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At least 1,531 records · Page 85Linked to original sources
PubMed1975

Hematologic observations on the yak.

The uak has two hemoglobins sharing a common globin chain. Hb slow appears unique to the yak among the ruminants studied. It is not known if Hb slow is important in high altitude adaptation, but physilogic rather than hematolgoic adjustments may be more important agter acute blood loss, as 2,3-DPG remains nit and no disproportionate hemolgoin production occurs.

Adenosine Triphosphate↗
PubMed2002

Artiodactyl IgD: the missing link.

IgD has been suggested to be a recently developed Ig class, only present in rodents and primates. However, in this paper the cow, sheep, and pig Ig delta genes have been identified and shown to be transcriptionally active. The deduced amino acid sequences from their cDNAs show that artiodactyl IgD H chains are structurally similar to human IgD, where the cow, sheep, and pig IgD H chain constant regions all contain three domains and a hinge region, sharing homologies of 43.6, 44, and 46.8% with their human counterpart, respectively. According to a phylogenetic analysis, the Cdelta gene appears to have been duplicated from the Cmu gene >300 million yr ago. The ruminant mu CH1 exon and its upstream region was again duplicated before the speciation of the cow and sheep, approximately 20 million yr ago, inserted upstream of the delta gene hinge regions, and later modified by gene conversion. A short Sdelta (switch delta) sequence resulting from the second duplication, is located immediately upstream of the bovine Cdelta gene and directs regular mu-delta class switch recombination in the cow. The presence of Cdelta genes in artiodactyls, possibly in most mammals, suggests that IgD may have some as yet unknown biological properties, distinct from those of IgM, conferring a survival advantage.

Amino Acid Sequence↗
PubMed2005

Pesticide residues in adipose tissue from hippopotami (Hippopotamus amphibius L) living in and adjacent to the Luangwa River in Zambia.

The concentration of organochlorines (OCs) such as organochlorine pesticides and polychlorinated biphenyls were measured in adipose tissue collected from 14 male hippopotami at Mfuwe in the southern part of the Luangwa National Park, Zambia. The samples contained low levels of OCs, and the concentrations of OCs were comparable to or lower than reported for wild herbivores studied in other parts of the world.

Adipose Tissue↗
PubMed1975

Arthropathy in white-tailed deer and a moose.

Degenerative lesions were found in the skeletal system of 20 to 128 white-tailed deer (Odocoileus virginianus) examined. Similar changes were found in an aged male moose (Alces alces). Arthropathy involving the stifle joint was present in 60% (15/25) of male deer 4 years of age or older, and in 16.7% (4/25) of females in the same age range. Vertebral osteophytes were not found in any of 62 female deer, nor in male deer less than 6 years of age, but were present in 50% (7/14) of males 6 year of age or older. The possible etiology and significance of the conditions are discussed.

Animals↗
PubMed1975

Investigations on a Theileria species from an impala.

An immature impala (Aepyceros melampus), captured in the Machakos district of Kenya, had Theileria-like parasites in its erythrocytes. Blood from this animal was inoculated into a Theileria-free impala born in captivity and a Theileria-free, splenectomized steer. Theilerial piroplasms were detected in the erythrocytes of the recipient impala 10 days after inoculation, and a peak parasitaemia of 2% was reached after 48 days, but no infection was detected in the steer. Anaemia developed in the recipient impala in association with the theilerial infection. The morphology of the theilerial piroplasm is described. Possibly dividing parasites were identified. Attempted tick transmission of the impala Theileria to a steer using the ixodid tick, Rhipicephalus appendiculatus, was unsuccessful. With an antigen prepared from the impala blood and the indirect fluorescent antibody test, this parasite was serologically distinct from other theilerial parasites isolated from Bovidae in East Africa.

Animals↗