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Author White, A.M.; Swaisgood, R.R.; Czekala, N. url  doi
openurl 
  Title Ranging patterns in white rhinoceros, Ceratotherium simum simum: implications for mating strategies Type Journal Article
  Year 2007 Publication Animal Behaviour Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume (down) 74 Issue 2 Pages 349-356  
  Keywords Ceratotherium simum simum; foraging; habitat choice; home range use; mate choice; mating systems; ranging pattern; resource distribution; white rhinoceros  
  Abstract How animals use space has important consequences for feeding ecology, social organization, mating strategies and conservation management. In white rhinoceros, female home ranges are much larger than male territories, suggesting that movement patterns are influenced by factors other than resource distribution. In this study we placed radiotransmitters on 15 female white rhinoceros, recording 1758 locations and collecting behavioural data during 1671 observation sessions, making this the largest data set of its kind in this species. We investigated how habitat variables and male territories influenced female movement and reproductive behaviour. Female home ranges were approximately 20 km2 and core areas were 5 km2, with male territories roughly the same size as female core areas. Female range size did not vary with season, but the pattern of space use did vary. Females used grassland habitat preferentially, utilizing these areas significantly more than expected based on availability. Findings relevant to the mating strategy include: (1) the amount of grassland in a male's territory predicted female use of the territory; (2) the time that a female spent in a male's territory was a significant predictor of reproductive activity with the male, indicating that females probably mate with the most familiar male; and (3) the temporal pattern of female space use suggests that females did not increase mate sampling behaviour nor did they become more choosy about which males they visited when reproductively active. These findings suggest that males may maximize reproductive success by defending areas containing more grassland habitat.  
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  ISSN 0003-3472 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6146  
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Author Lefebvre, L.; Reader, S.M.; Sol, D. doi  openurl
  Title Brains, Innovations and Evolution in Birds and Primates Type Journal Article
  Year 2004 Publication Brain, Behavior and Evolution Abbreviated Journal Brain. Behav. Evol.  
  Volume (down) 63 Issue 4 Pages 233-246  
  Keywords Innovation W Brain evolution W Hyperstriatum ventrale W Neostriatum W Isocortex W Birds W Primates W Tool use W Invasion biology  
  Abstract Abstract

Several comparative research programs have focusedon the cognitive, life history and ecological traits thataccount for variation in brain size. We review one ofthese programs, a program that uses the reported frequencyof behavioral innovation as an operational measureof cognition. In both birds and primates, innovationrate is positively correlated with the relative size of associationareas in the brain, the hyperstriatum ventrale andneostriatum in birds and the isocortex and striatum inprimates. Innovation rate is also positively correlatedwith the taxonomic distribution of tool use, as well asinterspecific differences in learning. Some features ofcognition have thus evolved in a remarkably similar wayin primates and at least six phyletically-independent avianlineages. In birds, innovation rate is associated withthe ability of species to deal with seasonal changes in theenvironment and to establish themselves in new regions,and it also appears to be related to the rate atwhich lineages diversify. Innovation rate provides a usefultool to quantify inter-taxon differences in cognitionand to test classic hypotheses regarding the evolution ofthe brain.
 
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  ISSN 0006-8977 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4738  
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Author Barnard, C.J.; Luo, N. url  doi
openurl 
  Title Acquisition of dominance status affects maze learning in mice Type Journal Article
  Year 2002 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume (down) 60 Issue 1 Pages 53-59  
  Keywords Social status; Learning; Radial maze; Mouse  
  Abstract Learning is likely to be costly and thus subject to trade-off with other components of life history. An obvious prediction, therefore, is that investment in learning, and thus learning performance, will vary with individual life history strategy and the reproductive value of the learning outcome. We tested this idea in the context of social dominance in male laboratory mice, using a simple radial maze paradigm to compare the ability of high- and low-ranking male mice to track changing food location. We tested animals in randomly selected pairs before and after establishing aggressive rank relationships to distinguish intrinsic differences in learning ability from those attributable to acquiring high or low rank. There was no difference in learning between later dominants and subordinates prior to establishing rank relationships. After pairing, however, dominants showed a significantly greater percentage of correct responses, with the difference being greatest earlier in a sequence of trials. The percentage of correct responses also increased with the amount of aggression initiated during pairing. The results thus appeared to reflect a state-dependent change in learning associated with the aggressive social relationships formed during pairing.  
