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McGreevy, P.; Berger, J.; De Brauwere, N.; Doherty, O.; Harrison, A.; Fiedler, J.; Jones, C.; McDonnell, S.; McLean, A.; Nakonechny, L.; Nicol, C.; Preshaw, L.; Thomson, P.; Tzioumis, V.; Webster, J.; Wolfensohn, S.; Yeates, J.; Jones, B |
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Title |
Using the Five Domains Model to Assess the Adverse Impacts of Husbandry, Veterinary, and Equitation Interventions on Horse Welfare. |
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Journal Article |
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Year |
2018 |
Publication |
Animals |
Abbreviated Journal |
Animals |
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Volume |
8 |
Issue |
3 |
Pages |
41 |
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Keywords |
horse; welfare assessment; equitation; husbandry; five domains |
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The aim of this study was to conduct a series of paper-based exercises in order to assess the negative (adverse) welfare impacts, if any, of common interventions on domestic horses across a broad range of different contexts of equine care and training. An international panel (with professional expertise in psychology, equitation science, veterinary science, education, welfare, equestrian coaching, advocacy, and community engagement; n = 16) met over a four-day period to define and assess these interventions, using an adaptation of the domain-based assessment model. The interventions were considered within 14 contexts: C1 Weaning; C2 Diet; C3 Housing; C4 Foundation training; C5 Ill-health and veterinary interventions (chiefly medical); C6 Ill-health and veterinary interventions (chiefly surgical); C7 Elective procedures; C8 Care procedures; C9 Restraint for management procedures; C10 Road transport; C11 Activity—competition; C12 Activity—work; C13 Activity—breeding females; and C14 Activity—breeding males. Scores on a 1–10 scale for Domain 5 (the mental domain) gathered during the workshop were compared with overall impact scores on a 1–10 scale assigned by the same panellists individually before the workshop. The most severe (median and interquartile range, IQR) impacts within each context were identified during the workshop as: C1 abrupt, individual weaning (10 IQR 1); C2 feeding 100% low-energy concentrate (8 IQR 2.5); C3 indoor tie stalls with no social contact (9 IQR 1.5); C4 both (i) dropping horse with ropes (9 IQR 0.5) and forced flexion (9 IQR 0.5); C5 long-term curative medical treatments (8 IQR 3); C6 major deep intracavity surgery (8.5 IQR 1); C7 castration without veterinary supervision (10 IQR 1); C8 both (i) tongue ties (8 IQR 2.5) and (ii) restrictive nosebands (8 IQR 2.5); C9 ear twitch (8 IQR 1); C10 both (i) individual transport (7.00 IQR 1.5) and group transport with unfamiliar companions (7 IQR 1.5); C11 both (i) jumps racing (8 IQR 2.5) and Western performance (8 IQR 1.5); C12 carriage and haulage work (6 IQR 1.5); C13 wet nurse during transition between foals (7.5 IQR 3.75); and C14 teaser horse (7 IQR 8). Associations between pre-workshop and workshop scores were high, but some rankings changed after workshop participation, particularly relating to breeding practices. Domain 1 had the weakest association with Domain 5. The current article discusses the use of the domain-based model in equine welfare assessment, and offers a series of assumptions within each context that future users of the same approach may make when assessing animal welfare under the categories reported here. It also discusses some limitations in the framework that was used to apply the model. |
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Equine Behaviour @ team @ |
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6606 |
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Williams, D.O.; Boatwright, R.B.; Rugh, K.S.; Garner, H.E.; Griggs, D.M.J. |
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Title |
Myocardial blood flow, metabolism, and function with repeated brief coronary occlusions in conscious ponies |
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Journal Article |
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Year |
1991 |
Publication |
The American journal of physiology |
Abbreviated Journal |
Am J Physiol |
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260 |
Issue |
1 Pt 2 |
Pages |
H100-9 |
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Keywords |
Animals; Consciousness/*physiology; Coronary Circulation/*physiology; Coronary Disease/pathology/*physiopathology; Disease Models, Animal; Hemodynamic Processes/physiology; Horses/*physiology; Hydrogen/metabolism; Lactates/metabolism; Myocardium/*metabolism/pathology; Norepinephrine/metabolism; Potassium/metabolism; Regional Blood Flow |
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Studies were performed in the conscious pony instrumented with a Doppler flow probe and hydraulic occluder on the left anterior descending coronary artery (LAD), sonomicrometry crystals and intraventricular micromanometer in the left ventricle, and catheters in the left atrium and anterior interventricular vein. Two-minute LAD occlusions were performed every 30 min continuously or during working hours. Data on release of catabolites (potassium, hydrogen ions, and lactate) and norepinephrine from the initially dysfunctional region were obtained periodically during a regimen of 445 +/- 56 occlusions in six animals. Regional myocardial blood flow was measured (microsphere method) before and after an occlusion regimen in four animals. Marked release of catabolites and norepinephrine from the initially dysfunctional region was noted in association with early occlusions when myocardial segment function was severely reduced. With further occlusions, release of these substances decreased while segment function improved. Blood flow was markedly decreased in the initially dysfunctional region during an early occlusion but was at the control level during a later occlusion. Although the metabolic findings are consistent with protection due to “ischemic preconditioning” and no increase in collateral perfusion, the inverse relationship noted between catabolite release and segment function is best explained by flow-dependent mechanisms. These results, together with the myocardial blood flow data, serve to validate a previous assumption that protection against regional myocardial dysfunction under these conditions is due to increased collateral perfusion. |
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Department of Physiology, University of Missouri, Columbia 65212 |
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0002-9513 |
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PMID:1992786 |
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Call Number |
refbase @ user @ |
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98 |
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Lonon, A.M.; Zentall, T.R. |
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Title |
Transfer of value from S+ to S- in simultaneous discriminations in humans |
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Journal Article |
