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Ascaris suum:Nutrient absorption, growth, and intestinal pathology in young pigs experimentally infected with 15-day-old larvae

Authors
Journal
Experimental Parasitology
0014-4894
Publisher
Elsevier
Publication Date
Volume
49
Issue
1
Identifiers
DOI: 10.1016/0014-4894(80)90051-x
Keywords
  • Ascaris Suum
  • Nematode
  • Parasitic
  • Swine
  • Feed Efficiency
  • Nitrogen Balance
  • Fat Absorption
  • Intestinal Pathology
Disciplines
  • Biology

Abstract

Abstract Three-week-old pigs on high (HP) or low (LP) protein diets were infected with 15-day-old Ascaris suum larvae (W). Including noninfected pigs (C), the experimental groups were HPW, LPW, HPC, and LPC. After 8 weeks, worm burden in the intestine averaged 42 in LPW and 31 in HPW. Nitrogen balance during Week 4 showed nonsignificantly less nitrogen absorption and retention in LPW compared to LPC. A similar, nonsignificant decrease in fat absorption was recorded in LPW vs LPC and in HPW vs HPC. The weight of the small intestine was significantly greater in W than C pigs but did not differ because of protein level. The weight correlated positively to worm burden and the increase was due mainly to hypertrophy of the tunica muscularis (muscle layers).

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