PERFORMANCE OF MORGAN HORSES UNDER SADDLE 25 
Length of stride was not associated significantly with sex, sire, dam, 
year, or rider. 
Horses with the best scores for performance at the walk and ease of 
walk to rider had the longest average strides. Although statistically 
significant differences were found between the average length of 
stride at the walk for horses with different scores for temperament, 
there seemed to be no obvious reason why this relationship exists as 
judged by the average scores. It may be due to the fact that the 
temperament score was based on several factors including activity, 
ease of handling, and viciousness or it may be that the differences are 
only a chance relationship. Heart girth and slope of croup were some- 
what associated with length of stride at the walk but the differences 
were not significant (table 16). Horses with medium heart girth 
and medium slope of croup had the longest average strides. 
TABLE 16.—Association of heart girth and slope of croup with length of 
stride at the walk and analyses of variance 
AVERAGE PERFORMANCE 
Average Average 
. length of| Score for slope of length of 
Heart girth (cm.) Horses at dent Crone Horses aire ing 
walk walk 
Number Feet Number Feet 
hOS—165 2. ee 3 5. 3 3 2 5V3 
IGO-l68s 252 ae 4 5. 5 a 4 5. 4 
N69S17 1s sae Se 8 5. 3 5 iL ie) 
Ay EA fs Samer te et 10 4 6 21 5. 4 
Ol 22a eee 19 Bets) 7 15 5. 4 
(8-180) = ee 11 5. 4 8 6 5. 0 
StS SSeS ee 5 Ey eek Y Be a 0 os ORE | PRs ney SER aR ee 
18486252 3) Sees s 3 RG 74 gies Per A Sees ase eee | aha eco ae | Eas 6) Bs 1 
Total or average- 63 Gs ae Pepe ete ee 63 5. 3 
ANALYSES OF VARIANCE 
Degrees Degrees ) 
Source of variance | of free- ae Source of variance | of free- Scud 
dom dom 
Between heart girth 7 0.21 | Between slope of 5 0. 24 
croup. 
Within heart girth___ 55 .10 | Within slope of 57 alla 
croup. 
otal Ae ees G25, | Seana yes) OSE GEES URE O81 62: |5 2 dae 
11=steep—, 2=steep, 3=steep+, 4=medium slope—, 5=medium slope, 
6=medium slope+, 7=level—, 8=level, 9=level+. 
