103 



PART D. 



Note' on the Credit to be made for Manure in Milk Production. 



In costing milk it is necessary to give the cows credit for the value of the manure which they produce. So far as the summer period 

 May to September is concerned the greater part of the manure is either dropped on the grass land or by the wayside and very little goes 

 into the dung heap. Hence if no charge be made against the grass no credit need be given to cows for that part of the manure which 

 goes directly to the grass. As regards what goes into the dung heap, it is calculated that the credit would not exceed about \d. per 

 gallon on the average. 



As to the winter period October to April two methods may be followed, viz., (1) the quantity of dung produced may be estimated 

 and valued at the price prevailing in the district, or (2) the value of the manure may be calculated on Hall and Voelcker's Table of 

 Manurial Values. 



Where all home grown foods are charged at farm market value, the first method is necessary in order to give a fair result. In this 

 investigation, straw and roots have been charged at their " farm value," hay and oats at their market value. 



Records are available of the total quantities of foods consumed by dairy stock, of the quantity of dung produced and of the milk yield 

 on a number of farms during the period 6th October, 1918, to 18th May, K19. These are summarised below : 



TABLE SHOWING MANURIAL VALUES of (a) Home Grown, (*) Purchased Foods from 10 farms during the period 6th October, 1918. 

 to 1st February, 1919, and from 8 farms during the period 2nd February, 1919, to 18th May, 1919. 



(a) HOME GROWN. 



Food. 



Bye grass and meadow hay 

 Oat straw 



Wheat straw 



Oats 



Oats and wheat 



Swedes and turnips 

 Potatoes ... 



Manurial Value 



per ton. 



*. d. 



17 



76 



60 



October to February. 



February to May. 



18 



17 



2 



3 



Quantity. 



Tons cwts. 



HO 



157 



2 



22 



2 



686 

 25 



10 

 10 

 

 

 

 10 



Minurial Value. 



i. d. 



119 



59 1 



15 



19 16 



1 15 



85 15 



3 16 



3 

 

 

 

 

 6 



Quantity. 



Tons cwts. 

 138 11 

 126 12 



21 1 



365 7 

 26 15} 



Mannrial Value. 



i. d. 



117 14 



47 9 



18 19 



. 45 13 



4 19 



289 18 9 



234 14 



(i) PURCHASED FOODS. 



Cotton cake, mixed 



Linseed cake 



Linseed and cotton cake mixed 



Palm kernel cake 



Dairy cake and meal 



Bean meal 



Bean meal and Indian meal ... 



Miller's offals 



Dried grains 

 Len il offals 



Malt cummins 



BUB meal 



Bye flour 

 Pea offals 

 Loons bean meal 

 Wet grain* 



Treacle 



Carnosin 



37 

 44 

 40 

 23 

 30 

 36 

 24 

 31 

 29 

 36 

 40 

 40 

 30 

 36 

 13 

 7 



Tons cwts. 



4 



3 



10 



10 



3 

 42 IS 



16 10 

 15 



1 10 



2 

 5 10 



10 



147 



t. d. 

 780 

 6 13 

 100 

 11 6 

 4 10 



76 19 



2.J 11 6 



1 1 9 



2 14 

 400 



11 

 15 



51 9 



Tons cwt8. 



1 10 

 17 1J 



3 

 43 10} 

 3i 



26 3| 



1 3} 



1 14 



9 



6 10 



1 



10 

 



102 17 

 4 14J 

 10 



i. d. 



2 15 



87 11 



1 I 



4 10 



78 7 



4 



40 12 



1 14 



310 



18 



13 



4 10 



13 



36 1 



193 11 9 



224 17 



Total milk produced 





Manurial valne per gallon 



Total 



Oct. to Feb. 

 63,898 gals. 



l'09rf. 



0-73d. 



Feb. to May. 

 59,279 gals. 

 0-95<2. 



t. d. 



On basis of dung Valua- / 1,236 tons <a> 802 12 

 tion. (. 1,120 tons @ 747 



Difference 



S-Old. 

 l-19d. 



In this case all home grown foods were charged at farm market value. 



NOTE. The figures for manurial values given above were drawn up in 1914, but the increase in current raanurial values per ton is 

 offset by the fact that the foods were entirely consumed by dairy stock and the manure stored in open heaps as is the custom on dairy 

 farm* subject to an average wastage of at least 30 per cent. Hall and Voelcker point out that "our tables are based on the assumption 

 that the manure if made in stalls or yards which do not admit of loss by drainage and has been kept with all reasonable care, protected 

 from washing with rain, or loss from undue or prolonged exposure." They further state that where the manure has undergone 

 deterioration through inferior management a deduction not exceeding 50 per cent, of the figures given may be made on this account. 



