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The effect of change of the diet and feeding regimen at weaning on duodenal myoelectrical activity in piglets

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Naughton (nee Lesniewska), V, Laerke, HN, Hedemann, MS, Hojsgaard, S, Pierzynowski, SG and Jensen, BB (2000) The effect of change of the diet and feeding regimen at weaning on duodenal myoelectrical activity in piglets. ANIMAL SCIENCE, 71 (Part 3). pp. 443-451. [Journal article]

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This study investigated the effect of the change of diet and feeding regimen at weaning on myoelectrical activity of the intestine of piglets. For this purpose the electromyographic recordings of duodenal myoelectrical activity were carried out in relation to the different weaning status of piglets. Six piglets, in two experimental trials were surgically modified with two serosal, bipolar electrodes on the duodenum. The myoelectrical activity was recorded in the same piglets before weaning when they were sucking their sow and after weaning when the diet was changed to solid dry food (standard commercial concentrate for weaned rigs). In sucking piglets the intestinal myoelectrical activity pattern exhibited triple-phased migrating myoelectric complex (MMC), undisturbed by sow nursing. After weaning, feeding with solid food induced a long-term post-prandial pattern with higher frequency of electrical response activity (ERA) when compared with phase II of the MMC. The duration of the MMC cycles increased with time over the experiment by proportionately 0.11, and 0.14 in the periods before and after weaning. However, weaning significantly shortened MMC cycle duration by proportionately 0.21. The duration of phase II was significantly prolonged with time over the experiment by 0.07 to 0.10 and it was not affected by weaning. Phase III of MMC were of constant duration over the whole experimental period. In summary, changes in the diet and feeding regimen have an influence on the characteristics of intestinal myoelectrical activity in piglets around weaning.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Northern Ireland Centre for Food and Health (NICHE)
ID Code:4160
Deposited By:Dr Violetta Naughton
Deposited On:13 Jan 2010 11:46
Last Modified:01 Nov 2011 10:15

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