| Records |
Author  |
Hutchinson, G.W.; Abba, S.A.; Mfitilodze, M.W. |
| Title |
Seasonal translation of equine strongyle infective larvae to herbage in tropical Australia |
Type |
Journal Article |
| Year |
1989 |
Publication |
Veterinary Parasitology |
Abbreviated Journal |
Vet Parasitol |
| Volume |
33 |
Issue |
3-4 |
Pages |
251-263 |
| Keywords |
Animals; Feces/*parasitology; Horses; Queensland; Seasons; Strongyle Infections, Equine/*parasitology; Strongyloidea/growth & development/*physiology; Strongylus/growth & development/*physiology; Tropical Climate |
| Abstract |
Longevity in faeces, migration to and survival on herbage of mixed strongyle infective larvae (approximately 70% cyathostomes: 30% large strongyles) from experimentally deposited horse faeces was studied in the dry tropical region of North Queensland for up to 2 years. Larvae were recovered from faeces deposited during hot dry weather for a maximum of 12 weeks, up to 32 weeks in cool conditions, but less than 8 weeks in hot wet summer. Translation to herbage was mainly limited to the hot wet season (December-March), except when unseasonal winter rainfall of 40-50 mm per month in July and August allowed some additional migration. Survival on pasture was estimated at 2-4 weeks in the summer wet season and 8-12 weeks in the autumn-winter dry season (April-August). Hot dry spring weather (pre-wet season) was the most unfavourable for larval development, migration and survival. Peak counts of up to 60,000 larvae kg-1 dry herbage were recorded. The seasonal nature of pasture contamination allowed the development of rational anthelmintic control programs based on larval ecology. |
| Address |
Graduate School of Tropical Veterinary Science, James Cook University of North Queensland, Townsville, Australia |
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English |
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| ISSN |
0304-4017 |
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| Notes |
PMID:2815535 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2672 |
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| Author |
Hunter, L.; Houpt, K..A. |
| Title |
Bedding material preferences of ponies. |
Type |
Journal Article |
| Year |
1989 |
Publication |
Journal of American Society of Animal Science |
Abbreviated Journal |
J Anim Sci |
| Volume |
67 |
Issue |
8 |
Pages |
1986-1991 |
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| Abstract |
The bedding preferences of ponies were determined using video recordings of nighttime (1900 to 0700) behavior of individually housed ponies. The ponies' behavior each minute was recorded to determine time budgets. In Exp. I, preference for bedding was determined using three mares, three stallions and two geldings given access to bedded and unbedded areas in a box stall. The ponies spent more time (66%) on the bedded area and were never observed lying on the unbedded areas. In Exp. II, three mares and six stallions were given access to a box stall, one side of which was bedded with wood shavings and the other with straw. Although some individual animals preferred one bedding over the other, neither form of bedding was preferred consistently. Time budgets in Exp. II were similar on both bedding materials. The ponies spent 12% of their nighttime lying, 2% walking, 35% eating and 50% standing inactively. Some ponies had a relatively strong preference for bedding, but the type of bedding preferred varied with the individual animal. Some individual ponies had no clear preference, but instead had a side or position preference |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
| Call Number |
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Serial |
1211 |
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| Author |
Huizinga, H.A.; van der Meij, G.J.W. |
| Title |
Estimated parameters of performance in jumping and dressage competition of the Dutch Warmblood horse |
Type |
Journal Article |
| Year |
1989 |
Publication |
Livestock Production Science |
Abbreviated Journal |
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| Volume |
21 |
Issue |
4 |
Pages |
333-345 |
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| Abstract |
The objective of this study is to estimate several genetic parameters in the Dutch Warmblood riding horse population. The traits involved are performances in jumping and dressage competition. The following parameters are estimated: heritabilities for jumping and dressage; phenotypic and genetic correlations between jumping and dressage; and phenotypic and genetic correlations between performances at different ages. These parameters are estimated by restricted maximum likelihood (REML). Data are from 6899 horses with performances in jumping and 10 408 horses with performances in dressage competition. The horses are sired by 205 and 237 stallions for the two traits, respectively. The progeny range in age from 4 to 8 years old. The performance trait is a cumulatively derived score, that reflects the level of performance in competition. A square root transformation of the score is most appropriate to normalize the data. For estimation of phenotypic and genetic parameters the data is split into two data sets according to the age of the sires (offspring sired by older vs. younger stallions). For estimating correlations between performances at 4, 5 and 6 years of age, performances of the offspring out of previous years are linked to the data. The most unbiased estimates of heritability for jumping and dressage are from data derived from the youngest offspring sired by the younger stallions and are 0.20 and 0.10, respectively. Genetic correlation between jumping and dressage ranges from -0.27 to 0.10. The phenotypic correlation between these traits ranges from 0.15 to 0.26. Phenotypic and genetic correlations between performances at 4, 5 and 6 years average 0.95 and 0.75, respectively. These latter results have important implications for genetic evaluation of breeding candidates in the population. |
