Intraperitoneal Temperature of Piglets in the First Three Postnatal Weeks as Measured by Radiotelemetry
| Autor: | R. L. Hullinger, Eva Baranyiová, A. Holub |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1997 |
| Předmět: | |
| Zdroj: | Acta Veterinaria Brno, Vol 66, Iss 1, Pp 3-8 (1997) |
| ISSN: | 1801-7576 0001-7213 |
| Popis: | Baranyiova E .. A. Holub, R. L. Hullinger: Intraperitoneal TemperatureoJPiglets in the First Three Postnatal Weeks as Measured by Radiotelemetry. Acta vet. Bmo, 1997,66:3-8. Intraperitoneal temperature (IT) was detennined in early-weaned piglets of both sexes to day 21, using radiotelemetry. Ten piglets (five weaned on the second, five on the third day after birth), were used in the study. They were reared individually in cages, offered a liquid diet for suckling at 2-h intervals 9 times a day. They were placed in a temperature-controlled room with L:D regime of 12:12 h. Audio signals from intraperitoneally implanted transmitters (Minimitter Co., Sunriver, OR, USA) were converted to body temperature using calibration data. A total of 1,963 daily measurements taken between 06.00 and 22.00 h show that in the first two postnatal weeks the mean daily IT rose significantly (P < 0.05) with advancing age from 39.8 ± 0.1 °C to 40.5 °C. At the beginning of the second week, there was a transient IT decrease, followed by another increase; IT did not change thereafter. There were also diurnal changes in IT observed in the light phase, especially during the morning hours. IT was also affected by gender. In males the mean daily IT was higher, though not significantly. during the entire experimental period. During dietary intake there was a small temporary increase in IT. An IT elevation occurred in several piglets suffering from transient diarrhoea. Radiotelemetric procedures with unrestrained animals exclude measurement errors resulting from direct contact with the measuring techniques/devices and the excitement due to contact with experimenters. Radiotelemetry opens new technical possibilities of a reliable, undisturbed recording of body temperature in piglets. Early weaning, core body temperature. individual rearing. temperature regulation. radiotelemetry |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|