Records |
Author |
Judge, P.G.; de Waal, F.B. |
Title |
Intergroup grooming relations between alpha females in a population of free-ranging rhesus macaques |
Type |
Journal Article |
Year |
1994 |
Publication |
Folia primatologica; international journal of primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
Volume |
63 |
Issue |
2 |
Pages |
63-70 |
Keywords ![sorted by Keywords field, ascending order (up)](img/sort_asc.gif) |
Animals; Animals, Wild; Female; *Grooming; Macaca mulatta/*psychology; Male; Population Density; *Social Behavior |
Abstract |
Intergroup affiliation among female rhesus macaques, Macaca mulatta, was examined in the captive free-ranging colony of Morgan Island, S.C., USA. The provisioned colony has many social groups (35) and is maintained at a relatively high population density (21 animals/ha) with a relatively low adult male to female ratio (1:8.8). Focal and ad libitum samples were collected on 32 adults (3 males and 29 females) from two groups. Although infrequent, grooming was observed between adult females from different groups, and alpha females were the main participants in these interactions. Colony records indicated that none of the intergroup grooms was between females formerly from a common group. Relations between familiar neighboring groups may be maintained by a combination of both affiliative and aggressive behavior. |
Address |
Yerkes Regional Primate Research Center, Lawrenceville, Ga 30243 |
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English |
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Edition |
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ISSN |
0015-5713 |
ISBN |
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Notes |
PMID:7813977 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
208 |
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Author |
Zentall, T.R.; Sherburne, L.M. |
Title |
Role of differential sample responding in the differential outcomes effect involving delayed matching by pigeons |
Type |
Journal Article |
Year |
1994 |
Publication |
Journal of experimental psychology. Animal behavior processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
20 |
Issue |
4 |
Pages |
390-401 |
Keywords ![sorted by Keywords field, ascending order (up)](img/sort_asc.gif) |
Animals; Behavior, Animal; Choice Behavior; *Columbidae; *Discrimination Learning; Feeding Behavior; Task Performance and Analysis |
Abstract |
The role of differential sample responding in the differential outcomes effect was examined. In Experiment 1, we trained pigeons on a one-to-many matching task with differential sample responding required. Differential outcomes were associated with samples and comparisons, with comparisons only, or with neither samples nor comparisons. Slopes of delay functions for trials with pecked versus nonpecked samples suggested use of a single-code-default strategy in the nondifferential-outcomes group but not in the differential-outcomes groups. In Experiment 2, differential sample responding and differential outcomes were manipulated independently. Again, there were significant differences in the relative slopes of the delay functions. Results suggest that differential outcomes exert their effect independently of differential sample responding. |
Address |
Department of Psychology, University of Kentucky, Lexington 40506 |
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English |
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ISSN |
0097-7403 |
ISBN |
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Notes |
PMID:7964521 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
257 |
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Author |
Andrews, F.M.; Ralston, S.L.; Sommardahl, C.S.; Maykuth, P.L.; Green, E.M.; White, S.L.; Williamson, L.H.; Holmes, C.A.; Geiser, D.R. |
Title |
Weight, water, and cation losses in horses competing in a three-day event |
Type |
Journal Article |
Year |
1994 |
Publication |
Journal of the American Veterinary Medical Association |
Abbreviated Journal |
J Am Vet Med Assoc |
Volume |
205 |
Issue |
5 |
Pages |
721-724 |
Keywords ![sorted by Keywords field, ascending order (up)](img/sort_asc.gif) |
Animals; Body Water/*metabolism; Body Weight/*physiology; Exertion/*physiology; Female; Horses/blood/*metabolism; Male; Physical Conditioning, Animal/physiology; Physical Endurance/physiology; Potassium/*blood; Sodium/*blood |
Abstract |
Body weight of 48 horses competing in a 3-day event was measured the day before the event (baseline), following the dressage phase of the event (day 1), after the endurance phases of the event (day 2), and 18 to 24 hours after the endurance phases (day 3). Plasma sodium and potassium concentrations were measured the evening before, immediately after, and 10 minutes after the endurance phases. Total body water, water loss, and net exchangeable cation loss were then calculated. Body weight and total body water were significantly decreased, compared with baseline values, at all times during the event, and significant water loss was detected. The largest changes were recorded after the endurance phases of the event. Water deficits were still detected 18 to 24 hours after the endurance phases of the event. Mean plasma sodium concentration was significantly increased immediately after the endurance phases of the event, compared with concentration measured the evening before, and remained increased after the 10-minute recovery period, presumably because of dehydration. Mean plasma potassium concentration was significantly increased immediately after the endurance phases of the event, compared with concentration measured the evening before, but was not increased after the 10-minute recovery period. |
Address |
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville 37901-1071 |
