Results 21 to 30 of about 24,128 (305)

The astacin metalloprotease moulting enzyme NAS-36 is required for normal cuticle ecdysis in free-living and parasitic nematodes [PDF]

open access: yes, 2011
Nematodes represent one of the most abundant and species-rich groups of animals on the planet, with parasitic species causing chronic, debilitating infections in both livestock and humans worldwide. The prevalence and success of the nematodes is a direct
ANDREW J. BIRNIE   +5 more
core   +1 more source

Biosynthesis and enzymology of the Caenorhabditis elegans cuticle: identification and characterization of a novel serine protease inhibitor. [PDF]

open access: yes, 2006
The nematode Caenorhabditis elegans represents an excellent model in which to examine nematode gene expression and function. A completed genome, straightforward transgenesis, available mutants and practical genome-wide RNAi approaches provide an ...
Andrew J. Birnie   +42 more
core   +1 more source

Effects of different force moulting methods on performance, egg quality and plasma metabolites in Japanese quails [PDF]

open access: yesBulgarian Journal of Veterinary Medicine, 2017
This study investigated the effects of various force moulting methods on egg physical and mechanical characteristics, plasma metabolites and performance of Japanese quails from 26 to 36 weeks of age.
A. A. Saki   +4 more
doaj   +1 more source

Using field photography to study avian moult [PDF]

open access: yes, 2017
Methods to obtain moult data from wild birds have not changed much over the last century and most studies still depend on checking museum specimens or capturing birds.
Furness, Robert W.   +2 more
core   +1 more source

moult: AnRPackage to Analyze Moult in Birds [PDF]

open access: yesJournal of Statistical Software, 2013
Moult is the process by which birds replace their feathers. It is a costly process in terms of energy and reduced flight ability but necessary for the maintenance of the plumage and its functions. Because birds generally avoid to moult while engaged with other energy demanding activities such as breeding and migration, the analysis of moult data gives ...
Erni, Birgit   +4 more
openaire   +3 more sources

Effects of the juvenile hormone mimic NC-184 on the development of the reproductive organs and mating behaviour of nymphs of the desert locust, Schistocerca gregaria (Orthoptera: Acrididae)

open access: yesEuropean Journal of Entomology, 2019
The insect growth regulator NC-184, a juvenile hormone mimic, prevents moulting to the adult stage in the desert locust, Schistocerca gregaria (Forskål) (Orthoptera: Acrididae).
Satoshi HIROYOSHI   +5 more
doaj   +1 more source

Egg development, hatching rhythm and moult patterns in Paralomos spinosissima (Decapoda: Anomura: Paguroidea: Lithodidae) from South Georgia waters (Southern Ocean) [PDF]

open access: yes, 2007
Larval release, hatching rhythms and moult patterns were examined in a captive population of the subantarctic lithodid, Paralomis spinosissima from the South Georgia and Shag Rocks region.
AM Wenner   +26 more
core   +1 more source

Birds of a feather moult together: Differences in moulting distribution of four species of storm-petrels.

open access: yesPLoS ONE, 2021
The non-breeding period of pelagic seabirds, and particularly the moulting stage, is an important, but understudied part of their annual cycle as they are hardly accessible outside of the breeding period.
Anne N M A Ausems   +3 more
doaj   +1 more source

The Life Cycle Relative to Temperature of Protaphorura Armatus (Tullberg) (Collembola: Onychiuridae), a Parathenogenetic Species [PDF]

open access: yes, 2017
Apparent parthenogenetic reproduction in Collembola has sometimes been attributed to accidental transfer of spermatophores with the food material from one culture to another (Schaller, 1953; Mayer, 1957).
Snider, Renate M.
core   +2 more sources

Pattern of Post-Juvenile Moult in Common Snipe (Gallinago Gallinago) and Its Implications for Ageing of the Species [PDF]

open access: yes, 2010
External ageing of Common Snipe (Gallinago gallinago) still engenders considerable problems. To improve precision of age determination on the basis of plumage characteristics a scheme of post-juvenile moult was investigated in approximately 1200 first ...
Janiszewski, Tomasz   +3 more
core   +1 more source

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