Results 21 to 30 of about 25,915 (289)

PATHOMORPHOLOGY OF CHICKENS ORGANS WITH RESPIRATORY, NEFROSO-NEPHRITIS AND REPRODUCTIVE FORM OF INFECTIOUS BRONCHITIS

open access: yesНаукові горизонти, 2019
The article presents the data of pathomorphology of chicken organs for infectious bronchitis. The authors found that the lesions of the organs for infectious bronchitis of chickens are systemic in nature and manifests itself depending on the age of the ...
S. Guralska   +4 more
doaj   +1 more source

The Known and Unknown About Female Reproductive Tract Mucus Rheological Properties. [PDF]

open access: yesBioessays
Mucus viscosity changes as spermatozoa travel through the female reproductive tract to the egg in humans, bovines, mice, and other mammals. These changes may aid in spermatozoa navigation. However, limited information is available on the viscoelastic properties of female reproductive tract mucus, and consistent measurement techniques are lacking ...
Achinger L   +19 more
europepmc   +2 more sources

Neuromuscular organization and aminergic modulation of contractions in the Drosophila ovary [PDF]

open access: yes, 2006
Background: The processes by which eggs develop in the insect ovary are well characterized. Despite a large number of Drosophila mutants that cannot lay eggs, the way that the egg is moved along the reproductive tract from ovary to uterus is less well ...
Elliott, C.J.H.   +5 more
core   +3 more sources

Hens with Bilateral Oviducts [PDF]

open access: yesNature, 1957
As the reproductive organs of the female chicken develop there is an atrophy of the right gonad and the right oviduct which begins during early embryogeny. Persistency of these structures on the left side results in only one functional ovary and oviduct.
Walter Morgan, William Kohlmeyer
openaire   +3 more sources

Allantoin Crystal Formation in Bagrada hilaris (Burmeister) (Heteroptera: Pentatomidae) Females. [PDF]

open access: yes, 2017
Bagrada hilaris is a polyphagous herbivore reported as an invasive pest in the United States. During the course of dissecting Burmeister hilaris unique crystals were observed in both the midgut and oviducts.
Allen, Margaret L   +5 more
core   +2 more sources

Two new species of Dugesia (Platyhelminthes, Tricladida, Dugesiidae) from the tropical monsoon forest in southern China [PDF]

open access: yesZooKeys, 2021
Two new species of the genus Dugesia (Platyhelminthes, Tricladida, Dugesiidae) from the tropical monsoon forest in southern China are described on the basis of an integrative taxonomic study involving morphology, karyology, histology, and molecular ...
Lei Wang   +5 more
doaj   +3 more sources

LSD1 is essential for oocyte meiotic progression by regulating CDC25B expression in mice [PDF]

open access: yes, 2015
Mammalian oocytes are arrested at prophase I until puberty when hormonal signals induce the resumption of meiosis I and progression to meiosis II.
Chen, T   +8 more
core   +1 more source

Role of the oviduct and oviduct-derived products in ruminant embryo development [PDF]

open access: yesAnimal Reproduction, 2016
The fact that embryos can be obtained in vitro undermines the role of the oviduct. However, it has been demonstrated that when in vitro produced bovine zygotes are cultured in the oviduct of sheep, cattle or mice the embryo quality is improved compared to the embryos produced in vitro.
D. Rizos, V. Maillo, P. Lonergan
openaire   +3 more sources

Extracellular Vesicles and the Oviduct Function [PDF]

open access: yesInternational Journal of Molecular Sciences, 2020
In mammals, the oviduct (or the Fallopian tube in humans) can be divided into the infundibulum (responsible for oocyte pick-up), ampulla (site of fertilization), isthmus (where preimplantation embryos develop), and uterotubal junction (where embryos transit to the uterus). The oviductal fluid, as well as extracellular vesicles produced from the oviduct
Emily A. Harris   +2 more
openaire   +3 more sources

Reproductive biology, morphology, and morphometry of ovaries and oviducts of Trachemys scripta elegans in Brazilian Cerrado [PDF]

open access: yesPesquisa Veterinária Brasileira
: Although Trachemys scripta elegans is an exotic species popular as a pet in Brazil, studies on reproductive biology and capacity are non-existent in the Brazilian Cerrado.
Adriana Gradela   +7 more
doaj   +2 more sources

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