Results 111 to 120 of about 108,893 (353)

Utilização de extrato de própolis verde no resfriamento de sêmen equino [PDF]

open access: yes, 2014
Seminal cooling aims to prolong spermatic lifespan and fertilizing capacity due to reduction in energy metabolism of spermatozoa, providing enough period for transportation from the stallion to the mare.
Santos, Fernanda Carlini Cunha dos
core   +1 more source

The Role of miRNAs in Chicken Immune Regulation and Prospects for Disease‐Resistant Breeding

open access: yesAnimal Research and One Health, EarlyView.
A schematic workflow illustrating the screening of disease‐resistant miRNAs and the generation of miRNA‐based disease‐resistant chickens via PGC‐mediated germline genome editing. ABSTRACT MicroRNAs (miRNAs) are emerging as pivotal regulators of the immune system, playing a decisive role in shaping disease resistance in chicken.
Qiangzhou Wang   +10 more
wiley   +1 more source

A New Era for Using Natural Pigments: The Case of the C50 Carotenoid Called Bacterioruberin

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Haloarchaea are extremophilic microorganisms belonging to the Archaea domain that require high salt concentrations to live, thus inhabiting ecosystems like salty ponds, salty marshes, or extremely salty lagoons. They are more abundant and widely distributed worldwide than initially expected.
Micaela Giani   +5 more
wiley   +1 more source

Association of heat shock protein 70 with motility of frozen-thawed sperm in bulls

open access: yesCzech Journal of Animal Science, 2015
Heat shock protein 70 (HSP70) is considered as a gene which affects semen quality traits. The present study attempted to investigate the relationship between the HSP70 expression level and motility of bull sperm during the process of freezing-thawing ...
X.-G. Zhang   +5 more
doaj   +1 more source

Cryopreservation of Pike Perch Sperm in Hatchery Conditions [PDF]

open access: yes, 2008
Experiments were carried out on pike perch (Sander lucioperca L.) to find a method for stripping sperm without contamination by urine, to determine sperm concentration, and to fertilize large batches of eggs with cryopreserved sperm.
Bokor, Zoltán   +3 more
core  

Bottom‐Up Ice Growth Geometry Attenuates Shear Stress and Improves the Cryopreservation of Hematopoietic Stem/Progenitor Cells Under Low DMSO Concentrations

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Studies on cell cryopreservation have been limited by the complexity of the freezing process and challenges on controlling ice formation, managing cooling rates, and optimizing cryoprotectant concentrations. The objective of this study is to evaluate the impact of bottom‐up and conventional radial freezing on the viability of mammalian cells ...
Rafaela Ouro Neves   +8 more
wiley   +1 more source

Demonstration of the effect of epidermal growth factor on ram sperm parameters using two fluorescent assays

open access: yesVeterinární Medicína, 2010
: The goal of this study was to examine the effect of epidermal growth factor (EGF) on sperm viability using two fluorescent techniques and to analyze the obtained results in relation to sperm motility, determined by subjective estimation.
A.V. Makarevich   +3 more
doaj   +1 more source

Development and standardization of a protocol for sperm cryopreservation of two important commercial oyster species [PDF]

open access: yes, 2015
Dissertação de mestrado, Aquacultura e Pescas, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2015Aquaculture activities have a huge contribution for the world food production and their development is extremely necessary to answer to the ...
Melo, Francisca Félix de Azeredo Pinto e
core  

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