67
SUMMARY OF CORPUSCULAR CHANGES IN THE BLOOD OF BOVINES AND BUFFALOES.
The changes observed with regard to the number of red, white and coarsely granular
oxyphile cells in the blood, when Surra was transmitted by inoculation, are as follows :—
Red Corpuscles.
An increase in the number of red corpuscles occurred in the latent period, equal to
6.2 per cent. in the Bull, and 4 and 2 per cent., respectively, in the Buffaloes. During the
paroxysms there was a decrease of 5.3 in the former animal, and 13.6 and 5.8 per cent.,
respectively, in the latter animals. A further slight decrease occurred in the intermissions,
most marked in the Bull.
TABLE LXVI.
Showing the percentages of Red Corpuscles, taken on the mean daily number in the blood of
the Bull and Buffaloes, during different periods of observation and disease (Surra).
PERIODS.
Observation
Latent Period
Paroxysms
Intermissions
Whole Period
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Length in
days.
72
6
8
15
101
Bull No. V.
100.0
106.2
94.7
92.9
98.6
Length in
days.
14
5
39
81
139
Buffalo No. I.
100.0
104.0
86.4
85.4
93.9
Length in
days.
33
5
15
31
84
Buffalo No. II.
100.0
102.0
94.2
93.5
96.6
White Corpuscles.
An increase of 23.3 per cent. in the number of white corpuscles took place during the
period of incubation in Bull V. In Buffalo I there was a decrease of 5.9, but in Buffalo II
an increase of 36.4 per cent. occurred. During the paroxysms a slight increase, compared
with that observed during the periods of observation, was registered in the case of the Bull and
Buffalo I, but in the third animal the white corpuscles were augmented to the extent of 79.6
per cent.
The Bull during the absence of the hæmatozoon from the circulation (intermissions)
regained some of its lost ground; for the massed periods show a decrease of 9.9 per cent. in the
number of white corpuscles present compared with the observation period. The Buffaloes, on the
other hand, showed an increase of 13.5 and 84.8 per cent., respectively. The length of
paroxysms, compared with the intermissions in the case of the Bull, was as 1 : 1.87, and in the
Buffaloes as 1: 2.07 and 1: 2.06, respectively.
TABLE LXVII.
Showing the percentages of White Corpuscles, taken on the mean daily number in the blood
of the Bull and Buffaloes, during different periods of observation and disease (Surra).
PERIODS.
Observation
Latent Period
Paroxysms
Intermissions
Whole Period
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Length in
days.
72
6
8
15
101
Bull No. V.
100.0
123.3
108.5
90.1
105.5
Length in
days.
14
5
39
81
139
Buffalo No. I.
100.0
94.1
103.2
113.5
102.7
Length in
days.
33
5
15
31
84
Buffalo No. II.
100.0
136.4
179.6
184.8
147.2
Coarsely Granular Oxyphile Cells (Eosineophile Corpuscles).
In the case of the Bull an increase of 45.6 per cent. took place during the latent period,
but in the Buffaloes the augmentation was only 8.1 and 4.2 per cent., respectively. During the
paroxysms and intermissions the numbers decreased in the Bull, increased in Buffalo I, until
the numbers in the intermission were double those of the period of observation, while in the
third animal there was a well-marked fall in the percentage of corpuscles during the paroxysms,
and a gain of 10 per cent. in the intervals.
K 2