| Records |
| Author |
Ruckebusch Y, |
| Title |
The hypnogram as an index of adaptation of farm animals to changes in their environment |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
App Anim Ethol |
| Volume |
2 |
Issue |
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Pages |
3-18 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1531 |
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| Author |
Short Rv, |
| Title |
The evolution of the horse |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
J Reprod Fert Suppl |
| Volume |
23 |
Issue |
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Pages |
1-6 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1589 |
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| Author |
Smuts Gl, |
| Title |
Home range sizes for Burchell's Zebra, Equus burchelli antiquorum from the Krüger National Park |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
Koedoe |
| Volume |
18 |
Issue |
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Pages |
139-146 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1612 |
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| Author |
Smuts Gl, |
| Title |
Pre – and postnatal growth phenomena of Burchell's Zebra, Equus Burchelli Antiquorum |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
Koedoe |
| Volume |
18 |
Issue |
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Pages |
69-102 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
1613 |
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| Author |
Western D, |
| Title |
Water availability and its influence on the structure and dynamics of a savannah large mammal community |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
E Afr Wildl J 1 |
| Volume |
3 |
Issue |
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Pages |
265-288 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
1704 |
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| Author |
Wood, F.E.; Cusanovich, M.A. |
| Title |
The reaction of Euglena gracilis cytochrome c-552 with nonphysiological oxidants and reductants |
Type |
Journal Article |
| Year |
1975 |
Publication |
Archives of Biochemistry and Biophysics |
Abbreviated Journal |
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| Volume |
168 |
Issue |
2 |
Pages |
333-342 |
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| Abstract |
The reaction of Euglena gracilis cytochrome c-552 (cytochrome f) with the nonphysiological reactants potassium ferrocyanide, potassium ferricyanide, sodium ascorbate, sodium dithionite, and Chromatium vinosum high potential nonheme iron protein was studied by stopped-flow and temperature-jump kinetic methods. The reaction of the purified, water-soluble protein with the reactants was investigated as a function of ionic strength, pH, and temperature. The results demonstrated that reduction and oxidation takes place at a negatively charged site on the cytochrome c-552 surface. Participation of specific amino acid residues in electron transfer is implicated from the pH results. The results obtained for the nonphysiological reactions of cytochrome c-552 are compared with available data for horse heart cytochrome c and Rhodospirillum rubrum cytochrome c2. The results strongly suggest that Euglena gracilis cytochrome c-552 undergoes nonphysiological oxidation and reduction by a mechanism different from that found for cytochrome c or cytochrome c2. |
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no |
| Call Number |
refbase @ user @ |
Serial |
3987 |
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| Author |
Zentall, T.R; Hogan, D.E. |
| Title |
Key pecking in pigeons produced by pairing keylight with inaccessible grain |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
J Exp Anal Behav |
| Volume |
23 |
Issue |
2 |
Pages |
199-206 |
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| Abstract |
In Experiment I, keylight was paired with inaccessible grain delivery (under two conditions of keylight intensity) to determine if autoshaping would occur in the absence of primary reinforcement. In Experiment II, the procedure was repeated with accessible grain, for comparison. In Experiment III, the procedures were repeated with explicitly unpaired presentations of keylight and either inaccessible or accessible grain. The results indicated that key pecking occurred as quickly in the presence of keylight pairings with inaccessible grain as with accessible grain, though (except for one bird) key pecking was not maintained with inaccessible grain. Furthermore, compared to the dim keylight, the bright keylight greatly suppressed key pecking when paired with inaccessible grain, and reduced the rate of key pecking when paired with accessible grain. Little key pecking occurred in groups exposed to explicitly unpaired presentations of keylight (whether bright or dim) and grain (whether accessible or inaccessible). When the birds in Experiment III were retested with explicitly paired presentations of keylight and grain, little key pecking was observed, suggesting suppressive effects of prior explicitly unpaired presentations. It is suggested that the effects of key-brightness manipulation were produced by the association of grain with cues other than the response key, or by distraction produced by partial illumination of the grain hopper. |
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| Language |
English |
Summary Language |
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| ISSN |
0022-5002 |
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| Notes |
PMID:16811840 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
273 |
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| Author |
Ayeni, J.S.O. |
| Title |
Utilization of waterholes in Tsavo National Park (East) |
Type |
Journal Article |
| Year |
1975 |
Publication |
African Journal of Ecology |
Abbreviated Journal |
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| Volume |
13 |
Issue |
3-4 |
Pages |
305-323 |
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| Abstract |
Summary Utilization of waterholes by wildlife was studied between April, 1973 and July, 1974 in Tsavo National Park (East), south of the Voi river. Seasonality was an important factor which influenced the various aspects of waterhole utilization. The numbers of the herbivores utilizing the waterholes increased during the dry season but fell during the rains. Some ungulates also moved near to the artificial waterholes in the dry season but moved away from them during the rains when they drank from natural water-holes formed in clay pans filled with rain water. A basic pattern of waterhole utilization dominated by small (adult-size) species during day-time 06.00–18.00 hours and larger species at night 18.00–06.00 hours is described. The separation in times of arrival and deparature peaks of waterhole utilization, and average coincidence of percentages of paired species populations are used to show that big-game attained a measure of time-spaced ecological separation at the waterholes. The water relations of some day-time and night-time drinkers are discussed. From the baseline study the management implications of the development of additional waterholes in the park are discussed. |
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| Publisher |
Blackwell Publishing Ltd |
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Edition |
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| ISSN |
1365-2028 |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5364 |
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| Author |
Douglas Rh, G.O. |
| Title |
Development of the equine fetus and placenta |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
J Reprod Fert (Suppl) |
| Volume |
23 |
Issue |
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Pages |
495-498 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1023 |
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| Author |
Imesh Gd, S.G. |
| Title |
Gross and microscopic observations of ovarian abnormalities from five Burchell's zebra |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
Onderstepoort J vet Res |
| Volume |
42 |
Issue |
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Pages |
109-116 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1213 |
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