Records |
Author |
Ulloa, A.; Gonzalez-Ceron, L.; Rodriguez, M.H. |
Title |
Host selection and gonotrophic cycle length of Anopheles punctimacula in southern Mexico |
Type |
Journal Article |
Year |
2006 |
Publication |
Journal of the American Mosquito Control Association |
Abbreviated Journal |
J Am Mosq Control Assoc |
Volume |
22 |
Issue |
4 |
Pages |
648-653 |
Keywords |
Animals; Anopheles/*physiology; Appetitive Behavior/*physiology; Cattle; Female; Horses; Humans; Insect Vectors/*physiology; Malaria/transmission; Mexico; Oviparity/*physiology; Seasons; Time Factors; Vitellogenesis/physiology |
Abstract |
The host preference, survival rates, and length of the gonotrophic cycle of Anopheles punctimacula was investigated in southern Mexico. Mosquitoes were collected in 15-day separate experiments during the rainy and dry seasons. Daily changes in the parous-nulliparous ratio were recorded and the gonotrophic cycle length was estimated by a time series analysis. Anopheles punctimacula was most abundant during the dry season and preferred animals to humans. The daily survival rate in mosquitoes collected in animal traps was 0.96 (parity rate = 0.86; gonotrophic cycle = 4 days). The length of gonotrophic cycle of 4 days was estimated on the base of a high correlation coefficient value appearing every 4 days. The minimum time estimated for developing mature eggs after blood feeding was 72 h. The proportion of mosquitoes living enough to transmit Plasmodium vivax malaria during the dry season was 0.35. |
Address |
Centro de Investigacion de Paludismo, Instituto Nacional de Salud Publica, Apartado Postal 537, Tapachula, Chiapas 30700, Mexico |
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English |
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Series Issue |
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ISSN |
8756-971X |
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Notes |
PMID:17304932 |
Approved |
no |
Call Number |
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Serial |
1830 |
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Author |
Elhay, M.; Newbold, A.; Britton, A.; Turley, P.; Dowsett, K.; Walker, J. |
Title |
Suppression of behavioural and physiological oestrus in the mare by vaccination against GnRH |
Type |
Journal Article |
Year |
2007 |
Publication |
Australian Veterinary Journal |
Abbreviated Journal |
Aust Vet J |
Volume |
85 |
Issue |
1-2 |
Pages |
39-45 |
Keywords |
Animals; Antibodies/blood; Estradiol/blood; *Estrus/drug effects/physiology; Female; Gonadotropin-Releasing Hormone/*immunology/*pharmacology; Horses/*physiology; Luteinizing Hormone/blood; Ovulation/*drug effects/physiology; Progesterone/blood; Safety; Sexual Behavior, Animal/drug effects/physiology; Time Factors; Vaccination/veterinary |
Abstract |
OBJECTIVE: To examine the immunogenicity of an equine immunocontraceptive vaccine and its efficacy in controlling hormone-related behaviour. DESIGN: A total of 24 mares at two sites in Australia were vaccinated with an immunocontraceptive vaccine comprising gonadotrophin releasing hormone (GnRH) conjugated to a carrier protein in immunostimulating complex as an adjuvant. Twelve animals at each site received a placebo of adjuvant alone and served as controls for seasonal oestrus, hormonal and behaviour patterns. Animals were observed for injection site reactions, ovarian and follicular activity, and serum levels of antibody, 17beta-oestradiol and progesterone in the weeks following vaccination. Mares were also examined for oestrous behaviour by teasing with a stallion. RESULTS: All mares responded to vaccination. Two weeks following the second vaccination there was a peak in antibody response to GnRH that declined gradually over the following weeks. Commensurate with the elevated anti-GnRH antibody there was a marked effect on ovarian activity with a reduction in 17beta-oestradiol and progesterone levels in the 24 vaccinated mares. There was also a reduction of oestrus-related behaviour as determined by a teaser stallion. This effect lasted a minimum of 3 months and correlated with the initial level of antibody response. CONCLUSION: Following a conventional two-dose immunisation regime this commercially available equine immunocontraceptive vaccine was effective at inhibiting oestrous behaviour for at least 3 months. This vaccine has a high level of safety since there were no significant local reactions nor were there any adverse systemic responses to vaccination. |
Address |
Veterinary Medicines Research and Development, Pfizer Animal Health, Parkville, VIC 3052. Martin.Elhay@pfizer.com |
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ISSN |
0005-0423 |
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Notes |
PMID:17300452 |
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no |
Call Number |
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Serial |
1831 |
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Author |
Momozawa, Y.; Takeuchi, Y.; Tozaki, T.; Kikusui, T.; Hasegawa, T.; Raudsepp, T.; Chowdhary, B.P.; Kusunose, R.; Mori, Y. |
Title |
SNP detection and radiation hybrid mapping in horses of nine candidate genes for temperament |
Type |
Journal Article |
Year |
2007 |
Publication |
Animal Genetics |
Abbreviated Journal |
Anim Genet |
Volume |
38 |
Issue |
1 |
Pages |
81-83 |
Keywords |
