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Author |
Klingel H, |
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Title  |
Eine feine Gesellschaft. |
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Journal Article |
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Year |
1977 |
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GEo |
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GEo |
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10 |
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106-120 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1310 |
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Author |
Alexander, R, MCN et al |
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Title |
Fast locomotion of some african ungulates |
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Journal Article |
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Year |
1977 |
Publication |
Journal of Zoology |
Abbreviated Journal |
J Zool |
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Volume |
183 |
Issue |
3 |
Pages |
291-300 |
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ABSTRACT
Ten species of ungulate were filmed, galloping in their natural habitat. They ranged in size from Thomson's gazelle (about 20 kg) to giraffe (about 1000 kg). They were pursued to make them run as fast as possible. The films have been analysed to determine speed, stride frequency, stride and step lengths, and duty factors. The dependence of these quantities on body size is discussed.
Summary:
Fast locomotion of zebra, giraffe, warthog and seven species of Bovidae has been studied. The animals were filmed from a pursuing vehicle while galloping in their natural habitat.
Stride frequency was more closely correlated with limb length (represented by hip height) than with body mass. Mean stride frequency was proportional to (hip height)-0·51 and maximum stride frequency to (hip height) -0·63.
Maximum speed was between 10 and 14 m s -1 for all species except buffalo (7 m s -1). It was not significantly correlated with body mass.
Since the small species ran at least as fast as the large ones they attained higher Froude numbers. Relative stride length was approximately 1·8 (Froude number)0·39 for all species, irrespective of size. Relative step length was approximately 0·65 (Froude number)0·2, both for the fore feet and for the hind ones. The vertical forces exerted by the feet are proportional to (body weight)×(Froude number)0·2 so the forces at maximum speed are larger multiples of body weight for small species than for large ones. |
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Notes |
from Prof. Hans Klingels Equine Reference List |
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Call Number |
refbase @ user @ |
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130 |
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Author |
Olsen Fw, H.R. |
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Title |
Food relations of wild free – roaming horses to livestock and big game, Red Desert, Wyoming |
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Journal Article |
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Year |
1977 |
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Abbreviated Journal |
J Range Mgmt |
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30 |
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17-20 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1436 |
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Author |
HANSEN et al, |
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Title |
Foods of wild horses, deer and cattle in the Douglas Mountain Area, Colorado |
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Journal Article |
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Year |
1977 |
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Abbreviated Journal |
J Range Mgmt |
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30 |
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116-118 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1158 |
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PICKETT BW et al, |
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Title |
Impotence and abnormal sexual behavior in the stallion |
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Journal Article |
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Year |
1977 |
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Theriogenology |
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8 |
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329-347 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Call Number |
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1469 |
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Author |
Kihara, H.; Nakatani, H.; Hiromi, K.; Hon-Nami, K. |
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Title |
Kinetic studies on redox reactions of hemoproteins. I. Reduction of thermoresistant cytochrome c-552 and horse heart cytochrome c by ferrocyanide |
Type |
Journal Article |
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Year |
1977 |
Publication |
Biochimica et Biophysica Acta |
Abbreviated Journal |
Biochim Biophys Acta |
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Volume |
460 |
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3 |
Pages |
480-489 |
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Keywords |
Animals; Bacteria; *Cytochrome c Group; *Ferrocyanides; Horses; Kinetics; Mathematics; Oxidation-Reduction; Spectrophotometry; Spectrophotometry, Ultraviolet; Temperature; Thermodynamics |
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Abstract |
The oxidation-reduction reaction of horse heart cytochrome c and cytochrome c (552, Thermus thermophilus), which is highly thermoresistant, was studied by temperature-jump method. Ferrohexacyanide was used as reductant. (Formula: see text.) Thermodynamic and activation parameters of the reaction obtained for both cytochromes were compared with each other. The results of this showed that (1) the redox potential of cytochrome c-552, + 0.19 V, is markedly less than that of horse heart cytochrome c. (2) deltaHox of cytochrome c-552 is considerably lower than that of horse heart cytochrome c. (3) deltaSox and deltaSred of cytochrome c-552 are more negative than those of horse heart cytochrome c. (4) kred of cytochrome c-552 is much lower than that of horse heart cytochrome c at room temperature. |
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0006-3002 |
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Notes |
PMID:195599 |
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Call Number |
Equine Behaviour @ team @ |
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3815 |
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Author |
Kihara, H.; Nakatani, H.; Hiromi, K.; Hon-Nami, K.; Oshima, T. |
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Title |
Kinetic studies on redox reactions of hemoproteins. I. Reduction of thermoresistant cytochrome c-552 and horse heart cytochrome c by ferrocyanide |
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Journal Article |
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Year |
1977 |
Publication |
Biochimica et Biophysica Acta (BBA) – Bioenergetics |
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Volume |
460 |
Issue |
3 |
Pages |
480-489 |
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Abstract |
The oxidation-reduction reaction of horse heart cytochrome c and cytochrome c (552, Thermus thermophilus), which is highly thermoresistant, was studied by temperature-jump method. Ferrohexacyanide was used as reductant. Thermodynamic and activation parameters of the reaction obtained for both cytochromes were compared with each other. The results of this showed that (1) the redox potential of cytochrome c-552,+0.19 V, is markedly less than that of horse heart cytochrome c. (2) [up triangle, open]Hox++ of cytochrome c-552 is considerably lower than that of horse heart cytochrome c. (3) [up triangle, open]Hox++ and [up triangle, open]Sred++ of cytoochrome c-552 are more negative than those of horse heart cytochrome c. (4) kred of cytochrome c-552 is much lower than that of horse heart cytochrome c at room temperature. |
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refbase @ user @ |
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3986 |
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Author |
Kratzer, D.D.; Netherland, W.M.; Pulse, R.E.; Baker, J.P. |
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Title |
Maze Learning in Quarter Horses |
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Journal Article |
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Year |
1977 |
Publication |
Journal of Animal Science |
Abbreviated Journal |
J. Anim Sci. |
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45 |
Issue |
4 |
Pages |
896-902 |
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A two-compartment maze providing a single left- or right-side choice was used to test maze-learning ability in 37 quarter horses. Preference for left- or right-side choices varied among the horses. The taller and thinner horses tended to go left. The horses showed learning ability based on decreases in latency and decreases in errors as trials progressed in a right-side escape pattern. The rate of learning an opposite escape pattern, left-side escape, was faster but owing to the large number of errors occurring when the pattern was reversed, the level of errors did not reduce to a level comparable to that achieved in the right-side escape pattern until adverse stimuli were presented in the blind compartment. Heavier horses took longer to escape from the maze when adverse stimuli were presented. Differences in learning ability for horses fed various levels of dietary protein were not consistent. N1 - |
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Equine Behaviour @ team @ |
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3574 |
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Author |
Schulman AH; Kaplowitz C |
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Title |
Mirror image response during the first two years of life |
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1977 |
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Dev. Psychobiol. |
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10 |
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133 |
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Equine Behaviour @ team @ |
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3039 |
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Author |
Monfort, A.; Monfort, N |
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Title |
Observation of a melanistic zebra (Equus burchelli) in the Akagera |
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Journal Article |
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1977 |
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E. Afr. Wildl |
Abbreviated Journal |
E. Afr. Wildl |
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15 |
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173 |
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Equine Behaviour @ team @ |
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2389 |
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