354 Pork Production 



(e) Interest, depreciation, and insurance on gen- 

 eral equipment for four years $24.00 



(/) Four service fees 8.00 



(g} Labor for four years 40.00 



Total feed plus other costs of four litters at weaning 



time 190.00 



IX. Value of sow for pork (425 Ib. @ $8.78 per cwt. 



minus cost of 75 Ib. gain @ $7.87 per cwt.) . . 31.40 

 Total cost each weaned litter produced by mature 



sow raising one litter annually 39.65 



The total cost of each weaned pig would, therefore, 



be as follows : 



1. With 5 pigs raised to the litter 7.93 



2. " 6 " " " " " 6.63 



3. " 7 " " " " " 5.66 



4. " 8 " " " " " 4.96 



C 



WHEN PRODUCED BY MATURE Sows KEPT UNTIL FOUR YEARS 

 OLD AND YIELDING THREE LITTERS EVERY Two YEARS 

 AFTER MATURITY (TOTAL OF 5 LITTERS). AFTER WEAN- 

 ING HER FIFTH LITTER SHE is FATTENED AND SOLD FOR PORK 

 I. Feed cost of raising the sow pig to breeding age 



(35-200 Ib.) $9.45 



II. Cost of feeding gilt from breeding to farrowing 



time 8.50 



III. Cost of feeding the sow (gilt) and nursing litter . 10.70 



IV. Cost of feeding open yearling sow six months dur- 



ing summer 6.00 



V. Cost of feeding pregnant sow during three winters 24.07 

 VI. Cost of feeding pregnant sow during one summer 

 (76 feed units or pounds of concentrates at \\$. 



per Ib. plus $3.00 pasture charge) 4.14 



VII. Cost of feeding sow and four nursing litters (3170 

 feed units or pounds of concentrates @ I \i per 



Ib.) 47.55 



VIII. Cost of maintaining open sow during one summer 

 of six mo. (49 feed units or pounds of concen- 

 trates @ \\i per Ib. plus $3.00 forage charge) . 3.73 

 IX. Other costs of raising and maintaining brood sow 

 four years : 



(a) Charge for sow pig (estimated) 5.00 



(6) Four years interest on average value of sow 



($40 @ 5%) 8.00 



