130 INVESTIGATION IN MILK PRODUCTION. 
lished an equilibrium between the in-go of nutrients and out- 
go of dairy product. She was in good flesh when she calved, 
and having stored in her body a large excess of body fat and 
other substances, she was enabled for ten consecutive weeks 
to yield more dairy products than the food supply would, 
under normal conditions, produce. The sudden shrinkage 
the fourth week in milk flow cannot be accounted for, but 
an examination of the record of the herd would probably 
show. Her average daily loss in weight during the first 42 
days was 3.33 pounds. The extra ten pounds in weight the 
9th week was probably caused by drinking more than the 
ordinary amount of water the day previous. 
The following gives a similar record of Pride, covering 
the first 11 weeks of her lactation. 
PRIDE, CALVED NOV. 29th. 
TABLE LII.—Giving Weight, Nutrients Consumed and Products Yielded from 
lst-llth Week of Lactation. 


| Nutrients to 















NUTRIENTS !)AILY PRopUuCT YIELDED 
WEEK WEIGHT | 
fein [CTL | Fat | Min |" Eat" | Souids| Pat | Solids 
ist 847 1.309 9.42 AT 2957 | 1.483 | 4.288 | 3.09 AE OM 
2nd 825 1.322 9.55 A7 «| 31.47 | 1.497 | 4.308 | 3.28 1.14 
3rd 822 (1.468 | 10.27 OL 30.14 | 1.458 | 4.198 | 4.00 1.39 
4th 805 1.486 | 10.40 .5O | 32.06 | 1.461 | 4.213] 4,18 1.45 
5th 782 1.486 | 10.40 50 31.30 | 1.423 |4.116| 4.42 1.49 
6th 770 1.512 |10.69 |] .51 | 32.01 | 1.357 | 4.094) 4.94 | 1.64 
7th 762 1.512 | 10.69 OL 30.78 | 1.407 | 4.124) 4.81 1.64 
8th 765 1.512 | 10.69 OL 30.24 | 1.323 | 4.019] 5.10 1.68 
9tb 767 1.512 | 10.69 OL 29.10 | 1.228 | 3.925] 5.48 aeral 
10th TS7 i512) | 1069) “St | 2876 i270) 3°89) | or36 5 teas 
11th 74:7 1.512 | 10.69 OL 28 28 | 1.241 | 3.684 | 5.54 | 1.86 
Average... 786 1.467 | 10.38 -50 30.35 | 1.368 | 4.071 | 4.104) 1.387 








Pride weighed 847 pounds at the beginning of her lac- 
tation, received daily the first week 1.309 of protein, 9.42 
pounds of carbohydrates and .47 of a pound of ether extract 
and gave 29.74 pounds of milk, 1.483 of butter fat and 
4.288 milk solids, and returned a pound of butter fat to 3.09 
