Effects of koccidiae- and nematode infections in first-year grazing calves
Twenty-four calves, which had not grazed previously, were divided into four groups. They were subsequently inoculated orally with either E. alabamensis oocysts, O.ostertagi/C. oncophora larvae, or both. One group remained uninfected and was used as a control. Following inoculation the animals were r...
| Autor principal: | |
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| Formato: | L3 |
| Lenguaje: | sueco Inglés |
| Publicado: |
SLU/Dept. of Biomedical Sciences and Veterinary Public Health (until 231231)
2008
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| Materias: |
| _version_ | 1855571878650839040 |
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| author | Gustafsson, Fredrika |
| author_browse | Gustafsson, Fredrika |
| author_facet | Gustafsson, Fredrika |
| author_sort | Gustafsson, Fredrika |
| collection | Epsilon Archive for Student Projects |
| description | Twenty-four calves, which had not grazed previously, were divided into four groups. They were subsequently inoculated orally with either E. alabamensis oocysts, O.ostertagi/C. oncophora larvae, or both. One group remained uninfected and was used as a control. Following inoculation the animals were released into clean, equal grazing paddocks. During the following 10 weeks, the calves were regularly weighed, and faeces samples were collected and examined for oocysts and eggs. After grazing season, the groups were statistically compared with respects to weight gain and degree of parasites in faeces. Clear clinical evidence of negative impact from E. alabamensis infection was found, alongside with a tendency for these individuals to gain less weight compared to uninfected or solely nematode infected calves. |
| format | L3 |
| id | RepoSLU11466 |
| institution | Swedish University of Agricultural Sciences |
| language | swe Inglés |
| publishDate | 2008 |
| publishDateSort | 2008 |
| publisher | SLU/Dept. of Biomedical Sciences and Veterinary Public Health (until 231231) |
| publisherStr | SLU/Dept. of Biomedical Sciences and Veterinary Public Health (until 231231) |
| record_format | eprints |
| spelling | RepoSLU114662017-10-04T12:47:09Z Effects of koccidiae- and nematode infections in first-year grazing calves Effekter av koccidie-och nematodinfektion hos förstagångsbetande kalvar Gustafsson, Fredrika betesparasiter koccidios diarré E. alabamensis inokulering Twenty-four calves, which had not grazed previously, were divided into four groups. They were subsequently inoculated orally with either E. alabamensis oocysts, O.ostertagi/C. oncophora larvae, or both. One group remained uninfected and was used as a control. Following inoculation the animals were released into clean, equal grazing paddocks. During the following 10 weeks, the calves were regularly weighed, and faeces samples were collected and examined for oocysts and eggs. After grazing season, the groups were statistically compared with respects to weight gain and degree of parasites in faeces. Clear clinical evidence of negative impact from E. alabamensis infection was found, alongside with a tendency for these individuals to gain less weight compared to uninfected or solely nematode infected calves. Ett fältförsök genomfördes sommaren 2004 på en kommersiell gård i Sörmland. Tjugofyra kalvar som tidigare inte gått på bete delades in i fyra grupper varefter de inokulerades peroralt med antingen beteskoccidien E. alabamensis, mag/tarmnematoderna O. ostertagi och C. oncophora eller både koccidier och nematoder. En grupp behölls oinfekterad som kontroll. Efter inokulering släpptes djuren i rena, likvärdiga betesfållor. Under 10 veckor vägdes kalvarna regelbundet samt övervakades för allmäntillstånd och provtogs för beräkning av utskiljda koccidieoocystor och nematodägg. Många av kalvarna, särskilt de koccidieinfekterade, utvecklade lindrig till kraftig diarré efter några dagar och de mest nedsatta behandlades peroralt med elektrolytlösning mot dehydrering. Efter betessäsongen jämfördes de olika gruppernas viktkurvor och grad av parasiturskiljning för att visa på effekterna av den kända infektionsdosen och eventuella bieffekter av saminfektion mellan koccidier och nematoder. Klara kliniska indikationer på negativ effekt av koccidieinfektion av aktuell grad påvisades, samtidigt som viktjämförelserna visade en tendens till att koccidieinfekterade kalvar halkar efter viktmässigt jämfört med både kontrollgrupp och nematodinfekterade kalvar. SLU/Dept. of Biomedical Sciences and Veterinary Public Health (until 231231) 2008 L3 swe eng https://stud.epsilon.slu.se/11466/ |
| spellingShingle | betesparasiter koccidios diarré E. alabamensis inokulering Gustafsson, Fredrika Effects of koccidiae- and nematode infections in first-year grazing calves |
| title | Effects of koccidiae- and nematode infections in first-year grazing calves |
| title_full | Effects of koccidiae- and nematode infections in first-year grazing calves |
| title_fullStr | Effects of koccidiae- and nematode infections in first-year grazing calves |
| title_full_unstemmed | Effects of koccidiae- and nematode infections in first-year grazing calves |
| title_short | Effects of koccidiae- and nematode infections in first-year grazing calves |
| title_sort | effects of koccidiae- and nematode infections in first-year grazing calves |
| topic | betesparasiter koccidios diarré E. alabamensis inokulering |