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  1. Article: Thiamine and fatty acid content of walleye tissue from three southern U.S. reservoirs.

    Honeyfield, Dale C / Vandergoot, Christopher S / Bettoli, Phillip W / Hinterkopf, Joy P / Zajicek, James L

    Journal of aquatic animal health

    2008  Volume 19, Issue 2, Page(s) 84–93

    Abstract: We determined the thiamine concentration in egg, muscle, and liver tissues of walleyes Sander vitreus and the fatty acid content of walleye eggs from three southern U.S. reservoirs. In two Tennessee reservoirs (Dale Hollow and Center Hill), in which ... ...

    Abstract We determined the thiamine concentration in egg, muscle, and liver tissues of walleyes Sander vitreus and the fatty acid content of walleye eggs from three southern U.S. reservoirs. In two Tennessee reservoirs (Dale Hollow and Center Hill), in which there were alewives Alosa pseudoharengus in the forage base, natural recruitment of walleyes was not occurring; by contrast in Lake James Reservoir, North Carolina, where there were no alewives, the walleye population was sustained via natural recruitment. Female walleye tissues were collected and assayed for thiamine (vitamin B1) and fatty acid content. Thiamine pyrophosphate was found to be the predominant form of thiamine in walleye eggs. In 2000, mean total egg thiamine concentrations were similar among Center Hill, Dale Hollow, and Lake James reservoirs (2.13, 3.14, and 2.77 nmol thiamine/g, respectively). Egg thiamine concentration increased as maternal muscle (r2 = 0.73) and liver (r2 = 0.68) thiamine concentration increased. Walleye egg thiamine does not appear to be connected to poor natural reproduction in Tennessee walleyes. Threadfin shad Dorosoma petenense, which are found in all three reservoirs, had higher thiaminase activity than alewives. Six fatty acids differed among the walleye eggs for the three reservoirs. Two were physiologically important fatty acids, arachidonic acid (20:4[n-6]) and docosahexaenoic acid (22:6[n-3]), which are important eicosanoid precursors involved in the regulation of biological functions, such as immune response and reproduction.
    MeSH term(s) Animals ; Fatty Acids/analysis ; Female ; Fresh Water ; Liver/chemistry ; Male ; Muscle, Skeletal/chemistry ; North Carolina ; Organ Specificity ; Ovum/chemistry ; Perciformes/metabolism ; Tennessee ; Thiamine/analysis
    Chemical Substances Fatty Acids ; Thiamine (X66NSO3N35)
    Language English
    Publishing date 2008-01-16
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1019919-6
    ISSN 1548-8667 ; 0899-7659
    ISSN (online) 1548-8667
    ISSN 0899-7659
    DOI 10.1577/H06-033.1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Pathology, physiologic parameters, tissue contaminants, and tissue thiamine in morbid and healthy central Florida adult American alligators (Alligator mississippiensis).

    Honeyfield, Dale C / Ross, J Perran / Carbonneau, Dwayne A / Terrell, Scott P / Woodward, Allan R / Schoeb, Trenton R / Perceval, H Franklin / Hinterkopf, Joy P

    Journal of wildlife diseases

    2008  Volume 44, Issue 2, Page(s) 280–294

    Abstract: An investigation of adult alligator (Alligator mississippiensis) mortalities in Lake Griffin, central Florida, was conducted from 1998-2004. Alligator mortality was highest in the months of April and May and annual death count peaked in 2000. Bacterial ... ...

    Abstract An investigation of adult alligator (Alligator mississippiensis) mortalities in Lake Griffin, central Florida, was conducted from 1998-2004. Alligator mortality was highest in the months of April and May and annual death count peaked in 2000. Bacterial pathogens, heavy metals, and pesticides were not linked with the mortalities. Blood chemistry did not point to any clinical diagnosis, although differences between impaired and normal animals were noted. Captured alligators with signs of neurologic impairment displayed unresponsive and uncoordinated behavior. Three of 21 impaired Lake Griffin alligators were found to have neural lesions characteristic of thiamine deficiency in the telencephalon, particularly the dorsal ventricular ridge. In some cases, lesions were found in the thalamus, and parts of the midbrain. Liver and muscle tissue concentrations of thiamine (vitamin B(1)) were lowest in impaired Lake Griffin alligators when compared to unimpaired alligators or to alligators from Lake Woodruff. The consumption of thiaminase-positive gizzard shad (Dorosoma cepedianum) is thought to have been the cause of the low tissue thiamine and resulting mortalities.
    MeSH term(s) Alligators and Crocodiles/metabolism ; Animals ; Cause of Death ; Female ; Florida ; Hydrolases/administration & dosage ; Hydrolases/metabolism ; Male ; Mortality ; Nervous System/pathology ; Neurologic Examination/veterinary ; Seasons ; Thiamine/metabolism ; Thiamine/therapeutic use ; Thiamine Deficiency/mortality ; Thiamine Deficiency/pathology ; Thiamine Deficiency/veterinary
    Chemical Substances Hydrolases (EC 3.-) ; thiaminase II (EC 3.5.99.2) ; Thiamine (X66NSO3N35)
    Language English
    Publishing date 2008-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 410709-3
    ISSN 1943-3700 ; 0090-3558
    ISSN (online) 1943-3700
    ISSN 0090-3558
    DOI 10.7589/0090-3558-44.2.280
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 1441: Show issues Location:
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  3. Article: Pathology, physiologic parameters, tissue contaminants, and tissue thiamine in morbid and healthy central florida adult american alligators (Alligator mississippiensis)

    Honeyfield, Dale C / Ross, J.Perran / Carbonneau, Dwayne A / Terell, Scott P / Woodward, Allan R / Schoeb, Trenton R / Perceval, H. Franklin / Hinterkopf, Joy P

    Journal of wildlife diseases. 2008 Apr., v. 44, no. 2

    2008  

    Abstract: An investigation of adult alligator (Alligator mississippiensis) mortalities in Lake Griffin, central Florida, was conducted from 1998-2004. Alligator mortality was highest in the months of April and May and annual death count peaked in 2000. Bacterial ... ...

