Equine feeding side preference – incidence and age effect

2004 ◽  
Vol 32 ◽  
pp. 223-225
Author(s):  
S H Bottom ◽  
H Owen ◽  
R E Lawson ◽  
P A Harris ◽  
S Hall
Keyword(s):  
Food Preference ◽  
Age Groups ◽  
Age Effect ◽  
Preference Testing ◽  
Choice Preference ◽  
Taste Response ◽  
Minute Period ◽  
Side Preference ◽  
Left And Right

Two choice preference testing is used in animals to determine food preference or taste response (Nicol, 1997). This relies upon selection from a theoretical mean of 0.5, if no preference is shown. The aims of this study were two fold: to measure the incidence of side preference in the horse when given the choice of two identical feeds; and to assess the influence of age on side preference.18 TB x horses were used in this study. Six horses were allocated to each of the age groups; young (2-4 years), middle (8-14 years) and old (over 16 years). All horses were housed in stables of identical design. 1.5kg DM of basal feed was offered in two containers, positioned left and right, for a ten–minute period over nine days. All spillages were collected and recorded. Intake was calculated as the (amount of feed offered – amount of feed remaining – 0.5x the Spillage).

scholarly journals The Influence of Relative Age Effects on the Cardiorespiratory Fitness Levels of Children Age 9 to 10 and 11 to 12 Years of Age

2012 ◽  
Vol 24 (1) ◽  
pp. 72-83 ◽  
Author(s):  
Simon J. Roberts ◽  
Lynne M. Boddy ◽  
Stuart J. Fairclough ◽  
Gareth Stratton
Keyword(s):  
Cardiorespiratory Fitness ◽  
Age Groups ◽  
Age Effect ◽  
Age Effects ◽  
Fitness Testing ◽  
Public Health Perspective ◽  
Cross Sectional ◽  
Relative Age ◽  
Relative Age Effect ◽  
First Time

The aims of this study were firstly to examine whether there was an observed relative age effect in the cardiorespiratory fitness scores of 9-10 and 11-12 year old children, and secondly whether any observed effect was maintained after controlling for somatic maturity. Cardiorespiratory fitness data from 11,404 children aged 9-10 years and 3,911 children aged 11-12 years were obtained from a large cross-sectional field-based fitness testing program. A one-way ANOVA revealed a statistically significant relative age effect (p < .01) existed in the 20mSRT scores across all the age groups. Furthermore, ANCOVA analyses identified a statistically significant relative age effect was maintained after controlling for somatic maturation (p < .05). From a public health perspective these results confirm the existence of relative age effects for the first time and consequently may hold implications for relatively younger children in the accurate assessment of their cardiorespiratory fitness scores.

scholarly journals Standard reference values of weight and maximum pressure distribution in healthy adults aged 18–65 years in Germany

2020 ◽  
Vol 39 (1) ◽  
Author(s):  
D. Ohlendorf ◽  
K. Kerth ◽  
W. Osiander ◽  
F. Holzgreve ◽  
L. Fraeulin ◽  
...  
Keyword(s):  
Body Weight ◽  
Pressure Distribution ◽  
Reference Values ◽  
Effect Size ◽  
Weight Distribution ◽  
Age Groups ◽  
Healthy Adults ◽  
The Body ◽  
Maximum Pressure ◽  
Left And Right

Abstract Background The aim of this study was to collect standard reference values of the weight and the maximum pressure distribution in healthy adults aged 18–65 years and to investigate the influence of constitutional parameters on it. Methods A total of 416 healthy subjects (208 male / 208 female) aged between 18 and 65 years (Ø 38.3 ± 14.1 years) participated in this study, conducted 2015–2019 in Heidelberg. The age-specific evaluation is based on 4 age groups (G1, 18–30 years; G2, 31–40 years; G3, 41–50 years; G4, 51–65 years). A pressure measuring plate FDM-S (Zebris/Isny/Germany) was used to collect body weight distribution and maximum pressure distribution of the right and left foot and left and right forefoot/rearfoot, respectively. Results Body weight distribution of the left (50.07%) and right (50.12%) foot was balanced. There was higher load on the rearfoot (left 54.14%; right 55.09%) than on the forefoot (left 45.49%; right 44.26%). The pressure in the rearfoot was higher than in the forefoot (rearfoot left 9.60 N/cm2, rearfoot right 9.51 N/cm2/forefoot left 8.23 N/cm2, forefoot right 8.59 N/cm2). With increasing age, the load in the left foot shifted from the rearfoot to the forefoot as well as the maximum pressure (p ≤ 0.02 and 0.03; poor effect size). With increasing BMI, the body weight shifted to the left and right rearfoot (p ≤ 0.001, poor effect size). As BMI increased, so did the maximum pressure in all areas (p ≤ 0.001 and 0.03, weak to moderate effect size). There were significant differences in weight and maximum pressure distribution in the forefoot and rearfoot in the different age groups, especially between younger (18–40 years) and older (41–65 years) subjects. Discussion Healthy individuals aged from 18 to 65 years were found to have a balanced weight distribution in an aspect ratio, with a 20% greater load of the rearfoot. Age and BMI were found to be influencing factors of the weight and maximum pressure distribution, especially between younger and elder subjects. The collected standard reference values allow comparisons with other studies and can serve as a guideline in clinical practice and scientific studies.

