Prevalence of gastrointestinal nematodes in winter slaughtered reindeer of northern Finland
The objective of this study was to determine the prevalence and intensity of gastrointestinal nematodes in winter-slaughtered reindeer during 2002-2004, from northern reindeer herding cooperatives in Finland. Ostertagia gruehneri of the abomasum was prevalent with low levels of infections in 100% of...
Published in: | Rangifer |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Septentrio Academic Publishing
2009
|
Subjects: | |
Online Access: | https://septentrio.uit.no/index.php/rangifer/article/view/194 https://doi.org/10.7557/2.27.2.194 |
id |
ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/194 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
arrested development Nematodirinae Ostertagia gruehneri parasites semi-domesticated reindeer |
spellingShingle |
arrested development Nematodirinae Ostertagia gruehneri parasites semi-domesticated reindeer Hrabok, Jackie T. Oksanen, Antti Nieminen, Mauri Waller, Peter J. Prevalence of gastrointestinal nematodes in winter slaughtered reindeer of northern Finland |
topic_facet |
arrested development Nematodirinae Ostertagia gruehneri parasites semi-domesticated reindeer |
description |
The objective of this study was to determine the prevalence and intensity of gastrointestinal nematodes in winter-slaughtered reindeer during 2002-2004, from northern reindeer herding cooperatives in Finland. Ostertagia gruehneri of the abomasum was prevalent with low levels of infections in 100% of calves, (n = 53; mean ≈ 1300 worms per animal) and in 98% of adults, (n = 41; mean ≈ 3900 worms per animal). There was no difference in the number of O. gruehneri between male and female calves. The proportion of O. gruehneri inhibited larvae was significantly higher in calves (81%) than in adult reindeer (39%) (P = 0.005). The intestinal nematodes, Nematodirus tarandi and Nematodirella longispiculata, were detected only in reindeer calves. The numbers of these worms did not differ between male and female calves, but there was a difference in abundance between sites. High prevalence and low intensity of gastrointestinal nematodes characterized the patterns of infection of the reindeer examined in this study. It is assumed that these infections are sub-clinical and would not contribute to productivity losses.Abstract in Finnish / Lyhennelmä:Ruuansulatuskanavan sukkulamatojen esiintyminen talvella teurastetuissa pohjoissuomalaisissa poroissa Tämän työn tavoitteena oli määrittää ruuansulatuskanavan sukkulamatojen prevalenssi ja tartunnan aste talvella teurastetuissa Suomen pohjoisten paliskuntien poroissa vuosina 2002-2004. Juoksutusmahan Ostertagia gruehneri –loisella oli korkea prevalenssi, mutta infektion aste (matojen lukumäärä) oli melko matala; 100% vasoista oli infektoituneita (n = 53; keskimäärin 1300 matoa mahassa) ja 98% aikuisista (n = 41, keskimäärin 3900 matoa). Juoksutusmahamatojen määrissä ei ollut eroja naaras- ja urosvasojen välillä. Kehityksessään estyneiden (pysähtyneiden) O. gruehneri –matojen osuus oli tilastollisesti merkitsevästi korkeampi vasoilla (81%) kuin aikuisilla poroilla (39%) (P = 0.005). Suolistosukkulamatoja Nematodirus tarandi ja Nematodirella longispiculata tavattiin ainoastaan vasoilla. Näiden matojen määrä ei eronnut naaras- ja urosvasojen välillä, mutta maantieteellisiä eroja yleisyydessä havaittiin. Tutkimuksen poroille leimallinen loisten korkea prevalenssi ja matala infektioaste viittaa oireettomuuteen ja siihen, että ne ehkä eivät aiheuta tuotantotappioita. Abstract in Norwegian / Sammendrag: Prosentvis forekomst (prevalens) av rundmark (nematoder) i mage-tarm fra vinterslakta rein i nordlige Finland Studien ble gjennomført