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Journal of Animal Science, Vol 76, Issue 3 788-795, Copyright © 1998 by American Society of Animal Science

JOURNAL ARTICLE

Changes in pars esophageal tissue appearance of the porcine stomach in response to transportation, feed deprivation, and diet composition

B. V. Lawrence, D. B. Anderson, O. Adeola and T. R. Cline
Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA.

Experiment 1 used 48 pigs to evaluate the effect of diet particle size, fat content, and a 24-h fast (FST) on pars esophageal (PE) tissue damage. Following a FST, a 750-microm, 550-microm, or 550-microm diet with 7.9% added fat was fed for 28 d. Additional pigs were fed the 550-microm fat-added diet with a FST every 7 d. The initial FST induced erosion (EROS) of the PE (P < .05). A 550-microm diet maintained the FST-induced EROS (P < .05). The 750-microm diet allowed the PE to heal. Sixteen pigs were used in Exp. 2 to evaluate transportation and FST-induced changes in PE. A FST following transportation induced keratinization (KERT) and EROS of the PE (P < .05). In Exp. 3, restraint and a FST followed by a 750-microm diet on PE was investigated using 48 pigs. A FST induced PE KERT and EROS, which was reduced to pre-FST levels ( P < .05) within 3 to 14 d by a 750-microm diet. In Exp. 4, 70 pigs were fed 750-microm or 550-microm diets following transportation and subsequent FST. Within 7 d, healing (P < .05) of FST-induced PE damage was observed with a 750-microm diet. A 550-microm diet maintained (P < .05) the transportation/FST-induced PE damage. Thirty pigs were used in Exp. 5 to investigate the effect of restraint for 24 h and FST on PE. A FST and the combination of restraint and FST induced similar levels of PE damage that were greater than pre-restraint/FST levels (P < .05).


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J. T. Cole, R. A. Argenzio, and J. H. Eisemann
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J Anim Sci, September 1, 2004; 82(9): 2757 - 2763.
[Abstract] [Full Text] [PDF]


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Copyright © 1998 by the American Society of Animal Science.