The Effect of Judgment Context on Assessments of Age Groups

1989 ◽  
Vol 8 (3) ◽  
pp. 244-254 ◽  
Author(s):  
V. J. Knox ◽  
W.L. Gekoski
Keyword(s):  
Age Groups ◽  
Semantic Differential ◽  
Age Effect ◽  
Comparative Judgment ◽  
Three Dimensions ◽  
Age Group ◽  
Middle Aged ◽  
Evaluative Dimension ◽  
Judgment Condition

ABSTRACTIt has been suggested that an exaggeration of the target age effect is obtained when the same respondents judge multiple age groups rather than only one age group. In the present study each of 1200 undergraduates rated a young, middle-aged, or old target on the 32 bipolar adjective pairs of the Aging Semantic Differential (ASD; Rosencranz & McNevin, 1969). An additional 200 undergraduates rated all three target age groups on the ASD. The ASD was scored in terms of the three dimensions reported by its authors. In the isolated judgment condition young targets were rated highest on the Instrumental-Ineffective and Personal Acceptability-Unacceptability dimensions followed, in both cases, by middle-aged and then by old targets; on the Autonomous-Dependent dimension, middle-aged targets were rated higher than both young and old targets. The hypothesized exaggeration of the target age effect in the comparative judgment condition was obtained for the descriptive dimensions (Instrumental-Ineffective and Autonomous-Dependent) but not for the evaluative dimension (Personal Acceptability-Unacceptability) of the ASD. Possible explanations for why judgment context might affect descriptive but not evaluative assessments of target age groups are discussed.

scholarly journals Skull asymmetries in wild boar (Sus scrofa LINNAEUS, 1758)

2019 ◽  
Vol 56 (1) ◽  
pp. e150704
Author(s):  
Pere M. Parés-Casanova
Keyword(s):  
Environmental Factors ◽  
Wild Boar ◽  
Sus Scrofa ◽  
Age Groups ◽  
The Other ◽  
Directional Asymmetry ◽  
Two Dimensional ◽  
Entire Sample ◽  
Perfect Symmetry ◽  
Left And Right

Organisms can develop different kinds of asymmetry when deviations from expected perfect symmetry occur. Among others are fluctuating asymmetry (FA) and directional asymmetry (DA). FA represents small random differences between corresponding parts on the left and right sides of an individual in bilaterally paired structures. It is thought that FA reflects an organism’s ability to cope with genetic and environmental stress during growth. DA occurs whenever one side on the plane of symmetry develops more than the other side, and has a genetic component. In this research, we examined the expression of morphological symmetry in 38 skulls of different age groups of wild boar (Sus scrofa), on their ventral aspect, using two-dimensional coordinates of 27 landmarks. Analyses showed the presence of significant FA and DA in the entire sample, detecting also distinctive differences between age groups. The obtained results show that the shape differences in different age groups could reasonably be a consequence of a response to environmental factors for FA and a masticatory lateralization for DA.

scholarly journals Palm Creases Analysis in Students and Staff of a Teaching Hospital in Kathmandu

2019 ◽  
Vol 18 (1) ◽  
pp. 51-58
Author(s):  
Nirju Ranjit ◽  
Bidur Adhikari ◽  
Rajani Shrestha ◽  
Anusuya Shrestha ◽  
Rosha Bhandari ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Age Groups ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Closed Type ◽  
Long Time ◽  
Left And Right ◽  
Palm Print ◽  
The Individual

