Records |
Author |
Polley, L. |
Title |
Strongylid parasites of horses: experimental ecology of the free-living stages on the Canadian prairie |
Type |
Journal Article |
Year |
1986 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
Am J Vet Res |
Volume |
47 |
Issue |
8 |
Pages |
1686-1693 |
Keywords |
Animals; Canada; Ecology; Feces; Female; Horse Diseases/*epidemiology/parasitology; Horses; Larva; Ovum/cytology; Seasons; Strongyloides/isolation & purification; Strongyloidiasis/epidemiology/*veterinary |
Abstract |
Each month for a 1-year period (October through September), equine fecal masses containing eggs of strongylid nematodes were placed outdoors on small grass plots in Saskatchewan, Canada. Thereafter, feces and grass from the plots were sampled after intervals of 1 week or longer, and the strongylid eggs and larvae recovered were counted. These observations were made over a 2-year period. Development of eggs to infective larvae occurred in all experiments, except those established in October, December, and January. Infective larvae from experiments set up in April through September survived that winter. During the summer, there was a gradual build up of infective larvae in the fecal masses, which reached a peak in August and September and then decreased into the winter. These results are discussed in the context of the control of strongylid parasites of horses on the Canadian prairie and in other areas of the world with a similar climate and similar horse management practices. |
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English |
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ISSN |
0002-9645 |
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Notes |
PMID:3752676 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2682 |
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Author |
Kralj-Fiser, S.; Scheiber, I.B.R.; Blejec, A.; Moestl, E.; Kotrschal, K. |
Title |
Individualities in a flock of free-roaming greylag geese: behavioral and physiological consistency over time and across situations |
Type |
Journal Article |
Year |
2007 |
Publication |
Hormones and Behavior |
Abbreviated Journal |
Horm Behav |
Volume |
51 |
Issue |
2 |
Pages |
239-248 |
Keywords |
Animals; Behavior, Animal/*physiology; Corticosterone/metabolism; Feces; Female; Geese/*physiology; Individuality; Male; Personality/*physiology; Population Density; Reproducibility of Results; Seasons; *Social Behavior; Social Environment; Testosterone/*metabolism |
Abstract |
The concept of personality implies individual differences in behavior and physiology that show some degree of repeatability/consistency over time and across contexts. Most studies of animal personality, particularly studies of individuals' variation in physiological mechanisms, have been conducted on selected individuals in controlled conditions. We attempted to detect consistent behaviors as well as physiological patterns in greylag ganders (Anser anser) from a free-roaming flock living in semi-natural conditions. We tested 10 individuals repeatedly, in a handling trial, resembling tests for characterization of “temperaments” in captive animals. We recorded the behavior of the same 10 individuals during four situations in the socially intact flock: (1) a “low density feeding condition”, (2) a “high density feeding condition”, (3) a “low density post-feeding situation” and (4) while the geese rested. We collected fecal samples for determination of excreted immuno-reactive corticosterone (BM) and testosterone metabolites (TM) after handling trials, as well as the “low density feeding” and the “high density feeding” conditions. BM levels were very highly consistent over the repeats of handling trials, and the “low density feeding condition” and tended to be consistent over the first two repeats of the “high density feeding condition”. Also, BM responses tended to be consistent across contexts. Despite seasonal variation, there tended to be inter-test consistency of TM, which pointed to some individual differences in TM as well. Aggressiveness turned out to be a highly repeatable trait, which was consistent across social situations, and tended to correlate with an individual's resistance during handling trials. Also, “proximity to the female partner” and “sociability” – the average number of neighboring geese in a close distance while resting – were consistent. We conclude that aggressiveness, “affiliative tendencies” and levels of excreted corticosterone and testosterone metabolites may be crucial factors of personality in geese. |
Address |
University of Ljubljana, Biotechnical faculty, Slovenia. simona.kralj@guest.arnes.si |
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ISSN |
0018-506X |
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Notes |
PMID:17196200 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4189 |
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Author |
Hoogstraal, H.; Mitchell, R.M. |
Title |
Haemaphysalis (Alloceraea) aponommoides Warburton (Ixodoidea: Ixodidae), description of immature stages, hosts, distribution, and ecology in India, Nepal, Sikkim, and China |
Type |
Journal Article |
Year |
1971 |
Publication |
The Journal of Parasitology |
Abbreviated Journal |
J Parasitol |
Volume |
57 |
Issue |
3 |
Pages |
635-645 |
Keywords |
