Long-Term Recording of Reticulo-Rumen Myoelectrical Activity in Sheep by a Telemetry Method
The reticulum and rumen are considered a single functional unit (the reticulo-rumen) with regards to myoelectrical and contractile activities. The specialized contractions of the reticulo-rumen provide constant mixing of partially digested material (cycle A), its flow into the omasum during eructati...
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MDPI AG
2021-04-01
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| Online Access: | https://www.mdpi.com/2076-2615/11/4/1052 |
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| author | Małgorzata Wierzbicka Małgorzata Domino Romuald Zabielski Zdzisław Gajewski |
| author_facet | Małgorzata Wierzbicka Małgorzata Domino Romuald Zabielski Zdzisław Gajewski |
| author_sort | Małgorzata Wierzbicka |
| collection | DOAJ |
| description | The reticulum and rumen are considered a single functional unit (the reticulo-rumen) with regards to myoelectrical and contractile activities. The specialized contractions of the reticulo-rumen provide constant mixing of partially digested material (cycle A), its flow into the omasum during eructation (cycle B), and regurgitation-rumination (cycle C). This study aimed to investigate the feasibility of electromyography (EMG) registered by a long-term telemetry method for assessment of the basic reticulo-rumen myoelectrical activity in sheep, to develop the effective recognition of the reticulo-rumen cycles at rest with no food stimulation, and to investigate the relationship between cycles A, B, and C in such basic conditions. The experiment was carried out on nine ewes. Myoelectric activity of the rumen, reticulum, and abomasum was recorded by the combination of three silver bipolar electrodes and a 3-channel transmitter implant. The myoelectrical activity registered successfully in the reticulum and rumen was determined as three characteristic patterns of cycles A, B, and C. The percentage of each type of cycle changed at different intervals from equally cycles A (43–50%) and B (50–56%), occurring when cycle C was not observed to the domination of cycle C (57–73%) with a decrease of cycles A (6–14%) and B (20–28%). The long-term EMG telemetry registration is feasible in the assessment of the reticulo-rumen myoelectrical activity in sheep. |
| first_indexed | 2024-03-10T12:30:18Z |
| format | Article |
| id | doaj.art-d2c78496fe7b4a7f937212fda36c29ba |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T12:30:18Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj.art-d2c78496fe7b4a7f937212fda36c29ba2023-11-21T14:44:33ZengMDPI AGAnimals2076-26152021-04-01114105210.3390/ani11041052Long-Term Recording of Reticulo-Rumen Myoelectrical Activity in Sheep by a Telemetry MethodMałgorzata Wierzbicka0Małgorzata Domino1Romuald Zabielski2Zdzisław Gajewski3Department of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-797 Warsaw, PolandDepartment of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-797 Warsaw, PolandDepartment of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-797 Warsaw, PolandDepartment of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-797 Warsaw, PolandThe reticulum and rumen are considered a single functional unit (the reticulo-rumen) with regards to myoelectrical and contractile activities. The specialized contractions of the reticulo-rumen provide constant mixing of partially digested material (cycle A), its flow into the omasum during eructation (cycle B), and regurgitation-rumination (cycle C). This study aimed to investigate the feasibility of electromyography (EMG) registered by a long-term telemetry method for assessment of the basic reticulo-rumen myoelectrical activity in sheep, to develop the effective recognition of the reticulo-rumen cycles at rest with no food stimulation, and to investigate the relationship between cycles A, B, and C in such basic conditions. The experiment was carried out on nine ewes. Myoelectric activity of the rumen, reticulum, and abomasum was recorded by the combination of three silver bipolar electrodes and a 3-channel transmitter implant. The myoelectrical activity registered successfully in the reticulum and rumen was determined as three characteristic patterns of cycles A, B, and C. The percentage of each type of cycle changed at different intervals from equally cycles A (43–50%) and B (50–56%), occurring when cycle C was not observed to the domination of cycle C (57–73%) with a decrease of cycles A (6–14%) and B (20–28%). The long-term EMG telemetry registration is feasible in the assessment of the reticulo-rumen myoelectrical activity in sheep.https://www.mdpi.com/2076-2615/11/4/1052electromyographyrumenreticulumrumination cycleewes |
| spellingShingle | Małgorzata Wierzbicka Małgorzata Domino Romuald Zabielski Zdzisław Gajewski Long-Term Recording of Reticulo-Rumen Myoelectrical Activity in Sheep by a Telemetry Method Animals electromyography rumen reticulum rumination cycle ewes |
| title | Long-Term Recording of Reticulo-Rumen Myoelectrical Activity in Sheep by a Telemetry Method |
| title_full | Long-Term Recording of Reticulo-Rumen Myoelectrical Activity in Sheep by a Telemetry Method |
| title_fullStr | Long-Term Recording of Reticulo-Rumen Myoelectrical Activity in Sheep by a Telemetry Method |
| title_full_unstemmed | Long-Term Recording of Reticulo-Rumen Myoelectrical Activity in Sheep by a Telemetry Method |
| title_short | Long-Term Recording of Reticulo-Rumen Myoelectrical Activity in Sheep by a Telemetry Method |
| title_sort | long term recording of reticulo rumen myoelectrical activity in sheep by a telemetry method |
| topic | electromyography rumen reticulum rumination cycle ewes |
| url | https://www.mdpi.com/2076-2615/11/4/1052 |
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