Records |
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 |
Keywords |
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Abstract |
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Series Volume |
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ISSN |
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Expedition |
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Conference |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
Call Number |
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Serial |
1613 |
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Author |
Montagu I, |
Title |
The wild ass of Africa |
Type |
Journal Article |
Year |
1975 |
Publication |
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Abbreviated Journal |
Wild Life |
Volume |
17 |
Issue |
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Pages |
400-401 |
Keywords |
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Abstract |
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Edition |
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Conference |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
Call Number |
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Serial |
1409 |
Permanent link to this record |
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Author |
Sivak, J.G.; Allen, D.B. |
Title |
An evaluation of the “ramp” retina of the horse eye |
Type |
Journal Article |
Year |
1975 |
Publication |
Vision Research |
Abbreviated Journal |
Vision Res |
Volume |
15 |
Issue |
12 |
Pages |
1353-1356 |
Keywords |
Accommodation, Ocular; Animals; Aqueous Humor/physiology; Cornea/physiology; Freezing; Horses/*anatomy & histology; Lens, Crystalline/anatomy & histology/physiology; Refraction, Ocular; Retina/*anatomy & histology; Vitreous Body/physiology |
Abstract |
Using a rapid freezing and sectioning technique, the distance between the lens and retina of the horse eye was measured. There is no indication of a ramp retina that could serve accommodation. The pupil axis of the eye coincides with the maximum lens to retina distance. The changes in the lens-retina distance are greater below the axis than above it. Calculations were made of refractive power of the horse eye from measurements of curvature and refractive indices of the ocular tissues. These calculations agree both qualitatively and quantitatively with retinoscopic measurements on live horses. Both show that the refractive state shifts in the direction of hyperopia above and below the axis and that this shift is greater below the axis than above it. Some dynamic accommodative ability in the living eye was observed. |
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Language |
English |
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Original Title |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0042-6989 |
ISBN |
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Conference |
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Notes |
PMID:1210017 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3647 |
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Author |
Dunn, M.F.; Branlant, G. |
Title |
Roles of zinc ion and reduced coenzyme in horse liver alcohol dehydrogenase catalysis. The mechanism of aldehyde activation |
Type |
Journal Article |
Year |
1975 |
Publication |
Biochemistry |
Abbreviated Journal |
Biochemistry |
Volume |
14 |
Issue |
14 |
Pages |
3176-3182 |
Keywords |
*Alcohol Oxidoreductases/metabolism; Aldehydes/*pharmacology; Animals; Binding Sites; Enzyme Activation/drug effects; Horses; Hydrogen-Ion Concentration; Kinetics; Liver/enzymology; *NAD/analogs & derivatives/pharmacology; Oxidation-Reduction; Protein Binding; Spectrophotometry; Spectrophotometry, Ultraviolet; Temperature; *Zinc/pharmacology |
Abstract |
1,4,5,6-Tetrahydronicotinamide adenine dinucleotide (H2NADH) has been investigated as a reduced coenzyme analog in the reaction between trans-4-N,N-dimethylaminocinnamaldehyde (I) (lambdamax 398 nm, epsilonmax 3.15 X 10-4 M-minus 1 cm-minus 1) and the horse liver alcohol dehydrogenase-NADH complex. These equilibrium binding and temperature-jump kinetic studies establish the following. (i) Substitution of H2NADH for NADH limits reaction to the reversible formation of a new chromophoric species, lambdamax 468 nm, epsilonmax 5.8 x 10-4 M-minus 1 cm-minus 1. This chromophore is demonstrated to be structurally analogous to the transient intermediate formed during the reaction of I with the enzyme-NADH complex [Dunn, M. F., and Hutchison, J. S. (1973), Biochemistry 12, 4882]. (ii) The process of intermediate formation with the enzyme-NADH complex is independent of pH over the range 6.13-10.54. Although studies were limited to the pH range 5.98-8.72, a similar pH independence appears to hold for the H2NADH system. (iii) Within the ternary complex, I is bound within van der Waal's contact distance of the coenzyme nicotinamide ring. (iv) Formation of the transient intermediate does not involve covalent modification of coenzyme. Based on these findings, we conclude that zinc ion has a Lewis acid function in facilitating the chemical activation of the aldehyde carbonyl for reduction, and that reduced coenzyme plays a noncovalent effector role in this substrate activating step. |
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English |
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Series Issue |
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Edition |
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ISSN |
0006-2960 |
ISBN |
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Medium |
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Area |