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English |
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ISSN |
0003-1488 |
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Notes |
PMID:7989242 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3745 |
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Author |
Gothe, R. |
Title |
[Tapeworms, a problem in equine practice?] |
Type |
Journal Article |
Year |
1994 |
Publication |
Tierarztliche Praxis |
Abbreviated Journal |
Tierarztl Prax |
Volume |
22 |
Issue |
5 |
Pages |
466-470 |
Keywords ![sorted by Keywords field, ascending order (up)](img/sort_asc.gif) |
Animals; Cestode Infections/diagnosis/parasitology/therapy/*veterinary; *Horse Diseases/diagnosis/parasitology/therapy; Horses |
Abstract |
This paper gives a survey on biology and ecology of equine tapeworms as well as on pathogenesis, clinics, diagnosis, therapy, and prophylaxis of tapeworm infections. |
Address |
Institut fur Vergleichende Tropenmedizin und Parasitologie, Ludwig-Maximilians-Universitat Munchen |
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Language |
German |
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Original Title |
Bandwurmer, ein Problem in der Pferdepraxis? |
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ISSN |
0303-6286 |
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Notes |
PMID:7855855 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2663 |
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Author |
Chiba, K.; Ikai, A.; Kawamura-Konishi, Y.; Kihara, H. |
Title |
Kinetic study on myoglobin refolding monitored by five optical probe stopped-flow methods |
Type |
Journal Article |
Year |
1994 |
Publication |
Proteins |
Abbreviated Journal |
Proteins |
Volume |
19 |
Issue |
2 |
Pages |
110-119 |
Keywords ![sorted by Keywords field, ascending order (up)](img/sort_asc.gif) |
Animals; Chromatography, Gel; Circular Dichroism; Horses; Kinetics; Metmyoglobin/analogs & derivatives/chemistry; Myoglobin/*chemistry; *Protein Folding; Spectrometry, Fluorescence; Spectrophotometry, Ultraviolet; Urea |
Abstract |
The refolding kinetics of horse cyanometmyoglobin induced by concentration jump of urea was investigated by five optical probe stopped-flow methods: absorption at 422 nm, tryptophyl fluorescence at around 340 nm, circular dichroism (CD) at 222 nm, CD at 260 nm, and CD at 422 nm. In the refolding process, we detected three phases with rate constants of > 1 x 10(2) s-1, (4.5-9.3) s-1, and (2-5) x 10(-3) s-1. In the fastest phase, a substantial amount of secondary structure (approximately 40%) is formed within the dead time of the CD stopped-flow apparatus (10.7 ms). The kinetic intermediate populated in the fastest phase is shown to capture a hemindicyanide, suggesting that a “heme pocket precursor” recognized by hemindicyanide must be constructed within the dead time. In the middle phase, most of secondary and tertiary structures, especially around the captured hemindicyanide, have been constructed. In the slowest phase, we detected a minor structural rearrangement accompanying the ligand-exchange reaction in the fifth coordination of ferric iron. We present a possible model for the refolding process of myoglobin in the presence of the heme group. |
Address |
Laboratory of Biodynamics, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, Kanagawa, Japan |
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English |
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ISSN |
0887-3585 |
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Notes |
PMID:8090705 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3799 |
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Author |
McComb, K.; Clutton-Brock, T. |
Title |
Is mate choice copying or aggregation responsible for skewed distributions of females on leks? |
Type |
Journal Article |
Year |
1994 |
Publication |
Proceedings. Biological sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
Volume |
255 |
Issue |
1342 |
Pages |
13-19 |
Keywords ![sorted by Keywords field, ascending order (up)](img/sort_asc.gif) |
Animals; Deer/*physiology; Estrus/physiology; Female; Male; Phenotype; Sexual Behavior, Animal/*physiology; Territoriality |
Abstract |
In several lek-breeding populations of birds and mammals, females arriving on leks tend to join males that already have females in their territories. This might occur either because females have an evolved preference for mating with males that are attractive to other females, or because they join groups of other females to obtain greater safety from predation or dangerous harassment by males. We have previously used controlled experiments to show that oestrous fallow deer females join males with established harems because they are attracted to female groups rather than to the males themselves. Here we demonstrate that the preference for males with females over males without females is specific to oestrous females and weak or absent in anoestrous ones, and that it is not associated with a preference for mating with males that have previously been seen to mate with other females. Furthermore, oestrous females given the choice between males that do not already have females with them show no significant preference for antlered over deantlered males or for older males over younger ones. We conclude that female attraction to other females on the lek is likely to be an adaptation to avoiding harassment in mixed-sex herds. In this situation, a male's ability to maintain the cohesion of his harem may be the principal cause of variation in mating success between males. |
Address |
Department of Zoology, University of Cambridge, U.K |
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English |
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ISSN |
0962-8452 |
