Effect of intraluminal nutrition of postnatal development of the small intestine in piglets during the first 24 hours after birth
1996
Prapaporn Tungthanathanich | Reynolds, Gordon W. | Simpson, Heather V. | Mellor, David J. (Khon Kaen Univ., Khon Kaen (Thailand). Faculty of Veterinary Medicine. Dept. of Physiology)
To investigate the effect of intraluminal nutrition on postnatal development of the small intestine, 10 unsuckled newborn piglets (1.2-1.6 kg bw) were devided into 2 groups; one fed by total parenteral nutrition (TPN) (CHO=10, Protein = 5, Fat=6; g/kg bw) and the other by orogastric feeding (OGF), with the same TPN solution with equal caloric value. After 24 hours, the piglets were weighed, euthanased and the small intestine (SI) removed. The SI was weighed, its length measured while suspending vertically, then divided into 5 parts; duodenum, upper jejunum, lower jejunum, upper ileum and lower ileum, and the mucosa scraped off and weighed. The mucosal RNA, DNA, protein and lactase concentrations in each segment were determined. All data were analyzed by analysis of covariance. The length of total Sl, jejunum and ileum of the OGF group were longer than those of the TPN group (p0.001), but the circumference, wall thickness, the total, mucosal and muscular weights and the biochemical parameters of any part of the small intestine were not different. It is concluded that during the first 24 hours after birth, luminal nutrition had no effects on other growth parameters of the small intestine in the piglets, except the length, when compared to total parenteral nutrition. This is likely to be due to physiological elongation rather than growth.
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Эту запись предоставил Kasetsart University