Effects of feed, plots on concentrations of gastrointestinal nematode
eggs (eggs per g; EPG) in feces of white-tailed deer (Odocoileus virgi
nianus) were studied on six properties in East Feliciana Parish, LA, U
SA, from February 1989-January 1990. EPG levels were weakly related to
deer densities (r = 0.11, P < 0.01) and differed among seasons (P = 0
.02), months (P < 0.01), and properties (P < 0.01). EPG levels from sa
mples collected monthly on individual properties averaged 14.8 (SE = 1
.3). EPG levels during winter and summer were similar (P > 0.05) and h
igher than during fall or spring. EPG levels during spring were lower
than during any other season (P < 0.05). The presence of feed plots di
d not affect EPG levels during any season (P greater-than-or-equal-to
0.34) or month (P greater-than-or-equal-to 0.18), or with relative dee
r density serving as a covariable (P = 0.52). The presence of feed plo
ts did not affect gastrointestinal parasite burdens of deer as reflect
ed by fecal egg counts on properties in this study. The establishment
of feed plots will not necessarily lead to increased gastrointestinal
parasite burdens in deer concentrating to forage on those sites.