Records |
Author |
Villani, M.; Cairoli, F.; Kindahl, H.; Galeati, G.; Faustini, M.; Carluccio, A.; Veronesi, M.C. |
Title |
Effects of mating on plasma concentrations of testosterone, cortisol, oestrone sulphate and 15-ketodihydro-PGF2alpha in stallions |
Type |
Journal Article |
Year |
2006 |
Publication |
Reproduction in Domestic Animals = Zuchthygiene |
Abbreviated Journal |
Reprod Domest Anim |
Volume |
41 |
Issue |
6 |
Pages |
544-548 |
Keywords |
Animals; Dinoprost/*analogs & derivatives/blood; Ejaculation/physiology; Estrone/*analogs & derivatives/blood; Horses/*blood/physiology; Hydrocortisone/*blood; Male; Sexual Behavior, Animal/*physiology; Testosterone/*blood |
Abstract |
Very little information is available regarding the physiological mechanisms involved in the normal sexual activity in the stallion and, in particular, the endocrine control of reproduction is still not clearly understood. This experiment was designed to determine the short-term effect of sexual stimulation on plasma concentrations of testosterone, cortisol, oestrone sulphate and 15-ketodihydro-PGF(2alpha) in stallions. Semen samples were collected from 10 lighthorse stallions of proven fertility using a Missouri model artificial vagina. At the same time, blood samples were collected from the jugular vein with heparinized tubes, 20 and 10 min before oestrous mare exposure, at exposure and 10, 20, 30 min after dismounting. Testosterone concentrations showed a sharp rise 10 min after mating (p < 0.001), reached a plateau, and then showed a further increase 30 min after mating (p < 0.001). Cortisol concentrations increased 10 min after mating (p < 0.001) and remained at high levels in the subsequent samples taken. A peak of oestrone sulphate was observed 10 min after mating (p < 0.001). 15-Ketodihydro-PGF(2alpha) concentrations decreased rapidly at the moment of the exposure of the stallions to an oestrous mare (p < 0.05), returned to pre-mating concentrations and then decreased again 30 min after mating (p < 0.05). |
Address |
Dipartimento di Scienze Cliniche Veterinarie, Sez. Clinica Ostetrica e Ginecologica Veterinaria, Milan, Italy |
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English |
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ISSN |
0936-6768 |
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Notes |
PMID:17107515 |
Approved |
no |
Call Number |
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Serial |
1855 |
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Author |
Knoll, H.; Horschak, R. |
Title |
[Ecology of fermentation sarcinas Sarcina ventriculi and Sarcina maxima] |
Type |
Journal Article |
Year |
1973 |
Publication |
Zeitschrift fur Allgemeine Mikrobiologie |
Abbreviated Journal |
Z Allg Mikrobiol |
Volume |
13 |
Issue |
5 |
Pages |
449-451 |
Keywords |
Animals; Digestive System; Ecology; Haplorhini; Horses; Primates; *Sarcina |
Abstract |
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Language |
German |
Summary Language |
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Original Title |
Zur Okologie der Garungssarcinen Sarcina ventriculi und Sarcina maxima |
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ISSN |
0044-2208 |
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Notes |
PMID:4203565 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2717 |
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Author |
Hertsch, B.; Becker, C. |
Title |
[Occurrence of aseptic necrosis of the palmar and plantar ligament in the horse--a contribution to the differentiation of sesamoid bone diseases] |
Type |
Journal Article |
Year |
1986 |
Publication |
DTW. Deutsche tierarztliche Wochenschrift |
Abbreviated Journal |
Dtsch Tierarztl Wochenschr |
Volume |
93 |
Issue |
6 |
Pages |
263-266 |
Keywords |
Animals; Diagnosis, Differential; Horse Diseases/*pathology; Horses; Ligaments, Articular/*pathology; Osteonecrosis/*pathology; Sesamoid Bones/*pathology |
Abstract |
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Language |
German |
Summary Language |
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Original Title |
Zum Vorkommen der aseptischen Nekrose im Ligamentum palmare bzw. plantare beim Pferd--ein Beitrag zur Differenzierung der Gleichbeinerkrankungen |
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ISSN |
0341-6593 |
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Notes |
PMID:3527654 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
150 |
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Author |
Timney, B.; Keil, K. |
Title |
Local and global stereopsis in the horse |
Type |
Journal Article |
Year |
1999 |
Publication |
Vision Research |
Abbreviated Journal |
