bacteria in the absence of antimicrobial selective pressure.
Shoki Koyama +2 more
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, 2020 The aim of this study was to determine an infectious bronchitis (IB) infection, caused by an Israel variant 2 (IS/1494/06)-like IBV, in a layer chicken flock regularly vaccinated with vaccines containing IBV H120 and 4/91 strains.
H. Öngör +6 more
semanticscholar +1 more source
Journal of Applied Poultry Research, 2020 Summary: In ovo administration of a live-attenuated F-strain Mycoplasma gallisepticum vaccine (FMG) has proven to be a promising alternative vaccination route for layer chickens to combat M. gallisepticum (MG) infections. Its practical application within
K.E.C. Elliott +3 more
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Frontiers in Veterinary Science, 2020 Substitution of feed protein source with defatted black soldier fly larvae meal (BSFM) has been evaluated intensively in poultry, but information about full-fatted BSFM is still very limited.
Xiaohua Chu +6 more
doaj +1 more source
PLoS ONE, 2018 This paper describes the level of adoption of biosecurity practices performed on Australian commercial chicken meat and layer farms and farmer-perceived importance of these practices.
Angela Bullanday Scott +8 more
doaj +1 more source
The Effect of Natural Aromatase Blocker on the Growth Comb and Body Weight of Layer Chicken [PDF]
BIO Web of Conferences, 2022 The aim of this research is to evaluate the effect of Anadara granosa shell powder as a natural aromatase blocker (NAB) and zinc sulfate (ZnSO4) on the growth of the length comb, width comb, and body weight (BW) of layer chicken.
Fitrawan Yuneldi Rizki +3 more
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