The effect of iodine and strumigens long-term foodborne intake on histometrical parameters of thyroid gland in gimmers
In 2010 and 2011 two experiments on gimmers of Šumava mountain sheep were performed. The first experiment was carried out on 12 animals (experimental period was 11 months); control group was fed with 3 mg I*kg−1 in dry matter per day and experimental group was fed with 5 mg I*kg−1 in dry matter per...
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| Format: | Article |
| Language: | English |
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Mendel University Press
2013-01-01
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| Series: | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
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| Online Access: | https://acta.mendelu.cz/61/5/1365/ |
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| author | Zdeněk Peksa Jan Trávníček Roman Konečný František Jelínek Hana Dušová Kateřina Volfová Aneta Vrbová Luboš Zábranský Daniel Falta Václav Pálka |
| author_facet | Zdeněk Peksa Jan Trávníček Roman Konečný František Jelínek Hana Dušová Kateřina Volfová Aneta Vrbová Luboš Zábranský Daniel Falta Václav Pálka |
| author_sort | Zdeněk Peksa |
| collection | DOAJ |
| description | In 2010 and 2011 two experiments on gimmers of Šumava mountain sheep were performed. The first experiment was carried out on 12 animals (experimental period was 11 months); control group was fed with 3 mg I*kg−1 in dry matter per day and experimental group was fed with 5 mg I*kg−1 in dry matter per day. The second experiment lasted 10 months and it was carried out on 12 animals. Feed ration for control group contained 10 mg I*kg DM−1. Feed ration for experimental group contained 10 mg I*kg DM−1 too; moreover it included rapeseed meal and 1 g of sodium nitrate. The aim of the first experiment was focused on impact of high iodine intake on structure of thyroid gland. The aim of the second experiment was to discover effect of strumigens during high iodine intake on structure of thyroid gland. The animals were slaughtered after the experiment and there was executed the dissection of thyroid gland. The samples of thyroid gland were processed during classic paraffin method and dyed with haematoxylin and eosin. For finding of histometrical parameters was used program Leica IM 500 Version 4.0. The length, the width and the area of follicles were measured. The follicles were divided into three groups after this procedure (by the length); in each group were measured 20 thyreocytes. In group with intake 5 mg I*kg DM−1 (experiment from year 2010): higher weight of thyroid (p < 0.01), significant higher (p < 0.05) proportional representation of large and medium follicles, significantly (p < 0.05) higher average size of follicles, demonstrably lower (p < 0.05) height of epithelium were found. There were not found any differences in monitored parameters between the groups from experiment which was carried out during the year 2011. After comparing results from the both experiments significantly higher percentage representation of large follicles a significantly lower representation of small follicles, distinctly higher average size and higher height of epithelium in all size categories, in groups with iodine intake 10 mg I*kg DM−1was found (from second experiment – year 2011). |
| first_indexed | 2024-04-13T20:44:13Z |
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| id | doaj.art-251b6a7442724c4b98bee31ce22cc37e |
| institution | Directory Open Access Journal |
| issn | 1211-8516 2464-8310 |
| language | English |
| last_indexed | 2024-04-13T20:44:13Z |
| publishDate | 2013-01-01 |
| publisher | Mendel University Press |
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| series | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| spelling | doaj.art-251b6a7442724c4b98bee31ce22cc37e2022-12-22T02:30:44ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102013-01-016151365136910.11118/actaun201361051365The effect of iodine and strumigens long-term foodborne intake on histometrical parameters of thyroid gland in gimmersZdeněk Peksa0Jan Trávníček1Roman Konečný2František Jelínek3Hana Dušová4Kateřina Volfová5Aneta Vrbová6Luboš Zábranský7Daniel Falta8Václav Pálka9University of South Bohemia, Faculty of Agriculture, Department of Veterinary Disciplines and Quality of Products, Studentská 13, 370 05 České Budějovice, Czech RepublicUniversity of South Bohemia, Faculty of Agriculture, Department of Veterinary Disciplines and Quality of Products, Studentská 13, 370 05 České Budějovice, Czech RepublicUniversity of South Bohemia, Faculty of Agriculture, Department