på rein (Rangifer tarandus tarandus) fra nordlige reindistrikter i Finland i perioden 2002 til 2004. Rundmarken Ostertagia gruehneri fra løpemagen var vanlig og fantes i lavt infeksjonsnivå (dvs. i relativt lite antall) i alle undersøkte kalver (100% forekomst i 53 dyr med et gjennomsnittlig antall marker per kalv på ca 1300) og i 98% av de 41 undersøkte voksne dyrene der gjennomsnittet per voksent dyr var ca 3900 marker. Andelen med hvilende (inhiberte) larver var statistisk sannsynlig høyere i kalver (81%) enn i voksen rein (39%) (P = 0.05). Tarmnematodene Nematodirus tarandi og Nematodirella longispiculata fantes bare i kalver. Her varierte prosentvis infeksjon fra 25% til 100% i flokkene. Det var ingen forskjell i intensitet (antall mark) mellom han- og hunkalver. Høy prevalens og lav intensitet var det karakteristiske infeksjonsmønsteret i denne studien. Vi antar derfor at infeksjonene er ubetydelige (er subkliniske) og at de ikke vil bidra til produksjonstap. |
format |
Article in Journal/Newspaper |
author |
Hrabok, Jackie T. Oksanen, Antti Nieminen, Mauri Waller, Peter J. |
author_facet |
Hrabok, Jackie T. Oksanen, Antti Nieminen, Mauri Waller, Peter J. |
author_sort |
Hrabok, Jackie T. |
title |
Prevalence of gastrointestinal nematodes in winter slaughtered reindeer of northern Finland |
title_short |
Prevalence of gastrointestinal nematodes in winter slaughtered reindeer of northern Finland |
title_full |
Prevalence of gastrointestinal nematodes in winter slaughtered reindeer of northern Finland |
title_fullStr |
Prevalence of gastrointestinal nematodes in winter slaughtered reindeer of northern Finland |
title_full_unstemmed |
Prevalence of gastrointestinal nematodes in winter slaughtered reindeer of northern Finland |
title_sort |
prevalence of gastrointestinal nematodes in winter slaughtered reindeer of northern finland |
publisher |
Septentrio Academic Publishing |
publishDate |
2009 |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/194 https://doi.org/10.7557/2.27.2.194 |
long_lat |
ENVELOPE(23.817,23.817,65.583,65.583) ENVELOPE(25.986,25.986,65.588,65.588) |
geographic |
Korkea Matala |
geographic_facet |
Korkea Matala |
genre |
Northern Finland Rangifer Rangifer tarandus |
genre_facet |
Northern Finland Rangifer Rangifer tarandus |
op_source |
Rangifer; Årg 27 Nr 2 (2007); 133-139 Rangifer; Vol 27 No 2 (2007); 133-139 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/194/177 https://septentrio.uit.no/index.php/rangifer/article/view/194 doi:10.7557/2.27.2.194 |
op_rights |
Copyright (c) 2015 Jackie T. Hrabok, Antti Oksanen, Mauri Nieminen, Peter J. Waller http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.27.2.194 |
container_title |
Rangifer |
container_volume |
27 |
container_issue |
2 |
container_start_page |
133 |
_version_ |
1766144912243294208 |
spelling |
ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/194 2023-05-15T17:42:58+02:00 Prevalence of gastrointestinal nematodes in winter slaughtered reindeer of northern Finland Hrabok, Jackie T. Oksanen, Antti Nieminen, Mauri Waller, Peter J. 2009-01-28 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/194 https://doi.org/10.7557/2.27.2.194 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/194/177 https://septentrio.uit.no/index.php/rangifer/article/view/194 doi:10.7557/2.27.2.194 Copyright (c) 2015 Jackie T. Hrabok, Antti Oksanen, Mauri Nieminen, Peter J. Waller http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Årg 27 Nr 2 (2007); 133-139 Rangifer; Vol 27 No 2 (2007); 133-139 1890-6729 arrested development Nematodirinae Ostertagia gruehneri parasites semi-domesticated reindeer info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2009 ftunitroemsoe https://doi.org/10.7557/2.27.2.194 