Introduction: Palm creases have been studied for a long time and have been recently found to be helpful in tracking underlying medical and genetic conditions. Scientific study and typing of palm prints have been found to be lacking in the Nepalese population Methods: A cross sectional study was done on 252 subjects, 153 male and 99 females, from Kathmandu, Nepal. Subjects were selected by purposive sampling from different age groups. Demographic profile including age, sex, and handedness was collected. Palm print pattern was recorded by digital photography. Each photograph was analysed visually by single observer and pattern of palm crease was noted. Variation of each crease was also noted. Results: On the basis of relation between radial longitudinal crease and proximal transverse crease, 17.3% subjects had open type of palm crease which was significantly more in females while 76.6% subjects had closed type crease which was significantly more in males. Meeting type of palm crease was found in 5.7% of subjects. On the basis of relation between proximal and distal transverse crease, normal crease type was found in 90.1% of subjects, Simian type was found in 7.7% subjects and Sydney type was found in 1.4% of subjects. The concordance of this pattern in left and right palms was found statistically significant. Conclusions: This study presented data from 252 seemingly normal healthy subjects and found that most of them had the normal with no branching, that is normal 1 and closed crease types. Most of the individual major creases were seen to be branched type.  

scholarly journals P0316RELATION OF RENAL ULTRASONOGRAPHIC MEASUREMENTS WITH BODY HEIGHT

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Adrijana Spasovska Vasilova ◽  
Lada Trajcheska ◽  
Mimoza Milenkova ◽  
Aleksandra Canevska ◽  
Angela Kabova ◽  
...  
Keyword(s):  
Pearson Correlation ◽  
Body Height ◽  
Age Groups ◽  
Healthy Individuals ◽  
Kidney Size ◽  
Equal Distribution ◽  
Kidney Length ◽  
Significant Difference ◽  
Left And Right ◽  
The Mean

Abstract Background and Aims Kidney size has been found to be correlated with anthropometric features and is different among different ethnicities. In this study, we used ultrasonography for measurement of kidney volumes in healthy individuals and evaluated the relationships with body height, age and gender. Method We conducted a cross-sectional observational study and evaluated 108 healthy individuals whose serum creatinine level was within reference range. Patients’ medical clinical and laboratory records were reviewed. Age, gender and height were recorded. Pearson correlation coefficients were used to evaluate the strength of association between ultrasonographic parameters with each other and with other parameters, and were expressed as r2. Variations in left and right renal dimensions between various age groups were compared using a one-way analysis of variance, followed by a post-hoc Tukey's test. Results Subjects’ age ranged from 16 to 84 years and the mean age was over 50 years. There was an equal distribution among genders. Strong and positive correlations were seen for the measured length, parenchyma thickness and also for both total and parenchymal volumes with subjects’ height for both kidneys. The strongest correlations were observed for the left and right kidney length and also for the right kidney parenchymal volume (r=0.536, p=0.001; r=0.469, p=0.001; r=0.44, p=0.001). On the opposite, most of the relations with age were negative, but week and insignificant. When we divided the study subjects into three age groups and compared them for the height, there was no significant difference among them. Regarding the parenchymal and total kidney volumes of both kidneys, the different age groups showed similar findings in the ultrasonographic measurements. The mean calculated volumes were slightly declining with age and showed the largest values in the first group of patients under 30 years and lowest values in patients over 70 years old. Ultrasonographic measurements were also compared among the two genders. Both (men and women) showed similar age (53.55 ± 18.22 vs. 50.79 ± 18.13 p= 0.430, respectively). As for the height, men were significantly taller than women (1.734 ± 0.007 vs.1.637 ± 0.005, p= 0.001). The kidney length, volume and parenchymal volumes of both kidneys were significantly larger in men. Conclusion Renal length and volume are strongly correlated with body height. This relation must be considered in clinical decisions on further investigations regarding kidney disease progression.

scholarly journals Surgical outcomes of endoscopic dacryocystorhinostomy: analysis of age effect

