TABLE 1.

Basic conditions of pigs that were sampled

Sample analyzedh
PigaDietIleumCecumColon
SPF-AbStandardf
SPF-BbStandard
SPF-CbStandard
OrganiccStandard
s-962dStandard, no Tylosin
s-959dStandard, 60 ppm Tylosin
A-65Standard
A-42Standard
G-55Standard, 2% lactic acid
G-23Standard, 2% lactic acid
SwAStandard
F-9Fermented standard feed
B-18CPg
E-24CP, 12% sugar beet pulp
6CCP, 10% potato starch
2W-a,beSow's milk
4W-a,beSow's milk and dry feedi
6W-a,beStandard
28-FaStandard, 1.8% formic acid
29-stfStandard, fine
30-stcStandard, coarse
  • a Unless otherwise stated, the pigs originated from experimental studies at the Danish Veterinary Laboratory and were 12 to 16 weeks of age.

  • b SPF-A, SPF-B, and SPF-C were bought from a specific pathogen-free high-health, commercial herd.

  • c Organically reared pig.

  • d Experimentally challenged with Salmonella enterica serovar Typhimurium, with or without Tylosin as a growth promoter.

  • e 2W-a,b, 4W-a,b, and 6W-a,b were six animals bought from a commercial herd and were 2, 4, and 6 weeks old, respectively.

  • f Standard feed based on wheat, barley, soybeans, and fish meal, without antibiotic growth promoters.

  • g CP, cooked rice and animal protein.

  • h Marked samples were analyzed.

  • i The ileal sample from pig 4-Wb was not analyzed.