| Records |
| Author |
Forster, H.V.; Pan, L.G.; Bisgard, G.E.; Flynn, C.; Hoffer, R.E. |
| Title |
Changes in breathing when switching from nares to tracheostomy breathing in awake ponies |
Type |
Journal Article |
| Year |
1985 |
Publication |
Journal of applied physiology (Bethesda, Md. : 1985) |
Abbreviated Journal |
J Appl Physiol |
| Volume |
59 |
Issue |
4 |
Pages |
1214-1221 |
| Keywords |
Airway Resistance; Animals; Chemoreceptors/physiology; Consciousness; Exertion; Horses/*physiology; Lung Compliance; Pulmonary Gas Exchange; Pulmonary Stretch Receptors/physiology; *Respiration; Respiratory Dead Space; *Tracheotomy |
| Abstract |
We assessed the consequences of respiratory unloading associated with tracheostomy breathing (TBr). Three normal and three carotid body-denervated (CBD) ponies were prepared with chronic tracheostomies that at rest reduced physiological dead space (VD) from 483 +/- 60 to 255 +/- 30 ml and lung resistance from 1.5 +/- 0.14 to 0.5 +/- 0.07 cmH2O . l-1 . s. At rest and during steady-state mild-to-heavy exercise arterial PCO2 (PaCO2) was approximately 1 Torr higher during nares breathing (NBr) than during TBr. Pulmonary ventilation and tidal volume (VT) were greater and alveolar ventilation was less during NBr than TBr. Breathing frequency (f) did not differ between NBr and TBr at rest, but f during exercise was greater during TBr than during NBr. These responses did not differ between normal and CBD ponies. We also assessed the consequences of increasing external VD (300 ml) and resistance (R, 0.3 cmH2O . l-1 . s) by breathing through a tube. At rest and during mild exercise tube breathing caused PaCO2 to transiently increase 2-3 Torr, but 3-5 min later PaCO2 usually was within 1 Torr of control. Tube breathing did not cause f to change. When external R was increased 1 cmH2O . l-1 . s by breathing through a conventional air collection system, f did not change at rest, but during exercise f was lower than during unencumbered breathing. These responses did not differ between normal, CBD, and hilar nerve-denervated ponies, and they did not differ when external VD or R were added at either the nares or tracheostomy.(ABSTRACT TRUNCATED AT 250 WORDS) |
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8750-7587 |
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PMID:4055600 |
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100 |
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| Author |
Hendricks, J.C.; Morrison, A.R. |
| Title |
Normal and abnormal sleep in mammals |
Type |
Journal Article |
| Year |
1981 |
Publication |
Journal of the American Veterinary Medical Association |
Abbreviated Journal |
J Am Vet Med Assoc |
| Volume |
178 |
Issue |
2 |
Pages |
121-126 |
| Keywords |
Animals; Cat Diseases/physiopathology; Cats; Cattle; Dog Diseases/physiopathology; Dogs; Dreams; Horses/physiology; Humans; Narcolepsy/physiopathology/veterinary; Sleep/*physiology; Sleep Apnea Syndromes/physiopathology/veterinary; Sleep Disorders/physiopathology/*veterinary; Sleep, REM/physiology |
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0003-1488 |
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PMID:7204232 |
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refbase @ user @ |
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101 |
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| Author |
Hillidge, C.J.; Lees, P. |
| Title |
Cardiac output in the conscious and anaesthetised horse |
Type |
Journal Article |
| Year |
1975 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
7 |
Issue |
1 |
Pages |
16-21 |
| Keywords |
Anesthesia, Inhalation/*veterinary; Animals; Carbon Dioxide/blood; *Cardiac Output/veterinary; *Consciousness; Electrocardiography/veterinary; Ether, Ethyl; Female; Halothane; Heart Rate; Heart Ventricles/physiology; Horses/*physiology; Hydrogen-Ion Concentration; Male; Oxygen/blood; Posture |
| Abstract |
Cardiac output in the horse was measured before and at predetermined times during 2-hour periods of thiopentone-halothane and thiopentone-diethyl ether anaesthesia. Left ventricular stroke volume was decreased to a similar extent during anaesthesia with each volatile agent, but a greater reduction in cardiac output occurred during halothane anaesthesia. This finding reflected the differing effects of halothane and ether on heart rate, a slight bradycardia occurring with the former agent while ether produced a small degree of tachycardia. The latter effect was attributed to enhanced sympathoadrenal activity. Changes in cardiac output and stroke volume were considered in relation to other factors, including arterial blood pH and tensions of oxygen and carbon dioxide. Positive correlations between some of these variables and cardiac function were established. With both volatile agents the reductions in stroke volume and cardiac output were related to the duration of anaesthesia, being greatest during the early stages. Possible reasons for the tendency of stroke volume and cardiac output to return towards control levels are discussed. |
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0425-1644 |
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PMID:234842 |
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refbase @ user @ |
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102 |
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| Author |
Kirkpatrick, J.F.; Vail, R.; Devous, S.; Schwend, S.; Baker, C.B.; Wiesner, L. |
| Title |
Diurnal variation of plasma testosterone in wild stallions |
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Journal Article |
| Year |
1976 |
Publication |
Biology of reproduction |
Abbreviated Journal |
Biol Reprod |
| Volume |
15 |
Issue |
1 |
Pages |
98-101 |
| Keywords |
Animals; *Circadian Rhythm; Horses/*blood; Male; Montana; Sexual Behavior, Animal; Species Specificity; Testosterone/*blood |
