Records |
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 |
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PMID:3988655 |
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no |
Call Number |
refbase @ user @ |
Serial |
54 |
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Author |
Turner, J.W.J.; Kirkpatrick, J.F. |
Title |
Androgens, behaviour and fertility control in feral stallions |
Type |
Journal Article |
Year |
1982 |
Publication |
Journal of reproduction and fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
Volume |
32 |
Issue |
|
Pages |
79-87 |
Keywords |
Animals; Animals, Wild; Copulation/drug effects; Female; *Fertility/drug effects; Horses/*physiology; Male; Periodicity; Pregnancy; Seasons; *Sexual Behavior, Animal/drug effects; Sexual Maturation; Sperm Count; Sperm Motility/drug effects; Testosterone/*blood/pharmacology |
Abstract |
This field study of feral stallions in Montana and Idaho examines and correlates the seasonal pattern of plasma androgens and specific sociosexual behaviour and reports the effect of a long-acting androgenic steroid on this behaviour and on fertility. Plasma testosterone was measured by competitive protein binding assay in samples obtained by jugular venepuncture from captured animals. In samples taken from 34 sexually mature stallions in 6 different months during the year, a definite seasonal pattern in testosterone was present, with a peak in May (3.04 +/- 0.63 ng/ml) and a nadir in December (1.55 +/- 0.34 ng/ml). Values were less than 2.0 ng/ml in non-breeding months and greater than 2.4 ng/ml in breeding months. Behavioural endpoints measured were (1) stallion scent marking in response to elimination by mares (elimination marking), (2) mounting and (3) copulation. The frequencies of each of these endpoints followed closely the seasonal pattern seen for plasma androgens. In the fertility study microcapsulated testosterone propionate (microTP) was administered i.m. to 10 harem stud stallions 3 months before the 1980 breeding season. In these stallions and in 10 control harem studs, the above behavioural endpoints were examined in the 1980 and 1981 breeding seasons, and foal counts were made in 1981. There were no direct inhibitory or stimulatory effects of microTP treatment on any of the behavioural endpoints in either year. In 1981 foals were produced in 87.5% of the control bands and 28.4% of the microTP-treated bands. These results indicate that microencapsulated testosterone propionate can provide effective fertility control in feral horses without causing significant alterations in sociosexual behaviour. |
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ISSN |
0449-3087 |
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Notes |
PMID:6962905 |
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no |
Call Number |
refbase @ user @ |
Serial |
138 |
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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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ISSN |
0022-0795 |
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Notes |
PMID:845536 |
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no |
Call Number |
refbase @ user @ |
Serial |
148 |
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Author |
Dyer, F.C. |
Title |
Animal behaviour: when it pays to waggle |
Type |
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Year |
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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English |
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ISSN |
0028-0836 |
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Notes |
PMID:12410290 |
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no |
Call Number |
refbase @ user @ |
Serial |
769 |
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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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Edition |
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ISSN |
0002-9645 |
ISBN |
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Medium |
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Conference |
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Notes |
PMID:3752676 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2682 |
Permanent link to this record |
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Author |
Ribeiro, H.S.; Larangeira, N.L.; Paiva, F. |
Title |
[Prevalence of Dictyocaulus arnfieldi (Cobbald, 1884) Railiet & Henry 1907, in Pantaneira breed horses of the region of Pocone, MT] |
Type |
Journal Article |
Year |
1979 |
Publication |
Arquivos do Instituto Biologico |
Abbreviated Journal |
Arq Inst Biol (Sao Paulo) |
Volume |
46 |
Issue |
3-4 |
Pages |
107-110 |
Keywords |
