N. C. DAS GUPTA 197
TABLE I—(contd.)
Breed .
.
.
.
Age on 31st January 1939
(Yr.—m—d)
Average
liveweight for
week ending—
5-2-39 . . .
12-2-39 . . .
19-2-39 . . .
26-2-39 . . .
5-3-39 . . .
12-3-39 . . .
19-3-39 . . .
20-3-39 . . .
2-4-39 . . .
9-4-39 . . .
16-4-39 . . .
23-4-39 . . .
30-4-39 . . .
7-5-39 . . .
14-5-39 . . .
21-5-39 . . .
28-5-39 . . .
Total increase in live weigh
Average increase in live-
weight of breed
Average increase in the
live weight of group
Group I
Concentrate mixture alone
1 H
2-1-12
543
558
565
575
581
598
606
605
617
622
629
640
648
659
670
679
684
162
2 H
2-1-11
395
401
415
423
428
438
447
452
459
467
476
481
492
493
510
524
528
149
155
3 M
1-6-29
482
432
461
488
509
522
535
542
556
566
578
583
599
611
624
636
648
172
4 M
1-7-19
504
471
501
521
532
549
565
579
592
600
615
624
639
650
663
676
694
196
184
170
Group II
50 per cent of concentrate protein
replaced by berseem
5 H
2-1-27
520
530
546
555
562
568
576
582
579
579
585
590
595
593
604
619
624
120
6 H
2-1-23
458
468
475
480
482
496
507
516
517
520
529
533
539
543
552
561
565
123
122
7 M
1-7-1
449
446
443
452
465
472
483
490
496
501
511
522
530
538
550
556
566
133
8 M
1-7-11
528
525
523
536
539
548
555
564
571
573
584
591
601
606
618
630
641
129
131
126
Group III
75 per cent of concentrate protein
replaced by berseem
9 H
2-1-6
495
503
509
519
517
525
531
531
536
539
555
559
566
575
586
600
608
129
10 H
2-1-4
471
471
479
481
483
492
498
501
503
507
521
528
536
545
552
562
573
121
125
11 M
1-7-15
461
450
441
461
470
480
490
497
498
502
515
522
538
547
551
556
565
110
12 M
1-7-4
545
553
529
520
542
566
578
585
581
588
601
609
618
628
640
645
658
120
115
120
H—Hissar
M—Murrah
The analysis of variance of the initial liveweight
of the different groups shows no significant differ-
ence. It appears from the analysis of variance of
rate of growth that the variation due to feed is
significant at 0.1 per cent level. The average
rate of growth per week for the treatments are
10.46, 6.77 and 7.11 lb. with a standard error
of ± 0.237 lb. indicating thereby that the full
concentrate ration is definitely superior to both
50 per cent and 75 per cent replacement of protein
of the concentrate by berseem, but there is no
significant difference between the latter two treat-
ments.
The analyses of the data show a highly signifi-
cant difference in the growth rate of Hissar and
Murrah breeds and the interaction of breeds with
feeds is also significant at 5 per cent level.
The experiment was repeated in the year 1940,
with a larger number of animals to confirm the
findings. Eighteen heifers, nine Hissar and nine
Murrah, were taken for this purpose. All the
animals were fed with the full concentrate ration
for three weeks before they were distributed into
three comparable groups according to age and live-
weight.
As in the previous experiment, one group was
allowed to continue on the concentrate ration;
half of the protein of concentrates was replaced
by the protein of berseem for the second group;
while three-fourths of concentrate protein was
similarly replaced for the third group. All the
animals received 40 gm. of Churn Brand mineral
mixture throughout the test which lasted for 10
weeks. The distribution of the animals into the
different groups and the weekly average live-
weights during the experiment have been shown
in Table II.