Records |
Author |
Enileeva, N.K. |
Title |
[Ecological characteristics of horse stomach botflies in Uzbekistan] |
Type |
Journal Article |
Year |
1987 |
Publication |
Parazitologiia |
Abbreviated Journal |
Parazitologiia |
Volume |
21 |
Issue |
4 |
Pages |
577-579 |
Keywords |
Animals; Diptera/*physiology; Ecology; Female; Flight, Animal; Horses/*parasitology; Larva/physiology; Male; Population Dynamics; Uzbekistan |
Abstract |
The paper describes the flight periods and dynamics of abundance of horse botflies, life span of females and males, effect of environmental factors on the activity of flies and their behaviour, potential fecundity of different species of botflies, duration of embryonal development, preservation of viability of larvae in egg membranes, localization of different stages of botflies in the host, and methods of their control. |
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Place of Publication |
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Language |
Russian |
Summary Language |
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Original Title |
Ekologicheskie osobennosti zheludochnykh ovodov loshadei v Uzbekistane |
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Edition |
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ISSN |
0031-1847 |
ISBN |
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Expedition |
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Conference |
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Notes |
PMID:2958767 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2680 |
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Author |
Sukhomlinov, B.F.; Korobov, V.N.; Gonchar, M.V.; Datsiuk, L.A.; Korzhev, V.A. |
Title |
[Comparative analysis of the peroxidase activity of myoglobins in mammals] |
Type |
Journal Article |
Year |
1987 |
Publication |
Zhurnal Evoliutsionnoi Biokhimii i Fiziologii |
Abbreviated Journal |
Zh Evol Biokhim Fiziol |
Volume |
23 |
Issue |
1 |
Pages |
37-41 |
Keywords |
Amino Acid Sequence; Animals; Ecology; *Evolution; Kinetics; Mammals/*metabolism; Myoglobin/*metabolism; Peroxidases/*metabolism |
Abstract |
Studies have been made on the peroxidase activity of metmyoglobins in animals from various ecological groups--the horse Equus caballus, cattle Bos taurus, beaver Castor fiber, otter Lutra lutra, mink Mustela vison and dog Canis familiaris. It was found that the level of this activity in diving animals depends on the duration of their diving, whereas in terrestrial species--on the strength of muscular contraction. |
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Editor |
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Language |
Russian |
Summary Language |
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Original Title |
Sravnitel'nyi analiz peroksidaznoi aktivnosti mioglobinov u mlekopitaiushchikh |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0044-4529 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
PMID:3564776 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2681 |
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Author |
Rumbaugh, D.M.; Savage-Rumbaugh, S.; Hegel, M.T. |
Title |
Summation in the chimpanzee (Pan troglodytes) |
Type |
Journal Article |
Year |
1987 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
13 |
Issue |
2 |
Pages |
107-115 |
Keywords |
Animals; Choice Behavior; *Cognition; Male; *Mathematics; *Pan troglodytes; Visual Perception |
Abstract |
In this research, we asked whether 2 chimpanzee (Pan troglodytes) subjects could reliably sum across pairs of quantities to select the greater total. Subjects were allowed to choose between two trays of chocolates. Each tray contained two food wells. To select the tray containing the greater number of chocolates, it was necessary to sum the contents of the food wells on each tray. In experiments where food wells contained from zero to four chocolates, the chimpanzees chose the greater value of the summed wells on more than 90% of the trials. In the final experiment, the maximum number of chocolates assigned to a food well was increased to five. Choice of the tray containing the greater sum still remained above 90%. In all experiments, subjects reliably chose the greater sum, even though on many trials a food well on the “incorrect” tray held more chocolates than either single well on the “correct” tray. It was concluded that without any known ability to count, these chimpanzees used some process of summation to combine spatially separated quantities. Speculation regarding the basis for summation includes consideration of perceptual fusion of pairs of quantities and subitization. |
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English |
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Edition |
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ISSN |
0097-7403 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
PMID:3572305 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2785 |
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Author |
Lisa Nash, H.; Song, G.K.; Price, E.O. |
Title |
Head partitions facilitate feeding by subordinate horses in the presence of dominant pen-mates |
Type |
Journal Article |
Year |
1987 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
19 |
Issue |
1-2 |
Pages |
179-182 |
Keywords |
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Abstract |
The purpose of the following study was to determine if head partitions would facilitate feeding by subordinate horses in the presence of dominant pen-mates. Six pairs of mares, each with established dominant-subordinate relationships, were allowed to compete for feed in a 112-cm trough following 24 h of deprivation. Time spent feeding by each mare in each pair was recorded with a wire-mesh partition, a solid plywood partition or no partition dividing the trough. Differences in feeding times between dominant and subordinate mares were greatest in the absence of a partition and least (P<0.05) with the wire barrier in place. Differences in feeding times with the solid plywood barrier were not significantly different from either of the other treatment conditions. It was concluded that head partitions on a trough facilitate feeding by subordinate horses in the presence of dominant pen-mates and thus provide a more equitable distribution of food resources. |
