17
HORSE XCII. Table I showing the mean daily averages, with ratios in health and disease
(Surra), of the Urine and its constituents, &c.
Periods.
Days.
Urine
Ratio
Urea
Ratio
Hippuric Acid
Ratio
Urea
Ratio ... { to
Urine
*Albumen
Quantity.
c.c.
Grammes ...
Grammes ...
}1:
Grammes ...
Health.
0
1,489
1
17.68
1
7.88
1
84.26
0.086
Latent
Period.
6
1,271
0.85
23.25
1.32
12.22
1.55
54.66
0.070
Parox
I.
1
1,560
1.04
46.80
2.64
10.92
1.38
33.33
...
Interm.
I.
1
1,280
0.86
42.88
2.42
0.00
0
29.85
...
Parox.
II.
8
1,387
0.93
47.85
2.76
0.26
0.03
28.99
0.599
Interm
II.
2
2,275
1.53
100.52
5.68
0.00
0
22.63
0.084
Parox.
III.
6
2,233
1.50
73.05
4.13
4.18
0.53
30.57
0.297
Interm.
III.
2
2,200
1.47
81.24
4.59
2.20
0.28
27.08
...
Parox.
IV.
3
1,740
1.16
63.79
3.60
0.00
0
27.31
0.202
Interm.
IV,
1
1,540
1.03
72.92
4.12
0.00
0
21.12
0.086
Purox.
V.
10
1,441
0.97
66.80
3.77
0.15
0.01
21.57
3.456
*Total quantity for each period.
Horse No. XCIII.
Bay Australian gelding, aged 7 years. Height 15 hands. Body weight 780 lbs.
This experiment was undertaken with a view to determine the class of disease, when
communicated from a dog suffering from naturally acquired Surra.
Daily observations were made regarding the output of urine, urea, and the amount of
water drunk.
The following are a few of the most important points observed: —
Urine.—The average quantity (2,490 c.c.) passed daily in health was only about one
half the normal output for English horses at rest (F. W. Smith); this increased during the
latent period to an average of 2,989 c.c. A marked increase occurred during the six
paroxysms, lasting 20 days, in the course of the disease; in the first, the daily average was
4,525 c.c., and in the sixth and last 9,123 c.c., giving a mean throughout of 7,452 c.c., 2.99
times the quantity in health. In the six intermissions lasting 15 days, the daily average
was 5492 c.c., this being 2.18 times as much as in health.
Urea.—As in the urine, the amount of urea during the periods of health and incubation
was only ½ the normal output in English horses, In the paroxysms it was 99.82 grammes
or over double that of the health period; this amount, however, is only equivalent to the
average output in England (F. W. Smith). In the intermissions the output of 68.98 gram-
mes was only 7/10ths of the paroxysmal quantity.
Hippuric Acid.—A small quantity of hippuric acid was passed during the latent period,
and a trace during the second paroxysm : for the remainder of the disease none was passed.
Albumen.—No albumen was present in the urine during health, but a trace appeared
in the latent period, and at intervals during the remainder of the case; a total of 3.364
grammes being excreted.
DOG SURRA—UNTREATED.
HORSE XCIII. Table II showing the mean daily averages, with ratios in health and disease
(Surra), of the urine and its constituents.
Periods.
Days.
Urine...
Ratio
Urea
Ratio
Hippuric Acid
Ratio
Water
Ratio
{Urea
Ratio ...{Urine ...
{ Urine ...
Water ...
Albumen
Quantities.
c.c.
Grammes...
Grammes...
Litres
}
Grammes...
Health.
10
2,490
1
46.64
1
3.48
1
17.80
1
1: 53.38
1: 7.14
...
Latent
Period.
9
2,989
1.20
44.24
0.94
3.48
1
18.55
1.04
1: 67.5
1 : 6.20
0.150
P 1
2
4,525
1.81
51.61
1.10
0.00
0
21.23
1.19
1: 87.70
1: 4.69
I 1
3
40.93
1.64
77.88
1.66
0.00
0
18.75
1.05
l: 52.60
1 : 4.58
0.188
P 2
2
4,315
1.75
20.05
0.43
2.79
0.80
20.66
1.16
1:215.2
1: 4.79
0.170
I 2
3
6,280
2.68
87.74
1.88
0
0
19.63
1.02
1: 71.60
1 : 3.12
0.830
P 3
5
6,860
2.73
88.91
1.90
0
0
17.87
1.00
1 : 77.20
1 : 2.61
...
I 3
2
5,700
2.28
33.05
0 .70
0
0
23.22
1.30
1:172.50
1: 4.08
P 4
2
8,720
3.50
88.15
1.88
0
0
20.92
1.67
1:98.90
1: 3.43
...
I 4
3
5,443
2.18
63.58
1.36
0
0
20.90
1.17
1: 85.80
1: 3.83
P 5
2
7,885
3.16
128.22
2.74
0
0
18.52
1.04
1 : 61.50
1: 2.34
...
I 5
3
5,800
2.54
71.87
1.54
0
0
22.60
1.27
1: 80.70
1: 4 30
...
P 6
7
9,123
3.66
139.39
2.98
0
0
20.83
1.17
1 : 65.40
1 : 2.28
1.729
I 6
1
5,150
2.06
65.40
1.40
0
0
6.84
0.38
1: 78.70
1: 1.32
0.288
B563-5