Results 171 to 180 of about 2,273 (203)
Some of the next articles are maybe not open access.
Sexual segregation in desert bighorn sheep (Ovis canadensis mexicana)
Behaviour, 2003One or several factors could explain sexual segregation, in which males and females of polygynous, sexually dimorphic species form separate herds during most of the year. Bighorn sheep (Ovis canadensis) are polygynous ungulates that exhibit extreme sexual dimorphism and segregate into ram and ewe herds outside of the rutting season.
Ian Fraser +6 more
openaire +1 more source
Reproduction, Fertility and Development, 2013
The present objective was to determine if interspecies somatic cell nuclear transfer (SCNT) could be a viable option for producing cloned Rocky Mountain bighorn sheep (RMBS) embryos, a model for other endangered ovine species or sheep of high genetic value.
T. Stroud +3 more
openaire +1 more source
The present objective was to determine if interspecies somatic cell nuclear transfer (SCNT) could be a viable option for producing cloned Rocky Mountain bighorn sheep (RMBS) embryos, a model for other endangered ovine species or sheep of high genetic value.
T. Stroud +3 more
openaire +1 more source
TRANSFERRIN POLYMORPHISM IN BIGHORN SHEEP, OVIS CANADENSIS, IN COLORADO
1980(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Roberts, Patrick W +2 more
openaire +1 more source
Biomechanical Analysis of Ramming Behavior in Ovis Canadensis
Horns have been hypothesized to help in absorbing shock and protecting the brain during ramming events. I general, horn is made of a a-keratin sheath covering a porous bone. The objective of the present study is to investigate the shock-absorptive role of the keratinous sheath and bony core of horns; particularly in Bighorn Sheep (Ovis Canadensis).Parimal Maity, Srinivasan Arjun Tekalur
openaire +1 more source
Occurence of Upper Canines in Mountain Sheep, Ovis canadensis
American Midland Naturalist, 1943Discovery of upper canines or their alveoli in three specimens of mountain sheep led me to search for records of these teeth in sheep and their relatives. Most references concerning the teeth of the Bovidae (antelope, sheep, and cattle) state that upper canines are absent. Actually, exceptions to this rule have been recorded, but they are few.
openaire +1 more source
On lactation and rumination in bighorn ewes ( Ovis canadensis )
Journal of Zoology, 2005Because lactation has high energetic costs, females should vary their foraging behaviour according to reproductive status. In ungulates, however, some studies found no differences in feeding behaviour between non-reproductive (yeld) and lactating females.
openaire +2 more sources
Gestation Period in Ovis canadensis
Journal of Mammalogy, 1984D. M. Shackleton +3 more
openaire +1 more source
Electrocardiogram of a big-horn sheep (Ovis canadensis)
Veterinary Record, 1975A, Rezakhani, M, Edjtehadi
openaire +2 more sources