Vision Res |
Volume |
39 |
Issue |
10 |
Pages |
1861-1867 |
Keywords |
Animals; Depth Perception/*physiology; Female; Horses/*physiology; Pattern Recognition, Visual/physiology; Psychophysics; Sensory Thresholds/physiology; Vision, Binocular/physiology; Vision, Monocular/physiology |
Abstract |
Although horses have laterally-placed eyes, there is substantial binocular overlap, allowing for the possibility that these animals have stereopsis. In the first experiment of the present study we measured local stereopsis by obtaining monocular and binocular depth thresholds for renal depth stimuli. On all measures, the horses' binocular performance was superior to their monocular. When depth thresholds were obtained, binocular thresholds were several times superior to those obtained monocularly, suggesting that the animals could use stereoscopic information when it was available. The binocular thresholds averaged about 15 min arc. In the second experiment we obtained evidence for the presence of global stereopsis by testing the animals' ability to discriminate between random-dot stereograms with and without consistent disparity information. When presented with such stimuli they showed a strong preference for the cyclopean equivalent of the positive stimulus with the real depth. These results provide the first behavioral demonstration of a full range of stereoscopic skills in a lateral-eyed mammal. |
Address |
Department of Psychology, Faculty of Social Science, University of Western Ontario, London, Canada. timney@julian.uwo.ca |
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English |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0042-6989 |
ISBN |
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Medium |
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Notes |
PMID:10343877 |
Approved |
yes |
Call Number |
Equine Behaviour @ team @ |
Serial |
3580 |
Permanent link to this record |
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Author |
Bernstein, I.S.; Dobrofsky, M. |
Title |
Compensatory social responses of older pigtailed monkeys to maternal separation |
Type |
Journal Article |
Year |
1981 |
Publication |
Developmental Psychobiology |
Abbreviated Journal |
Dev Psychobiol |
Volume |
14 |
Issue |
2 |
Pages |
163-168 |
Keywords |
Animals; Dependency (Psychology); Female; Macaca nemestrina; Male; *Maternal Deprivation; *Social Behavior |
Abstract |
Thirteen 3-5-year-old pigtailed monkeys were subjected to five 2-hr maternal separations while remaining in their normal social group. Significant changes in activity profiles were noted during separation and reunion phases. This suggests the continued social dependence of older offspring upon the matriarch. The shift in social activities reflected attempts by the juvenile and adolescent subjects to compensate for maternal absence by intensification of other affiliative social behavior and avoidance of potentially socially disruptive situation. The subjects oriented more towards kin in the absence of the matriarch, but actual time with kin decreased. Upon the return of the matriarch, the intensified some responses depressed during her absence and returned to preseparation social relationships. Play and aggressive responses declined whereas social approaches increased during maternal absences. Submissive responses declined upon the return of the matriarch, and play increased. The subjects also showed a marked, temporary increase of direct interaction, largely sniffing and grooming, with the matriarch upon her return. |
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English |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0012-1630 |
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:7202854 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4171 |
Permanent link to this record |
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Author |
Jensen, G.D.; Gordon, B.N.; Wolfheim, J. |
Title |
Nursing behavior in infant monkeys: a sequence analysis |
Type |
Journal Article |
Year |
1975 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
Volume |
55 |
Issue |
1-2 |
Pages |
115-127 |
Keywords |
Animals; Dependency (Psychology); *Feeding Behavior; Female; *Macaca; Male; Sensory Deprivation; Social Behavior; Spatial Behavior |
Abstract |
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English |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
0005-7959 |
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Notes |
PMID:1191212 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4153 |
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Author |
Dorzh, C.; Minar, J. |
Title |