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Series Issue |
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Edition |
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ISSN |
0168-1591 |
ISBN |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
5411 |
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Author |
Pusey, A.E. |
Title |
Sex-biased dispersal and inbreeding avoidance in birds and mammals |
Type |
Journal Article |
Year |
1987 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol |
Volume |
2 |
Issue |
10 |
Pages |
295-299 |
Keywords |
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Abstract |
Sex differences in dispersal distance are widespread in birds and mammals, but the predominantly dispersing sex differs consistently between the classes. There has been persistent debate over the relative importance of two factors -- intrasexual competition and inbreeding avoidance -- in producing sex-biased dispersal, and over the sources of the difference in dispersal patterns between the two classes. Recent studies cast new light on these questions. |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0169-5347 |
ISBN |
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Medium |
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Notes |
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Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
5326 |
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Author |
Rutberg, A.T. |
Title |
Horse Fly Harassment and the Social Behavior of Feral Ponies |
Type |
Journal Article |
Year |
1987 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
Volume |
75 |
Issue |
2 |
Pages |
145-154 |
Keywords |
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Abstract |
Abstract Horse flies (Tabanidae) on and around feral ponies in harem groups were counted at Assateague Island National Seashore, Maryland, U.S.A., between June and August 1985. Harem stallions attracted the most flies; adult mares showed intermediate fly numbers, while few flies landed on foals under any circumstances. The use of thermal and chemical cues by flies selecting a host may have helped create this disparity. When flies were abundant, ponies reduced spacing within the group. Ponies in larger groups suffered from fewer flies than ponies in smaller groups. There was, however, no evidence that ponies merged into larger groups in response to fly harassment, suggesting that biting flies play little role in structuring pony social organization. |
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Thesis |
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Publisher |
Wiley/Blackwell (10.1111) |
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Series Issue |
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Edition |
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ISSN |
0179-1613 |
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Notes |
doi: 10.1111/j.1439-0310.1987.tb00648.x |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6417 |
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Author |
Satorov, S.S.; Orzuev, M.I. |
Title |
[Frequency of the isolation of staphylococci from domestic animals and strain identification] |
Type |
Journal Article |
Year |
1987 |
Publication |
Zhurnal Mikrobiologii, Epidemiologii, i Immunobiologii |
Abbreviated Journal |
Zh Mikrobiol Epidemiol Immunobiol |
Volume |
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Issue |
12 |
Pages |
37-39 |
Keywords |
Animals; Animals, Domestic/*microbiology; Bacteriophage Typing; Carrier State/microbiology/veterinary; Cats; Ecology; Goats; Horses; Perissodactyla; Sheep; Staphylococcal Infections/microbiology/veterinary; Staphylococcus/classification/*isolation & purification |
Abstract |
Staphylococci occur in donkeys more frequently than in other animals, and only from donkeys coagulase-negative staphylococci, characteristic of humans (S. hominis, S. capitis, S. cohnii), were isolated. Least frequently staphylococcal carrier state was registered in cats; in these animals only coagulase-negative strains were found to occur. From 30 donkeys coagulase-positive staphylococci belonging to 47 S. aureus strains were isolated. These strains differed from known ecological variants in their biological properties, thus suggesting the existence of S. aureus ecovar specific for donkeys. These strains did not coagulate human, bovine and ovine plasma, but coagulated rabbit plasma in 100% of cases and donkey plasma only in 53% of cases; at the same time they relatively often produced delta hemolysin, rarely phosphatase and hyaluronidase and never fibrinolysin. These strains were typed by KPC phages, mainly 116 and 117. |
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Corporate Author |
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Place of Publication |
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Editor |
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Language |
Russian |
Summary Language |
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Original Title |
Chastota vydeleniia stafilokokkov u domashnykh zhivotnykh i identifikatsiia shtammov |
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Edition |
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ISSN |
0372-9311 |
ISBN |
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Notes |
PMID:3445728 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2676 |
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Author |
Hughes, K.L.; Sulaiman, I. |
Title |
The ecology of Rhodococcus equi and physicochemical influences on growth |
Type |
