The mink (Mustela vison) as an indicator of environmental reproductive toxicology
There is a substantial amount of chemicals in our environment and the exposure is continuous over time. It is generally unknown whether these pollutants synergistically or additatively affect human and environmental health. The reproductive system is known to be one of the most pollutant-sensitive p...
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| Format: | L3 |
| Language: | Inglés Swedish |
| Published: |
SLU/Dept. of Clinical Sciences (until 231231)
2007
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| Subjects: |
| _version_ | 1855571921989533696 |
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| author | Persson, Sara |
| author_browse | Persson, Sara |
| author_facet | Persson, Sara |
| author_sort | Persson, Sara |
| collection | Epsilon Archive for Student Projects |
| description | There is a substantial amount of chemicals in our environment and the exposure is continuous over time. It is generally unknown whether these pollutants synergistically or additatively affect human and environmental health. The reproductive system is known to be one of the most pollutant-sensitive physiological systems; therefore signs related to reproductive and developmental toxicity may be one of the earliest indications of environmental chemical impact. For instance, PCB and different oestrogenous substances at low doses are known to affect the reproductive system, in mink as well as in other species. The pollutants will sooner or later end up in streams, lakes and seas where they will bioaccumulate in fish and other aquatic species, making piscivorous animals like the mink highly exposed. Therefore, the mink is suitable as a sentinel species. Also, the general knowledge about mink and mink reproduction has been thoroughly studied since the mink has been kept in fur farms for over a hundred years. In this study, a set of parameters with emphasis on morphological reproductive parameters was analyzed post mortem on frozen/thawed material. The reproducibility of the parameters was assessed by repeated measurements in the same animal. Several of the parameters were found to be reproducible and robust enough to be used in future environmental monitoring. |
| format | L3 |
| id | RepoSLU11700 |
| institution | Swedish University of Agricultural Sciences |
| language | Inglés swe |
| publishDate | 2007 |
| publishDateSort | 2007 |
| publisher | SLU/Dept. of Clinical Sciences (until 231231) |
| publisherStr | SLU/Dept. of Clinical Sciences (until 231231) |
| record_format | eprints |
| spelling | RepoSLU117002017-11-23T12:41:51Z The mink (Mustela vison) as an indicator of environmental reproductive toxicology Mink (Mustela vison) som indikatorart för reproduktionstoxis ka miljögifter Persson, Sara mink reproduction toxicology There is a substantial amount of chemicals in our environment and the exposure is continuous over time. It is generally unknown whether these pollutants synergistically or additatively affect human and environmental health. The reproductive system is known to be one of the most pollutant-sensitive physiological systems; therefore signs related to reproductive and developmental toxicity may be one of the earliest indications of environmental chemical impact. For instance, PCB and different oestrogenous substances at low doses are known to affect the reproductive system, in mink as well as in other species. The pollutants will sooner or later end up in streams, lakes and seas where they will bioaccumulate in fish and other aquatic species, making piscivorous animals like the mink highly exposed. Therefore, the mink is suitable as a sentinel species. Also, the general knowledge about mink and mink reproduction has been thoroughly studied since the mink has been kept in fur farms for over a hundred years. In this study, a set of parameters with emphasis on morphological reproductive parameters was analyzed post mortem on frozen/thawed material. The reproducibility of the parameters was assessed by repeated measurements in the same animal. Several of the parameters were found to be reproducible and robust enough to be used in future environmental monitoring. Det finns en mycket stor mängd kemikalier i vår miljö och vardag, och de flesta hamnar förr eller senare i vatten och ackumuleras och möjligtvis biomagnifieras i fiskar och andra djur genom näringskedjan. På vilket sätt alla dessa kemikalier sammantaget påverkar människor och djurs hälsa är ofullständigt känt. Reproduktionssystemet har i ett flertal fall visat sig vara ett av de känsligaste fysiologiska system vad gäller påverkan från kemikalier. Reproduktionsstörningar är således många gånger det första tecknet på en förorenad miljö. Exempelvis finns det studier som visar att ämnen som PCB och olika östrogena substanser i låga doser kan påverka kroppens fortplantningssystem. Minken lever vattennära och är högt upp i näringskedjan, vilket gör den till en potentiellt högexponerad djurart och därför lämplig för att studera effekter på reproduktionssystemet av kemikalier i miljön. Eftersom minken har varit farmad i många år är den sammanlagda kunskapsbasen kring minkens biologi omfattande och reproduktionssystemet är utförligt studerat. I den här studien utvärderades ett antal parametrar, framför allt morfologiska reproduktionsparametrar, avseende vilka som kan analyseras post mortem på fryst material samt hur reproducerbara mätningarna är. Reproducerbarheten bedömdes genom att utföra upprepade mätningar för en parameter på samma djur. Ett flertal av parametrarna visade sig vara tillräckligt robusta för att användas i framtida miljöövervakning. SLU/Dept. of Clinical Sciences (until 231231) 2007 L3 eng swe https://stud.epsilon.slu.se/11700/ |
| spellingShingle | mink reproduction toxicology Persson, Sara The mink (Mustela vison) as an indicator of environmental reproductive toxicology |
| title | The mink (Mustela vison) as an indicator of environmental reproductive toxicology |
| title_full | The mink (Mustela vison) as an indicator of environmental reproductive toxicology |
| title_fullStr | The mink (Mustela vison) as an indicator of environmental reproductive toxicology |
| title_full_unstemmed | The mink (Mustela vison) as an indicator of environmental reproductive toxicology |
| title_short | The mink (Mustela vison) as an indicator of environmental reproductive toxicology |
| title_sort | mink (mustela vison) as an indicator of environmental reproductive toxicology |
| topic | mink reproduction toxicology |