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Author |
Trim, C.M.; Moore, J.N.; Clark, E.S. |
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Title |
Renal effects of dopamine infusion in conscious horses |
Type |
Journal Article |
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Year |
1989 |
Publication |
Equine veterinary journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
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Volume  |
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Issue |
7 |
Pages |
124-128 |
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Keywords |
Animals; Blood Pressure/drug effects/physiology; Consciousness/*physiology; Creatinine/blood; Dopamine/administration & dosage/*pharmacology; Dose-Response Relationship, Drug; Female; Heart Rate/drug effects/physiology; Horses/*physiology; Infusions, Intravenous/veterinary; Kidney/blood supply/*drug effects/physiology; Osmolar Concentration; Potassium/blood; Random Allocation; Regional Blood Flow/drug effects/physiology; Renal Artery/drug effects/physiology/ultrasonography; Sodium/blood; Time Factors; Ultrasonography/methods/veterinary; Urination/physiology |
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Abstract |
An ultrasonic flow probe was implanted around a branch of the left renal artery in five horses. The effects of dopamine were studied in the unsedated horses 10 days after surgery. Three experiments, separated by at least two days, were performed in random order on each horse. In two experiments, dopamine was infused intravenously for 60 mins at either 2.5 and 5.0 micrograms/kg bodyweight (bwt)/min. Saline was infused for 60 mins before and after each infusion, and for 180 mins in the third experiment as a control. Renal blood flow increased during administration of dopamine at both dose rates (P = 0.0001). Urine volume increased (P = 0.055), and osmolality decreased (P < 0.05), with infusion of dopamine at 5.0 micrograms/kg bwt/min. Arterial blood pressure and heart rate were not significantly affected. Fractional excretions of sodium and potassium were not significantly changed with dopamine infusion. The higher dopamine dose rate was accompanied by dysrhythmias in some horses. |
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Department of Large Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens 30602, USA |
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English |
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PMID:9118094 |
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Call Number |
refbase @ user @ |
Serial |
99 |
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Author |
Rau, R.E, |
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Title |
The museum's Quagga project |
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Manuscript |
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Year |
1989 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1500 |
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Author |
Kaplan, A.I.; Borodovskii, M.I. |
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Title |
[Alternative animal behavior: a model and its statistical characteristics] |
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Journal Article |
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Year |
1989 |
Publication |
Nauchnye Doklady Vysshei Shkoly. Biologicheskie Nauki |
Abbreviated Journal |
Nauchnye Doki Vyss Shkoly Biol Nauki |
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3 |
Pages |
29-32 |
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Keywords |
Animals; *Behavior, Animal; Cognition; Male; Mathematics; *Models, Biological; *Models, Statistical; Rats; Reinforcement (Psychology) |
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The rats' alternative behaviour in T-maze at simultaneous two-sided food refreshment in 13 trials a day during 6 days has been studied. It has been found that in the first testing days the indexes of alternative behaviour of animals correspond to the characteristics of the random alternation. However, on the 5-6th day of testing in the overwhelming majority of rats the true deviation of alternation index above or below than the theoretical values has been revealed. A question on the existence of two strategies of cognitive behaviour alteration and perseveration in rat population is under discussion. |
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Russian |
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Original Title |
Al'ternativnoe povedenie zhivotnykh: model' i statisticheskie kharakteristiki |
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0470-4606 |
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PMID:2742929 |
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Call Number |
Equine Behaviour @ team @ |
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2799 |
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Author |
de Waal, F. B. |
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Title |
Dominance “style” and primate social organization. |
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Year |
1989 |
Publication |
Comparative Socioecology |
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243-263 |
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Blackwell Science |
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Standen, V.; Foley, R. A. |
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978-0632023615 |
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no |
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refbase @ user @ |
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2864 |
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Author |
McCullough, P.; Nelder, J.A. |
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Title |
Generalized linear models. |
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Book Whole |
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Year |
1989 |
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Book Description
