Milch Cows and Dairy Farming / Comprising the Breeds, Breeding, and Management, in Health and Disease, of Dairy and Other Stock, the Selection of Milch Cows, with a Full Explanation of Guenon's Method; The Culture of Forage Plants, and the Production of Milk, Butter, and Cheese: Embodying the Most Recent Improvements, and Adapted to Farming in the United States and British Provinces. With a Treatise upon the Dairy Husbandry of Holland; To Which Is Added Horsfall's System of Dairy Management - Charles Louis Flint

Nitrogen,		316	lbs.
Phosphate of lime,		99
Phosphoric acid,	=	45	.50
Cost of food per cow per week,8s.6¹⁄₂d.
When the yield of milk is less, the cost of food is reduced to 7s. 8d. per week.

				s.	d.
Gross	return	in	milk,	16	4
“	“	“	weight,	1	6
“	“	“	manure,	2	8
				20	6

ANALYSIS OF EXCREMENT BY PROFESSOR WAY.

	Per cent.
Moisture,	84.85
Phosphoric acid,	.39
Potash,	.58
Soda,	.22
Other substances,	13.96
	100.

Nitrogen,	.41
Ammonia,	.49

Manure, 88 lbs. per cow per day.
	For	6	cows	per day 528 lbs. = 3696 lbs. per week.
	“	“	“	for 27¹⁄₃ weeks 101,028 lbs., containing of
				Nitrogen,	414	lbs.
				Phosphoric acid,	393
				Potash,	585

Nitrogen incorporated in food,		888	lbs.
Caseine,	316.
Fibrin,	7.35
Manure,	414.
Balance consumed in perspiration,	150.65
	888.00
The materials of food are shown to have cost £70 0s 9d.

	£.	s.	d.	£.	s.	d.
Gross value 16,072 quarts of milk, at 2d. per quart,				133	18	8
Gain of weight 500 lbs., at 6d. per lb.,				12	10	0
Nitrogen in manure 414 lbs. = Ammonia 494 lbs., at 6d.,	12	7	0
Phosphoric acid 393 lbs., at 1¹⁄₂d. per lb.,	2	9	1
Potash 585 lbs., at 3d. per lb.,	7	6	3
				22	2	4
£				168	11	0

	s.	d.
Manure per cow per day 88 lbs., per week 616 lbs.
Containing ammonia 3 lbs.,	1	6
Phosphoric acid 2.40 lbs.,	0	3	¹⁄₂
Potash 3.57 lbs.,	0	10	¹⁄₂
Value of a cow’s excrement, per week,	2	8

The analyses of the chief ingredients of my own produce, or such extra materials as I usually purchase, have been made by Professor Way; for other materials I have had recourse to a very useful compilation by Mr. Hemming (vol. xiii., p. 449, of the Society’s Journal), and to Morton’s “Cyclopædia of Agriculture.” The analysis of straw is that of oat-straw; that of green food is derived from the analysis of rape-plant, cabbages, and kohl rabi. During February and March I have been using wheat and barley straw with marigold, and, as these materials contain less oil, I give in the steamed food three ounces of linseed-oil per day to each animal. For the composition of milk I adopt that by Haidlen, whose method of analysis is reputed to be the most accurate, the proportion of butter in my milk being this season very similar to that given by him.