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Conference |
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Notes |
PMID:238585 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3817 |
Permanent link to this record |
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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 |
Keywords |
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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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Editor |
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Original Title |
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Series Editor |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1365-2028 |
ISBN |
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Notes |
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Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
5364 |
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Author |
Leuthold W, L.B. |
Title |
Temporal patterns of reproduction in ungulates of Tsavo East National Park Kenya |
Type |
Journal Article |
Year |
1975 |
Publication |
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Abbreviated Journal |
E Afr Wildl J |
Volume |
13 |
Issue |
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Pages |
159-170 |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
Call Number |
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Serial |
1345 |
Permanent link to this record |
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Author |
Owaga Ml, |
Title |
The feeding ecology of wildbeest and zebra in Athi – Kaputei plains |
Type |
Journal Article |
Year |
1975 |
Publication |
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Abbreviated Journal |
E Afr Wildl J |
Volume |
13 |
Issue |
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Pages |
375-384 |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
Call Number |
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Serial |
1445 |
Permanent link to this record |
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Author |
Nelson, W.A.; Keirans, J.E.; Bell, J.F.; Clifford, C.M. |
Title |
Host-ectoparasite relationships |
Type |
Journal Article |
Year |
1975 |
Publication |
Journal of Medical Entomology |
Abbreviated Journal |
J Med Entomol |
Volume |
12 |
Issue |
2 |
Pages |
143-166 |
Keywords |
Animal Nutrition Physiology; Animals; Anoplura/physiology; *Arthropods; Birds/parasitology; Chickens/parasitology; Dermacentor/parasitology; Diptera; Ecology; Feeding Behavior; Female; Horses/parasitology; Humans; Male; Mallophaga/physiology; Mice/parasitology; Mites/physiology; Reproduction; Sarcoptes scabiei/physiology; Sheep/parasitology; Skin/parasitology; Ticks/physiology; Toxins, Biological/toxicity; Trombiculidae/physiology |
Abstract |
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English |
Summary Language |
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Series Editor |
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Edition |
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ISSN |
0022-2585 |
ISBN |
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Notes |
PMID:808617 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2704 |
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Author |
Eisenmann V, |
Title |
Nouvelles interpretations des restes d`équides de Nihowan Equus teilhardi Nov.Sp |
Type |
Journal Article |
Year |
1975 |
Publication |
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Abbreviated Journal |
Geobios |
Volume |
8 |
Issue |
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Pages |
125-134 |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
Call Number |
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Serial |
1047 |
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Author |
Wang, L.Y. |
Title |
Host preference of mosquito vectors of Japanese encephalitis |
Type |
Journal Article |
Year |
1975 |
Publication |
Zhonghua Minguo wei Sheng wu xue za zhi = Chinese Journal of Microbiology |
Abbreviated Journal |
Zhonghua Min Guo Wei Sheng Wu Xue Za Zhi |
Volume |
8 |
Issue |
4 |
Pages |
274-279 |
Keywords |
Animals; *Behavior, Animal; Birds/blood; *Culex; Ecology; Encephalitis, Japanese/*transmission; *Feeding Behavior; Female; Humans; *Insect Vectors; Mammals/blood; Species Specificity; Taiwan |
Abstract |
The host preference of 4 Culex mosquito species collected in Miaoli and Pingtung counties, Taiwan was studied by capillary precipitin method. Antisera to alum-precipitated sera of man, bovine, swine, rabbit, horse, dog, cat, mouse, chicken, duck, and pigeon were produced in rabbits and reacted with 758 mosquito blood meals among which reactions to one or more antisera. Culex annulus and Culex tritaeniorhynchus summorosus showed a great avidity for pig, and Culex fuscocephala for bovine. Culex pipiens fatigans was ornithophilic. None of 110 C. t. summorosus and 2.4% of 223 C. annulus had fed on man. Among 66 samples of C.p. fatigans tested 10.3% had fed on man, while none of 359 C. fuscocephala did. It seems that the latter does not act as a primary vector of Japanese encephalitis. |
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English |
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Series Editor |
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Series Issue |
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Edition |
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ISSN |
0009-4587 |
ISBN |
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Notes |
PMID:181218 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2702 |
Permanent link to this record |