Journal Article |
Year |
1987 |
Publication |
Veterinary Microbiology |
Abbreviated Journal |
Vet Microbiol |
Volume |
14 |
Issue |
3 |
Pages |
241-250 |
Keywords |
Animals; Feces/microbiology; Horses; Hydrogen-Ion Concentration; Rhodococcus/*growth & development; *Soil Microbiology; Temperature |
Abstract |
Growth of Rhodococcus equi was studied in vitro. Optimal growth occurred under aerobic conditions between pH 7.0 and 8.5, at 30 degrees C. R. equi survived better in a neutral soil (pH 7.3) than it did in two acid soils (pH less than 5.5). It grew substantially better in soils enriched with faeces than in soils alone. Simple organic acids in horse dung, especially acetate and propionate, appear to be important in supporting growth of R. equi in the environment. The ecology of R. equi can be best explained by an environmental cycle allowing its proliferation in dung, influenced by management, grazing behaviour and prevailing climatic conditions. Preventive measures should be aimed at reducing or avoiding focal areas of faecal contamination in the environment. |
Address |
School of Veterinary Science, University of Melbourne, Parkville, Vic., Australia |
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English |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0378-1135 |
ISBN |
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Medium |
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Conference |
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Notes |
PMID:3672866 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2678 |
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Author |
Takai, S.; Fujimori, T.; Katsuzaki, K.; Tsubaki, S. |
Title |
Ecology of Rhodococcus equi in horses and their environment on horse-breeding farms |
Type |
Journal Article |
Year |
1987 |
Publication |
Veterinary Microbiology |
Abbreviated Journal |
Vet Microbiol |
Volume |
14 |
Issue |
3 |
Pages |
233-239 |
Keywords |
Actinomycetales Infections/*veterinary; Animals; Animals, Newborn/*microbiology; *Environmental Microbiology; Feces/microbiology; Female; Horse Diseases/*microbiology; Horses/*microbiology; Rhodococcus/*isolation & purification |
Abstract |
Quantitative culture of R. equi in the feces of dams and foals, in the air of the stalls and in the soil of the paddocks was carried out on three horse-breeding farms during the foaling season. The isolation rates of R. equi from the feces of dams from the 3 farms suddenly increased to approximately 80% at the end of March, when the snow in the paddocks finished melting, and remained at that level during April and May. The mean number of R. equi and the isolation rate of R. equi from the feces of dams on the farms were investigated for 5 weeks before and 5 weeks after delivery. During the 10 weeks, there were no differences in the isolation rate or in the mean number of R. equi from the feces of dams. R. equi was first isolated from the feces of the foals born in February and the middle of March at 3-4 weeks of age, on the other hand, it was first isolated from the feces of foals born in the end of March and April at 1-2 weeks of age. The number of R. equi in the soil collected from the paddocks used by dams during the winter was approximately 10(2)-10(4) g-1 of soil during the experiment. R. equi was isolated from the air in the stalls at the end of March and the number of R. equi in the air increased particularly on dry and windy days.(ABSTRACT TRUNCATED AT 250 WORDS) |
Address |
Department of Animal Hygiene, School of Veterinary Medicine and Animal Science, Kitasato University, Aomori, Japan |
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English |
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Edition |
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ISSN |
0378-1135 |
ISBN |
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Medium |
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Conference |
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Notes |
PMID:3672865 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2679 |
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Author |
Tomasello, M.; Davis-Dasilva, M.; Camak, L.; Bard, K. |
Title |
Observational learning of tool-use by young chimpanzees |
Type |
Journal Article |
Year |
1987 |
Publication |
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Abbreviated Journal |
Human Evolution |
Volume |
2 |
Issue |
2 |
Pages |
175-183 |
Keywords |
Chimpanzees; Observational Learning; Tool-Use |
Abstract |
In the current study two groups of young chimpanzees (4–6 and 8–9 years old) were given a T-bar and a food item that could only be reached by using the T-bar. Experimental subjects were given the opportunity to observe an adult using the stick as a tool to obtain the food; control subjects were exposed to the adult but were given no demonstration. Subjects in the older group did not learn to use the tool. Subjects in the younger group who were exposed to the demonstrator learned to use the stick as a tool much more readily than those who were not. None of the subjects demonstrated an ability to imitatively copy the demonstrator's precise behavioral strategies. More than simple stimulus enhancement was involved, however, since both groups manipulated the T-bar, but only experimental subjects used it in its function as a tool. Our findings complement naturalistic observations in suggesting that chimpanzee tool-use is in some sense «culturally transmitted» — though perhaps not in the same sense as social-conventional behaviors for which precise copying of conspecifics is crucial. |
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Kluwer Academic Publishers |
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English |
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Edition |
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ISSN |
0393-9375 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
5915 |
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