2021-08-16T14:16:49Z The objective of this study was to determine the prevalence and intensity of gastrointestinal nematodes in winter-slaughtered reindeer during 2002-2004, from northern reindeer herding cooperatives in Finland. Ostertagia gruehneri of the abomasum was prevalent with low levels of infections in 100% of calves, (n = 53; mean ≈ 1300 worms per animal) and in 98% of adults, (n = 41; mean ≈ 3900 worms per animal). There was no difference in the number of O. gruehneri between male and female calves. The proportion of O. gruehneri inhibited larvae was significantly higher in calves (81%) than in adult reindeer (39%) (P = 0.005). The intestinal nematodes, Nematodirus tarandi and Nematodirella longispiculata, were detected only in reindeer calves. The numbers of these worms did not differ between male and female calves, but there was a difference in abundance between sites. High prevalence and low intensity of gastrointestinal nematodes characterized the patterns of infection of the reindeer examined in this study. It is assumed that these infections are sub-clinical and would not contribute to productivity losses.Abstract in Finnish / Lyhennelmä:Ruuansulatuskanavan sukkulamatojen esiintyminen talvella teurastetuissa pohjoissuomalaisissa poroissa Tämän työn tavoitteena oli määrittää ruuansulatuskanavan sukkulamatojen prevalenssi ja tartunnan aste talvella teurastetuissa Suomen pohjoisten paliskuntien poroissa vuosina 2002-2004. Juoksutusmahan Ostertagia gruehneri –loisella oli korkea prevalenssi, mutta infektion aste (matojen lukumäärä) oli melko matala; 100% vasoista oli infektoituneita (n = 53; keskimäärin 1300 matoa mahassa) ja 98% aikuisista (n = 41, keskimäärin 3900 matoa). Juoksutusmahamatojen määrissä ei ollut eroja naaras- ja urosvasojen välillä. Kehityksessään estyneiden (pysähtyneiden) O. gruehneri –matojen osuus oli tilastollisesti merkitsevästi korkeampi vasoilla (81%) kuin aikuisilla poroilla (39%) (P = 0.005). Suolistosukkulamatoja Nematodirus tarandi ja Nematodirella longispiculata tavattiin ainoastaan vasoilla. Näiden matojen määrä ei eronnut naaras- ja urosvasojen välillä, mutta maantieteellisiä eroja yleisyydessä havaittiin. Tutkimuksen poroille leimallinen loisten korkea prevalenssi ja matala infektioaste viittaa oireettomuuteen ja siihen, että ne ehkä eivät aiheuta tuotantotappioita. Abstract in Norwegian / Sammendrag: Prosentvis forekomst (prevalens) av rundmark (nematoder) i mage-tarm fra vinterslakta rein i nordlige Finland Studien ble gjennomført på rein (Rangifer tarandus tarandus) fra nordlige reindistrikter i Finland i perioden 2002 til 2004. Rundmarken Ostertagia gruehneri fra løpemagen var vanlig og fantes i lavt infeksjonsnivå (dvs. i relativt lite antall) i alle undersøkte kalver (100% forekomst i 53 dyr med et gjennomsnittlig antall marker per kalv på ca 1300) og i 98% av de 41 undersøkte voksne dyrene der gjennomsnittet per voksent dyr var ca 3900 marker. Andelen med hvilende (inhiberte) larver var statistisk sannsynlig høyere i kalver (81%) enn i voksen rein (39%) (P = 0.05). Tarmnematodene Nematodirus tarandi og Nematodirella longispiculata fantes bare i kalver. Her varierte prosentvis infeksjon fra 25% til 100% i flokkene. Det var ingen forskjell i intensitet (antall mark) mellom han- og hunkalver. Høy prevalens og lav intensitet var det karakteristiske infeksjonsmønsteret i denne studien. Vi antar derfor at infeksjonene er ubetydelige (er subkliniske) og at de ikke vil bidra til produksjonstap. Article in Journal/Newspaper Northern Finland Rangifer Rangifer tarandus University of Tromsø: Septentrio Academic Publishing Korkea ENVELOPE(23.817,23.817,65.583,65.583) Matala ENVELOPE(25.986,25.986,65.588,65.588) Rangifer 27 2 133 |