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| ISSN |
0006-3363 |
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PMID:986195 |
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refbase @ user @ |
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149 |
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| Author |
Hertsch, B.; Becker, C. |
| Title |
[Occurrence of aseptic necrosis of the palmar and plantar ligament in the horse--a contribution to the differentiation of sesamoid bone diseases] |
Type |
Journal Article |
| Year |
1986 |
Publication |
DTW. Deutsche tierarztliche Wochenschrift |
Abbreviated Journal |
Dtsch Tierarztl Wochenschr |
| Volume |
93 |
Issue |
6 |
Pages |
263-266 |
| Keywords |
Animals; Diagnosis, Differential; Horse Diseases/*pathology; Horses; Ligaments, Articular/*pathology; Osteonecrosis/*pathology; Sesamoid Bones/*pathology |
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German |
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Zum Vorkommen der aseptischen Nekrose im Ligamentum palmare bzw. plantare beim Pferd--ein Beitrag zur Differenzierung der Gleichbeinerkrankungen |
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0341-6593 |
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| Notes |
PMID:3527654 |
Approved |
no |
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refbase @ user @ |
Serial |
150 |
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| Author |
Zentall, T.R.; Hogan, D.E.; Edwards, C.A.; Hearst, E. |
| Title |
Oddity learning in the pigeon as a function of the number of incorrect alternatives |
Type |
Journal Article |
| Year |
1980 |
Publication |
Journal of experimental psychology. Animal behavior processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
| Volume |
6 |
Issue |
3 |
Pages |
278-299 |
| Keywords |
Animals; Choice Behavior; *Color Perception; Columbidae; *Discrimination Learning |
| Abstract |
Pigeons' rate of learning a two-color oddity task increased as a function of the number of incorrect alternatives from 2 to 24 in Experiments 1, 2, and 3. In general, pigeons that were transferred from many-incorrect-alternative to two-incorrect-alternative oddity performed better than controls, but considerably below baseline (Experiments 2 and 3). In Experiment 4, pigeons showed no unconditioned tendency to peck the odd stimulus among 24 incorect alternatives, when pecks were nondifferentially reinforced, and in Experiment 5, when this procedure was preceded by oddity training, a progressive drop in odd-stimulus pecking was found. In Experiment 6, pigeons exposed to a nine-stimulus array in which the odd stimulus appeared (a) in the center or (b) separate from the array learned faster than when the odd stimulus was at the edge. This outcome suggests ththe figure-ground relation between the odd stimulus and the incorrect alternatives plays a role in the facilitation produced by increasing the number of incorrect alternatives but that poor performance on the standard, three-alternative oddity task appears to be due to center-odd trials which provide a difficult size or number discrimination. |
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0097-7403 |
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PMID:7391753 |
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refbase @ user @ |
Serial |
268 |
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| Author |
Whiten, A.; McGrew, W.C. |
| Title |
Is this the first portrayal of tool use by a chimp? |
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2001 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
409 |
Issue |
6816 |
Pages |
12 |
| Keywords |
Animals; *Behavior, Animal; Pan troglodytes/*physiology; Philately |
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0028-0836 |
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PMID:11343083 |
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no |
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refbase @ user @ |
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739 |
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| Author |
Dyer, F.C. |
| Title |
Animal behaviour: when it pays to waggle |
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2002 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
419 |
Issue |
6910 |
Pages |
885-886 |
| Keywords |
*Animal Communication; Animals; Bees/*physiology; California; Dancing/physiology; Environment; Evolution; Female; Flowers/chemistry; *Food; Gravitation; Lighting; Motor Activity/*physiology; Odors; Seasons; Sunlight |
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0028-0836 |
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PMID:12410290 |
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refbase @ user @ |
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769 |
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| Author |
Duncan P, C.P. |
| Title |
An unusual choice of habitat helps Camargue horses to avoid blood-sucking horse-flies |
Type |
Journal Article |
| Year |
1980 |
Publication |
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Abbreviated Journal |
Biol Behav |
| Volume |
5 |
Issue |
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Pages |
55-60 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1036 |
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| Author |
Eisenmann V, G.D.C. |
| Title |
Caractères distinctifs des premières phalanges antérieures et postérieures chez certains équidés actuels et fossiles |
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Journal Article |
| Year |
1974 |
Publication |
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Abbreviated Journal |
Bull Soc g?ol France |
| Volume |
16 |
Issue |
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Pages |
352-361 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1059 |
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