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  Notes Approved no  
  Call Number Serial 2075  
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Author Petter-Puchner, A.H.; Froetscher, W.; Krametter-Froetscher, R.; Lorinson, D.; Redl, H.; van Griensven, M. doi  openurl
  Title The long-term neurocompatibility of human fibrin sealant and equine collagen as biomatrices in experimental spinal cord injury Type Journal Article
  Year 2007 Publication Experimental and Toxicologic Pathology : Official Journal of the Gesellschaft fur Toxikologische Pathologie Abbreviated Journal Exp Toxicol Pathol  
  Volume (down) 58 Issue 4 Pages 237-245  
  Keywords Animals; Axotomy; Biocompatible Materials/*therapeutic use; Collagen/*therapeutic use; Fibrin Tissue Adhesive/*therapeutic use; Horses; Humans; Immunohistochemistry; Male; Motor Activity/physiology; Nerve Regeneration/*physiology; Rats; Recovery of Function; Spinal Cord/pathology/physiology; Spinal Cord Injuries/pathology/*therapy; Thoracic Vertebrae  
  Abstract INTRODUCTION: While fibrin sealant (FS) and equine collagen (EC) have been used as scaffold materials in experimental spinal cord injury (SCI), questions concerning neurocompatibility still remain. In this study, we assessed potential adverse effects, as well as functional and histological impact of FS and EC in subtotal hemisection of the thoracic spinal cord (SC) in rats. METHODS: 124 male rats were randomly assigned to four main groups (n=31): Sham (SH), Lesion only (L), fibrin sealant (GFS) and equine collagen group (GEC). SH animals received laminectomy only; all other animals underwent subtotal lateral hemisection at T9. Treatment consisted of application of FS or EC into the lesion gap in GFS and GEC, which was left empty in L. GFS, GEC, L and SH were each further divided into 4 subgroups: One subgroup, consisting of 10 rats was subjected to behavioural and reflex testing before surgery and followed up on days 1,7, 14, 21, 28 post op and then sacrificed. Haemalaun or cresyl violet (CV) was used to identify neutrophils in parasagittal cord sections which were obtained on day 1 (n=7). Sections stained for quantification of microglia/macrophages using ED-1 on day 3 (n=7), day 7 (n=7) and day 28 (n=7 out of 10). Additionally, neural filament (NF) staining was chosen to detect axonal regeneration and the length of ingrowth into FS and EC, Luxol blue for myelination, Von Willebrand factor for vascularisation, and glial fibrillary acidic protein (GFAP) staining for detection of astrocytes in glial scars on day 28. RESULTS: No adverse effects were observed in the treatment groups. Compared to L, GFS and GEC performed significantly better in the Basso, Beattie, Bresnahan (BBB) score and hopping responses. Proprioceptive placing was markedly improved in FS and EC compared to L. Axonal regrowth was found in GFS and GEC--the regrowth in the GFS was accompanied by myelination and vascularisation. Glial scarring occurred in all groups. Discussion Both biomatrices improved functional recovery compared to L and no adverse effects were perceived.  
  Address Ludwig Boltzmann Institute of Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200-Vienna, Austria  
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  ISSN 0940-2993 ISBN Medium  
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  Notes PMID:17118635 Approved no  
  Call Number Serial 1852  
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Author Valone, T.J. openurl 
  Title Group foraging, public information, and patch estimation Type Journal Article
  Year 1989 Publication Oikos Abbreviated Journal Oikos  
  Volume (down) 56 Issue 3 Pages 357-363  
  Keywords Techniques; Mathematical techniques; Nutrition; Feeding behaviour; Behaviour; Social behaviour^, Comprehensive Zoology; Mathematical model; Resource patch estimation by group members; use of public information; Foraging; Group behaviour  
  Abstract Public information is information about the quality of a patch that can be obtained by observing the foraging success of other individuals in that patch. I examine the influence of the use of public information on patch departure and foraging efficiency of group members. When groups depart a patch with the first individual to leave, the use of public information can prevent the underutilization of resource patches.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4274  
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Author Forbes, A.B. openurl 
  Title A review of regional and temporal use of avermectins in cattle and horses worldwide Type Journal Article
  Year 1993 Publication Veterinary Parasitology Abbreviated Journal Vet Parasitol  
  Volume (down) 48 Issue 1-4 Pages 19-28  
  Keywords Animals; Anthelmintics/therapeutic use; Arthropods; Cattle; Cattle Diseases/drug therapy/*prevention & control; Ectoparasitic Infestations/drug therapy/prevention & control/veterinary; Horse Diseases/drug therapy/*prevention & control; Horses; Insecticides; Ivermectin/*analogs & derivatives/*therapeutic use; Nematode Infections/drug therapy/prevention & control/veterinary; Parasitic Diseases/drug therapy/prevention & control; *Parasitic Diseases, Animal  
  Abstract Ivermectin and abamectin are two members of the group of parasiticides known as the avermectins; ivermectin was first registered as an injectable treatment for cattle in 1981. Since then, abamectin has been registered for cattle and ivermectin for horses. The relative popularity of the avermectins amongst farmers and veterinarians can be attributed to their spectrum of activity, convenience, wide margin of safety and the improved health and performance of stock following their use. Patterns of use in grazing animals apply equally to the avermectins as to other antiparasitics, particularly anthelmintics; these are based on a knowledge of epidemiology integrated with practical management considerations. For cattle, programs are commonly aimed at control of abomasal nematodes of the genera Ostertagia and Haemonchus. Use of avermectins is largely strategic in cattle, treatments being favored at the end of the period of transmission of these parasites; this frequently coincides with housing, entry into a feedlot or movement to another pasture. Simultaneous control of important ectoparasites at this time is an added benefit. Prophylactic use of avermectins at pasture is primarily targeted at the young first season grazing animal. In horses, a bimonthly treatment schedule during the period of risk has proved effective in helping prevent adverse effects of the main target parasites, including large and small strongyles and stomach bots. These patterns of use can be applied to the evaluation of the potential for avermectin residues in feces to have impact on pasture ecology. The evidence presented suggests that any effects are temporally and spatially limited. After more than a decade of practical use, there is no indication that avermectins have had a significant impact on pasture ecology and the environment.  