Altitude; Animals; Artiodactyla; Birds; Buffaloes; Carnivora; Cattle; China; Deer; Dogs; Ecology; Female; Goats; Horses; Humans; India; Insectivora; Larva/anatomy & histology; Male; Mice; Nepal; Rats; Rodentia; Sciuridae; Seasons; Sheep; Tick Infestations/*epidemiology; Ticks/*anatomy & histology/growth & development |
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English |
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Edition |
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ISSN |
0022-3395 |
ISBN |
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Conference |
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Notes |
PMID:5090972 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2730 |
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Author |
Crowell-Davis, S.L.; Houpt, K.A.; Carnevale, J. |
Title |
Feeding and drinking behavior of mares and foals with free access to pasture and water |
Type |
Journal Article |
Year |
1985 |
Publication |
Journal of animal science |
Abbreviated Journal |
J. Anim Sci. |
Volume |
60 |
Issue |
4 |
Pages |
883-889 |
Keywords |
Animals; *Drinking Behavior; *Feeding Behavior; Female; Horses/*physiology; Male; Poaceae; Seasons; Temperature; Time Factors |
Abstract |
The feeding and drinking behavior of 11 mares and 15 foals living on pasture with free access to water was recorded during 2,340 15-min focal samples taken over 2 yr. Lactating mares on pasture spent about 70% of the day feeding. Foals began feeding on their first day of life. As they grew older, they spent progressively more time feeding, but still spent only 47 +/- 6% of the time feeding by 21 wk of age. Foals fed primarily during the early morning and evening. While grass formed the major proportion of the diet of both foals and mares, they also ate clay, humus, feces, bark, leaves and twigs. Almost all feeding by foals was done while their mothers were feeding. Movement to water sources was frequently, but not invariably, carried out by an entire herd. Frequency (P = .005) but not duration (P greater than .05) of drinking bouts by mares increased as the temperature increased. Frequency was greatest at 30 to 35 C, at which temperature mares drank once every 1.8 h. Frequency of drinking varied with the time of day (P less than .01), being rarest during the early morning (0500 to 0900 h eastern daylight time) and most frequent during the afternoon (1300 to 1700 h). Drinking by foals was very rare. The youngest age at which a foal was observed to drink was 3 wk, and 8 of 15 foals were never observed to drink before weaning. |
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ISSN |
0021-8812 |
ISBN |
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Notes |
PMID:3988655 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
54 |
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Author |
Khalil, A.M.; Murakami, N.; Kaseda, Y. |
Title |
Relationship between plasma testosterone concentrations and age, breeding season and harem size in Misaki feral horses |
Type |
Journal Article |
Year |
1998 |
Publication |
The Journal of veterinary medical science / the Japanese Society of Veterinary Science |
Abbreviated Journal |
J Vet Med Sci |
Volume |
60 |
Issue |
5 |
Pages |
643-645 |
Keywords |
Age Factors; Animals; Animals, Wild; *Horses; Japan; Male; Reproduction; Seasons; Sexual Behavior, Animal; Sexual Maturation; *Social Behavior; Testosterone/*blood |
Abstract |
Jugular vein blood samples were collected from 23 young and sexual mature feral stallions to examine the relationship between plasma testosterone concentration and age, breeding season or harem size. Testosterone concentration increased with the age of the stallions until they formed their own harems, at about 4 to 6 years old. Seasonal variations in testosterone concentrations were observed, and found to be significantly higher (P<0.001) throughout the breeding season than non-breeding season, from 3 years of age. Testosterone levels were correlated with harem size for individual stallions. It can be inferred from these results that there is a relationship between plasma testosterone concentration and age, breeding season and harem size. |
Address |
Laboratory of Animal Behavioral Science, Faculty of Agriculture, Miyazaki University, Japan |
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ISSN |
0916-7250 |
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Notes |
PMID:9637303 |
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no |
Call Number |
refbase @ user @ |
Serial |
137 |
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Author |
Ogbourne, C.P. |
Title |
Variations in the fecundity of strongylid worms of the horse |
Type |
Journal Article |
Year |
1971 |
Publication |
Parasitology |
Abbreviated Journal |
Parasitology |
Volume |
63 |
Issue |
2 |
Pages |
289-298 |
Keywords |
Animals; Animals, Newborn; Ecology; Feces; Female; Horses; Larva/growth & development; Male; Ovum; Parasite Egg Count; Reproduction; Seasons; Strongyle Infections, Equine/*etiology; Strongyloides/*growth & development; Time Factors |
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ISSN |
0031-1820 |
ISBN |
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Area |
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Conference |
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Notes |
PMID:5129804 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2727 |
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Author |
Bertram, D.S. |
Title |
