[manueial value of food. D A I R Y - F ARMING individual cows with the coincident differences in con- the milk, or remaining for manure, are nevertheless sumption to produce it, it may be considered as satis- reckoned per ton of each kind of food consumed, as in the factorily established that more food is consumed by a case of those relating to feeding for the production of herd of cows to produce a fair yield of milk, of say 10 fattening increase. It may be added that the calculations or 12 quarts per head per day, than by an equal live- of the amounts of the constituents in the milk are based weight of oxen fed to produce fattening increase. In the on the same average composition of milk as is adopted in of Table V. Thus the nitrogen is taken cases supposed it may, for practical purposes, be assumed the construction that the cows would consume about one-fourth more food at 0 579 ( — 3'65 nitrogenous substance) per cent., the than the oxen. Accordingly, in the Eothamsted estimates phosphoric acid at O^lTb per cent., and the potash at of the value of the manure obtained on the consumption 0T875 per cent, in the milk. Table VIII. shows in detail the estimate of the amount of food for the production of milk, it is assumed that onefourth more will be consumed by 1000 lb live-weight of of nitrogen in one ton of each food, and in the milk procows than by the same weight of oxen; but the estimates duced from its consumption, on the assumption of an of the amounts of the constituents of the food removed in average yield of 10 quarts per head per day; also the 350
Table VIII. Estimates of the Total or Original Manure-Value of Cattle Foods after Consumption by Cows for the Production of Milk. Valuations on the assumption of an average production by a herd of 10 quarts of milk per head per day.
Description of Food.
Linseed . Linseed cake Decorticated cotton cake Palm-nut cake Undecorticated cotton cake Cocoa-nut cake Rape cake
Total or Original ManureValue per [ In Milk In Milk Ton of Ini Ton! from Total Ini Ton from Total of Food. 1 Ton of remain- Value Food conof Food. 1 Ton of remainFood. Food. ing for Value IJd. sumed. at 2d. I ing for at Manure. per lb. Manure. per lb. lb s. d. lb lb lb lb s. d. lb 8-02 22-67 2 10 34-50 9-34 25-16 4 2 3024-65 3 1 6-71 44-80 7-79 37-01 6 2 31In Manure.
In Manure. In Milk In I Ton from Total re- Nitrogen Value of of Food. 1 Ton maining equal Ammonia of Food. for Amat 4d, Manure. monia. per lb. lb lb 80-64 25-04 106-40 20-86
Potash.
Phosphoric Acid.
Nitrogen.
lb lb £ s. d. 55-60 67-52 12 6 85-54 103-87 1 14 7
69-44 147-84 19-27 128-57 156-13 2 12 26-88 56-00 17-86 38-14 46-31 0 15 84-00 15-66 68-34 82-99 17 8 44-80 76-16 15-66 60-50 73-47 14 6 31-36 109-76 12-50 97-26 118-11 1 19 4 56-00 19-04 80-64 17-86 62-78 76-24 24-64 89-60 17-86 71-74 87-12 16-80 94-08 17-86 76-22 92-56 17-92 94-08 17-86 76-22 92-56
9 10 11
Peas Beans Lentils Tares (seed)
12 13 14 15 16 17 18
Maize Wheat Malt Barley Oats Rice meal Locust beans