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no |
| Call Number |
refbase @ user @ |
Serial |
3966 |
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| Author |
Houpt, K.A.; Thornton, S.N.; Allen, W.R. |
| Title |
Vasopressin in dehydrated and rehydrated ponies |
Type |
Journal Article |
| Year |
1989 |
Publication |
Physiology & behavior |
Abbreviated Journal |
Physiol. Behav. |
| Volume |
45 |
Issue |
3 |
Pages |
659-661 |
| Keywords |
Animals; Behavior, Animal/*physiology; Dehydration/*blood; Drinking Behavior/*physiology; Female; Horses/*blood; Osmolar Concentration; Reaction Time; Time Factors; Vasopressins/*blood |
| Abstract |
Six pony mares deprived of water for 24 hours showed significant increases in plasma vasopressin (2.8 pg/ml) and osmolality (9 mosmol/kg). When water was made available the ponies drank rapidly (5 of 6 drank to satiety within 90 seconds) and corrected their fluid deficits precisely. Vasopressin did not return to predehydration levels until osmolality did after 15 minutes of access to water. The horse differs from rodents and humans, but is similar to pigs in that vasopressin levels do not fall before osmolality returns to normal. Oropharyngeal factors, therefore, may not be as important in vasopressin release in horses as in other species. |
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New York State College of Veterinary Medicine, Cornell University, Ithaca 14853-6401 |
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English |
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0031-9384 |
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| Notes |
PMID:2756059 |
Approved |
no |
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refbase @ user @ |
Serial |
45 |
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| Author |
Herder, S.L. |
| Title |
More cardiac dressage: galop, gallop, gal(l)opitty glop |
Type |
Journal Article |
| Year |
1989 |
Publication |
JAMA : the Journal of the American Medical Association |
Abbreviated Journal |
Jama |
| Volume |
262 |
Issue |
3 |
Pages |
352 |
| Keywords |
Animals; Gait; *Heart Rate; Horses; Humans; Terminology; *Wit and Humor |
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0098-7484 |
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| Notes |
PMID:2739033 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
3757 |
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| Author |
Harrington, F.H. |
| Title |
Chorus howling by wolves: Acoustic structures, pack size and Beau Geste effect |
Type |
Journal Article |
| Year |
1989 |
Publication |
Bioacoustics |
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| Volume |
2 |
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Equine Behaviour @ team @ Harrington1989 |
Serial |
6463 |
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| Author |
Ginsberg, J.R., |
| Title |
The ecology of female behaviour and male mating success in the Grevy's zebra |
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Journal Article |
| Year |
1989 |
Publication |
Symposium of the Zoological Society of London |
Abbreviated Journal |
Symp zool Soc Lond |
| Volume |
61 |
Issue |
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Pages |
89-110 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
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Serial |
1112 |
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| Author |
Gao, X; Gu, J. |
| Title |
The distribution and status of the Equidae in China. |
Type |
Journal Article |
| Year |
1989 |
Publication |
Acta Theriologica Sinica |
Abbreviated Journal |
Acta Theriol. Sin. |
| Volume |
9 |
Issue |
4 |
Pages |
269-274 |
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from Professor Hans Klingels Equine Reference List |
Approved |
yes |
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Serial |
1101 |
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| Author |
Gallistel, C.R. |
| Title |
Animal Cognition: The Representation of Space, Time and Number |
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Journal Article |
| Year |
1989 |
Publication |
Annual Review of Psychology |
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| Volume |
40 |
Issue |
1 |
Pages |
155-189 |
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no |
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Equine Behaviour @ team @ |
Serial |
2972 |
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| Author |
Galef, B.G. |
| Title |
Enduring social enhancement of rats' preferences for the palatable and the piquant |
Type |
Journal Article |
| Year |
1989 |
Publication |
Appetite |
Abbreviated Journal |
Appetite |
| Volume |
13 |
Issue |
2 |
Pages |
81-92 |
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| Abstract |
In three experiments on the social induction of food preferences in rats, I found: (a) that eight 30-min exposures of a naive “observer” rat to a “demonstrator” rat fed one of two approximately equipalatable diets produced observer preference for the diet fed to its demonstrator that lasted for more than a month, (b) that simple exposure of naive subjects to a diet itself, rather than to a rat that had eaten a diet, was not sufficient to enhance preference for that diet, and (c) that lasting preference for an unpalatable, piquant diet could also be established by exposing naive rats to demonstrators that had eaten the piquant diet, but not by simply exposure to the piquant diet itself. These findings are consistent with the hypothesis proposed by both Birch and Rozin that social-affective contexts are important in establishing stable, learned preferences for foods. |
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0195-6663 |
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no |
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Equine Behaviour @ team @ |
Serial |
6567 |
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