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Year |
1999 |
Publication |
The American journal of psychology |
Abbreviated Journal |
Am J Psychol |
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112 |
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1 |
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21-39 |
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Keywords |
Adolescent; Adult; Animals; Color Perception; Columbidae; Conditioning, Classical; *Discrimination Learning; Female; Humans; Male; Middle Aged; *Motivation; Orientation; Pattern Recognition, Visual; Psychomotor Performance; Reaction Time; *Transfer (Psychology) |
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When animals learn a simultaneous discrimination, some of the value of the positive stimulus (S+) appears to transfer to the negative stimulus (S-). The present experiments demonstrate that such value transfer can also be found in humans. In Experiment 1 humans were trained on 2 simple simultaneous discriminations, the first between a highly positive stimulus, A (1,000 points); and a negative stimulus, B (0 points); and the second between a less positive stimulus, C (100 points); and a negative stimulus, D (0 points). On test trials, most participants preferred B over D. In Experiments 2 and 3 the value of the 2 original discriminations was equated in training (A[100]B[0] and C[100]D[0]). In Experiment 2 the values of the positive stimuli were then altered (A[1,000]C[0]); again, most participants preferred B over D. In Experiment 3, however, when the values of B and D were altered (B[1,000]D[0]), participants were indifferent to A and C. Thus, the mechanism that underlies value transfer in humans appears to be related to Pavlovian second-order conditioning. Similar mechanisms may be involved in assimilation processes in social contexts. |
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University of Kentucky, USA |
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0002-9556 |
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PMID:10696277 |
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refbase @ user @ |
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249 |
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Hogan, D.E.; Zentall, T.R.; Pace, G. |
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Title |
Control of pigeons' matching-to-sample performance by differential sample response requirements |
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Journal Article |
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Year |
1983 |
Publication |
The American journal of psychology |
Abbreviated Journal |
Am J Psychol |
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96 |
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1 |
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37-49 |
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Animals; Association; *Color Perception; Columbidae; Cues; *Discrimination Learning; Reinforcement Schedule; Time Factors |
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Pigeons were trained on a matching-to-sample task in which sample hue and required sample-specific observing behavior provided redundant, relevant cues for correct choices. On trials that involved red and yellow hues as comparison stimuli, a fixed-ratio 16 schedule (FR 16) was required to illuminate the comparisons when the sample was red, and a differential-reinforcement-of-low-rates 3-sec schedule (DRL 3-sec) was required when the sample was yellow. On trials involving blue and green hues as comparison stimuli, an FR 16 schedule was required when the sample was blue and a DRL 3-sec schedule was required when the sample was green. For some pigeons, a 0-sec delay intervened between sample offset and comparison onset, whereas other pigeons experienced a random mixture of 0-sec and 2-sec delay trials. Test trial performance at 0-sec delay indicated that sample-specific behavior controlled choice performance considerably more than sample hue did. Test performance was independent of whether original training involved all 0-sec delay trials or a mixture of 0-sec and 2-sec delays. Sample-specific observing response requirements appear to facilitate pigeons' matching-to-sample performance by strengthening associations between the observing response and correct choice. |
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0002-9556 |
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PMID:6859346 |
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refbase @ user @ |
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265 |
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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. |
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Weight, water, and cation losses in horses competing in a three-day event |
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Journal Article |
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1994 |
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Journal of the American Veterinary Medical Association |
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J Am Vet Med Assoc |
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205 |
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5 |
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721-724 |
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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 |
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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. |
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Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville 37901-1071 |
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0003-1488 |
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PMID:7989242 |
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no |
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Equine Behaviour @ team @ |
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3745 |
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Author |
Whitehead, H. |
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Title |
Precision and power in the analysis of social structure using associations |
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Journal Article |
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2008 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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75 |
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3 |
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1093-1099 |
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association; precision; social structure; statistical power |
