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Seghrouchni, M.; Elkasraoui, H.; Piro, M.; Alyakine, H.; Bouayad, H.; Chakir, J.; Tligui, N.; Elallali, K.; Azrib, R. |
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Title |
Osteoarticular radiographic findings of the distal forelimbs in Tbourida Horses |
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Journal Article |
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Year |
2019 |
Publication |
Heliyon |
Abbreviated Journal |
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Volume |
5 |
Issue |
9 |
Pages |
e02514 |
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Keywords |
Animal science; Pathophysiology; Animal behavior; Animal breeding; Veterinary medicine; Veterinary science; Horse; Radiographic findings; Forelimb; X-ray; Tbourida |
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Abstract |
Tbourida is a traditional Moroccan equestrian sport in which 15 horses gallop 200 m in a line while riders fire into the sky with muskets. The stop is the finale and representative demands of this equestrian event. Such particular sudden stop after a fast gallop requires a hyperextension of the metacarpophalangeal joint. Indeed, it is well known that Tbourida show predisposes horses to different injuries of the hard and soft tissues of the distal forelimbs. Yet, there is a paucity of research that examined such lesions. The aim of the present study was to investigate for the first time the type and the prevalence of osteoarticular findings in the distal forelimbs of Tbourida horses using radiographic images. The study was conducted on 127 Tbourida horses aged between 2.5 and 15 years old with 6-year-old horses being the most affected. Data analysis showed that 93,7% of horses exhibit degenerative joint lesions of the fetlock, 86,6% showed ossification of the ungual cartilage, 78,7% had enthesophytes associated with the deep digital flexor tendons, 81,1% had enthesophytes associated with the suspensory ligament branches, and 19,6% showed a particular exostosis on the first phalanx. This large number of lesions reflects how this sport is difficult for horses and also argues that animals are suffering from a lack of welfare and care in their husbandry management. |
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2405-8440 |
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Equine Behaviour @ team @ |
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6672 |
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Piro, M.; Benjouad, A.; Karom, A.; Nabich, A.; Benbihi, N.; El Allali, K.; Machmoum, M.; Ouragh, L. |
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Title |
Genetic Structure of Severe Combined Immunodeficiency Carrier Horses in Morocco Inferred by Microsatellite Data |
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Journal Article |
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Year |
2011 |
Publication |
Journal of Equine Veterinary Science |
Abbreviated Journal |
J. Equine Vet. Sci. |
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31 |
Issue |
11 |
Pages |
618-624 |
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Keywords |
Scid; Arab horses; Arab-Barb horses; Microsatellite; Dna; Genetic structure |
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A total of 17 microsatellite deoxyribonucleic acid loci used routinely for horse parentage control were used to evaluate genetic diversity among normal Arabian horses and severe combined immunodeficiency (SCID) carrier Arabian horses (ArS) and normal Arab-Barb horses and SCID carrier Arab-Barb horses (ArbeS). On the basis of the genotype of 186 horses, mean allelic diversity was estimated as 6.82, 5.53, and 6.7059 in normal Arabian horses, ArS, and for both groups of Arab-Barb horses, respectively. Five specific alleles were observed in ArS and ArbeS, with one common with ArS at HMS6, whereas five alleles common between ArS and ArbeS had a high frequency. Expected and observed heterozygosity showed great heterogeneity in the population studied and were similar or higher when compared with other studies on Arabian horses. Coefficient of gene differentiation Gst of Nei associated with Nei's genetic distance and multivariate correspondence analysis indicated a possible differentiation between the studied populations when analyzed separately according to breed. Probability of assignment of a horse to a specific group was assessed using a full and partial Bayesian approach. In all, 80.6% of Arab horses and 78.2% of Arab-Barb horses were assigned properly with a partial Bayesian test, which provided better results than the full one. These findings will be useful for identification of SCID carrier horses by using the microsatellite deoxyribonucleic acid loci used routinely for horse parentage control in our laboratory. |
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0737-0806 |
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Equine Behaviour @ team @ |
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6657 |
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Zhang, Y.; Cao, Q.S.; Rubenstein, D.I.; Zang, S.; Songer, M.; Leimgruber, P.; Chu, H.; Cao, J.; Li, K.; Hu, D. |
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Title |
Water Use Patterns of Sympatric Przewalski's Horse and Khulan: Interspecific Comparison Reveals Niche Differences |
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Journal Article |
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2015 |
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Plos One |
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Plos One |
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10 |
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7 |
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e0132094 |
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Acquiring water is essential for all animals, but doing so is most challenging for desert-living animals. Recently Przewalski's horse has been reintroduced to the desert area in China where the last wild surviving member of the species was seen before it vanished from China in the1960s. Its reintroduction placed it within the range of a close evolutionary relative, the con-generic Khulan. Determining whether or not these two species experience competition and whether or not such competition was responsible for the extinction of Przewalski's horses in the wild over 50 years ago, requires identifying the fundamental and realized niches of both species. We remotely monitored the presence of both species at a variety of water points during the dry season in Kalamaili Nature Reserve, Xinjiang, China. Przewalski's horses drank twice per day mostly during daylight hours at low salinity water sources while Khulans drank mostly at night usually at high salinity water points or those far from human residences. Spatial and temporal differences in water use enables coexistence, but suggest that Przewalski's horses also restrict the actions of Khulan. Such differences in both the fundamental and realized niches were associated with differences in physiological tolerances for saline water and human activity as well as differences in aggression and dominance. |
