Results 31 to 40 of about 852 (134)

Assessment of the feed additive consisting of lasalocid A sodium (Avatec® 150G) for turkeys, pheasants, guinea fowl, quails and partridges except laying birds thereof for the renewal of its authorisation (Zoetis Belgium SA)

EFSA Journal, Volume 24, Issue 8, August 2026.
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of lasalocid A sodium (Avatec® 150G) as a coccidiostat for turkeys, pheasants, guinea fowl, quails and partridges. The additive currently on the market complies with the existing conditions of authorisation.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Giovanna Martelli, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Katerina Theodoridou, Pier Sandro Cocconcelli, Jürgen Gropp, Guido Rychen, Ivana Teodorivic, Jaume Galobart, Fabiola Pizzo, Maria Vittoria Vettori, Orsolya Holczknecht, Elisa Petenatti, Alberto Navarro‐Villa   +26 more
wiley   +1 more source

Distinct Whole Transcriptomic Profiles of the Bursa of Fabricius in Muscovy Ducklings Infected by Novel Duck Reovirus with Different Virulence

Viruses, 2022
Novel duck reovirus (NDRV) is a newly identified reovirus that brings about more severe damage on multiple organs and mortality in various species of waterfowl.
Tao Yun, Jionggang Hua, Zheng Ni, Weicheng Ye, Liu Chen, Yinchu Zhu, Cun Zhang   +6 more
doaj   +1 more source

Evaluation of the Antioxidant Status of Ethanolic Extract of Hypericum perforatum and Its Effect on Performance, Immune System, Antioxidant Status and Plasma Biochemical Indices of Broiler Chickens

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
Hypericum perforatum ethanolic extract (HPEE) at the levels of 0, 150, 300 and 450 mg/kg were used and dietary treatments did not affect growth performance including feed intake, body weight and feed conversion ratio. The HPPE reduced the abdominal fat and improved meat quality in broilers.
Hojjat Seraji‐Kopkan, Seyyed Javad Hosseini‐Vashan, Nazar Afzali, Mohammad Hassan Namaei   +3 more
wiley   +1 more source

Single fluff-spray application of mother hen uropygial secretion analogue positively influences bursa of Fabricius development and the heterophil-to-lymphocyte ratio in ROSS 308 chicks

Poultry Science, 2020
Stress is an important cause of illness and mortality in chick production. Stressors such as manipulation, absence of maternal care, transport, and housing can lead to welfare issues, immunodepression, and decreased productivity. The mother hen uropygial
Pietro Asproni, Cécile Bienboire-Frosini, Héloise Barthélémy, Violaine Mechin, Eva Teruel, Julien Leclercq, Alessandro Cozzi, Patrick Pageat   +7 more
doaj   +1 more source

Effects of Different Levels of Methionine in Liquid and Powder Forms on Growth Performance, Blood Parameters, and Carcass Traits of Broiler Chickens

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
Broiler chickens fed diets with liquid or combined methionine sources (especially 100‐LM and 50‐LPM) showed improved growth, feed efficiency, breast yield, villus height, and antioxidant status, with reduced serum urea, uric acid, and liver enzymes—demonstrating superior efficiency of liquid methionine supplementation.
Parvin Khosravi, Fatemeh Izadi Yazdanabadi, Hossein Sabzekar, Mahdi Rahmatinezhad, Saghar Zohouri, Amirhossein Hadiniya, Behnam Alizadeh   +6 more
wiley   +1 more source

Comprehensive transcriptome profiling of the chicken bursa infected with the novel variant infectious bursal disease virus

Poultry Science
Since 2016, the novel variant infectious bursal disease virus (nVarIBDV) has emerged as the predominant strain in China, which characterized by causing subclinical but persistent immunosuppression and substantial economic losses in chickens. However, the
Haifeng Xiong, Jiayan Wu, Shengnan Wang, Jianjun Zhang, Wei Zhang, Zhimin Wan, Tuofan Li, Quan Xie, Wei Gao, Aijian Qin, Jianqiang Ye, Hongxia Shao   +11 more
doaj   +1 more source

Characterization of Harderian Gland‐Derived Plasma Cells in Chicken

European Journal of Immunology, Volume 56, Issue 6, June 2026.
An isolation protocol for plasma cells (PC) from the chicken Harderian gland (HG) was established, and analyses of PCs revealed a FSChigh/CD45med/sIgpos/CD57pos/CXCR4high/TACIlow phenotype. Presence of CXCL12 and BAFF around HG PCs suggests a contribution of CXCL12–CXCR4 and BAFF–TACI to PC localization and survival.
D. von La Roche, I. Naumann, E. Szőcs, V. Halasy, M. Kohn, B. Kaspers, N. Nagy, S. Härtle   +7 more
wiley   +1 more source

The Bursa of Fabricius: The Evolution of a Discovery

Poultry Science, 1994
It has been a joy these past 40 yr to have traveled the "Bursal Road"--a road we helped construct and whose route allowed us to make a variety of observations that contributed either to basic science or indirectly or directly to the role of the bursa of Fabricius in the B cell repertoire.
openaire   +2 more sources

Safety of a feed additive consisting monensin sodium (Elancoban® G200) for chickens for fattening and chickens reared for laying (Elanco GmbH)

EFSA Journal, Volume 24, Issue 6, June 2026.
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the characterisation of the production strain and on the safety for the target species of monensin sodium (Elancoban® G200). The current application is a follow‐up of the re‐evaluation application of monensin sodium, intended for use as a ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Giovanna Martelli, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Katerina Theodoridou, Georges Bories, Pier Sandro Cocconcelli, Jürgen Gropp, Guido Rychen, Jaume Galobart, Maria Vittoria Vettori, Rosella Brozzi, Orsolya Holczknecht, Jordi Ortuño, Alberto Navarro‐Villa   +26 more
wiley   +1 more source

Marine algal polysaccharides alleviate aflatoxin B1-induced bursa of Fabricius injury by regulating redox and apoptotic signaling pathway in broilers

Poultry Science, 2021
Aflatoxin B1 (AFB1) causes toxic effect and leads to organ damage in broilers. Marine algal polysaccharides (MAP) of Enteromorpha prolifera exert multiple biological activities, maybe have a potential detoxification effect on AFB1, but the related ...
Yan Guo, Balamuralikrishnan Balasubramanian, Zhi-Hui Zhao, Wen-Chao Liu   +3 more
doaj   +1 more source