38 08 40-32 38-08 36-96 44-80 42-56 26-88
17-38 17-38 17-86 17-38 16-68 16-68 13-90
20-70 22-94 20-22 19-58 28-12 25-88 12-98
25-14 27-86 24-55 23-78 34-15 31-43 15-76
19 20 21 22
Malt coombs Fine pollard Coarse pollard Bran
87-36 54-88 56-00 56-00
151615-66 13-90
71-70 38-20 40-34 42-10
87-07 46-39 48-99 51-12
23 24
Clover hay Meadow bay
53-76 33-60
8-94 8-36
44-82 25-24
54-43 0 30-65 0
25 26 27 28 29
Pea straw Oat straw Wheat straw Barley straw Bean straw
22-40 11-20 10-08 8-96 20-16
7-83 6-95 5-98 5-46 5-68
14-57 4-25 4-10 3-50 14-48
17-69 0 5-16 4-98 4-25 17-58 0
30 31 32 33 34 35 36
Potatoes . Carrots Parsnips . Mangel wurzels Swedish turnips Yellow turnips White turnips
5-60 4-48 4-93 454-48 4-03
2-07 1-46 1-67 1-32 1-14 0-93 0-84
3-53 3-02 3-26 343-55 3-19
4-29 3-67 3454-31 3-87
13-44 19-04 17-92 16-80 13-44 (13-44)
6-22 38-58 4 10 3 7 4 5-73 5-47 0 8 0 19 5
5-85 38-95 5-85 25-51 4-69 51-31 6-68 12-36 6-68 17-96 6-68 10-12 6-68 11-
6 6 44-80 4 3 44-80 8 7 33-60
5-07 39-73 5 0 1 19 2 5-07 | 39-73 5 0 1 13 9 4-09 29-51 3 8 2 11 7
2 3 1 1
1 0 8 10
21-50 29T2 15-68 17-92
5-73 15-77 2 0 19 5-73 23-39 2 11 1 14 5-73 9-95 1 3 1 .13 5-73 12-19 1 6 1 14
6-50 66-50 126-68 11-24 6-50 10-30 6-24 76-24 7-20 5-19
1 2 1 1 1 1
2 1 10 9 2 2
8-29 1111-20 1211-20 (8-29)
5-56 5-56 5-73 5-56 5-40 5-40 4-42
2-73 6-31 565-80 2-89
0 0 0 0 0 0
4 9 8 10 9 4
0 0 0 0 0 0
6 11 9 2
9 12 10 10 13 12
38-95 6 6 6 44-80 5-07 | 39-73 5 0 2 0 6 5-40 1 27-30 3 5 18 8 58-72 9 6 9 3272*55 12 1 335-07 j 28-53 3 7 1 12 0 75-45 12 7 32-48 4-42 ! 28-06 3 6 1 13 1 18 12-77 3-35 9-42 1 7 33-60 2-94 30-66 3 10 13 7 8-96 3-10 5-86 1 0 35-84 2-62 33-22 4 2 0 15 5 10 5 11 7-84 2-91 4-93 0 10 22-40 2-46 190 6 22-40 2-29 201 9 5-38 2-60 20 6 17-92 1-96 15-96 2-23 31 8 51 5 4-03 2-04 1-99 0 4 22-40 1-80 20-60 0 9 22-40 1-80 20-60 2-14 45 10 612-32 0-66 11-66 1 5 0 3 3 0-78 21 5 30 9 0 2 3 6-27 0-49 513 2-02 0-54 1-48 0 2 10 0 11 9 8-06 0-49 70-63 314 40 2 9 1 1 3 8-96 0-496 81-08 16 1-57 0-49 93 0 2 7 4-60 0 7 4 4-93 0-334 0-90 1 10 1-34 0-44 60 (4-93) 0-33 (4-60) 0 7 0 2 2 15 (1-34) 0-34 1-00 0 10 0 2 3 6-72 0-33 613 1-12 0'31 0-81
19 0 15 0 16 0 17
0 0 0 0 0 0 0
44-.80 11-20
7-18 62-26 10 6-68 20-20 3
0 6 4 0
amount remaining for manure, the amount of ammonia corresponding to the nitrogen, and the value of the ammonia at 4d. per lb. Similar particulars are also given in relation to the phosphoric acid and the potash consumed in the food, removed in the milk, and remaining for manure, &c. This table will serve as a sufficient illustration of the mode of estimating the total or original
44-80 64-96 78-40 80-64
565-85 5-19
value of the manure, derived from the consumption of the different foods for the production of milk in the case supposed; that is, assuming an average yield of a herd of 10 quarts per head per day. In Table IX. are given the results of similar detailed calculations of the total or original manure-value (as in Table VIII. for 10 quarts), on the alternative assumptions
