Publications

prevalence of large endoparasites at necropsy in horses infected with population b small strongyles in a herd established in kentucky in 1966.	two closed horse herds (old lot 4 and field 24), infected since 1966 with population b small strongyles resistant to thiabendazole (tbz) and phenothiazine (ptz), were terminated in february, march, and may, 2005. at necropsy, only the large endoparasites were identified and counted. the number of horses on pasture was 14 (239 days of age to 23 years old) for old lot 4 and two (3 to 20 years old) for field 24. the time of the last antiparasitic treatment, relative to the year (2005) of necropsy, ...	2006	16508764
transmission of endoparasites in horse foals born on the same pasture on a farm in central kentucky (1996-1999).	research carried out during the last 4 years (1996-1999) of an 11-year study of the prevalence of internal parasites naturally transmitted to horse foals born on the same pasture on a farm in central kentucky is presented here. horses in this herd were not treated with any antiparasitic compound for over 20 years except for a replacement stallion in 1994. a total of 22 species, including 12 species of small strongyles, were recovered in the 4-year period. transmission patterns of all species (n= ...	2001	11358626
prevalence of selected species of internal parasites in equids at necropsy in central kentucky (1995-1999).	a survey to determine current prevalence of several species of endoparasites in equids (n=350) at necropsy was conducted at the livestock disease diagnostic center in central kentucky (1995-1999). thelazia lacrymalis were found in 42% of the 1- to 4-year olds (n=132), which was the only age group examined for these parasites. five- to 30-year olds (n=157), examined for onchocerca spp. worms/lesions, had a prevalence of 24%. in > or =1-year olds (n=324), the infection rate for gasterophilus intes ...	2000	10936545
transmission of some species of internal parasites in horses born in 1990, 1991, and 1992 in the same pasture on a farm in central kentucky.	studies were conducted on transmission of natural infections of several species of internal parasites in horses born and kept on the same pasture on a farm in central kentucky. data for the first year (1989) of a 4 year study on this farm have been published recently. the present research represents the second (1990), third (1991), and fourth (1992) years of the investigation. the number of animals (n = 28) examined varied from eight born in 1990 to ten each born in 1991 and 1992. for each year, ...	1994	8073609
common internal parasites found in the stomach, large intestine, and cranial mesenteric artery of thoroughbreds in kentucky at necropsy (1985 to 1986).	a total of 278 thoroughbreds (less than 1 to 31 years old) were examined at necropsy (july 9, 1985, to feb 2, 1986) in kentucky for various internal parasites. examination was not made of all the horses for each of the parasites. specific parasites recovered from the stomach of foals (n = 30) and yearlings and older horses (n = 96) and percentage (in parentheses) of each age category infected, respectively, were as follows: gasterophilus intestinalis 2nd instar (53% and 32%) and 3rd instar (37% ...	1987	2950814
prevalence of internal parasites in horses in critical tests of activity of parasiticides over a 28-year period (1956-1983) in kentucky.	the prevalence and number of naturally acquired gastrointestinal parasites were compiled for horses used in critical tests of activity of parasiticides over a 28-year period (1956-1983). data are presented as follows: n = number of horses examined; % = mean prevalence; number in parentheses after % = aggregate mean number of parasites in infected horses. parasites found were: bots (n = 513) - gasterophilus intestinalis, 2nd instar, 61%(58); 3rd instar, 94%(168); g. nasalis, 2nd instar, 36%(28); ...	1987	3564356
prevalence of some internal parasites recovered at necropsy of thoroughbreds born in 1982 in kentucky.	a total of 89 thoroughbreds, 14 to 333 days old (born in 1982), were examined at necropsy for certain internal parasites during a 1-year-period, mar 1, 1982, to feb 28, 1983. the eyes of 73 of the horses and the cranial mesenteric arteries of 71 were examined. specific interest was on prevalence of parasites according to month of the year and age of the horses at necropsy. parasites recovered (first month-last month infected horse found) were as follows: thelazia lacrymalis (eyes) immature and m ...	1985	3994134
occurrence of second and third instars of gasterophilus intestinalis and gasterophilus nasalis in stomachs of horses in kentucky.	the occurrence of 2nd and 3rd instars of gasterophilus intestinalis and gasterophilus nasalis was determined in 476 horses during the 22-year period from 1951 to 1973. overall, g intestinalis infected 98.7% of the horses and averaged 168/horse; whereas g nasalis infected 80.7% of the horses and averaged 52/horse. aggregate average total numbers for g intestinalis ranged from a low of 50 in september to a high of 229 in march, and for g nasalis, from a low of 14 in september to a high of 82 in fe ...	1975	1190600