Composition of cultivable enteric bacteria from the intestine of Antarctic fish (family Nototheniidae)
Selenium (Se), copper (Cu), and zinc (Zn) play important antioxidant role during the transition period of dairy cattle. However, there is limited information about their blood fluctuations during the entire transition period, especially in heifers. Furthermore, it is questionable whether the use of...
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Czech Academy of Agricultural Sciences
2016-03-01
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Series: | Czech Journal of Animal Science |
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Online Access: | https://cjas.agriculturejournals.cz/artkey/cjs-201603-0004_composition-of-cultivable-enteric-bacteria-from-the-intestine-of-antarctic-fish-family-nototheniidae.php |
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author | I. Sedláček E. Staňková P. Švec |
author_facet | I. Sedláček E. Staňková P. Švec |
author_sort | I. Sedláček |
collection | DOAJ |
description | Selenium (Se), copper (Cu), and zinc (Zn) play important antioxidant role during the transition period of dairy cattle. However, there is limited information about their blood fluctuations during the entire transition period, especially in heifers. Furthermore, it is questionable whether the use of clinoptilolite, a natural zeolite, affects the availability of these trace elements during this period. The objective of the present study was to monitor the blood concentrations of Se, Cu, and Zn during the transition period of dairy heifers and to investigate whether the dietary inclusion of clinoptilolite has any effect on them. Forty clinically healthy Holstein heifers were used in the experiment. They were randomly allocated in two equal groups (n = 20) formed according to their body condition score. The control group was fed only the basal ration whereas the daily feed of treatment group was supplemented with 200 g clinoptilolite. The experiment started 28 days before the expected day of calving and lasted until day 21 after parturition. Blood samples were taken at the onset of the experiment and then at weekly intervals until parturition, at the day of calving, and on days 7, 14, and 21. All samples were analyzed for blood Se and plasma Cu and Zn concentrations. The results indicate that the levels of Se, Cu, and Zn in blood change significantly (P < 0.05) throughout the transition period in dairy heifers and increase significantly (P < 0.05) immediately after calving. Furthermore, the dietary administration of clinoptilolite does not significantly affect their blood concentration (P > 0.05). Blood levels of Se, Cu, and Zn, although undergoing significant changes throughout the transition period in dairy heifers, remain practically stable until parturition and increase significantly immediately after calving. Clinoptilolite does not impair the dietary availability of the trace elements evaluated when added in heifers' rations during this period. |
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issn | 1212-1819 1805-9309 |
language | English |
last_indexed | 2024-04-10T08:25:45Z |
publishDate | 2016-03-01 |
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spelling | doaj.art-0f551dac82b84e1b8d2822e1772d730a2023-02-23T03:33:24ZengCzech Academy of Agricultural SciencesCzech Journal of Animal Science1212-18191805-93092016-03-0161312713210.17221/8785-CJAScjs-201603-0004Composition of cultivable enteric bacteria from the intestine of Antarctic fish (family Nototheniidae)I. Sedláček0E. Staňková1P. Švec2Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech RepublicCzech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech RepublicCzech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech RepublicSelenium (Se), copper (Cu), and zinc (Zn) play important antioxidant role during the transition period of dairy cattle. However, there is limited information about their blood fluctuations during the entire transition period, especially in heifers. Furthermore, it is questionable whether the use of clinoptilolite, a natural zeolite, affects the availability of these trace elements during this period. The objective of the present study was to monitor the blood concentrations of Se, Cu, and Zn during the transition period of dairy heifers and to investigate whether the dietary inclusion of clinoptilolite has any effect on them. Forty clinically healthy Holstein heifers were used in the experiment. They were randomly allocated in two equal groups (n = 20) formed according to their body condition score. The control group was fed only the basal ration whereas the daily feed of treatment group was supplemented with 200 g clinoptilolite. The experiment started 28 days before the expected day of calving and lasted until day 21 after parturition. Blood samples were taken at the onset of the experiment and then at weekly intervals until parturition, at the day of calving, and on days 7, 14, and 21. All samples were analyzed for blood Se and plasma Cu and Zn concentrations. The results indicate that the levels of Se, Cu, and Zn in blood change significantly (P < 0.05) throughout the transition period in dairy heifers and increase significantly (P < 0.05) immediately after calving. Furthermore, the dietary administration of clinoptilolite does not significantly affect their blood concentration (P > 0.05). Blood levels of Se, Cu, and Zn, although undergoing significant changes throughout the transition period in dairy heifers, remain practically stable until parturition and increase significantly immediately after calving. Clinoptilolite does not impair the dietary availability of the trace elements evaluated when added in heifers' rations during this period.https://cjas.agriculturejournals.cz/artkey/cjs-201603-0004_composition-of-cultivable-enteric-bacteria-from-the-intestine-of-antarctic-fish-family-nototheniidae.phptrace elementszeoliteparturitiondairy cattle |
spellingShingle | I. Sedláček E. Staňková P. Švec Composition of cultivable enteric bacteria from the intestine of Antarctic fish (family Nototheniidae) Czech Journal of Animal Science trace elements zeolite parturition dairy cattle |
title | Composition of cultivable enteric bacteria from the intestine of Antarctic fish (family Nototheniidae) |
title_full | Composition of cultivable enteric bacteria from the intestine of Antarctic fish (family Nototheniidae) |
title_fullStr | Composition of cultivable enteric bacteria from the intestine of Antarctic fish (family Nototheniidae) |
title_full_unstemmed | Composition of cultivable enteric bacteria from the intestine of Antarctic fish (family Nototheniidae) |
title_short | Composition of cultivable enteric bacteria from the intestine of Antarctic fish (family Nototheniidae) |
title_sort | composition of cultivable enteric bacteria from the intestine of antarctic fish family nototheniidae |
topic | trace elements zeolite parturition dairy cattle |
url | https://cjas.agriculturejournals.cz/artkey/cjs-201603-0004_composition-of-cultivable-enteric-bacteria-from-the-intestine-of-antarctic-fish-family-nototheniidae.php |
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