INFLUENCE OF STAGE OF LACTATION. 135 
Klondike returned a pound of milk to .03 protein. . - 
bohydrates and .020 of ether extract. Shepecened 302 ihe: 
net nutrients to a pound of milk and lost .29 of a pound 
daily in body weight, while the table referred to prescribes 
.318 of a pound of net nutrients to a pound of milk. For 
the present itis not recommended that cows should be fed on 
a ration having so little protein, that is, with a nutritive 
ratio of 1:10, for it might ultimately cause a depression in 
milk giving functions and deterioration in dairy tempera- 
ment in the off spring. However, as yet no ill effects have 
been manifested from feeding the wide rations. The most 
surprising feature isa shrinkage in weight with wide rations 
as shown in Table L. 
DUCHESS. 
TABLE LVI.—Giving Nutrients Consumed and Products Yielded by Duchess from 
her 58th-71st Week of Lactation. 











Bh AGS NUTRIENTS DaILy PropucrT YIELDED | a raieiids 
| tein | C-H.| Fat | min | "Eat" | Solids| rat’ |Solids 
58th §22 1.254 9.62 | A5 13.83 | .856 | Gt | bis 2.27 
59th 832 1.509 | 10.63] .53 VSs36 |) .Saek | 2.160) 7.09 2.86 
60th 830 1,254 9.62 | 45 SED S) | Rea ela (Se45 2.26 
61st 835 1.254 9.62| .45 OU ost = erst2i76 | Pena lair | 5.82 2.20 
62nd 8£5 ‘1.267 9.76 | 45 S253) |) eSael | 2.146 | 5.61 2.28 
63rd 850 | 1.286 9.98 | 45 12.41 798 | AROS) 63h |) 2:5 
64th 835 1.231 9.39 | 42 VOGT | 84> | 19665 5378 2.30 
65th £20 } 1-231 9239 | 42 13.48 TAL 1.944 | 6.26 2.39 
66th 807 1257)| 9.68 43 13.52 741 |1.974 | 6.74 2.593 
67th 812 1.257 9 68 A3 13.63 | .684 | 1.919] 7.36 2.62 
68th 822 1°25 7 9.68 43 |14.18| .788 | 2147} 6.29 2.31 
69th 825 POI7f 9.68 43 UST || Seu) | 2.018) 6.41 2.45 
7Oth 822 aL Jap }| aU Ko39) Pole el4aoS | eion eeCGON eecte: 3.06 
MESSE 825 1.257 | 9.68 43 U5 el7 |) 8540 2/278 a7 PAeALT( 
| | 
Ave. 27 1.292 a 76) 45 13.63] .800 | 2 073] 6.35 2.45 








The heifer Duchess aborted and was in her 58th week of 
lactation when the feeding experiment began. Her average 
weight during the first three weeks was 828 pounds, and the 
last three, 824 pounds, being a decrease of only 4 pounds, 
taking the three first and three last weighings as a basis. 
There was, however, quite a change in her weight, gradually 
increasing to the 63rd week and then decreasing to the 66th 
week and this was probably due to the reduction in her feed, 