  Address MERCK AgVet, Rahway, NJ 07065-0912  
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  ISSN 0304-4017 ISBN Medium  
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  Notes PMID:8346632 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2665  
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Author Kristiansen, K.K.; Kold, S.E. openurl 
  Title Multivariable analysis of factors influencing outcome of 2 treatment protocols in 128 cases of horses responding positively to intra-articular analgesia of the distal interphalangeal joint Type Journal Article
  Year 2007 Publication Equine Veterinary Journal Abbreviated Journal Equine Vet J  
  Volume (down) 39 Issue 2 Pages 150-156  
  Keywords Analgesia/methods/*veterinary; Anesthesia, Local/methods/veterinary; Animals; Anti-Inflammatory Agents/therapeutic use; Female; Foot Diseases/drug therapy/prevention & control/*veterinary; Glycosaminoglycans/therapeutic use; Horse Diseases/*drug therapy/prevention & control; Horses; Injections, Intra-Articular/*veterinary; Joint Diseases/drug therapy/prevention & control/veterinary; Lameness, Animal/drug therapy/prevention & control; Male; Methylprednisolone/analogs & derivatives/therapeutic use; Multivariate Analysis; Pain/prevention & control/veterinary; Retrospective Studies; Time Factors; *Toe Joint/drug effects/pathology; Treatment Outcome  
  Abstract REASONS FOR PERFORMING STUDY: There is limited knowledge available of factors influencing response to treatments of the DIP-joint in horses with lameness responding to diagnostic analgesia of the DIP-joint. For this reason a multivariable statistical analysis was performed. HYPOTHESIS: Horses with lameness reduced by > or = 75% 10 min after intra-articular analgesia of the DIP-joint, can be treated successfully by intra-articular medication of the joint. Multiple factors influence the response to treatment. METHODS: The study was performed retrospectively based on clinical records of horses treated with either polysulphated glycosaminoglycan (PSGAG) or methylprednisolone acetate (MPA) in the DIP-joint between January 1996 and January 2003. Information was collected from clinical records and from the owners of the horses via a detailed questionnaire, in which they described their perception of the outcome a minimum of one year after treatment. Allocation of the horses to the 2 treatment groups was done mainly because of a change in treatment policy. In Regime A all horses received 3 intra-articular injections of PSGAG approximately 8 days apart, whereas in Regime B all horses received a single intra-articular injection of MPA as a first treatment. If the horse did not improve sufficiently to return to work by 4 weeks, a series of 3 intra-articular PSGAG injections was administered. RESULTS: Of the horses receiving Regime A, 67% had a successful outcome, compared with 46% of the group receiving Regime B. A significantly better result was obtained in dressage horses than in jumping horses (eventing and showjumping). Other variables such as age, duration of lameness, distribution of lameness, degree of lameness, response to DIP-joint analgesia and radiographic observations were also associated with success of treatment. CONCLUSIONS AND POTENTIAL RELEVANCE: There is a rationale for using either PSGAG or MPA intra-articularly in the treatment of lameness, reduced > or = 75% within 10 min of analgesia of the DIP-joint.  
