Results 41 to 50 of about 10,925 (255)

Transgenic Expression of the Anti-parasitic Factor TEP1 in the Malaria Mosquito Anopheles gambiae [PDF]

open access: yes, 2017
Mosquitoes genetically engineered to be resistant to Plasmodium parasites represent a promising novel approach in the fight against malaria. The insect immune system itself is a source of anti-parasitic genes potentially exploitable for transgenic ...
Blandin, S. (Stephanie)   +8 more
core   +5 more sources

Effects of High Levels of Enzyme Blend With Probiotic on Performance, Intestinal Morphology, Microbial Population, and Immune Response in Broiler Chickens

open access: yesVeterinary Medicine and Science, Volume 12, Issue 1, January 2026.
High levels of enzyme blend (450 and 600 mg/kg) combined with probiotics improved growth performance and reduced coliform populations in broiler chickens, without affecting carcass traits, meat quality or immune response. These findings highlight the synergistic effects of enzymes and probiotics on gut health and productivity.2 ABSTRACT Background ...
Bahnaz Esmaeili   +2 more
wiley   +1 more source

Evolution and Spread of Regionally Adapted Newcastle Disease Virus Isolates From Live Bird Markets in Nigeria, 2023–2024

open access: yesTransboundary and Emerging Diseases, Volume 2026, Issue 1, 2026.
Newcastle disease (ND) virus (NDV) infection ranks among the most important poultry diseases globally. In Nigeria, ND remains a persistent menace to poultry production, marked by recurrent outbreaks. However, there is limited understanding of the evolutionary changes and transmission dynamics of the virus in the region.
Mohammed Usman Sajo   +7 more
wiley   +1 more source

The digestive tract histology and geographical distribution of gastrointestinal microbiota in yellow-feather broilers

open access: yesPoultry Science, 2023
: Exhaustive understanding of intestinal physiological characteristics is the critical precondition for the improvement of intestinal health and growth performance of yellow-feather broilers (YFB). As a vital part of gastrointestinal tract, the symbiotic,
Pingting Guo   +5 more
doaj   +1 more source

Pathology associated with larval Eustrongylides sp. (Nematoda: Dioctophymatoidea) infection in Galaxias maculatus (Actinopterygii: Galaxiidae) from Patagonia, Argentina [PDF]

open access: yes, 2019
Helminth infections within tissues tend to be subjected to a host response that can include encapsulation and melanization to isolate the parasite. The effectiveness of this response depends on the host species. During a survey of parasites of the native
Brugni, Norma Leonor   +2 more
core   +1 more source

Storm‐Petrels Aggregate on the Open Sea to Feast on Opportune Blubber

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
During a pelagic survey in the Galápagos, I recorded at least fifty Elliot's storm‐petrels (Oceanites gracilis) foraging at a large piece of drifting blubber. Individuals pattered at the sea surface to pick up oil droplets, a foraging mode consistent with storm‐petrel ecology yet rarely documented in the context of mammal carcasses.
Shahar Dubiner
wiley   +1 more source

Standard methods for Apis mellifera anatomy and dissection [PDF]

open access: yes, 2013
An understanding of the anatomy and functions of internal and external structures is fundamental to many studies on the honey bee Apis mellifera. Similarly, proficiency in dissection techniques is vital for many more complex procedures.
CASAGRANDE-JALORETTO D C   +9 more
core   +1 more source

Histopathological and genetic characterisation of Marek's disease in Sebright chickens from Brazil

open access: yesVeterinary Record Case Reports, Volume 13, Issue 4, December 2025.
Abstract Marek's disease is a lymphoproliferative condition caused by Gallid alphaherpesvirus 2 (Marek's disease virus), affecting primarily birds of the order Galliformes. This study reports a case of Marek's disease in Sebright chickens in Rio de Janeiro, Brazil.
Thomas Salles Dias   +5 more
wiley   +1 more source

Zoological results of a tour in the far east : Polyzoa Entoprocta and Ctenostomata [PDF]

open access: yes, 2009
The Polyzoa discussed or described in this paper are all from fresh or brackish water. The majority are from the Tale Sap in the north-eastern part of the Malay Peninsula} but a few come from the Tai-Hu in the Kiangsu Province of China.
Annandale, Nelson
core  

Safety and efficacy of a feed additive consisting of clinoptilolite of volcanic origin for all terrestrial animal species (IMERYS Talc Europe)

open access: yesEFSA Journal, Volume 23, Issue 12, December 2025.
Abstract Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of clinoptilolite of volcanic origin as a technological feed additive for all terrestrial animal species.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)   +25 more
wiley   +1 more source

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