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Notes |
PMID:8153135 |
Approved |
no |
Call Number |
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Serial |
1823 |
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Author |
Breen, M.; Downs, P.; Irvin, Z.; Bell, K. |
Title |
Intrageneric amplification of horse microsatellite markers with emphasis on the Przewalski's horse (E. przewalskii) |
Type |
Journal Article |
Year |
1994 |
Publication |
Animal Genetics |
Abbreviated Journal |
Anim Genet |
Volume |
25 |
Issue |
6 |
Pages |
401-405 |
Keywords ![sorted by Keywords field, ascending order (up)](img/sort_asc.gif) |
Animals; DNA, Satellite/*genetics; *Gene Amplification; Gene Frequency; *Genetic Markers; Heterozygote; Horses/*genetics; Species Specificity |
Abstract |
Primer sequences flanking 13 microsatellite loci isolated from the domestic horse (E. caballus) were successfully used to amplify homologous loci in the Przewalski's horse (E. przewalskii). The results demonstrate that the level of polymorphism at all 13 loci in the Przewalski's horse was comparable to that in the domestic horse and the overall exclusion probability in the Przewalski's horse was calculated to be 0.9994. The results suggest that it should be possible to use E. caballus-derived microsatellite markers to provide parentage verification and additional valuable information to the captive management of E. przewalskii. The ability to amplify corresponding loci in the remaining five species of the genus was also confirmed, illustrating the general application of markers isolated from the domestic horse to the evaluation of polymorphism in the other six species of the genus. |
Address |
Australian Equine Blood Typing Research Laboratory, University of Queensland, St Lucia |
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English |
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ISSN |
0268-9146 |
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Notes |
PMID:7695120 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2246 |
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Author |
Aviad, A.D.; Houpt, J.B. |
Title |
The molecular weight of therapeutic hyaluronan (sodium hyaluronate): how significant is it? |
Type |
Journal Article |
Year |
1994 |
Publication |
The Journal of rheumatology |
Abbreviated Journal |
J Rheumatol |
Volume |
21 |
Issue |
2 |
Pages |
297-301 |
Keywords ![sorted by Keywords field, ascending order (up)](img/sort_asc.gif) |
Animals; Horse Diseases/drug therapy; Horses; Humans; Hyaluronic Acid/*chemistry/*therapeutic use; Joint Diseases/*drug therapy/veterinary; Molecular Weight; Osteoarthritis/drug therapy/veterinary; Synovial Fluid/drug effects/physiology; Viscosity |
Abstract |
Various molecular weight hyaluronic acid (HA) preparations have been injected into joints for the treatment of human and equine osteoarthritis. A therapeutic advantage has been claimed for commercial products with a molecular weight in the range found in normal synovial fluid (SF), compared to lower molecular weight products. But a correlation between molecular weight and efficacy is not borne out by an analysis of the available literature on clinical results. SF viscosity, HA concentration, HA molecular weight and rate of synthesis in joint disease. It is proposed that the beneficial effect of injected HA in joint disease may be due to pharmacological rather than to physical properties. |
Address |
Rheumatic Disease Unit, Mount Sinai Hospital, University of Toronto, ON, Canada |
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English |
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ISSN |
0315-162X |
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Notes |
PMID:8182640 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
35 |
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Author |
Barber, J.A.; Crowell-Davis, S.L. |
Title |
Maternal behavior of Belgian (Equus caballus) mares |
Type |
Journal Article |
Year |
1994 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
41 |
Issue |
3-4 |
Pages |
161-189 |
Keywords ![sorted by Keywords field, ascending order (up)](img/sort_asc.gif) |
Belgian; Draft horse; Ontogeny; Maternal aggression; Maternal behavior; Nursing behavior; Recumbency response |
Abstract |
The relationship between ten Belgian mares and their offspring was studied from the first day of foal life to 17 weeks of age. Mares and foals spent more time at greater distances from each other as foals matured. Mares exhibited the recumbency response, being in closer proximity to their foals when foals were recumbent than when they were upright. Foals initiated the majority of nursing bouts. Frequency and duration of nursing bouts and percentage of time resting recumbently declined as foals matured. Foals also terminated the their foals, and they were most likely to do so in the first month of foal life. Maternal initiation of nursing. There was usually no discernible foal response to maternal aggression. Little difference between maternal behavior directed towards colts and fillies was found for all aspects of the study. Maternal behavior in the Belgian draft horse was similar to that reported for other equid breeds. |
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Equine Behaviour @ team @ |
Serial |
2268 |
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Author |
Wasserman, S.; Faust, K. |
Title |
Social Network Analysis : Methods and Applications |
Type |
Book Whole |
Year |
1994 |
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Cambridge University Press |
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Cambridge |
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Equine Behaviour @ team @ Wasserman1994 |
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5150 |
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