Mosquitoes of British Honduras, with some comments on malaria, and on arbovirus antibodies in man and equines |
Type |
Journal Article |
Year |
1971 |
Publication |
Transactions of the Royal Society of Tropical Medicine and Hygiene |
Abbreviated Journal |
Trans R Soc Trop Med Hyg |
Volume |
65 |
Issue |
6 |
Pages |
742-762 |
Keywords |
Aedes; Animals; Anopheles; Antibodies/*analysis; Arbovirus Infections/*epidemiology/immunology/veterinary; Belize; Culex; *Culicidae/classification; Ecology; Encephalitis Virus, St. Louis/immunology; Encephalitis Virus, Venezuelan Equine/immunology; Horse Diseases/*epidemiology/immunology; Horses; Humans; Insect Vectors; Malaria/*epidemiology; Neutralization Tests; Seasons |
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ISSN |
0035-9203 |
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Notes |
PMID:4400502 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2732 |
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Author |
Kirkpatrick, J.F.; Wiesner, L.; Kenney, R.M.; Ganjam, V.K.; Turner, J.W. |
Title |
Seasonal variation in plasma androgens and testosterone in the North American wild horse |
Type |
Journal Article |
Year |
1977 |
Publication |
The Journal of endocrinology |
Abbreviated Journal |
J Endocrinol |
Volume |
72 |
Issue |
2 |
Pages |
237-238 |
Keywords |
Androgens/*blood; Animals; Horses/*blood; Male; *Seasons; Testosterone/*blood |
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English |
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ISSN |
0022-0795 |
ISBN |
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Notes |
PMID:845536 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
148 |
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Author |
Barros, A.T. |
Title |
Seasonality and relative abundance of Tabanidae (Diptera) captured on horses in the Pantanal, Brazil |
Type |
Journal Article |
Year |
2001 |
Publication |
Memorias do Instituto Oswaldo Cruz |
Abbreviated Journal |
Mem Inst Oswaldo Cruz |
Volume |
96 |
Issue |
7 |
Pages |
917-923 |
Keywords |
Animals; Brazil; Climate; Diptera/classification/*physiology; Ecology; Horses/*parasitology; Population Dynamics; Seasons; Species Specificity |
Abstract |
Once a month, from June 1992 to May 1993, collections of tabanids on horse were conducted in the Nhecolandia, Pantanal State of Mato Grosso do Sul, Brazil. Tabanid catches using hand nets were conducted from sunrise to sunset at grassland and cerradao (dense savanna) habitats. A total of 3,442 tabanids from 21 species,12 genera, and 3 subfamilies were collected. Although species abundance varied seasonally depending on habitat, no habitat specificity was observed for the most abundant species. In the grassland, 1,625 (47.2%) tabanids belonging to 19 species were collected, while 1,817 (52.8%) tabanids from 17 species were caught in the cerradao. The number of tabanid species varied from 7 during winter (July/August) to 15 in the spring (October). Tabanus importunus (56%) was the most abundant species, followed by T. occidentalis (8.2%), and T. claripennis (8.1%). The tabanid peak, in October, coincided with the beginning of the rainy season. The population peak of most species, including those with higher vector potential, suggests that the rainy season can be considered as the period of potentially higher risk of mechanical transmission of pathogens by tabanids to horses in the region. |
Address |
Embrapa Pantanal, 79320-900 Corumba, MS, Brasil. thadeu@cpap.embrapa.br |
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English |
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Edition |
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ISSN |
0074-0276 |
ISBN |
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Notes |
PMID:11685255 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2644 |
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Author |
Zeeb, K. |
Title |
[Possibilities for the all-year free-range raising of horses] |
Type |
Journal Article |
Year |
1994 |
Publication |
DTW. Deutsche Tierarztliche Wochenschrift |
Abbreviated Journal |
Dtsch Tierarztl Wochenschr |
Volume |
101 |
Issue |
3 |
Pages |
122-123 |
Keywords |
Animal Feed; *Animal Husbandry; Animal Welfare; Animals; Germany; Horses/*physiology; Housing, Animal; Seasons; Weather |
Abstract |
The ethological concept concerning supply of needs an avoidance of damage is mentioned as a possibility for the evaluation of welfare aspects related to animal management. The 250 Dulmen horses kept on 300 ha by the Duke of Croy show what must be provided for horse-keeping in a semi-natural environment: Sufficient food and water, efficient shelter as well as adequate structures for the needs of horses concerning social and comfort behaviour. A catalogue of factors, functions and facilities for this kind of horse-keeping is presented. |
Address |
Tierhygienischen Institut, Freiburg, Breisgau |
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German |
Summary Language |
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Original Title |
Moglichkeiten der ganzjahrigen Freilandhaltung von Pferden |
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Edition |
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ISSN |
0341-6593 |
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Notes |
PMID:8205954 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
1941 |
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