CROSS-BREEDING FOR MILK                        327

The chief causes of death are :—

Johnes disease

.

.

.

.

.

.

.

6

Pneumonia

.

.

.

.

.

.

.

21

Rinderpest reaction

.

.

.

.

.

.

.

18 (including calves used as controls).

Enteritis,etc.

.

.

.

.

.

.

.

19

Blackquarter

.

.

.

.

.

.

.

5

Pyroplasmosis .

.

.

.

.

.

.

.

4

                                          Growth of calves.

The calves of the second, third, etc., generations in most cases do not grow so
well as the F. 1 calves; this, no doubt, is partly due to hand-feeding which is done
by the coolies and the Dairy Manager has not the time to continually supervise
the feeding of all these calves. Feeding of milk at wrong temperature whilst
young, is very apt to cause scouring, etc., and this lowers the calves' constitution
and they take a long time to recover condition. In many instances at Hosur,
ringworm breaks out and this retards the animals' growth.

                                 Present strength of the herd.

Several cows which were bad or irregular breeders and milkers have been sold,
adult balls in most cases have been used for work purposes and a large number of
bull calves have been sold as they were not required. The total strength of the
herd at present is:—

Generation

Cows
and
heifers

Breeding
bulls and
young bulls

Heifer
calves

Bull
calves

Total

F.1 .

....

6

2

..

..

8

F. 2 .

....

5

4

1

..

10

F. 3 .

....

17

3

2

..

22

F.4 .

....

4

4

1

3

12

F.5 .

....

..

..

1

..

1

Total

32

13

5

3

53

                     Calvings and average age at first calving.

28 F.1 cows calved at an average age of 2 years 7 months and 20 days.
27. F.2 cows at 3 years and 16 days.
12. F.3 cows at 3 years 2 months and 1 day and
2. F.4 cows at 3 years and 1 day.