| Records |
| Author |
Houpt, K.A. |
| Title |
Ingestive behavior |
Type |
Journal Article |
| Year |
1990 |
Publication |
The Veterinary clinics of North America. Equine practice |
Abbreviated Journal |
Vet Clin North Am Equine Pract |
Volume  |
6 |
Issue |
2 |
Pages |
319-337 |
| Keywords |
Animals; Eating/*physiology; Feeding Behavior/*physiology; Horses/*physiology |
| Abstract |
In summary, horses spend 60% or more of their time eating when grazing or when feed is available free choice. Grasses are their preferred food, but they supplement the grass with herbs and woody plants. Sweetened mixtures of oats and corn are the most preferred concentrate. Horses can increase or decrease the time spent eating and amount eaten to maintain caloric intake. Their intake is stimulated by drugs such as diazepam and by the presence of other horses. Horses stop eating when gastric osmolality increases; increases in plasma osmolality, protein, and glucose accompany digestion. Foals eat several times an hour and begin sampling solid food at the same time that their dam is eating. Several areas of particular importance to the equine industry have not been investigated. These areas include the effect of exercise on short- and long-term food intake and the influence of reproductive state on the feeding of mares. |
| Address |
Department of Physiology, New York State College of Veterinary Medicine, Cornell University, Ithaca |
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| Language |
English |
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Series Issue |
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Edition |
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| ISSN |
0749-0739 |
ISBN |
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Medium |
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| Notes |
PMID:2202495 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
42 |
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| Author |
BASHORE, T. L.; KEIPER, R.; TURNER ,J. W. JR; KIRKPATRICK J. F. |
| Title |
The accuracy of fixed-wing aerial surveys of feral horses on a coastal barrier island |
Type |
Journal Article |
| Year |
1990 |
Publication |
Journal of coastal research |
Abbreviated Journal |
J. coast. res |
| Volume |
6 |
Issue |
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Pages |
53-56 |
| Keywords |
Accuracy; Airborne methods; Vegetation; Barrier islands; Maryland; Ground methods; United States; North America; America |
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Edition |
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| ISSN |
0749-0208 |
ISBN |
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Medium |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2221 |
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| Author |
Loyola, E.G.; Rodriguez, M.H.; Gonzalez, L.; Arredondo, J.I.; Bown, D.N.; Vaca, M.A. |
| Title |
Effect of indoor residual spraying of DDT and bendiocarb on the feeding patterns of Anopheles pseudopunctipennis in Mexico |
Type |
Journal Article |
| Year |
1990 |
Publication |
Journal of the American Mosquito Control Association |
Abbreviated Journal |
J Am Mosq Control Assoc |
| Volume |
6 |
Issue |
4 |
Pages |
635-640 |
| Keywords |
Animals; Anopheles/*physiology; *Carbamates; Cattle; *Ddt; Ecology; Enzyme-Linked Immunosorbent Assay; Feeding Behavior/*drug effects; Horses; Humans; Insect Vectors; Insecticide Resistance; *Insecticides; Mexico; *Phenylcarbamates; Seasons |
| Abstract |
Intense and persistent use of DDT for malaria control has increased resistance and induced exophilic behavior of Anopheles pseudopunctipennis. An evaluation of bendiocarb and DDT to control this species in Sinaloa, Mexico, showed that, in spite of DDT-resistance, both insecticides produced similar effects. Feeding patterns were analyzed to explain these results. Resting mosquitoes were collected over the dry and wet seasons. Anophelines were tested in an ELISA to determine the source of the meals. The human blood index (HBI) ranged from 3.3 to 6.8% in DDT- and from 12.7 to 26.9% in bendiocarb-sprayed houses. Irritability and repellency in DDT-sprayed houses could explain the reduced HBI. In contrast, bendiocarb produced higher mortality. These effects could have affected different components of the vectorial capacity and similarly reduced malaria. |
| Address |
Center for Malaria Research, Chiapas, Mexico |
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| Language |
English |
Summary Language |
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Edition |
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| ISSN |
8756-971X |
ISBN |
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| Notes |
PMID:2098469 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2671 |
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| Author |
Kirkpatrick, J. F.; Lasley, B. L.; Shideler,S. E. |
| Title |
Urinary steroid evaluations to monitor ovarian function in exotic ungulates |
Type |
Journal Article |
| Year |
1990 |
Publication |
Zoo Biology |
Abbreviated Journal |
Zoo Biol |
| Volume |
9 |
Issue |
5 |
Pages |
341 - 348 |
| Keywords |
Perissodactyla – ovulation – corpus luteum |
| Abstract |
