Results 51 to 60 of about 5,893 (198)

The Effect of Fluorine on the Chicken Proventriculus

open access: yesPoultry Science, 1959
Abstract THE relationship of fluorine and the growth and development of the proventriculus has never been extensively studied. Our interest grew from an experiment with graded levels of calcium fluoride and sodium fluoride (Gardiner, Parker and Carrick, 1959) in which it was observed that the glandular stomach of chicks fed high levels of sodium ...
E.E. Gardiner   +4 more
openaire   +1 more source

Histomorphology Structure of the Gastric Caecum, Midgut, and Malpighian Tubules in Adult Flatheaded Pine Borer Chalcophora mariana (Linnaeus, 1758) (Coleoptera: Buprestidae)

open access: yesActa Zoologica, EarlyView.
ABSTRACT The pine weevil is one of the largest species in the jewel beetle (Buprestidae) family found in Central Europe and Turkey. Chalcophora mariana is generally considered a secondary guest and primarily develops in weakened, decaying, or recently dead pine trees.
Hicret Arslan, Selami Candan
wiley   +1 more source

Development of the proventriculus in larvae of the slipper lobster, Ibacus ciliatus (Decapoda: Scyllaridae)

open access: yes, 1993
The morphological development of the proventriculus in the phyllosomal and nisto stages of the scyllarid slipper lobster is described and illustrated. Possible flow pathways of food particles is deduced from the structure of the proventriculus.
Takashima, Fumio, Mikami, Satoshi
core   +1 more source

The Expression of Proteases and the Oligopeptide Transporter PepT1 in the Yolk Sac Membrane, Proventriculus, and Small Intestine During the Development of Anas platyrhynchos domestica Embryo

open access: yesBiology
The role of the yolk sac membrane (YSM) and digestive tract in the processing of egg yolk proteins during embryogenesis is unexplored in the duck Anas platyrhynchos domestica.
Seba Jamal Shbailat, Ibtisam Omar Aslan
doaj   +1 more source

Life‐stage variation in Sable Shearwater (Ardenna carneipes) physiology assessed using proteomics

open access: yesIbis, EarlyView.
Life‐stage transitions in seabirds involve substantial shifts in physiological demands, yet the molecular mechanisms underpinning these changes remain poorly resolved. Here we applied untargeted data‐independent acquisition mass spectrometry (DIA‐MS) to characterize and compare the plasma proteomes of fledgling and adult Sable Shearwaters Ardenna ...
Alix M. de Jersey   +5 more
wiley   +1 more source

A redescription of Cryptosporidium galli Pavlasek, 1999 (Apicomplexa: Cryptosporidiidae) from birds [PDF]

open access: yes, 2003
Clyptosporidium galli Pavlasek, 1999, described from the feces of birds, is redescribed with additional molecular and biological data. Oocysts are ellipsoidal, are passed fully sporulated, lack sporocysts, and measure 8.25 × 6.3 μm (range 8.0-8.5 × 6.2-6.
Sulaiman, I.   +7 more
core  

Proventriculus of three nemobiinae crickets (Orthoptera: Grylloidea: Trigonidiidae)

open access: yes, 2009
The morphology of the proventriculus may supply useful taxonomic characters for some species of crickets. This study evaluated if the proventriculus can be used to distinguish three species of Nemobiinae crickets: Phoremia sp. n., Zucchiella sp.
Szinwelski, Neucir   +4 more
core   +1 more source

Defecation in preparation for ecdysis drives microplastic clearance in cricket nymphs

open access: yesPhysiological Entomology, EarlyView.
In preparation for ecdysis, cricket nymphs cease feeding and gradually clear their gut contents via frass production, which removes most ingested MPs from their digestive tract. Following exoskeletal moulting, the foregut lining, including any remaining MPs, is shed and excreted alongside frass approximately 6 h later.
Jennie E. Mills   +3 more
wiley   +1 more source

Waders in a sea of debris: a global overview

open access: yesBiological Reviews, Volume 101, Issue 5, Page 2253-2264, October 2026.
ABSTRACT The impact of plastic pollution on ecosystems and marine fauna is well documented, although research into its effects on waders (also known as shorebirds) remains limited. Given that waders are exposed to coastal marine litter, this exposure could be a significant factor in the decline of their populations. This study aims to assess the global
Yada Trapletti‐Lanti   +3 more
wiley   +1 more source

The proventriculus of Cicindelidae : systematics and functional morphology [PDF]

open access: yes, 1994
Internal structures of the proventriculus of adult tiger beetles were examined to determine their function and taxonomic and phylogenetic value. The overall appearance of the proventriculus suggested an intricate filter designed to permit the flow of ...
Jamieson, Cindy
core  

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