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jae Yun Sung ◽  
Yeon Hee Lee ◽  
Kyoung Nam Kim ◽  
Tae Seen Kang ◽  
Sung Bok Lee
Keyword(s):  
Success Rate ◽  
Age Groups ◽  
Nasolacrimal Duct ◽  
Age Effect ◽  
Adult Patients ◽  
Comorbid Conditions ◽  
Endoscopic Dacryocystorhinostomy ◽  
Average Value ◽  
Group 2 ◽  
Anatomical Success

AbstractThere is limited evidence in literature determining age effect on outcomes of endoscopic dacryocystorhinostomy (EDCR) in adult patients with primary acquired nasolacrimal duct obstruction (NLDO). We aimed to analyze the outcomes of EDCR according to age in primary acquired NLDO. A retrospective study was performed on consecutive adult patients and patients were divided into two age groups; group 1 (aged to 61 years) and group 2 (aged 62 to 89 years) based on the average value. The minimum required follow-up period was 6 months. A total of 441 EDCRs performed in 342 patients were enrolled. The anatomical success rate was not significantly different between the two groups (91.8% and 88.2%, P = 0.209). However, the functional success rate was significantly lower in the group 2 (85.1% and 76.9%; P = 0.036). Functional failure was associated with old age and a history of diabetes mellitus (P  = 0.024 and P  = 0.008). In subgroup analysis of patients with anatomical success but functionally failed EDCR, group 2 had significantly more comorbid conditions such as eyelid laxity (P = 0.026). In conclusion, the comorbid conditions which increase with age may affect functional outcome, especially eyelid laxity, careful preoperative examination of the eyelid and conjunctiva should be emphasized to lacrimal surgeons before performing EDCR.

scholarly journals Non-literal speech comprehension in preschool children – an example from a study on verbal irony

2013 ◽  
Vol 17 (3) ◽  
pp. 309-324 ◽  
Author(s):  
Natalia Banasik
Keyword(s):  
Preschool Children ◽  
Theory Of Mind ◽  
Developmental Trajectories ◽  
Age Groups ◽  
Age Effect ◽  
Speech Comprehension ◽  
Early Theory ◽  
Verbal Irony ◽  
Comprehension Task ◽  
Children's Narratives

Abstract The study aims to answer questions about the developmental trajectories of irony comprehension. The research focuses on the problem of the age at which ironic utterances can first be understood. The link between ironic utterance comprehension and early Theory of Mind (ToM) is examined as well. In order to approach the topic, 46 preschool children were tested with the Irony Comprehension Task (Banasik & Bokus, 2013) and the Reflection on Thinking Test (Białecka-Pikul, 2012) in three age groups: four-year-olds, five-year-olds and six-year-olds. The study showed no age effect in the Irony Comprehension Task and a significant effect in the Reflection on Thinking Test. On some of the measures, irony comprehension correlates with theory of mind. Also, an analysis of children’s narratives was conducted to observe how children explain the intention of the speaker who uttered the ironic statement. The children’s responses fall into four categories, one of which involves a function similar to a white lie being ascribed to the utterance.

Effects of Three Experimental Conditions on Preschool Children's Ability to Coordinate Visual Perspectives

1983 ◽  
Vol 56 (2) ◽  
pp. 675-678 ◽  
Author(s):  
Dominic F. Gullo ◽  
Carol Bersani
Keyword(s):  
Visual Cues ◽  
Age Groups ◽  
Age Effect ◽  
Object Identification ◽  
Age Effects ◽  
The Other ◽  
Cognitive Demands ◽  
Experimental Conditions

60 3-, 4-, and 5-yr.-old children were asked to coordinate visual perspectives in three conditions: (1) Piaget and Inhelder's “Three Mountain Task,” (2) identify objects a doll could see against the side of two intersecting walls, and (3) choose a picture which represented which objects the doll could see. Both condition and age effects were significant. For all age groups there were significant differences between the “Three Mountain Task” and the other two tasks, with significantly more children responding correctly on the two object-identification conditions. No significant differences between the two object-identification conditions were found. While 5-yr.-olds performed significantly better on both object-identification conditions, no differences were found between the 3- and 4-yr.-olds on these tasks. No age effect was found on the “Three Mountain Task.” Children of all groups found this task too difficult. 3-, 4-, and 5-yr.-olds seem better at coordinating visual perspectives than suggested earlier. Greater success on present tasks may be due to the reduced number of visual cues that represented alternate visual perspectives. Differences in cognitive demands of each condition were analyzed.

Sign in / Sign up

Export Citation Format

Share Document