Islandshästar med hosta och/eller prestationsnedsättning
The purpose of the study was to investigate whether or not Icelandic horses are less severely affected in clinical symptoms of cough or decreased performance than other breeds of horses. A breed variation in chronic respiratory disease severity was suspected based on clinical experience at the In...
| Autor principal: | |
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| Formato: | Otro |
| Lenguaje: | sueco sueco |
| Publicado: |
2005
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| Materias: | |
| Acceso en línea: | https://stud.epsilon.slu.se/11520/ |
| _version_ | 1855571888309272576 |
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| author | Larsson, Kristin |
| author_browse | Larsson, Kristin |
| author_facet | Larsson, Kristin |
| author_sort | Larsson, Kristin |
| collection | Epsilon Archive for Student Projects |
| description | The purpose of the study was to investigate whether or not Icelandic horses are
less severely affected in clinical symptoms of cough or decreased performance
than other breeds of horses. A breed variation in chronic respiratory disease
severity was suspected based on clinical experience at the Institution for surgery &
medicine, large animal, SLU Uppsala. A retrospective journal study of 17
Icelandic horses and 17 Swedish Standardbred horses with chronic problems with
cough and/or decreased performance compared several measurements of disease
severity.
The clinical signs, physical examination and laboratory testing results compared
were respiratory rate, abdominal breathing, lung auscultation, endoscopy results,
broncho-alveolar lavage (BAL) results and the blood gases pO2 and pCO2. All
parameters were available for all 34 individuals except for the blood gases, which
were analysed, in only four Icelandic horses and four Swedish Standardbred
horses.
The only parameters that appeared different between the two groups were
respiratory rate and pO2. The four Icelandic horses, which had blood gases
analysed, had more severe hypoxemia. But all had a greater inflammatory process
in the lower airways as shown by the increased neutrophils in the BAL results
compared to the 4 Standardbred horses. There was no difference between the 2
breeds of horse in the number of neutrophils in the BAL tests when all 17 horses in
each group were compared, therefore it is likely that if one compared Icelandic
horses with Standardbred horses having similarly severe inflammation there may
not have been a difference. We did not have the opportunity to compare blood
gases among individuals with equally severe inflammation as good controls. The
difference in hypoxemia in only 4 horses with especially severe disease was thus
not considered good proof of a difference between the 2 breeds.
The mean respiratory rate was different between the two groups. Mean respiratory
rate among the 17 Icelandic horses were 31,0 ± 9,7 compared with 16,8 ± 4,3
among the 17 Swedish Standardbred horses. In order to further consider this
difference, the respiratory rate was measured in 23 clinical healthy Icelandic
horses housed outside. The mean result was 16,4 ± 3,6. This is above than range
accepted as the normal respiratory rate for horses of 8-16 per minute. This suggests
Icelandic horses appear to have a higher respiratory rate normally and this may be
exaggerated when they are examined inside where it is warmer. The higher
respiratory rate among the 17 Icelandic horses in this study may only be mainly a
breed variation and not necessarily indicate that they are more severely affected
during chronic respiratory problems.
Our conclusion was that there was insufficient proof found in a more controlled
study to indicate that Icelandic horses are less severely affected by chronic
respiratory disease that appeared as the clinical problems of cough or decreased
performance. Further studies on respiratory rate and blood gas analysis may be
useful in understanding the two differences noted in our study. |
| format | Otro |
| id | RepoSLU11520 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish swe |
| publishDate | 2005 |
| publishDateSort | 2005 |
| record_format | eprints |
| spelling | RepoSLU115202017-10-03T11:13:57Z https://stud.epsilon.slu.se/11520/ Islandshästar med hosta och/eller prestationsnedsättning Larsson, Kristin Veterinary science and hygiene - General aspects Faculty of Veterinary Medicine and Animal Science The purpose of the study was to investigate whether or not Icelandic horses are less severely affected in clinical symptoms of cough or decreased performance than other breeds of horses. A breed variation in chronic respiratory disease severity was suspected based on clinical experience at the Institution for surgery & medicine, large animal, SLU Uppsala. A retrospective journal study of 17 Icelandic horses and 17 Swedish Standardbred horses with chronic problems with cough and/or decreased performance compared several measurements of disease severity. The clinical signs, physical examination and laboratory testing results compared were respiratory rate, abdominal breathing, lung auscultation, endoscopy results, broncho-alveolar lavage (BAL) results and the blood gases pO2 and pCO2. All parameters were available for all 34 individuals except for the blood gases, which were analysed, in only four Icelandic horses and four Swedish Standardbred horses. The only parameters that appeared different between the two groups were respiratory rate and pO2. The four Icelandic horses, which had blood gases analysed, had more severe hypoxemia. But all had a greater inflammatory process in the lower airways as shown by the increased neutrophils in the BAL results compared to the 4 Standardbred horses. There was no difference between the 2 breeds of horse in the number of neutrophils in the BAL tests when all 