75232391.htm

RATE OF DECLINE IN MILK YIELD OF VARIOUS TYPES OF CATTLE 39

TABLE I.
Average weekly milk yield of buffaloes during weeks following maximum—
All observations. (Maximum:— 7th week.)

Weeks after calving	No. of records averaged	Data of milk yield in lb.		Deviation
Weeks after calving	No. of records averaged	Observed	Calculated	Deviation
8	135	134.3	138.8	—4.5
9	136	131.2	135.2	—4.0
10	139	127.9	131.6	—3.7
11	140	126.0	128.1	—2.1
12	139	123.9	124.8	—0.9
13	138	120.8	121.5	—0.7
14	139	117.7	118.4	—0.7
15	138	115.5	115.3	0.2
16	139	113.4	112.3	1.1
17	140	110.5	109.3	1.2
18	139	108.4	106.4	2.0
19	139	106.2	103.6	2.6
20	139	102.4	100.9	1.5
21	139	100.6	98.31	2.29
22	138	98.8	95.72	3.08
23	139	95.2	93.24	1.96
24	138	92.3	90.70	1.60
25	139	88.0	88.41	—0.41
26	137	87.5	86.10	1.40
27	136	85.5	83.85	1.65
28	135	82.8	81.66	1.14
29	133	80.4	79.50	0.90
30	131	76.6	77.43	—0.83
31	122	74.5	75.41	—0.91
32	116	73.2	73.43	—0.23
33	109	69.5	71.52	—2.02
34	100	66.6	69.63	—3.03

Rate of decline per lb. per week:—.0265.
Ratio of any week's yield to that of preceding week:—.9738.