The success of the first edition of Generalized Linear Models led to the updated Second Edition, which continues to provide a definitive unified, treatment of methods for the analysis of diverse types of data. Today, it remains popular for its clarity, richness of content and direct relevance to agricultural, biological, health, engineering, and other applications. The authors focus on examining the way a response variable depends on a combination of explanatory variables, treatment, and classification variables. They give particular emphasis to the important case where the dependence occurs through some unknown, linear combination of the explanatory variables. The Second Edition includes topics added to the core of the first edition, including conditional and marginal likelihood methods, estimating equations, and models for dispersion effects and components of dispersion. The discussion of other topics-log-linear and related models, log odds-ratio regression models, multinomial response models, inverse linear and related models, quasi-likelihood functions, and model checking-was expanded and incorporates significant revisions. Comprehension of the material requires simply a knowledge of matrix theory and the basic ideas of probability theory, but for the most part, the book is self-contained. Therefore, with its worked examples, plentiful exercises, and topics of direct use to researchers in many disciplines, Generalized Linear Models serves as ideal text, self-study guide, and reference. |
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Chapman & Hall |
Place of Publication |
New York |
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2 |
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978-0412317606 |
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Equine Behaviour @ team @ |
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4370 |
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Author |
de Waal, F.B.M. |
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Title |
Peacemaking Among Primates |
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Miscellaneous |
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1989 |
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Equine Behaviour @ team @ |
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4924 |
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Author |
Harrington, F.H. |
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Title |
Chorus howling by wolves: Acoustic structures, pack size and Beau Geste effect |
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1989 |
Publication |
Bioacoustics |
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2 |
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Equine Behaviour @ team @ Harrington1989 |
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6463 |
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Author |
Rubenstein, D.I.; Hohmann, M.E |
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Title |
Parasites and Social Behavior of Island Feral Horses |
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Journal Article |
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Year |
1989 |
Publication |
Oikos |
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Oikos |
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3 |
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312-320 |
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Abstract |
The horses of Shackelford Banks, North Carolina, USA, are heavily parasitized by intestinal worms and harassed by dipterans, and although both types influence behavior only internal parasites affect bodily condition and the structuring of horse society. Thirteen species of internal parasites were identified, but only 4 of 13 groups contain them all and even within groups differences among individuals are large. Among individuals ova emissions vary ranging from 50 to 76,875 eggs per gram. The most important environmental factors influencing egg production are season and a group's location on the island, presumably because of salinity and soil differences and their effects on ova survival. Of the social and life history factors, age, and group size, but neither reproductive state nor dominance status are important. The fitness consequences of internal parasitism may be large since the number emitted is negatively correlated with next year's bodily condition. Biting fly burdens are also affected by a variety of environmental factors. In general, horses are covered with more flies on sunny days, when winds are moderately brisk, when occupying dunes, and around mid-day. In contrast to endoparasites, fly burden is affected by reproductive condition and dominance status and tends to decrease as groups increase in size. Since groups do not grow very large, nor do females attempt to bring groups together, the negative effects of endoparasites appear to overide those associated with ectoparasites. Consequently, endoparasites appear to exert a stronger influence on social structure, even though ectoparasites seem to play a stronger role in shaping details of behavior. |
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Equine Behaviour @ team @ |
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2360 |
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Author |
Klingel, H. |
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Title |
Odd-toed Ungulates, Horses |
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1989 |
Publication |
Grzimek's Encyclopedia of Mammals |
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4 |
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Pages |
550+557-594 |
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McGraw Hill |
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Grzimek, B. |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
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1320 |
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Author |
Gao, X; Gu, J. |
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Title |
The distribution and status of the Equidae in China. |
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Journal Article |
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Year |
1989 |
Publication |
Acta Theriologica Sinica |
Abbreviated Journal |
Acta Theriol. Sin. |
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Volume |
9 |
Issue |
4 |
Pages |
269-274 |
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from Professor Hans Klingels Equine Reference List |
Approved |
yes |
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Call Number |
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Serial |
1101 |
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