104 INVESTIGATION IN MILK PRODUCTION. 
TABLE XXVI.—Giving Net Nutrients Used by Mature Cows for the Production 
of One Pound of Milk Testing a Given Per Cent Butter Fat. 


Carbohy- Ether 





Protem drates Extract 
ACOSO SE ICE SRE NBOOSEOOOCCEE PLE) .0362 164 .0124 
SOA eee We ee og, |, 0860) || AG Tea mItMAONeG 
POU ATA Mol cot Peat Me nnd sth ences 7 .0376 iz ‘0128 
ieee Sa th 20k Te Wee ee es 2.8 0383 174 0131 
Be cee nee seen oat ae ae oer cene atiiassrcleces's > 2.9 -0390 ol eT .0133 
SE ON cottage vise a ewan Jaane eeenene So) 0397 -181L .0136 
8 A Reda RDS IS TORO ODO CMUCHIADSODOGHAOO aaLSODOONOCeCG Sol 0404 184 .0138 
PERE SO nEE ALEC IO DAS aa 0 ODDO DITOR BOE CCOOOEEIOAIOG 3.Z O4LL 187 .0140 
Re ee ee ee eee rayne cts cite niniblen oa sieicine 3:3 0418 -190 .0142 
Fc cana a cO Rae e pane RUC ERROR DeRosa aITOUTS hie J 0425 194 0145 
eee Neer fies cans se awenne cc ctaceeinciee se 3.5 0432 197 0147 
Petia ney aie Pe ee ee deat A So artes OO 04.39 .200 (0149 
Nn oe ee PER OPe ecteonneaceer ea 0446 .204 .0152 
See RE eR en cr 0 Gon DOR OROEE ECCI ICOSUIDEOIOCOOE 3.8 .0453 .207 -0154 
Se cana BOO LOBUCOLOACBIOS DEIN OQIOHOOCO IS FOOGOND seh .0460 .210 .0156 
Baan ee ce ea D ears eo ine ria daleeee cones 4.0 0467 .214 0159 
Fee ean ean ee pmtice cee tadeatis wees esoue’ 4.1 0474 SPT? O161L 
5s06oa? HOSoAnOABoDoosOdeno ID truouaddooduounoooNad 4.2 O4851 -220 .0163 
HSDO DOO SEAR IGCPOCONAEDSROUDOCOBDIGO, OOOCSCCCOOC, 4.3 0488 223 .0165 
Re. Ree Ate eee wae csionctise toes 4.4 0495 PAT .0168 
BSAA Rocr Se SunEe HES RRRAO DEE oap cob besaanacocr 4.5 -0502 -230 0170 
BEN Fes I Me ene teens a scans dee se ence 4.6 -0O509 oS -0172 
An DEED Uno cere © Soadoacoaadadagacnoormopmnoood 4.7 .0516 mots -O175 
MEE AIA es: eee na em decease enero Seen amass 4.8 .0523 .240 0177 
SAR OD ER CBO AC ROO TOO AEEBC optic MOBCOS TOC COOGS 4.9 .0530 .243 .0179 
BASE CECOD ECC ONOUCC BO COODE BERS UNCER EARP E COLIC 5.0 0537 247 -0182 
Pe ee Sen Meee eee ened ae carers scene 0544 -250 -O185 
BERG CoD Miter DOCOEE AEDS eOCH EOC Go DC One ALLA? O551 Oe -0187 
a3) .0558 -256 -<OL89 
5.4: .0565 .L260 .0192 
ASS) 0572 PAS 3} .U194 
ASAT 0579 .266 .0196 
SHSTl 0586 -270 .O199 
sate) 0593 ore 0201 
HBS) 0600 .216 .0203 
.6.0 .0607 -280 0206 
6.1 .0614 -283 .0208 
6.2 0621 .286 .0210 
6.3 0628 -289 0212 
6.4 -0635 -293 -0215 
65 -0642 .296 OPA U7¢ 
6.6 0649 .300 .0219 
(a7/ 0656 .3803 .0222 
6.8 -0663 .306 0224 
6.9 0670 .309 .0226 
a iO -O677 sols} .0229 
Co-efficients tor Food of Maintenance per cwt.. .O7 itl .O1 

The table is very closely in accord with the nutrients 
used toa pound of milk yielded by the mature members of the 
herd not making material gain in body weight, except that 
it provides more than was actually used by the cows giving 
milk of medium quality, say for that testing from 3.5 to 4.5 
per cent of butter fat. In the table given, .0007 of a pound 
of protein available for product was allowed for each .1 of 
one per cent increase in the per cent fat in the milk, while in 
fact, the difference was not so great between the lower 
grades of milk. 
To illustrate the rate of increase of protein used, per 
pound of milk yielded by the cows, as their milk was richer 
