An aphrodisiac pheromone discovered in the semen of sea lampreys attracts ready-to-mate females, according to a study publishing July 9 in the open-access journal PLOS Biology by Anne M. Scott of Michigan State University, ...
Plants & Animals
Jul 9, 2019
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119
(Phys.org) —Washington State University researchers are preparing to use liquid nitrogen to create a frozen semen bank from select U.S. and European honey bee colonies.
Plants & Animals
Jun 13, 2013
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0
A study led by researchers at The University of Nottingham has discovered that the fertility of dogs may have suffered a sharp decline over the past three decades.
Plants & Animals
Aug 9, 2016
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15
(PhysOrg.com) -- Artificial insemination (AI) techniques that work well with cattle and swine can be difficult or costly to perform in sheep, but help’s on the way, thanks to Agricultural Research Service (ARS) studies ...
Other
Oct 20, 2009
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0
Using holographic imaging system, the microscope can produce phase and amplitude images of semen samples in the field and identify which are moving and which are immotile.
Analytical Chemistry
Oct 11, 2010
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0
For a mammal's sperm to succeed, it must complete the swim of its life to reach and fertilize an egg. That's easier if it swims through water, not goo.
Biotechnology
Apr 19, 2017
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100
(AP)—The scientists and fishermen on board the Ocearch, a repurposed crabbing vessel, received word that their scouting boat had hooked a great white shark, sparking a flurry of activity.
Ecology
Sep 18, 2012
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0
The female of a sex-role reversed cave insect species Neotrogla has evolved a switching valve to receive more semen during mating, when a penis-like structure in the female anchors in the male "vagina."
Plants & Animals
Oct 17, 2018
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2
A discovery that blocks the normal transition of semen from a thick gel to a liquid shows promise for development of a new form of non-hormonal, over-the-counter contraception.
Cell & Microbiology
Feb 7, 2022
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262
Although U.S. cattle genetics are exported all over the world in the form of frozen semen, the same is not true for pigs because boar semen does not freeze well. In an attempt to improve semen storage and pig reproduction, ...
Other
Apr 24, 2013
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