| epizootiology of bluetongue: the situation in the united states of america. | bluetongue was first reported in the united states in 1948 in sheep in texas. the virus has now been isolated from sheep in 19 states. when the disease first occurs in a flock, the morbidity may reach 50 to 75% and mortality 20 to 50%. in subsequent years, the morbidity may be only 1 to 2% with very few deaths. difference in breed susceptibility has not been observed. natural bluetongue infection has not been observed in angora or dairy goats. bluetongue virus was first isolated from cattle, in ... | 1975 | 169793 |
| serological studies on sympatric barbary sheep and mule deer from palo duro canyon, texas. | sera were collected from 12 barbary sheet (ammotragus lervia) and 11 mule deer (odocoileus hemionus) occupying sympatric ranges in palo duro canyon, texas. these were tested for leptospirosis, brucellosis, bovine virus diarrhea, anaplasmosis, vesicular stomatitis, bluetongue (bt), epizootic hemorrhagic disease (ehd), infectious bovine rhinotracheitis (ibr), and coccidioidomycosis. serologic reactors were found to ibr in 3 barbery sheep, bt in 6 barbary sheep and 6 mule deer and ehd in 3 barbary ... | 1979 | 228088 |
| ectoparasites of sympatric barbary sheep and mule deer in the texas panhandle, usa. | | 1979 | 541816 |
| elaeophorosis in barbary sheep and mule deer from the texas panhandle. | adult elaeophora schneideri were recovered from the common carotid artery and its branches in 14 of 14 mule deer, odocoileus hemionus, and 3 of 9 barbary sheep or aoudads, ammotragus lervia, from palo duro canyon in the texas panhandle. gross cutaneous lesions attributable to elaeophorosis in the barbary sheep varied from small circumscribed scars up to 10 cm in diameter usually on the poll or orbital region to extensive proliferative irregular encrustations on the frontal, temporal and orbital ... | 1981 | 6454793 |
| bovicola tibialis (phthiraptera:trichodectidae): occurrence of an exotic chewing louse on cervids in north america. | through a recent (2003-2007) survey of ectoparasites on hoofed mammals in western north america, a literature review, and examination of archived museum specimens, we found that the exotic deer-chewing louse, bovicola tibialis (piaget), is a long-term, widespread resident in the region. the earliest known collection was from salt spring island, canada, in 1941. we found these lice on the typical host, that is, introduced european fallow deer (dama dama l.), and on asian chital (axis axis [erxleb ... | 2011 | 21337942 |
| molecular characterization of trypanosoma (megatrypanum) spp. infecting cattle (bos taurus), white-tailed deer (odocoileus virginianus), and elk (cervus elaphus canadensis) in the united states. | in the united states, the generally non-pathogenic trypanosome of cattle is designated trypanosoma (megatrypanum) theileri and is distinguished morphologically from trypanosoma (m.) cervi, a trypanosome originally described in mule deer and elk. phylogenetic studies of the megatrypanum trypanosomes using various molecular markers reveal two lineages, designated tthi and tthii, with several genotypes within each. however, to date there is very limited genetic data for t. theileri, and none for th ... | 2013 | 23683651 |
| allozyme and mitochondrial dna analysis of a hybrid zone between white-tailed deer and mule deer (odocoileus) in west texas. | thirty allozyme loci and 35 mitochondrial dna (mtdna) restriction sites were examined in 24 white-tailed deer and 46 mule deer from a hybrid zone in west texas. a common mtdna genotype is shared by all of the mule deer with 67% of the white-tailed deer. at the albumin locus, 13% of the white-tailed deer and 24% of the mule deer are heterozygous, sharing alleles that are otherwise species-specific in allopatric populations; 7% of the mule deer are homozygous for the allele that is characteristic ... | 1992 | 1325774 |
| visceral helminth communities of sympatric mule and white-tailed deer from the davis mountains of texas. | hybridizing populations of mule (odocoileus hemionus) and white-tailed deer (o. virginianus) from the davis mountains of texas were examined to determine similarities in species composition of their helminth communities and if abundances of helminth species in those communities varied across host species and seasonal factors. only three cestode and three nematode species were recovered. there were very low abundances of species and little diversity in the helminth communities of both hosts. comm ... | 1987 | 3820412 |
| mitochondrial dna analysis of hybridization between sympatric white-tailed deer and mule deer in west texas. | sympatric populations of white-tailed deer and mule deer (odocoileus virginianus and odocoileus hemionus, respectively) on a west texas ranch share a common mitochondrial dna restriction map genotype. phylogenetic analysis indicates that this genotype is more characteristic of o. virginianus than of o. hemionus. the genotype of west texas deer differs from that of o. virginianus from south carolina by five mutational events (1.3% sequence divergence), whereas it differs from that of o. hemionus ... | 1986 | 3467326 |