Navigation Links
How to grow a bigger brain

Hatchery-reared steelhead trout show increased growth of some parts of the brain when small stones are scattered on the bottom of their tank, according to a new study by researchers at UC Davis. The brains of those young fish were closer to those of salmon reared in the wild, and the fish also showed behavior closer to wild than to hatchery-reared fish.

"There's an obvious difference between the hatchery and the wild fish," said graduate student Rebecca Kihslinger, who carried out the study with Gabrielle Nevitt, professor of neurobiology, physiology and behavior at UC Davis. "A simple change affected brain growth in a large-scale way."

The results could affect the design of hatcheries for breeding fish to restock wild populations, Kihslinger said. The study is published in the February 2006 issue of the Journal of Experimental Biology.

Wild steelhead lay their eggs in gravel nests on the riverbed. After hatching, the fry, called alevins, stay among the gravel and live off their yolk sac until they emerge as free-swimming fry. In hatcheries, the fish are reared in tanks of clean, well-aerated water, but without environmental features or enrichment.

Earlier work by Nevitt's lab at UC Davis and other labs has shown differences between hatchery-reared and wild fish, Kihslinger said. But most studies have looked at older fish, and have not distinguished between the effects of selective breeding for "domesticated" fish and of the environment in which the fish live.

Kihslinger reared steelhead in regular tanks and in tanks scattered with small stones. She videotaped the fish, and measured the size of their brains after 10 to 12 days, when the fish were emerging as free-swimming fry. She also studied fish reared in natural conditions in rivers.

Fish reared in both sets of tanks had brains of similar size, but the cerebellum, a part of the brain that controls movement and body position, was significantly larger in fish reared w
'"/>

Source:University of California - Davis


Page: 1 2

Related biology news :

1. Signaling protein builds bigger, better bones in mice
2. Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution
3. Study finds evolution doesnt always favor bigger animals
4. Why do cold animals make bigger babies?
5. A puzzle piece found in unraveling the wiring of the brain
6. Mapping neuron connections in the brain
7. New insights into how Huntingtons disease attacks the brain
8. UQ researcher tracking key to healing the brain
9. Color perception is not in the eye of the beholder: Its in the brain
10. MIT researcher finds neuron growth in adult brain
11. New neurons take baby steps in the adult brain
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: How grow bigger brain

(Date:1/22/2015)... YORK , Jan. 21, 2015  Analyst Report Issued by ... Card Brands report showed that planet-wide, transactions at merchants on ... while the total number of credit, debit, and prepaid cards ... U.S. were victims of fraudulent card usage in 2012, and ...
(Date:1/22/2015)... 22, 2015 Research and Markets ( ... "Global Wearable Technologies Market and Applications, Opportunities, ... and Forecast 2014-2020" report to their offering. ... devices that can be worn on the user,s ...
(Date:1/22/2015)... , Jan. 22, 2015 Infinisource has launched its new ... G2 model. The G2 sets a higher standard for collecting ... capital management solution. With plug-and-play installation, touch screen interface and ... provides a robust time collection solution for the small to ...
Breaking Biology News(10 mins):$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2Infinisource's NXG series sets new time clock standard 2
... Dalhousie University in Nova Scotia have identified a key ... growth if their findings are confirmed. In ... journal of the American Association for Cancer Research, lead ... Biochemistry and Molecular Biology and Pathology, and Canada Research ...
... it,s on to proteins, a much more daunting task. There ... molecules in our bodies. Many of these hold keys to ... Northwestern University chemical biologist Neil Kelleher has developed a new ... molecules quickly. Many have been skeptical that such an approach, ...
... major public symposium at Boston College will bring together four ... contributions of the physical and social sciences to a contemporary ... Liberal Arts University Why It Matters to Us All, ... the Liberal Arts, takes place today at the University,s main ...
Cached Biology News:Key driver of metastasis identified 2So many proteins, so much promise 2So many proteins, so much promise 3Science in the liberal arts university 2
(Date:1/22/2015)... 22, 2015  Derma Sciences, Inc. (Nasdaq: ... advanced wound care, announces that AMNIOEXCEL® and AMNIOMATRIX®, ... added to the Premier, Inc. Regenerative Skin Grafting ... the AMNIOEXCEL® and AMNIOMATRIX® product lines, which continue ...
(Date:12/24/2014)...  Vermillion, Inc. (Nasdaq:   VRML), a bio-analytical solutions ... the Company closed its previously announced private placement ... W. Schuler , Birchview Fund LLC and several ... offering expenses.  The proceeds will be used for ...
(Date:12/24/2014)... December 23, 2014 Earlier this year in ... director of the Adult Stem Cell Technology Center, LLC ( ... appreciated unique property of adult tissue stem cells. His ... Past, Important for the Future,” embodied the essence of his ...
(Date:12/24/2014)... December 23, 2014 The report ... its definition, classification, application and industry overview. This ... product cost structure. Production is separated by regions, ... raw materials, equipment, downstream client survey, marketing channels, ...
Breaking Biology Technology:Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5Vermillion Announces Closing of Equity Financing 2Vermillion Announces Closing of Equity Financing 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4Worldwide Methyl Mercaptan Market 2015-2020 Forecasts on Development & Trends Now Available at ReportsnReports.com 2
... (OTCBB:MYMX) announced today that its company information ... Market Access Program, an,information distribution service that ... company information disseminated to users of,Standard & ... be made,available through this program includes share ...
... Comprehensive Clinical Picture, Improves,Patient-Physician Communications, KING ... A patients who,use Helixate(R) FS, Antihemophilic Factor ... treatment progress in real time,thanks to the ... system recently introduced by CSL Behring. The ...
... President of Commercial Operations,and James Briggs Senior Vice ... 25 Ikaria Holdings, Inc., a fully,integrated critical ... key executives. Stephen A. Ross was appointed Senior ... named Senior Vice,President for Human Relations., Daniel ...
Cached Biology Technology:Mymetics Corporation Information to be Available Through Standard & Poor's Market Access Program 2CSL Behring's Innovative HeliTrax(SM) System Helps Physicians Manage Hemophilia A Patients 2CSL Behring's Innovative HeliTrax(SM) System Helps Physicians Manage Hemophilia A Patients 3CSL Behring's Innovative HeliTrax(SM) System Helps Physicians Manage Hemophilia A Patients 4Ikaria(R) Strengthens Commercial Operations and Human Resources Leadership 2
Chicken polyclonal to YebU ( Abpromise for all tested applications). Antigen: Synthetic peptide, corresponding to amino acids 196-244 of E. coli YebU....
Rabbit polyclonal to Peptide E ( Abpromise for all tested applications)....
...
...
Biology Products: