Results 71 to 80 of about 13,774 (221)

The serine/threonine kinase 33 is present and expressed in palaeognath birds but has become a unitary pseudogene in neognaths about 100 million years ago [PDF]

open access: yes, 2015
BACKGROUND: Serine/threonine kinase 33 (STK33) has been shown to be conserved across all major vertebrate classes including reptiles, mammals, amphibians and fish, suggesting its importance within vertebrates. It has been shown to phosphorylate vimentin
Daniel Schäfer   +3 more
core   +1 more source

Scanning electron microscopy of the corneal endothelium of ostrich Microscopia eletrônica de varredura do endotélio da córnea de avestruz

open access: yesCiência Rural, 2009
The aim of this study was to examine the endothelial surface morphology and perform a morphometric analysis of the corneal endothelial cells of ostrich (Struthio camelus) using scanning electron microscopy.
João Antonio Tadeu Pigatto   +7 more
doaj  

Efectos de los atributos de la hembra de ñandú (Rhea americana) sobre la viabilidad del huevo [PDF]

open access: yes, 2019
We conducted a study throughout a breeding season in a captive-bred population of Greater rheas (Rhea americana) to evaluate the association between egg viability and the female´s body weight and age.
Bazzano, Gisela del Valle   +3 more
core  

Genetic Parameters for Ostrich Incubation Traits in South Africa. [PDF]

open access: yes, 2009
Data obtained from a pair-mated ostrich flock located at Oudtshoorn, South Africa, were used to estimate genetic parameters for egg weight (EWT), weight of day-old chicks (CWT), water loss to 21 (WL21) and 35 (WL35) days of incubation, and pipping time ...
Brand, Z.   +3 more
core   +3 more sources

Phytodiversité et productivité herbacée du futur site de pré-lâché d’autruche d’Afrique du Nord (Struthio camelus camelus L.) dans le Koutous, Niger

open access: yes, 2020
L’autruche d’Afrique du Nord (Struthio camelus camelus) communement appelee autruche a cou rouge a disparu a l’etat naturel au Niger depuis 2004.
Maïmounatou Ibrahim Mamadou   +3 more
semanticscholar   +1 more source

Mechanics of cutting maneuvers by ostriches ( Struthio camelus ) [PDF]

open access: yesJournal of Experimental Biology, 2007
SUMMARY We studied the strategies used by cursorial bipeds (ostriches) to maneuver during running. Eight ostriches were induced to run along a trackway and execute turns. Ground reaction forces and three-dimensional kinematics of the body and leg joints were simultaneously recorded, allowing calculation of joint angles and quasi ...
Jindrich, Devin   +3 more
openaire   +3 more sources

Physicochemical characteristics of smoked cooked linguiças made with ostrich meat trimmings

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
The aim of this study was to evaluate the physicochemical characteristics of three formulations of smoked cooked linguiças, only differing in the lean meat used: (Formula 1 ― 100% ostrich meat; Formula 2 ― 50% ostrich meat + 50% pork; and Formula 3 ― 50%
R.S. Nascimento   +4 more
doaj   +1 more source

Changes in the Air Cell Volume of Artificially Incubated Ostrich Eggs. [PDF]

open access: yes, 2013
A total of 2160 images of candled, incubated ostrich eggs were digitized to determine the percentage of egg volume occupied by the air cell at different stages of incubation. The air cell on average occupied 2.5% of the volume of fresh eggs.
Brand, Z.   +3 more
core   +3 more sources

Follicular ovarian torsion in an ostrich (Struthio camelus)

open access: yesVeterinary Quarterly, 2012
105
Suárez-Bonnet, A.   +6 more
openaire   +3 more sources

Сучасний стан системи найпростіших та місце в ній черепашкових амеб Житомирського i Київського Полісся [PDF]

open access: yes, 2014
Розглянуто основні етапи становлення системи протистів, її сучасний стан та місце в ній черепашкових амеб. Згідно із сучасною системою еукаріот Едля зі співавторами черепашкові амеби належать до двох неспо- ріднених молекулярних кластерів, які не мають
Алпатова, О. М.
core  

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