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Class (4?.^.^...X^- 

Number JV.'S.'B.... 



Volume .^. ..J^r^:^ X 

Source .\Saa-m3uiaa,c:j. 



Received 




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Accession No. \ 5" A^ S. 



Bulletin 113 



October. 1904 



NEW HAMPSHIRE COLLEGE 

Agricultural Experiment Station 

CORN-MEAL, MIDDLINGS, AND SEPARATOR 
SKIM-MILK FOR FATTENING PIGS 




By EDWARD L. SHAW 



NEW HAMPSHIRE COLLEGE 



OF 



AGRICULTURE AND THE MECHANIC ARTS 



DURHAM 



NEW HAMPSHIRE COLLEGE 



OF 



AGRICULTURE AND THE MECHANIC ARTS 



AGRICULTURAL EXPERIMENT STATION 

DURHAM, N. H. 



BOARD OP CONTROL 

Hon. JOHN G. TALLANT, Chairman. Pembroke. 
Hon. GEORGE A. VVASON, New Boston. 
CHARLES W. STONE, A. M., ^-^cr^A/rj. East Andover. 
Hon. warren BKOVVN. Hampton Falls. 
Pres. WILLIAM D. GIBBS, ex-officio, Durham. 

STATION COUNCIL 

WILLIAM D. GIBBS, M. S., Director. 
FRED W. MORSE, M. S., Chemist 'a\m\ Vice- Director, 
^CLARENCE M. WEED, D. Sc, Entoirwlogist. 
FRANK WILLIAM RANE, B. Ac, M. S., Horticulturist. 
FREDERICK W. TAYLOR, B. S., Agriculturist. 
EDWARD L. SHAW, B. S., Associate Agriculturist, 
IVAN C. WELD, Dairy Mam/factures. 
HARRY F. HALL, Associate Horticulturist. 

ASSISTANTS 



J 



HARRY D. BATCH ELOR, B. S., Assistant Chemist. J 

JOHN C. BRI DWELL. B. S., Assistant Entomologist. \ 

MABEL H. MEHAFFEY, Stenographer. \ 

* Ressigned Sept. ist, 1904. 



CORN-MEAL, MIDDLINGS, AND SEPARATOR SKIM- 
MILK FOK FATTENING PIGS. 



BY EDWAKD L. SHAW. 



This experiment was started December 1, 1903. The object 
was (1) to compare the feeding value of separator skim-milk 
when fed with corn-meal and with middlings, and (2) to com- 
pare the feeding value of corn-meal and middlings. 

PLAN OF THE EXPERIMENT. 

Twenty Yorkshire pigs, from twelve to thirteen weeks old 
and of uniform size, were selected and divided into four lots, 
five pigs in each lot. The pigs were all numbered with the 
Dana label, weighed every ten days, and the weight of each 
pig carefully recorded. 

The pigs were fed on the experimental ration for a few days 
to become accustomed to the change before the initial weights 
were taken. 

In selecting the twenty pigs for the exj^eriment, ten sows and 
ten barrows were chosen, so as to compare the gains made by 
the sows with the gains made by the barrows. 

The sows and barrows were divided in the four lots as fol- 
lows: 

Lot I, two sows and three barrows. 

Lot II, two sows and three barrows. 

Lot III, three sows and two barrows. * 

Lot IV, three sows and two barrows. 

The experiment was divided into two sixty-day periods. 
During the first sixty-day period the four lots were fed as 
follows: 



140 CORN-MEAIi, MIDDLINGS, AND SEPAEATOK SKIM-MILK 

Lot I, corn-meal and separator skim-milk; four pounds of 
skim-milk to one pound of corn-meal. 

Lot II was fed corn-meal and water; enough water was added 
to the corn-meal to make a good slop. 

Lot III was fed middlings and separator skim-milk; four 
pounds of skim-milk to one pound of middlings. 

Lot IV was fed middlings and water; enough water was added 
to the middlings to make a good slop. 

At the close of the first sixty-day period lot two had made a 
fair gain, but lots three and four had made rather small gains, 
and in order to get them in condition for market the rations 
^vere changed as follows for the second sixty-day period: 

Lot I, fed the same as before. 
Lot II was fed corn-meal and skim-milk. 

Lot III was fed corn-meal, middlings, and skim-milk (half 
corn-meal, half middlings). 

Lot IV was fed corn-meal and skim-milk. 

The cost of the corn-meal, middlings, and skim-milk was as 
follows: 

Corn-meal . . . $1.10 per hundred pounds. 
Middlings . . . 1.20 " " " 

Skim-milk . . . 0.15 " 



FOR FATTENING PIGS 



141 



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142 COEN-MEAL, MIDDLINGS, AND SEPAEATOK SKIM-MILK 

In looking over the table for the first sixty-day period, it Avill 
be seen that Lot T, receiving corn-meal and skim-milk, made an 
average gain of 35.5 pounds more and at a cost of 2.18 cents 
per pound of gain less than Lot II, which received corn-meal 
and water. 

Lot III, receiving middlings and skim-milk, made an average 
gain of 14 pounds more and at a cost of 2.02 cents less per 
pound of gain than Lot IV, receiving middlings and water. 

Lot II, receiving corn-meal and water, made an average gain 
of 14.4 pounds more and at a cost of 2.93 cents less per pound 
of gain than Lot IV, which received middlings and water. 

During the second sixty-day period, the three lots receiving-^ 
corn-meal and skim-milk made very good gains and at a mod- 
erate cost per pound of gain. It will be seen from the tables 
that it cost 1.1 cents more in Lot I during the second sixty-day 
period to produce a pound of gain, this lot having received the 
same ration during both periods. 

Lot III, receiving half corn-meal and half middlings with the- 
skim-milk, did not make a pound of gain as cheaply as when 
fed middlings and skim-milk. 



FOR FATTENING PIGS 



143 



TABLE SHOWING THE GAINS MADE BY THE SOWS AND 

BARROWS. 

FIRST SIXTY-DAY PERIOD. 





Average gain of sows. 


Average gain of barrows. 


Lot I 


83.2 
26.5 
33. 
16. 


71.8 


Xot II 


33.6 


Lot III 


26.3 


LotIV 


17.3 






Total 


158.7 


149.0 






Averaee 


39.6 


37.2 









Average gain of sows. 


Average gain of barrows. 


Lot I 

Lot II 


94. 
67 5 

38. 
45. 


72 6 
104.8 


Lot III 


51.5 


Lot IV 


105 7 






Total 


244.5 


344.6 


Average 


61.1 


83.6 







From the above tables it will be seen that during the first 
sixty-day periods there was an average gain of 2.4 pounds in 
favor of the sows; and during the second sixty-day period there 
was an average gain of 22.5 pounds in favor of the barrows; but 
for the two sixty-day periods there was an average gain of 10.1 
pounds in favor of the barrows. 

■f 

CONCLUSIONS FEOM THE EXPERIMENT. 

1. The pigs receiving corn-meal and separator skim-milk 
were the most hearty feeders and made the best gains. 

2. The cost per pound of gain was over two cents cheaper 
where skim-milk was fed with corn-meal and middlings. 

3. Corn-meal produced much better gains and at a cost of 
2.93 cents cheaper than middlings. 

4. During the entire exj)eriment the barrows made the best 
gains. 

5. The cost per pound of gain increased with the age of the 
pigs. 



Q^Jbj. 77- /Jl? 
/ fo .?- /9oy. 








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