  Address Willesley Equine Clinic Ltd., Tetbury, Gloucestershire, GL8 8QU UK  
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  Series Volume Series Issue Edition  
  ISSN 0425-1644 ISBN Medium  
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  Notes PMID:17378444 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3707  
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Author Boden, L.A.; Anderson, G.A.; Charles, J.A.; Morgan, K.L.; Morton, J.M.; Parkin, T.D.H.; Slocombe, R.F.; Clarke, A.F. openurl 
  Title Risk of fatality and causes of death of Thoroughbred horses associated with racing in Victoria, Australia: 1989-2004 Type Journal Article
  Year 2006 Publication Equine Veterinary Journal Abbreviated Journal Equine Vet J  
  Volume (down) 38 Issue 4 Pages 312-318  
  Keywords Animals; Athletic Injuries/epidemiology/mortality/*veterinary; *Cause of Death; Female; *Floors and Floorcoverings; Horses/*injuries; Male; Physical Conditioning, Animal/*adverse effects; Risk Factors; Running/injuries; Safety; Sports; Victoria  
  Abstract REASONS FOR PERFORMING STUDY: Determining the risk of fatality of Thoroughbred horses while racing is essential to assess the impact of intervention measures designed to minimise such fatalities. OBJECTIVES: To measure the risk of racehorse fatality in jump and flat starts on racecourses in Victoria, Australia, over a 15 year period and to determine proportional mortality rates for specific causes of death. METHODS: All fatalities of Thoroughbred horses that occurred during or within 24 h of a race were identified from a database. The risk of a start resulting in a racehorse fatality in all races and within flat and jump races, proportional mortality rates, population attributable risk, population attributable fraction and risk ratios were calculated along with 95% confidence intervals. Poisson regression was also performed to estimate risk ratios. RESULTS: There were 514 fatalities over the 15 year period; 316 in flat races and 198 in jump races. The risk of fatality was 0.44 per 1000 flat starts and 8.3 per 1000 jump starts (18.9 x greater). The risk of fatality on city tracks was 1.1 per 1000 starts whereas on country tracks it was 0.57 per 1000 starts. Of the 316 fatalities in flat races, 73.4% were due to limb injury, 2.5% to cranial or vertebral injury and 19.0% were sudden deaths. Of the 198 fatalities in jump races, 68.7% were due to limb injury, 16.2% to cranial or vertebral injury and 3.5% were sudden deaths. The risk of fatality in flat starts increased between 1989 and 2004 but the risk in jump starts remained unchanged over the 15 year period. CONCLUSIONS: The risk of fatality in flat starts was lower in Victoria than North America and the UK but the risk in jump starts was greater. Catastrophic limb injury was the major reason for racehorse fatality in Victoria but there was a larger percentage of sudden deaths than has been reported overseas. The risk of fatality in jump starts remained constant over the study period despite jump racing reviews that recommended changes to hurdle and steeple races to improve safety. POTENTIAL RELEVANCE: This study provides important benchmarks for the racing industry to monitor racetrack fatalities and evaluate intervention strategies.  
  Address Department of Veterinary Science, The University of Melbourne, Werribee, Victoria, Australia  
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  ISSN 0425-1644 ISBN Medium  
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  Notes PMID:16866197 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3761  
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Author Zehnder, A.M.; Ramer, J.C.; Proudfoot, J.S. openurl 
  Title The use of altrenogest to control aggression in a male Grant's Zebra (Equus burchelli boehmi) Type Journal Article
  Year 2006 Publication Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians Abbreviated Journal J Zoo Wildl Med  
  Volume (down) 37 Issue 1 Pages 61-63  
  Keywords Aggression/*drug effects; Animals; Animals, Zoo; Behavior, Animal/*drug effects; Dose-Response Relationship, Drug; Equidae/*physiology; Female; Horses; Male; Treatment Outcome; Trenbolone/*analogs & derivatives/therapeutic use  
  Abstract A male Grant's Zebra (Equus burchelli boehmi) housed with two mares at the Indianapolis Zoo had a 9-yr history of intermittent aggressive behavior toward mares and other animals. Periods of separation allowed the mares time to heal after sustaining superficial bite wounds. On 26 March 2003, the male (890293) was started on altrenogest at a dosage of 19.8 mg orally once daily to allow reintroduction. The dosage was doubled (40 mg once a day) because of a perceived lack of response. Reintroduction to the mares occurred on 17 May 2003 with no signs of aggression noted. Treatment was reduced to 19.8 mg orally once a day and then discontinued. Altrenogest was restarted at 39.5 mg orally once a day because of the planned introduction of a new mare. There have been no major aggressive displays at this dosage of altrenogest and the dosage has recently been reduced following successful introduction of a new mare.  
  Address University of Florida, 2015 SW 16th Street, Gainesville, Florida 32610, USA  
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  ISSN 1042-7260 ISBN Medium  
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  Notes PMID:17312816 Approved no  
  Call Number Serial 1772  
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Author Kraak, S.B.M. url  doi
openurl 
  Title `Copying mate choice': Which phenomena deserve this term? Type Journal Article
  Year 1996 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume (down) 36 Issue 1 Pages 99-102  
  Keywords Copying mate choice; Proximate/ultimate causes  
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  Notes Approved no  
  Call Number Serial 1816  
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