Animals; *Behavior, Animal; Breeding; Horses/*genetics/physiology; *Polymorphism, Single Nucleotide; Radiation Hybrid Mapping; *Temperament |
Abstract |
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Address |
Laboratory of Veterinary Ethology, The University of Tokyo, Tokyo 113-8657, Japan |
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English |
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ISSN |
0268-9146 |
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Notes |
PMID:17257195 |
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no |
Call Number |
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Serial |
1834 |
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Author |
Meral, Y.; Cakiroglu, D.; Sancak, A.A.; Cyftcy, G.; Karabacak, A. |
Title |
Relationships between serum serotonin and serum lipid levels, and aggression in horses |
Type |
Journal Article |
Year |
2007 |
Publication |
DTW. Deutsche Tierarztliche Wochenschrift |
Abbreviated Journal |
Dtsch Tierarztl Wochenschr |
Volume |
114 |
Issue |
1 |
Pages |
30-32 |
Keywords |
*Aggression; Animals; Behavior, Animal/*physiology; Case-Control Studies; Female; Horses/*blood; Lipids/*blood; Male; Serotonin/*blood |
Abstract |
Levels of serum serotonin and serum lipids--triglyceride, total cholesterol, low-density lipoprotein, high-density lipoprotein and very low-density lipoprotein, were determined in normal horses and horses diagnosed with aggression on the basis of a questionnaire survey. Blood serotonin levels in aggressive horses were found to be significantly lower than in non-aggressive horses (P < 0.01), but no association was found with respect to blood lipids. |
Address |
Department of Internal Diseases, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey. ymeral@omu.edu.t |
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English |
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Edition |
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ISSN |
0341-6593 |
ISBN |
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Notes |
PMID:17252934 |
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no |
Call Number |
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Serial |
1835 |
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Author |
Krcmar, S.; Mikuska, A.; Merdic, E. |
Title |
Response of Tabanidae (Diptera) to different natural attractants |
Type |
Journal Article |
Year |
2006 |
Publication |
Journal of Vector Ecology : Journal of the Society for Vector Ecology |
Abbreviated Journal |
J Vector Ecol |
Volume |
31 |
Issue |
2 |
Pages |
262-265 |
Keywords |
Animals; Appetitive Behavior/*physiology; Cattle/urine; Diptera/*physiology; Female; Horses/urine; Insect Control/methods; Sheep/urine; Swine/urine; Urine/*physiology |
Abstract |
The response of female tabanids to natural attractants was studied in the Monjoros Forest along the Nature Park Kopacki rit in eastern Croatia. Tabanids were caught in canopy traps baited with either aged cow, horse, sheep, or pig urine and also in unbaited traps. Tabanids were collected in a significantly higher numbers in traps baited with natural attractants compared to unbaited traps. The number of females of Tabanus bromius, Tabanus maculicornis, Tabanus tergestinus, and Hybomitra bimaculata collected from canopy traps baited with cow urine and traps baited with other natural attractants differed significantly. Females of Haematopota pluvialis were also collected more frequently in canopy traps baited with aged cow urine than in those with aged horse urine, but this difference was not significant. However, the number of females of Haematopota pluvialis collected from canopy traps baited with other natural attractants (sheep and pig urine) differed significantly when compared with aged cow urine baited traps. Canopy traps baited with aged cow urine collected significantly more Tabanus sudeticus than did traps baited with aged pig urine. Finally, the aged cow urine baited canopy traps collected 51 times more tabanids than unbaited traps, while aged horse, aged sheep, and aged pig urine baited traps collected 36, 30, and 22 times as many tabanids, respectively, than unbaited traps. |
Address |
Department of Biology, JJ Strossmayer University, Lj. Gaja 6, HR-31000 Osijek, Croatia |
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English |
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Edition |
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ISSN |
1081-1710 |
ISBN |
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Notes |
PMID:17249343 |
Approved |
no |
Call Number |
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Serial |
1836 |
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Author |
Krcmar, S.; Maric, S. |
Title |
Analysis of the feeding sites for some horse flies (Diptera, Tabanidae) on a human in Croatia |
Type |
Journal Article |
Year |
2006 |
Publication |
Collegium Antropologicum |
Abbreviated Journal |
Coll Antropol |
Volume |
30 |
Issue |
4 |
Pages |
901-904 |
Keywords |
Animals; Croatia; *Diptera; Feeding Behavior; Humans; Insect Bites and Stings/*pathology |
Abstract |