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Public Library of Science |
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Equine Behaviour @ team @ |
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6377 |
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Shen, Y.-Q.; Hebert, G.; Lin, L.-Y.; Luo, Y.-L.; Moze, E.; Li, K.-S.; Neveu, P.J. |
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Interleukine-1β and interleukine-6 levels in striatum and other brain structures after MPTP treatment: influence of behavioral lateralization |
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Journal Article |
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2005 |
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Journal of Neuroimmunology |
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158 |
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1–2 |
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14-25 |
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N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine; Dopamine; Brain; Interleukin-6; Interleukin-1β; Behavioral lateralization |
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MPTP (N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) induces diminution of the dopamine in nigrostriatal pathway and cognitive deficits in mice. MPTP treatment also increases pro-inflammatory cytokine production in substantia nigra and striatum. Since, pro-inflammatory cytokines influence striatal dopamine content and provoke cognitive impairments, the cognitive defects induced by MPTP may be partly due to brain cytokine induction in other structures than nigrostriatal pathway. Furthermore, behavioral lateralization, as assessed by paw preference, influences cytokine production at the periphery and in the central nervous system. Behavioral lateralization may thus influence brain cytokine levels after MPTP. In order to address these issues, mice selected for paw preference were injected with 25 mg/kg MPTP i.p. for five consecutive days after which striatal dopamine and DOPAC contents were measured by HPLC and IL-1β and IL-6 quantified by ELISA in the striatum, cerebral cortex, hippocampus and hypothalamus. The results showed that MPTP treatment induced dramatic loss of DA in striatum, simultaneously, IL-6 levels decreased in the striatum and increased in hippocampus and hypothalamus, while IL-1β levels decreased in the striatum, cerebral cortex and hippocampus. Interestingly, striatal dopamine turnover under basal conditions as well as striatal IL-1β and IL-6 levels under basal conditions and after MPTP depended on behavioral lateralization. Left pawed mice showed a higher decrease in dopamine turnover and lower cytokine levels as compared to right pawed animals. Behavioral lateralization also influenced IL-6 hippocampal levels under basal conditions and IL-1β cortical levels after MPTP. From these results, it can be concluded that MPTP-induced cognitive defects are accompanied by an alteration of pro-inflammatory cytokine levels in brain structures other than those involved in the nigrostriatal pathway. In addition, MPTP-induced dopamine decrease is influenced by behavioral lateralization, possibly through an effect on brain cytokine levels. |
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0165-5728 |
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Equine Behaviour @ team @ |
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5781 |
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Mrabet, O.; Es-Salah, Z.; Telhiq, A.; Aubert, A.; Liege, S.; Choulli, K.; Neveu, P.J. |
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Influence of gender and behavioural lateralisation on two exploratory models of anxiety in C3H mice |
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Journal Article |
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2000 |
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Behav Processes |
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52 |
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1 |
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35-42 |
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Behavioural lateralisation, which has been postulated to be an individual personality trait, is related to the activity of various physiological systems including the immune system. As lateralisation has been related to anxiety, which is known to influence immune reactivity, it can be hypothesized that the relation between lateralisation and immune reactivity involves individual behavioural patterns as they appear in exploratory-based anxiety models. In order to answer this question, a behavioural investigation focussing on exploratory activity was undertaken in male and female C3H mice previously selected for their paw preference. The observations were performed using two generic paradigms: elevated plus-maze and open field. Exploratory behaviour in the open field, but not in the plus-maze, was influenced by the interactive effect of gender and behavioural lateralisation. A significant difference between male and female mice was found in left-pawed but not in right-pawed nor ambidextrous animals, left-pawed female mice displaying the less exploratory behaviours. These results provide a first evidence of inter-individual variations in exploratory behaviours involving interaction between gender and lateralisation. |
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U.F.R. des Sciences Biologiques et Pharmaceutiques, Departement de Biologie, Faculte des Sciences, Universite Ibn Tofail, Kenitra, Morocco |
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English |
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0376-6357 |
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PMID:11011107 |
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Call Number |
Equine Behaviour @ team @ |
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4149 |
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