132 INVESTIGATION IN MILK PRODUCTION. 
Euroma camein four weeks before the feeding experiment 
began, so we have here a record covering a period from the 
5th to the 19th week of lactation, leaving off the greater 
portion of the natural “milking down” period, so there are 
no such marked changes in weight as was shown in the ta- 
bles preceding it. As the period of lactation advanced the 
nutrients required to a pound of product increased and dur- 
ing the 14 weeks she used on an average 5.34 pounds of nu- 
trients to a pound of butter fat, while Pride required 4.104 
and Trust 3.79. She returned apound of milk solids to 1.98 
pounds of nutrients, while Pride required 1.39 and Trust 
1.34. This difference seems to be due to the difference in the 
rate of decrease of body weight and with Euroma, also, to 
the farther advance in lactation. 
DORRIT, CALVED SEPT. 16, 1901. 
TABLE LIV.—Giving Nutrients Consumed and Products Yielded from 9th-23rd 
Week of Lactation. 

















NUTRIENTS DAILY PRODUCTS YIELDED DS ee 
Week | Wt. 
Protein gC. Et. Fat Milk eae aot Bee aol 
9th | 897 2.111 12.03 61 25 60 1.489 | 3.953] 5.23 1.96 
10th | 902 P)oalhal 12.03 61 24.81 1.477 | 3.821] 5.23 2.02 
11th | 902 Pyeatatal 12.03 61 | 24.81 1.477 | 3.821) 523 2.02 
12th | (8S 2.012 OO 56 | 21.84 1.311 | 3.407 | 4°99 1.92 
13th | 892 2aOdez WOE) 7/ 256023200 1.337 | 3.501 | 4.92 Iletsi7/ 
14th | 900 2.044 dE ees} 56 22.66 1.344 | 3.474] 5.14 LAKE) 
altayeol |} Spey 2.076 11.64 [OG 22.90 L258) | 3.392) 5.70 Pysil 3b 
16th | 905 2.076 11.64 56 22 31 1 280 | 3.307] 5.64 2.18 
17th | 895 2.076 11.64 56 21.96 LALS OS elso 6s 2.28 
18th | 895 2.114 12.11 OF 22.61 1.233 | 3.233) 6.34 2.41 
19th | 892 Marae || alestst S76 22.40 BU || SilGss |) Syeat 2.47 
20th | 897 2.114 ateja lol LaV?/ 22.37 176) |S e302) | 6263 2.36 
21st 910 2.114 AQ. ONS 21.33 | ALS fai S tS Sumo nats 2.45 
22nd | 910 2.114 1 a3 fOyTh Pyal say A Se oel oo 5.70 2.45 
23rd | 910 2.114 12.11 cai 21.70 1.168 | 3.181 59 2.41 
Ave. 901 2.085 lal S77 457 22.99 W265) "3:37 | 5:85 2.19 
\ 






Dorrit calved September 16th so she wasin her 9th week 
of lactation on the 11th of November when the feeding ex- 
periment began, and therecord covers her work from the be- 