Warble flies of the families Oestridae and Gasterophilidae (Diptera) found in the Mongolian People's Republic |
Type |
Journal Article |
Year |
1971 |
Publication |
Folia Parasitologica |
Abbreviated Journal |
Folia Parasitol (Praha) |
Volume |
18 |
Issue |
2 |
Pages |
161-164 |
Keywords |
Animals; Deer; Diptera/*classification; Duodenum; Ecology; Ectoparasitic Infestations/*veterinary; Goats; Horses; Larva; Mongolia; Nasal Mucosa; Nasopharynx; Pharynx; Sheep |
Abstract |
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English |
Summary Language |
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Original Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0015-5683 |
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:5163213 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2731 |
Permanent link to this record |
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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 |
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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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0962-8452 |
ISBN |
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Conference |
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Notes |
PMID:8153135 |
Approved |
no |
Call Number |
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Serial |
1823 |
Permanent link to this record |
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Author |
Zhao, C.J.; Qin, Y.H.; Lee, X.H.; Wu, C. |
Title |
Molecular and cytogenetic paternity testing of a male offspring of a hinny |
Type |
Journal Article |
Year |
2006 |
Publication |
Journal of Animal Breeding and Genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie |
Abbreviated Journal |
J Anim Breed Genet |
Volume |
123 |
Issue |
6 |
Pages |
403-405 |
Keywords |
Animals; Cytogenetic Analysis; DNA, Mitochondrial/genetics; Equidae/*genetics; Female; Horses/genetics; Hybridization, Genetic; Male; Microsatellite Repeats; Pedigree; Protamines/genetics; Sexual Behavior, Animal |
Abstract |
An alleged male foal of a female mule, whose sire and grandparents were unknown, was identified for its pedigree. Parentage testing was conducted by comparing polymorphism of 12 microsatellite DNA sites and mitochondrial D-loop sequences of the male foal and the female mule. Both the sequence analysis of species-specific DNA fragments and a cytogenetic analysis were performed to identify the species of the foal and its parents. The results showed that the alleged female mule is actually a hinny, and the male foal, which possesses 62 chromosomes, qualifies as an offspring of the female hinny and a jack donkey. |
Address |
Equine Center, China Agricultural University, Beijing, China |
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English |
Summary Language |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0931-2668 |
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:17177697 |
Approved |
no |
Call Number |
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Serial |
1846 |
Permanent link to this record |
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Author |
Balakrishnan, G.; Hu, Y.; Spiro, T.G. |
Title |
Temperature-jump apparatus with Raman detection based on a solid-state tunable (1.80-2.05 microm) kHz optical parametric oscillator laser |
Type |
Journal Article |
Year |
2006 |
Publication |
Applied Spectroscopy |
Abbreviated Journal |
Appl Spectrosc |
Volume |
60 |
Issue |
4 |
Pages |
347-351 |
Keywords |
Animals; Cytochromes c/analysis; Horses; Lasers; Myoglobin/metabolism; Spectrum Analysis, Raman/*instrumentation/*methods; *Temperature |
Abstract |
The operating characteristics of a pulsed (10 ns) tunable near-infrared (NIR) laser source are described for temperature-jump (T-jump) applications. A Q-switched Nd:YLF laser (approximately 10 ns pulses) with a 1 kHz repetition rate is used to pump a potassium titanyl arsenate (KTA) crystal-based optical parametric oscillator (OPO), producing approximately 1 mJ NIR pulses that are tunable (1.80-2.05 microm) across the 1.9 microm vibrational overtone band of water. This T-jump source has been coupled to a deep ultraviolet (UV) probe laser for Raman studies of protein dynamics. T-jumps of up to 30 degrees C, as measured via the O-H stretching Raman band of water, are readily achieved. Application to cytochrome c unfolding is demonstrated. |
Address |
Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA |
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English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-7028 |
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:16613628 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3764 |
Permanent link to this record |