Effect of duodenal cannulation in sheep on the pattern of gastroduodenal electrical activity and digestive flow

Poncet, C.; Ivan, Michael E.

doi:10.1051/rnd:19840706

Cited by 13 publications

(10 citation statements)

References 15 publications

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“…It was also found in other own studies on sheep further confirming its frequent appearance (Romański, 2004;Romański, 2007b;Romański, 2009b;Romański, 2010). Furthermore, similar events, not identified explicitely as the MR, were found mostly in sheep (Bueno and Ruckebusch, 1979;Gregory et al, 1985;Grivel and Ruckebusch, 1972;Lester and Bolton, 1994;Poncet and Ivan, 1984;Ruckebusch, 1970;Ruckebusch, 1989), but also in man, dog and cattle (Andrews, 2001;Büh-ner and Ehrlein, 1989;Castedal et al, 1998, Defilippi, 2007Hasselbrack and Thomas, 1961;Ooms and Oyaert, 1978;Summers and Dusdieker, 1981;White et al, 1983). All the events could represent the MR pattern.…”

Section: Discussionsupporting

confidence: 63%

Ovine small bowel “minute rhythm” intensity related to feeding and phase of migrating myoelectric complex

Romanski

2018

J Hellenic Vet Med Soc

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To cite this article: ROMAŃSKI, K. (2018). Ovine small bowel "minute rhythm" intensity related to feeding and phase of migrating myoelectric complex. Journal of the Hellenic Veterinary Medical Society, 68(3), 413-422. doi ABSTRACT. The presented study was performed to characterize further the 'minute rhythm' in the ovine small bowel, notably to assess the role of fasting and feeding as well as of the phase of the MMC upon the number and amplitude of the MR-containing spike bursts. In eight rams the electrodes were attached to the pyloric antrum, duodenal bulb, duodenum and upper jejunum. In the course of chronic experiments, the myoelectrical recordings were conducted in fasted and non-fasted rams, before and after feeding offered during phase 2a or 2b of the MMC. The phases of the MMC and the MR episodes were identified and the MR frequency, the number of the spike bursts in one MR episode and their amplitudes were calculated. 74 per cent of the MR episodes exhibited the propagated character. At the beginning of phase 2a, the MR often arrived exclusively in the duodenal bulb and was disorganized, while at the end of phase 2b of the MMC, the MR-related spike bursts were most prominent and propulsive. In the duodenal bulb, the giant-like spike bursts forming the pattern were observed occasionally. The MR episodes contained usually 1-2 spike bursts. The number of the MR episodes, each containing one spike burst was smaller after feeding mostly in the duodenum and jejunum and it was lower during phase 2b than during phase 2a of the MMC in the duodenal bulb, duodenum and jejunum. The number of the spike bursts in one MR episode increased after feeding and during phase 2b of the migrating myoelectric complex and it was the highest in the jejunum. The spike burst amplitudes of the MR episodes were the highest in the duodenal bulb. Feeding during phase 2b of the MMC decreased the amplitude of the MR-related spike bursts both in the duodenum and the jejunum. It is concluded that the intensity of the MR in the ovine small bowel is related to feeding and to the phase of the MMC and the high variability of the pattern comprises its character and strength that are apparently related to the intraluminal influences affecting the controlling mechanisms.

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Section: Discussionsupporting

confidence: 63%

Ovine small bowel “minute rhythm” intensity related to feeding and phase of migrating myoelectric complex

Romanski

2018

J Hellenic Vet Med Soc

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“…The severity of gastrointestinal hypomotility is related to the extent of surgical manipulation and subsequent inflammatory response in sheep, 35 humans, 36 and laboratory animals. 15,37 It is therefore likely that minimization of mechanical manipulation to the abomasum, small intestine, and omentum during the laparoscopy-guided procedure is the main reason for the difference in abomasal emptying rate detected between surgical groups in the present study.…”

Section: Discussionmentioning

confidence: 99%

Effect of surgical correction of left displaced abomasum by means of omentopexy via right flank laparotomy or two-step laparoscopy-guided abomasopexy on postoperative abomasal emptying rate in lactating dairy cows

Wittek

Locher

Alkaassem

et al. 2009

javma

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“…Such inconveniences are now avoided by flowmetry, which uses ringlike probes inserted into single Tshaped cannulas (177,178). In sheep fed once daily, the mean flow rate of digesta at the postpyloric level increases by 30% when fed the same ration 3 times daily.…”

Section: Motor Function Of Duodenal Bulbmentioning

confidence: 99%

Gastrointestinal motor functions in ruminants

Ruckebusch

1989

Comprehensive Physiology

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Effect of duodenal cannulation in sheep on the pattern of gastroduodenal electrical activity and digestive flow

Abstract: Summary. The Introduction.

Cited by 13 publications

References 15 publications

Ovine small bowel “minute rhythm” intensity related to feeding and phase of migrating myoelectric complex

Ovine small bowel “minute rhythm” intensity related to feeding and phase of migrating myoelectric complex

Effect of surgical correction of left displaced abomasum by means of omentopexy via right flank laparotomy or two-step laparoscopy-guided abomasopexy on postoperative abomasal emptying rate in lactating dairy cows

Gastrointestinal motor functions in ruminants

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