of Veterinary Disciplines and Quality of Products, Studentská 13, 370 05 České Budějovice, Czech RepublicVeterinary Histopathological Laboratory, Sojovická 16, 197 00 Prague 19, Czech RepublicUniversity of South Bohemia, Faculty of Agriculture, Department of Veterinary Disciplines and Quality of Products, Studentská 13, 370 05 České Budějovice, Czech RepublicUniversity of South Bohemia, Faculty of Agriculture, Department Animal Husbandry, Studentská 13, 370 05 České Budějovice, Czech RepublicUniversity of South Bohemia, Faculty of Agriculture, Department Animal Husbandry, Studentská 13, 370 05 České Budějovice, Czech RepublicUniversity of South Bohemia, Faculty of Agriculture, Department of Veterinary Disciplines and Quality of Products, Studentská 13, 370 05 České Budějovice, Czech RepublicMendel University in Brno, Faculty of Agronomy, Department of Animal Breeding, Zemědělská 1, 613 00 Brno, Czech RepublicUniversity of South Bohemia, Faculty of Agriculture, Department of Veterinary Disciplines and Quality of Products, Studentská 13, 370 05 České Budějovice, Czech RepublicIn 2010 and 2011 two experiments on gimmers of Šumava mountain sheep were performed. The first experiment was carried out on 12 animals (experimental period was 11 months); control group was fed with 3 mg I*kg−1 in dry matter per day and experimental group was fed with 5 mg I*kg−1 in dry matter per day. The second experiment lasted 10 months and it was carried out on 12 animals. Feed ration for control group contained 10 mg I*kg DM−1. Feed ration for experimental group contained 10 mg I*kg DM−1 too; moreover it included rapeseed meal and 1 g of sodium nitrate. The aim of the first experiment was focused on impact of high iodine intake on structure of thyroid gland. The aim of the second experiment was to discover effect of strumigens during high iodine intake on structure of thyroid gland. The animals were slaughtered after the experiment and there was executed the dissection of thyroid gland. The samples of thyroid gland were processed during classic paraffin method and dyed with haematoxylin and eosin. For finding of histometrical parameters was used program Leica IM 500 Version 4.0. The length, the width and the area of follicles were measured. The follicles were divided into three groups after this procedure (by the length); in each group were measured 20 thyreocytes. In group with intake 5 mg I*kg DM−1 (experiment from year 2010): higher weight of thyroid (p < 0.01), significant higher (p < 0.05) proportional representation of large and medium follicles, significantly (p < 0.05) higher average size of follicles, demonstrably lower (p < 0.05) height of epithelium were found. There were not found any differences in monitored parameters between the groups from experiment which was carried out during the year 2011. After comparing results from the both experiments significantly higher percentage representation of large follicles a significantly lower representation of small follicles, distinctly higher average size and higher height of epithelium in all size categories, in groups with iodine intake 10 mg I*kg DM−1was found (from second experiment – year 2011).https://acta.mendelu.cz/61/5/1365/follicleepitheliumthyreocyterapeseed mealnitratesmorphometry |
| spellingShingle | Zdeněk Peksa Jan Trávníček Roman Konečný František Jelínek Hana Dušová Kateřina Volfová Aneta Vrbová Luboš Zábranský Daniel Falta Václav Pálka The effect of iodine and strumigens long-term foodborne intake on histometrical parameters of thyroid gland in gimmers Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis follicle epithelium thyreocyte rapeseed meal nitrates morphometry |
| title | The effect of iodine and strumigens long-term foodborne intake on histometrical parameters of thyroid gland in gimmers |
| title_full | The effect of iodine and strumigens long-term foodborne intake on histometrical parameters of thyroid gland in gimmers |
| title_fullStr | The effect of iodine and strumigens long-term foodborne intake on histometrical parameters of thyroid gland in gimmers |
| title_full_unstemmed | The effect of iodine and strumigens long-term foodborne intake on histometrical parameters of thyroid gland in gimmers |
| title_short | The effect of iodine and strumigens long-term foodborne intake on histometrical parameters of thyroid gland in gimmers |
| title_sort | effect of iodine and strumigens long term foodborne intake on histometrical parameters of thyroid gland in gimmers |
| topic | follicle epithelium thyreocyte rapeseed meal nitrates morphometry |
| url | https://acta.mendelu.cz/61/5/1365/ |
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