Results 51 to 60 of about 852 (134)

Effect of Feeding Oak Acorn on Expression of IL-2, IL-13 and IFN-γ Genes in Bursa Fabricius Tissue of Broiler Chickens (Short Communication) [PDF]

Poultry Science Journal, 2019
Today, the use of oak as a replacement feed in poultry diets is well documented. However, oak contains polyphenol compounds (tannins) as antinutrient factors resulted in limited usage in the poultry rations.
Nobakht E, Muhaghegh Dolatabady M
doaj   +1 more source

Safety and efficacy of a feed additive consisting of narasin and diclazuril (Interban®) for chickens for fattening and chickens reared for laying (Elanco GmbH)

EFSA Journal, Volume 24, Issue 3, March 2026.
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of the coccidiostat consisting of narasin and diclazuril (Interban®) for chickens for fattening and chickens reared for laying. The FEEDAP Panel concludes that the use of Streptomyces sp. NRRL B‐67771 in the production of
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, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Katerina Theodoridou, Maria Bastos, Georges Bories, Paul Brantom, Pier Sandro Cocconcelli, Jürgen Gropp, Mariana Petkova, Fernando Ramos, Guido Rychen, Luca Tosti, Ruud Woutersen, Jaume Galobart, Paola Manini, Alberto Navarro‐Villa, Elisa Pettenati, Fabiola Pizzo, Barbara Rossi, Maria Vittoria Vettori, Orsolya Holczknecht   +33 more
wiley   +1 more source

Light microscopic investigations on the embryonic development of chicken bursa fabricii [PDF]

Eurasian Journal of Veterinary Sciences
In this study embryonic development of Chicken Bursa Fabricii (Avian cloacal bursa) was investigated by light microscopy. For this purpose 1 50 fertilised eggs of a domestic hybrid line, GXSX were used as a material. From 6th to 17 th days of hatching, 5
Nazlı Kocaöz, İlhami Çelik, Sadettin Ünsal   +2 more
doaj  

Development of the Bursa of Fabricius in the Partridge and Pheasant

Poultry Science, 1987
Development and regression of the bursa of Fabricius was measured in chukar partridge (Alectoris chukar) and ring-necked pheasant (Phasianus colchicus) from hatch to 40 and 34 weeks of age, respectively. Testes weights were recorded for 8 to 34-week-old pheasants and 12 to 30-week-old chukars.
S L, Mercer-Oltjen, A E, Woodard
openaire   +2 more sources

Effects of in Ovo Feeding With Glycosaminoglycans and Vitamins on Intestinal Morphometry and Cadherin‐1 Gene Copy Abundance in Broilers

Animal Science Journal, Volume 97, Issue 1, January/December 2026.
ABSTRACT This study evaluated the effects of in ovo feeding with glycosaminoglycans and vitamins, combined with amphotericin and gentamicin, on incubation traits, intestinal morphometry, organ development, and cadherin‐1 gene relative abundance in broilers.
Elaine Talita Santos, Silvana Martinez Baraldi‐Artoni, Jean Kaique Valentim, Rodrigo Garófallo Garcia, Peter Ferket, Ramon Diniz Malheiros, Melody Martins Cavalcante Pereira, Sarah Sgavioli   +7 more
wiley   +1 more source

Age-related development and histomorphological observations of bursa of Fabricius in sonali chicken

Journal of Advanced Biotechnology and Experimental Therapeutics, 2020
The aim of this research was to investigate the age related histomorphological and involutory changes of bursa of Fabricius of sonali chicken at different postnatal stages in Bangladesh.
Ummay Ayman, Md. Rafiqul Alam, Shonkor Kumar Das   +2 more
doaj   +1 more source

Meta‐Analysis of the Efficacy of Spirulina Intervention in Mitigating the Negative Impact of Heat Stress on Production Physiology and Health Indices of Broilers

Journal of Animal Physiology and Animal Nutrition, Volume 110, Issue 1, Page 23-34, January 2026.
ABSTRACT There is an increasing number of published studies on the effect of spirulina (an aquatic plant known for its high nutritional value and potential health benefits) intervention on productivity and health of heat‐stressed broilers. However, the effect of spirulina intervention on the performance of broilers exposed to heat stress is poorly ...
Christian Anayo Mbajiorgu, Ifeanyichukwu Princewill Ogbuewu, Monnye Mabelebele   +2 more
wiley   +1 more source

Effect of Marek's vaccine on some lymphoid organs in layers [PDF]

Iraqi Journal of Veterinary Sciences, 2011
The aim of the study was to examine experimentally the gross and histological changes in layers (ISA Brown) inoculated with bivalent vaccine (CVI 988 and HVT) intramuscularly at one day of age.
H. A. Hassan, T. S. Qubih
doaj  

Phylogeny, systematics and evolution of mimicry patterns in Neotropical limenitidine butterflies

Systematic Entomology, Volume 51, Issue 1, January‐March 2026.
The most comprehensive phylogeny for Adelpha reveals that it is not monophyletic, supporting the description of the new genus Adelphina for the alala‐group. The rate of mimicry evolution increases towards the tropics, consistent with the hypothesis of stronger biotic interactions near the equator.
Erika Páez V., Gael J. Kergoat, Nicolas Chazot, Mohamed Benmesbah, Adriana D. Briscoe, Susan D. Finkbeiner, André V. L. Freitas, Robert P. Guralnick, Ryan I. Hill, Marcus R. Kronforst, Luiza Moraes Magaldi, Sean P. Mullen, Ichiro Nakamura, Hannah L. Owens, Niklas Wahlberg, Maxwell Woodbury, Marianne Elias, Keith R. Willmott   +17 more
wiley   +1 more source

Complementary genomic and morphological data elucidate the phylogeny of obscure darkling beetles (Blaptinae: Platynotini: Eurynotina)

Systematic Entomology, Volume 51, Issue 1, January‐March 2026.
First comprehensive phylogenomic study of subtribe Eurynotina using a combined dataset of 499 nuclear loci, 12 mitochondrial loci and 91 morphological characters covering all genera and species groups is presented. Eurynotina is monophyletic and genera within are redefined based on reassessment of old characters, generation of new characters, and ...
Ryan Lumen, Adam M. Rork, Aaron D. Smith, Marcin J. Kamiński   +3 more
wiley   +1 more source