A direct enzyme immunoassay (EIA) for non-specific urinary progesterone (Po) metabolites, utilizing a non-specific monoclonal antibody against pregnanediol-3-glucuronide, was evaluated for the purpose of assessing luteal function in equids. Urinary pregnanediol-3-glucuronide (PdG) and immunoreactive PdG-like conjugate (iPdG) concentrations, indexed by creatinine, were compared to plasma Po concentrations in non-conceptive ovarian cycles through two ovulations in four mares. High-performance liquid chromatography (HPLC) of urine from lutealphase mares and a pregnant zebra revealed an absence of significant concentrations of PdG and the presence of at least three immunoreactive compounds, all of which were more polar than PdG. The concentration of iPdG in the mare ranged from a nadir of approximately 3 ng/mg Cr at the time of ovulation to nearly 400 ng/mg Cr at the mid-luteal-phase peak and paralleled plasma Po concentrations. This non-radiometric assay for iPdG permits the assessment of ovulation, luteal formation and function, and luteolysis in unprocessed urine samples from domestic mares. Data from a single zebra indicate this approach also will permit simplified and non-invasive longitudinal studies of ovarian function among a wide range of Equidae. |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
| Call Number |
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Serial |
1274 |
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| Author |
Wittling, W.; Pflüger, M. |
| Title |
Neuroendocrine hemisphere asymmetries: Salivary cortisol secretion during lateralized viewing of emotion-related and neutral films |
Type |
Journal Article |
| Year |
1990 |
Publication |
Brain and Cognition |
Abbreviated Journal |
Brain Cogn. |
| Volume |
14 |
Issue |
2 |
Pages |
243-265 |
| Keywords |
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| Abstract |
The study set out to examine whether the cerebral hemispheres differ in their ability to regulate cortisol secretion during emotion-related situations. One hundred twenty-three adult subjects were shown either an emotionally aversive or a neutral film in the left or right hemisphere by means of a technique for lateralizing visual input that allows prolonged viewing while permitting free ocular scanning. The film-related changes of cortisol secretion were determined by salivary cortisol radioimmunoassay. Right hemispheric viewing of the emotionally aversive film resulted in a significantly higher increase of cortisol secretion than left hemispheric viewing of the same film. No such differences were observed with respect to the neutral film. Comparing the effects of the two films separately for each hemisphere revealed that only the right hemisphere was able to respond neuroendocrinologically in a different manner to the emotional and the neutral film. Therefore, it is concluded that cortical regulation of cortisol secretion in emotion-related situations is under primary control of the right hemisphere. The potential implications of asymmetric control of cortisol secretion with respect to the pathogenesis of psychosomatic and immunological disorders are discussed. |
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Series Issue |
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Edition |
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| ISSN |
0278-2626 |
ISBN |
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Medium |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5350 |
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| Author |
Stander, P.E., Nott, T.B., Lindeque, P.M.; Lindeque, M. |
| Title |
Mass marking of zebras in the Etosha National Park, Namibia |
Type |
Journal Article |
| Year |
1990 |
Publication |
Madoqua |
Abbreviated Journal |
Madoqua |
| Volume |
17 |
Issue |
1 |
Pages |
47-49 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
| Call Number |
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Serial |
1627 |
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| Author |
Wiesner, J.; V. Hegel, G. |
| Title |
Zur Immobilisation von Wildequiden mit STH 2130 und Tiletamin/Zolazepam |
Type |
Journal Article |
| Year |
1990 |
Publication |
Tierärtzliche Praxis |
Abbreviated Journal |
Tierärzl Prax |
| Volume |
18 |
Issue |
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Pages |
151-154 |
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Expedition |
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Conference |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
| Call Number |
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Serial |
1707 |
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| Author |
Edgar, G.K.; Smith, A.T. |
| Title |
Hemifield differences in perceived spatial frequency |
Type |
Journal Article |
| Year |
1990 |
Publication |
Perception |
Abbreviated Journal |
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| Volume |
19 |
Issue |
6 |
Pages |
759-766 |
| Keywords |
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| Abstract |
