Article Figures & Data
Figures
- FIG. 1.
DTH responses to Mycoplasma hyopneumoniae in young pigs. M. hyopneumoniae antigen, PHA, or saline was injected intradermally into the left inguinal area of 3- to 5-day-old pigs. Skin fold thickness and lesion size were measured 36 h later with calipers. (A) Mycoplasma-specific DTH responses in offspring of VS and NVS. (B) DTH responses in offspring of VS. (C) DTH responses in offspring of NVS. M. hyopneumoniae-specific DTH responses were evident only for offspring of VS. All animals responded to the nonspecific mitogen PHA and none responded to saline. * indicates significance at a P value of <0.05; ** indicates significance at a P value of <0.001. DxT, measurement value for orthogonal diameter by skin thickness.
- FIG. 2.
Mycoplasma-specific lymphocyte proliferation. Lymphocytes were isolated from sow colostrum and from piglet blood before (PS) and 24 h after (AS) colostrum ingestion and stimulated with M. hyopneumoniae antigen. Average antigen-specific proliferation by lymphocytes isolated from PS and AS piglets and from sow colostrum. Variation is expressed as standard error; * indicates significance at a P value of <0.05.