    Abstract An investigation of adult alligator (Alligator mississippiensis) mortalities in Lake Griffin, central Florida, was conducted from 1998-2004. Alligator mortality was highest in the months of April and May and annual death count peaked in 2000. Bacterial pathogens, heavy metals, and pesticides were not linked with the mortalities. Blood chemistry did not point to any clinical diagnosis, although differences between impaired and normal animals were noted. Captured alligators with signs of neurologic impairment displayed unresponsive and uncoordinated behavior. Three of 21 impaired Lake Griffin alligators were found to have neural lesions characteristic of thiamine deficiency in the telencephalon, particularly the dorsal ventricular ridge. In some cases, lesions were found in the thalamus, and parts of the midbrain. Liver and muscle tissue concentrations of thiamine (vitamin B1) were lowest in impaired Lake Griffin alligators when compared to unimpaired alligators or to alligators from Lake Woodruff. The consumption of thiaminase-positive gizzard shad (Dorosoma cepedianum) is thought to have been the cause of the low tissue thiamine and resulting mortalities.
    Keywords Alligator mississippiensis ; alligators ; mortality ; temporal variation ; pollutants ; pollution ; heavy metals ; organochlorine pesticides ; bacterial infections ; pathophysiology ; histopathology ; thiaminase ; thiamin ; vitamin deficiencies ; animal health ; Florida
    Language English
    Dates of publication 2008-04
    Size p. 280-294.
    Document type Article
    ZDB-ID 410709-3
    ISSN 1943-3700 ; 0090-3558
    ISSN (online) 1943-3700
    ISSN 0090-3558
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 1441: Show issues Location:
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  4. Article: Organochlorine pesticides and thiamine in eggs of largemouth bass and American alligators and their relationship with early life-stage mortality.

    Sepúlveda, Maria S / Wiebe, Jon J / Honeyfield, Dale C / Rauschenberger, Heath R / Hinterkopf, Joy P / Johnson, William E / Gross, Timothy S

    Journal of wildlife diseases

    2004  Volume 40, Issue 4, Page(s) 782–786

    Abstract: Thiamine deficiency has been linked to early mortality syndrome in salmonids in the Great Lakes. This study was conducted to compare thiamine concentrations in American alligators (Alligator mississippiensis) and Florida largemouth bass (Micropterus ... ...

    Abstract Thiamine deficiency has been linked to early mortality syndrome in salmonids in the Great Lakes. This study was conducted to compare thiamine concentrations in American alligators (Alligator mississippiensis) and Florida largemouth bass (Micropterus salmoides floridanus) eggs from sites with high embryo mortality and high exposure to organochlorine pesticides (OCPs) (Lakes Apopka and Griffin, and Emeralda Marsh, Florida, USA) to those from sites that have historically exhibited low embryo mortality and low OCPs (Lakes Woodruff and Orange, Florida). During June-July 2000, 20 alligator clutches were collected from these sites, artificially incubated, and monitored for embryo mortality. Thiamine and OCPs were measured in one egg/clutch. During February 2002, 10 adult female bass were collected from Emeralda Marsh and Lake Woodruff and mature ovaries analyzed for thiamine and OCP concentrations. Although ovaries from the Emeralda Marsh bass contained almost 1,000-fold more OCPs compared with the reference site, Lake Woodruff, there were no differences in thiamine concentrations between sites (11,710 vs. 11,857 pmol/g). In contrast, alligator eggs from the reference site had five times the amount of thiamine compared with the contaminated sites (3,123 vs. 617 pmol/g). Similarly, clutches with >55% hatch rates had significantly higher concentrations of thiamine compared with clutches with <54% hatch rates (1,119 vs. 201 pmol/g). These results suggest that thiamine deficiency might be playing an important role in alligator embryo survival but not in reproductive failure and recruitment of largemouth bass. The cause(s) of this thiamine deficiency are unknown but might be related to differences in the nutritional value of prey items across the sites studied and/or to the presence of high concentration of contaminants in eggs.
    MeSH term(s) Alligators and Crocodiles ; Animals ; Bass ; Eggs/analysis ; Environmental Exposure ; Female ; Fish Diseases/chemically induced ; Fish Diseases/physiopathology ; Florida ; Hydrocarbons, Chlorinated/poisoning ; Maternal Exposure ; Mortality ; Ovum/chemistry ; Pesticides/poisoning ; Reproduction/drug effects ; Thiamine/metabolism ; Thiamine Deficiency/chemically induced ; Thiamine Deficiency/mortality ; Thiamine Deficiency/veterinary ; Water Pollutants, Chemical/poisoning
    Chemical Substances Hydrocarbons, Chlorinated ; Pesticides ; Water Pollutants, Chemical ; Thiamine (X66NSO3N35)
    Language English
    Publishing date 2004-10
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 410709-3
    ISSN 1943-3700 ; 0090-3558
    ISSN (online) 1943-3700
    ISSN 0090-3558
    DOI 10.7589/0090-3558-40.4.782
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 1441: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
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