Animals; Brazil; Dictyocaulus/*isolation & purification; Ecology; Female; Horses/*parasitology; Male; Metastrongyloidea/*isolation & purification; Seasons |
Abstract |
The authors sacrificed fifty-five horses originated from the “Pantanal”, lowlands in the State of Mato Grosso in two different periods, droughty period and flooded and they described for the first time the Dictyocaulus arnfieldi in Mato Grosso. Relationship between droughty and flooded periods proved not to occur. |
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Portuguese |
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Original Title |
Prevalencia de Dictyocaulus arnfieldi (Cobbald, 1884) Railiet & Henry 1907, em cavalos de raca pantaneira da regiao de Pocone, MT |
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ISSN |
0020-3653 |
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Notes |
PMID:554599 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2693 |
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Author |
Iwuala, M.O.; Okpala, I. |
Title |
Studies on the ectoparasitic fauna of Nigerian livestock II: Seasonal infestation rates |
Type |
Journal Article |
Year |
1978 |
Publication |
Bulletin of Animal Health and Production in Africa. Bulletin des Sante et Production Animales en Afrique |
Abbreviated Journal |
Bull Anim Health Prod Afr |
Volume |
26 |
Issue |
4 |
Pages |
351-359 |
Keywords |
Animal Diseases/*epidemiology; Animals; Cattle; Dogs; Ecology; Ectoparasitic Infestations/epidemiology/*veterinary; Goats; Horses; Nigeria; Seasons; Sheep; Swine |
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English |
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ISSN |
0378-9721 |
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Notes |
PMID:756759 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2695 |
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Author |
Mirzaeva, A.G. |
Title |
[Age makeup of female Culicoides sinanoensis Tok. in the coniferous-broad-leaved forest zone of the southern Maritime Territory] |
Type |
Journal Article |
Year |
1974 |
Publication |
Parazitologiia |
Abbreviated Journal |
Parazitologiia |
Volume |
8 |
Issue |
6 |
Pages |
524-530 |
Keywords |
Age Factors; Animals; *Ceratopogonidae/physiology; Corpus Luteum/physiology; Ecology; Female; Horses/parasitology; Humans; Ovulation; Pigments, Biological/physiology; Seasons; Siberia; Trees |
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Russian |
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Original Title |
Vozrastnoi sostav samok Culicoides sinanoensis Tok. v zone khvoino-shirokolistvennykh lesov Iuzhnogo Primor'ia |
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0031-1847 |
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Notes |
PMID:4449654 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2707 |
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Author |
Clark, G.G.; Hibler, C.P. |
Title |
Horse flies and Elaeophora schneideri in the Gila National Forest, New Mexico |
Type |
Journal Article |
Year |
1973 |
Publication |
Journal of Wildlife Diseases |
Abbreviated Journal |
J Wildl Dis |
Volume |
9 |
Issue |
1 |
Pages |
21-25 |
Keywords |
Animals; *Diptera; Ecology; *Filarioidea; Geography; Insect Vectors; Larva; New Mexico; Seasons |
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ISSN |
0090-3558 |
ISBN |
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Notes |
PMID:4694585 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2714 |
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Author |
Chmel, L.; Hasilikova, A.; Hrasko, J.; Vlacilikova, A. |
Title |
The influence of some ecological factors on keratinophilic fungi in the soil |
Type |
Journal Article |
Year |
1972 |
Publication |
Sabouraudia |
Abbreviated Journal |
Sabouraudia |
Volume |
10 |
Issue |
1 |
Pages |
26-34 |
Keywords |
Animals; Arthrodermataceae/growth & development/isolation & purification/metabolism; Carbohydrates; Czechoslovakia; Ecology; Fungi/growth & development/*isolation & purification/metabolism; Hair; Horses; Humic Substances; Humidity; Keratins/metabolism; Microsporum/isolation & purification; Mitosporic Fungi/isolation & purification; Phosphates; Seasons; Soil; *Soil Microbiology; Species Specificity; Temperature; Trichophyton/isolation & purification |
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English |
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Series Editor |
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Series Issue |
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Edition |
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ISSN |
0036-2174 |
ISBN |
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Notes |
PMID:5063162 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2719 |
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