Measurements of the perceived spatial frequency of stationary sinewave gratings were made with the gratings presented at the same eccentricity in the left, right, upper, and lower visual hemifields. Ten subjects performed the task binocularly with spatial frequencies of 1, 2, and 4 cycles deg-1. Two of these subjects also performed the task monocularly at 2 cycles deg-1. In the majority of cases, the spatial frequency of stimuli presented in the left and lower visual hemifields was overestimated relative to stimuli presented in the right and upper visual hemifields. The results were similar for all spatial frequencies tested, and the direction of the asymmetry was the same whether viewing was with the left eye, right eye or binocular, suggesting that the differences in perceived spatial frequency are not retinal in origin. |
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Pion Ltd |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5374 |
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| Author |
Byrne, R.W.; Whiten, A.; Henzi, S.P. |
| Title |
Social relationships of mountain baboons: Leadership and affiliation in a non-female-bonded monkey |
Type |
Journal Article |
| Year |
1990 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
| Volume |
20 |
Issue |
4 |
Pages |
313-329 |
| Keywords |
relationships; one-male groups; female-bonding; spacing; support; Papio ursinus; Papio hamadryas |
| Abstract |
Abstract 10.1002/ajp.1350200409.abs Instead of close and differentiated relationships among adult females, the accepted norm for savanna baboons, groups of Drakensberg mountain baboons (Papio ursinus) showed strong affiliation of females towards a single male. The same male was usually the decision-making animal in controlling group movements. Lactating or pregnant females focused their grooming on this “leader” male, producing a radially patterned sociogram, as in the desert baboon (P. hamadryas); the leader male supported young animals in the group against aggression and protected them against external threats. Unlike typical savanna baboons, these mountain baboons rarely displayed approach-retreat or triadic interactions, and entirely lacked coalitions among adult females. Both groups studied were reproductively one-male; male-female relationships in one were like those in a unit of a hamadryas male at his peak, while the other group resembled the unit of an old hamadryas male, who still leads the group, with a male follower starting to build up a new unit and already monopolizing mating. In their mountain environment, where the low population density suggests conditions as harsh for baboons as in deserts, adults in these groups kept unusually large distances apart during ranging; kin tended to range apart, and spacing of adults was greatest at the end of the dry, winter season. These facts support the hypothesis that sparse food is responsible for convergence with hamadryas social organization. It is suggested that all baboons, though matrilocal, are better categorized as “cross-sex-bonded” than “female bonded”. |
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Wiley Subscription Services, Inc., A Wiley Company |
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Edition |
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| ISSN |
1098-2345 |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5309 |
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| Author |
Holmstrom, M.; Magnusson, L.E.; Philipsson, J. |
| Title |
Variation in conformation of Swedish warmblood horses and conformational characteristics of elite sport horses |
Type |
Journal Article |
| Year |
1990 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
22 |
Issue |
3 |
Pages |
186-193 |
| Keywords |
Age Factors; Analysis of Variance; Animals; *Breeding; Female; Forelimb/anatomy & histology; Hindlimb/anatomy & histology; Horses/*anatomy & histology/physiology; Least-Squares Analysis; Male; Physical Conditioning, Animal; Regression Analysis; Sex Characteristics |
| Abstract |
The variation in conformation of 356 Swedish Warmblood horses is described, using a quantitative method of measuring horses. Thirty-three of the horses were elite dressage horses, 28 were elite showjumpers, 100 were riding school horses and 195 were unselected four-year-olds. Most horses had a long body form. The average height at the withers was 163.4 cm. Sixty per cent of the horses had a bench knee conformation, 50 per cent had a toe-in conformation of the forelimbs and 80 per cent had outwardly rotated hind limbs. The majority of these deviations were mild or moderate. Conformation was influenced by sex and age. Mares were smaller and had longer bodies and shorter limbs. The elite dressage horses and showjumpers had larger hock angles and more sloping scapulas than other horses. The showjumpers also had smaller fetlock angles in the front limbs. It is suggested that the larger hock angles among the elite horses may be because hocks with small angles are more prone to injury, and because small hock angles may negatively influence the ability to attain the degree of collection necessary for good performance in advanced classes. |
| Address |
Department of Animal Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Skara |
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English |
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Edition |
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| ISSN |
0425-1644 |
ISBN |
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| Notes |
PMID:2361507 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
3756 |
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