Interpreting comparative experiments on parasite burdens in animals using randomization and canonical variates.
Comparative experiments on parasite burdens present difficulties for modelling and interpretation: data tend to have highly skewed distributions, some standard methods of testing for effects have low power, and there is a need to make allowance for dependencies among the various measurements. Randomization testing and canonical variates analysis are advocated as a means of minimising these problems.
Johnstone
P D
PD
AgResearch Invermay Agricultural Centre, Mosgiel, New Zealand. johnstonep@agresearch.cri.nz
Mackintosh
C G
CG
Manly
B F
BF
D000018:Abomasum / Q000469:parasitology; D015766:Albendazole / Q000494:pharmacology / Q000627:therapeutic use; D000818:Animals; D000969:Antinematodal Agents / Q000494:pharmacology / Q000627:therapeutic use; D003670:Deer / Q000469:parasitology*; D004021:Dictyocaulus / Q000187:drug effects / Q000254:growth & development; D004022:Dictyocaulus Infections / Q000188:drug therapy / Q000276:immunology / Q000469:parasitology*; D016002:Discriminant Analysis; D004198:Disease Susceptibility; D005243:Feces / Q000469:parasitology; D007113:Immunity, Innate; D007420:Intestine, Large / Q000469:parasitology; D007421:Intestine, Small / Q000469:parasitology; D008168:Lung / Q000469:parasitology; D015999:Multivariate Analysis; D010028:Ostertagia / Q000187:drug effects / Q000254:growth & development; D010029:Ostertagiasis / Q000276:immunology / Q000469:parasitology / Q000662:veterinary*; D010270:Parasite Egg Count / Q000662:veterinary; D011897:Random Allocation
D000969:Antinematodal Agents; D015766:Albendazole