Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit
Joint Authors
Gasteiner, J.
Häusler, J.
Steinwidder, A.
Guggenberger, T.
Source
Veterinary Medicine International
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-05
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Gasteiner, J.& Guggenberger, T.& Häusler, J.& Steinwidder, A.. 2012. Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit. Veterinary Medicine International،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-456202
Modern Language Association (MLA)
Gasteiner, J.…[et al.]. Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit. Veterinary Medicine International No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-456202
American Medical Association (AMA)
Gasteiner, J.& Guggenberger, T.& Häusler, J.& Steinwidder, A.. Continuous and Long-Term Measurement of Reticuloruminal pH in Grazing Dairy Cows by an Indwelling and Wireless Data Transmitting Unit. Veterinary Medicine International. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-456202
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-456202