Evaluation of the ruminal function of Belgian dairy cows suspected of subacute ruminal acidosis
| Autor: | Frédéric Rollin, Léonard Theron, Françoise Lessire, Emilie Knapp, Jean-Luc Hornick, Isabelle Dufrasne |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Alkalosis General Veterinary business.industry Dairy herds 0402 animal and dairy science 04 agricultural and veterinary sciences Methylene blue reduction test Ph measurement medicine.disease 040201 dairy & animal science Subacute ruminal acidosis 03 medical and health sciences 030104 developmental biology Animal science medicine Herd business |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0303-9021 |
| Popis: | Subacute ruminal acidosis (SARA) has been considered a major pathology in high producing dairy herds for years. These findings were corroborated by several studies in Europe. However, different feeding practices and herds’ production levels are found in Southern Belgium. This study aimed to ascertain whether dairy cows of several herds from the south of Belgium (Wallonia) with a suspicion of SARA really did present too low ruminal pH values. Twenty-four herds were visited and 172 cows were sampled using an oropharyngeal device to collect ruminal fluid, i.e. Geishauser probe. On the samples, three tests were performed: pH measurement, methylene blue reduction test and microscopic evaluation of protozoa vitality. Based on these analyses, no cows demonstrated pH values lower than 5.5 and, only ten cows could be considered at risk for SARA. By contrast, in eightteen cows, pH values higher than 7.0 were measured and ruminal inactivity was suspected. In this study, ruminal alkalosis appeared to be more frequently observed than SARA. |
| Databáze: | OpenAIRE |
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