Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit
The aim of the present study was the continuous measurement of ruminal pH in grazing dairy cows to monitor the diets effects on ruminal pH value. A novel indwelling pH-measurement and data transmitting system was given to 6 multiparous cows orally. Ruminal pH was measured every 600 sec over a 40 d p...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Veterinary Medicine International |
| Online Access: | http://dx.doi.org/10.1155/2012/236956 |
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| author | J. Gasteiner T. Guggenberger J. Häusler A. Steinwidder |
| author_facet | J. Gasteiner T. Guggenberger J. Häusler A. Steinwidder |
| author_sort | J. Gasteiner |
| collection | DOAJ |
| description | The aim of the present study was the continuous measurement of ruminal pH in grazing dairy cows to monitor the diets effects on ruminal pH value. A novel indwelling pH-measurement and data transmitting system was given to 6 multiparous cows orally. Ruminal pH was measured every 600 sec over a 40 d period. After barn feeding and changeover to pasture, the following 3 treatments (2 cows/treatment) were included in the measurement period: continuous grazing (G), continuous grazing plus 4 kg/d of hay fed twice daily (GH), and continuous grazing plus 4 kg/d of concentrate (GC). Ruminal pH decreased significantly (P<0.05) from 6.58±0.15 to pH 6.19±0.19 during feed changeover to pasture. Mean ruminal pH for G, GH, and GC was 6.36, 6.56, and 6.01. Mean 24-h minimum pH was 5.95, 6.20 and, 5.58. The time pH was below 6.3, 6.0, 5.8, and 5.5, for G it was 583, 91, 26, and 3 min/d, for GH it was 97, 12, 0, and 0 min/d and for GC it was 1126, 621, 347, and 101 min/d, respectively. Results were significantly influenced by the diet. The indwelling pH-measurement and data transmitting system is a very useful and proper tool for long-term measurement of ruminal pH in cows. |
| format | Article |
| id | doaj-art-99cfca9cfcef4e6a84667f77756fbd07 |
| institution | Kabale University |
| issn | 2090-8113 2042-0048 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Veterinary Medicine International |
| spelling | doaj-art-99cfca9cfcef4e6a84667f77756fbd072025-02-03T05:59:41ZengWileyVeterinary Medicine International2090-81132042-00482012-01-01201210.1155/2012/236956236956Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting UnitJ. Gasteiner0T. Guggenberger1J. Häusler2A. Steinwidder3Federal Agricultural Research and Education Centre Raumberg-Gumpenstein, Institute of Farm Animal Welfare and Farm Animal Health, A-8952 Irdning, AustriaFederal Agricultural Research and Education Centre Raumberg-Gumpenstein, Institute of Farm Animal Welfare and Farm Animal Health, A-8952 Irdning, AustriaFederal Agricultural Research and Education Centre Raumberg-Gumpenstein, Institute of Farm Animal Welfare and Farm Animal Health, A-8952 Irdning, AustriaFederal Agricultural Research and Education Centre Raumberg-Gumpenstein, Institute of Farm Animal Welfare and Farm Animal Health, A-8952 Irdning, AustriaThe aim of the present study was the continuous measurement of ruminal pH in grazing dairy cows to monitor the diets effects on ruminal pH value. A novel indwelling pH-measurement and data transmitting system was given to 6 multiparous cows orally. Ruminal pH was measured every 600 sec over a 40 d period. After barn feeding and changeover to pasture, the following 3 treatments (2 cows/treatment) were included in the measurement period: continuous grazing (G), continuous grazing plus 4 kg/d of hay fed twice daily (GH), and continuous grazing plus 4 kg/d of concentrate (GC). Ruminal pH decreased significantly (P<0.05) from 6.58±0.15 to pH 6.19±0.19 during feed changeover to pasture. Mean ruminal pH for G, GH, and GC was 6.36, 6.56, and 6.01. Mean 24-h minimum pH was 5.95, 6.20 and, 5.58. The time pH was below 6.3, 6.0, 5.8, and 5.5, for G it was 583, 91, 26, and 3 min/d, for GH it was 97, 12, 0, and 0 min/d and for GC it was 1126, 621, 347, and 101 min/d, respectively. Results were significantly influenced by the diet. The indwelling pH-measurement and data transmitting system is a very useful and proper tool for long-term measurement of ruminal pH in cows.http://dx.doi.org/10.1155/2012/236956 |
| spellingShingle | J. Gasteiner T. Guggenberger J. Häusler A. Steinwidder Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit Veterinary Medicine International |
| title | Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit |
| title_full | Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit |
| title_fullStr | Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit |
| title_full_unstemmed | Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit |
| title_short | Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit |
| title_sort | continuous and long term measurement of reticuloruminal ph in grazing dairy cows by an indwelling and wireless data transmitting unit |
| url | http://dx.doi.org/10.1155/2012/236956 |
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