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I develop guidelines for assessing the precision and power of statistical techniques that are frequently used to study nonhuman social systems using observed dyadic associations. Association indexes estimate the proportion of time that two individuals are associated. Binomial approximation and nonparametric bootstrap methods produce similar estimates of the precision of association indexes. For a mid-range (0.4-0.9) association index to have a standard error of less than 0.1 requires about 15 observations of the pair associated, and for it to be less than 0.05, this rises to 50 observations. The coefficient of variation among dyads of the proportion of time that pairs of individuals are actually associated describes social differentiation (S), and this may be estimated from association data using maximum likelihood. With a poorly differentiated population (S~0.2), a data set needs about five observed associations per dyad to achieve a correlation between true and estimated association indexes of r=~0.4. It requires about 10 times as much data to achieve a representation with r=~0.8. Permutation tests usually reject the null hypothesis that individuals have no preferred associates when S2H>5, where H is the mean number of observed associations per individual. Thus most situations require substantial numbers of observations of associations to give useful portrayals of social systems, and sparse association data inform only when social differentiation is high. |
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0003-3472 |
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Equine Behaviour @ team @ |
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4692 |
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Author |
Pichardo, M. |
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Title |
Valsequillo biostratigraphy. III: Equid ecospecies in Paleoindian sites |
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Journal Article |
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2000 |
Publication |
Anthropologischer Anzeiger; Bericht Uber die Biologisch-Anthropologische Literatur |
Abbreviated Journal |
Anthropol Anz |
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58 |
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3 |
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275-298 |
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Animals; *Ecology; Horses/*classification; Mexico; *Paleodontology; Species Specificity |
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Greater precision in North American Pleistocene equid taxonomy makes it now possible to exploit the ubiquitous horse remains in Paleoindian sites as ecological index-fossils. The horses of Central Mexico and the Southern Plains can be sorted by tooth size alone, except for two rare large horses of the Southern Plains. The species endemic to these grasslands and south to Central Mexico are Equus pacificus (large), E. conversidens (small), E. francisci (smallest). The Southern Plains were also occupied by a specialized grazer E. excelsus (Burnet and Sandia caves) and E. occidentalis (Dry and Sandia caves). West of the Rocky Mountains E. occidentalis was dominant. East of the Mississippi River two woodland species are found: E. fraternus and E. littoralis. |
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0003-5548 |
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PMID:11082786 |
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Equine Behaviour @ team @ |
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2648 |
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Author |
Alexander, F. |
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Title |
The effect of diuretics on the faecal excretion of water and electrolytes in horses |
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Journal Article |
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Year |
1977 |
Publication |
British journal of pharmacology |
Abbreviated Journal |
Br J Pharmacol |
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60 |
Issue |
4 |
Pages |
589-593 |
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Keywords |
Animals; Body Water/*metabolism; Chlorides/metabolism; Electrolytes/*metabolism; Feces/*analysis; Furosemide/*pharmacology; Horses; Hydrochlorothiazide/*pharmacology; Male; Potassium/metabolism; Sodium/metabolism; Time Factors |
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1. The effect on plasma, urinary and faecal electrolytes of frusemide and hydrochlorthiazide was measured in ponies, mean weight 180 kg. 2. The rapid loss in urine of large quantities of sodium had only a small effect on plasma sodium concentration. 3. Faecal sodium excretion was increased substantially after the administration of frusemide. 4. Frusemide increased faecal potassium during the 48 h following administration and faecal water in the 24/48 h period. It also produced a hypopotassaemia. 5. Hydrochlorthiazide increased faecal chloride during the 24 h after administration. 6. Frusemide increased the intestinal transit time of both liquid (polyethylene glycol) and particulate (Cr2O3) markers. |
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0007-1188 |
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PMID:907872 |
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Call Number |
refbase @ user @ |
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111 |
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Author |
Alexander, F.; Davies, M.E. |
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Title |
Studies on vitamin B12 in the horse |
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Journal Article |
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Year |
1969 |
Publication |
The British veterinary journal |
Abbreviated Journal |
Br. Vet. J. |
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125 |
Issue |
4 |
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169-176 |
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Animals; Biological Assay; Cattle; Chickens; Feces/analysis; Horses/*metabolism; Humans; Lactobacillus/metabolism; Rabbits; Rats; Sheep; Urine/analysis; Vitamin B 12/*analysis |
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0007-1935 |
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PMID:5814055 |
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refbase @ user @ |
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116 |
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Author |
Dorzh, C.; Minar, J. |
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Title |
Warble flies of the families Oestridae and Gasterophilidae (Diptera) found in the Mongolian People's Republic |
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Journal Article |
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Year |
1971 |
Publication |
Folia Parasitologica |
Abbreviated Journal |
Folia Parasitol (Praha) |
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18 |
Issue |
2 |
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161-164 |
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Animals; Deer; Diptera/*classification; Duodenum; Ecology; Ectoparasitic Infestations/*veterinary; Goats; Horses; Larva; Mongolia; Nasal Mucosa; Nasopharynx; Pharynx; Sheep |
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0015-5683 |
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PMID:5163213 |
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no |
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Call Number |
Equine Behaviour @ team @ |
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2731 |
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