The landing patterns of horse flies on the human body were observed in Croatia. A total of 386 horse flies belonging to 22 species were sampled. The five most commonly collected species were used in the analysis. The stochastic linear connection is tight among the landings of the species Tabanus bromius, Tabanus maculicornis, Tabanus tergestinus, and Philipomyia graeca on the human body regions (matrix R). The preferred feeding area for these four species was the lower leg, whereas for the species Haematopota pluvialis it was the head and neck. Of the total number of horse flies that landed 44.81% were on the lower leg. Only 0.26% landed on the forearm. Chi-square analysis indicated non random landing patterns on human by these horse flies. |
Address |
Department of Biology, University J. J. Strossmayer , Osijek, Croatia. stjepan@ffos.hr |
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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 |
0350-6134 |
ISBN |
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Notes |
PMID:17243567 |
Approved |
no |
Call Number |
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Serial |
1837 |
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Author |
Mills, D.S. |
Title |
Comments about the importance of behaviour to equine clinicians |
Type |
Journal Article |
Year |
2007 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
Volume |
39 |
Issue |
1 |
Pages |
95 |
Keywords |
Animals; *Behavior, Animal/physiology; *Clinical Competence; Horses/*physiology; Humans; Veterinarians/*psychology; Veterinary Medicine/*standards |
Abstract |
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English |
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ISSN |
0425-1644 |
ISBN |
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Notes |
PMID:17228604 |
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no |
Call Number |
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Serial |
1839 |
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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 |
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Series Issue |
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Edition |
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ISSN |
0931-2668 |
ISBN |
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Notes |
PMID:17177697 |
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no |
Call Number |
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Serial |
1846 |
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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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Edition |
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ISSN |
0936-6768 |
ISBN |
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Notes |
PMID:17107515 |
Approved |
no |
Call Number |
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Serial |
1855 |
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Author |
Sundaresan, S.R.; Fischhoff, I.R.; Dushoff, J.; Rubenstein, D.I. |
Title |
Network metrics reveal differences in social organization between two fission-fusion species, Grevy's zebra and onager |
Type |
Journal Article |
Year |
2007 |
Publication |
Oecologia |
Abbreviated Journal |
Oecologia |
Volume |
151 |
Issue |
1 |
Pages |
140-149 |
Keywords |
Analysis of Variance; Animals; Behavior, Animal/*physiology; *Environment; Equidae/*physiology; Female; India; Kenya; Male; *Models, Theoretical; *Social Behavior; *Social Environment |
Abstract |
For species in which group membership frequently changes, it has been a challenge to characterize variation in individual interactions and social structure. Quantifying this variation is necessary to test hypotheses about ecological determinants of social patterns and to make predictions about how group dynamics affect the development of cooperative relationships and transmission processes. Network models have recently become popular for analyzing individual contacts within a population context. We use network metrics to compare populations of Grevy's zebra (Equus grevyi) and onagers (Equus hemionus khur). These closely related equids, previously described as having the same social system, inhabit environments differing in the distribution of food, water, and predators. Grevy's zebra and onagers are one example of many sets of coarsely similar fission-fusion species and populations, observed elsewhere in other ungulates, primates, and cetaceans. Our analysis of the population association networks reveals contrasts consistent with their distinctive environments. Grevy's zebra individuals are more selective in their association choices. Grevy's zebra form stable cliques, while onager associations are more fluid. We find evidence that females associate assortatively by reproductive state in Grevy's zebra but not in onagers. The current approach demonstrates the utility of network metrics for identifying fine-grained variation among individuals and populations in association patterns. From our analysis, we can make testable predictions about behavioral mechanisms underlying social structure and its effects on transmission processes. |
Address |
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA. ssundare@princeton.edu |
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English |
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Edition |
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ISSN |
0029-8549 |
ISBN |
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Notes |
PMID:16964497 |
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no |
Call Number |
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Serial |
1863 |
Permanent link to this record |