17 horses in each group were compared, therefore it is likely that if one compared Icelandic horses with Standardbred horses having similarly severe inflammation there may not have been a difference. We did not have the opportunity to compare blood gases among individuals with equally severe inflammation as good controls. The difference in hypoxemia in only 4 horses with especially severe disease was thus not considered good proof of a difference between the 2 breeds. The mean respiratory rate was different between the two groups. Mean respiratory rate among the 17 Icelandic horses were 31,0 ± 9,7 compared with 16,8 ± 4,3 among the 17 Swedish Standardbred horses. In order to further consider this difference, the respiratory rate was measured in 23 clinical healthy Icelandic horses housed outside. The mean result was 16,4 ± 3,6. This is above than range accepted as the normal respiratory rate for horses of 8-16 per minute. This suggests Icelandic horses appear to have a higher respiratory rate normally and this may be exaggerated when they are examined inside where it is warmer. The higher respiratory rate among the 17 Icelandic horses in this study may only be mainly a breed variation and not necessarily indicate that they are more severely affected during chronic respiratory problems. Our conclusion was that there was insufficient proof found in a more controlled study to indicate that Icelandic horses are less severely affected by chronic respiratory disease that appeared as the clinical problems of cough or decreased performance. Further studies on respiratory rate and blood gas analysis may be useful in understanding the two differences noted in our study. Syftet med arbetet var att undersöka om islandshästar avviker från övriga hästraser vad avser klinisk status vid symptom på hosta och/eller prestationsnedsättning. Det misstänktes vid institutionen för kirurgi & medicin stordjur, SLU Uppsala, baserat på klinisk erfarenhet att islandshästar har mildare symptom och färre avvikande undersökningsresultat vid detta problem jämfört övriga hästraser. I denna retrospektiva journalstudie av 17 stycken islandshästar och 17 stycken svenska halvblod med långvariga problem med hosta och/eller andningssvårigheter jämfördes symptom, laboratorie- och undersökningsresultat från journalerna. Andningsfrekvens, bukpress, lungauskultation, endoskoperingsresultat, BALresultat och blodgaserna PO2 och PCO2 jämfördes. Samtliga parametrar gick att jämföra hos de 34 individerna utom blodgaser som bara var analyserat hos fyra islandshästar och fyra svenska halvblod. De enda parametrarna som skiljde sig åt var andningsfrekvens och PO2. De fyra islandshästarna där blodgaser var analyserade hade samtliga en mer allvarlig hypoxemi jämfört de 4 svenska halvbloden, men de hade också en större inflammatorisk process i de nedre luftvägarna enligt antalet neutrofiler och totalantalet celler i BAL. Om vi hade haft möjlighet att jämföra blodgaser hos individer med lika stort antal neutrofiler i BAL hade en skillnad troligtvis inte påvisats, då det inte fanns någon skillnad mellan de två raserna generellt vad beträffar totalantalet celler och procent neutrofiler i BAL när alla 34 hästarna jämfördes. Vi hade inte möjlighet att jämföra blodgaser hos individer med lika stort inflammatoriskt svar då materialet var för litet. Andningsfrekvensen skiljde sig åt signifikant mellan de olika rasgrupperna (p=0, 0001). Medelandningsfrekvensen hos de 17 islandshästarna var 31,0 ± 9,7 andetag per minut jämfört med 16,8 ± 4,3 hos de 17 svenska halvbloden. För att följa upp resultatet studerades andningsfrekvensen hos 23 stycken kliniskt friska islandshästar utomhus. Resultatet var en andningsfrekvens på 16,4 ± 3,6. Detta är något högre än vad som anses vara en normal andningsfrekvens, 8-16 andetag per minut, hos häst. Enligt denna studie verkar islandshästar ha en något högre andningsfrekvens normalt utan kliniska tecken på sjukdom. Andningfrekvensen kan sedan stiga ytterligare när islandshästen undersöks inomhus där både värme och stress påverkar. Den högre andningsfrekvensen hos de 17 islandshästarna i denna studie kan vara en rasvariation och behöver nödvändigtvis inte indikera en mer allvarlig bild vid de kroniska luftvägsproblemen. Slutsatsen av denna kontrollerade studie är att det inte finns några bevis för att islandshästar har färre och/eller mindre allvarliga kliniska fynd vid problem med långvarig hosta och/eller prestationsnedsättning. Fortsatta studier av andningsfrekvens och blodgasanalyser skulle hjälpa oss att bättre förstå skillnaderna noterade i denna studie. 2005-01-24 Other NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/11520/1/larsson_k_171003.pdf Larsson, Kristin, 2005. Islandshästar med hosta och/eller prestationsnedsättning : skiljer de sig åt jämfört med andra raser?. UNSPECIFIED, Uppsala. Uppsala: (VH) > Dept. of Biomedical Sciences and Veterinary Public Health (until 231231) <https://stud.epsilon.slu.se/view/divisions/OID-713.html> urn:nbn:se:slu:epsilon-s-7448 swe |
| spellingShingle | Veterinary science and hygiene - General aspects Faculty of Veterinary Medicine and Animal Science Larsson, Kristin Islandshästar med hosta och/eller prestationsnedsättning |
| title | Islandshästar med hosta och/eller prestationsnedsättning |
| title_full | Islandshästar med hosta och/eller prestationsnedsättning |
| title_fullStr | Islandshästar med hosta och/eller prestationsnedsättning |
| title_full_unstemmed | Islandshästar med hosta och/eller prestationsnedsättning |
| title_short | Islandshästar med hosta och/eller prestationsnedsättning |
| title_sort | islandshästar med hosta och/eller prestationsnedsättning |
| topic | Veterinary science and hygiene - General aspects Faculty of Veterinary Medicine and Animal Science |
| url | https://stud.epsilon.slu.se/11520/ https://stud.epsilon.slu.se/11520/ |