544 QUEENSLAND AGRICULTURAL JOURNAL. [1 Dec., 1901. 
Agricultural College. The main purpose was to compare the breeds of swine 
(1) with regard to their relative economy of production, and (2) with regard to 
their suitability for the export bacon trade. 
Six animals of each of the Large York, Tamworth, Berkshire, Chester 
White, Poland China, and Duroc Jersey breeds were employed. The pigs were 
fed upon various combinations of Indian corn, wheat, middlings, and barley, 
and were from ten to twelve weeks old. At the outset they were given a small 
allowance of skim milk, in addition to the mash already specified, but, as the 
supply of this skim milk was the same for all breeds, it was not taken into 
consideration in working out the results. Briefly put, the net outcome was as 
under :— 
AVERAGE Datny Garin PER Pra. 
Lb. 
Yorkshire a aD rs = ot: 93 
Duroc Jersey oe om x: “a3 ‘88 
Berkshire... =e Ay oy 80 
Poland China = tk <r = ‘70 
Chester White i ~— ee a 66 
Tamworth ... oth at te 5 64 
Worked out according to the quantities of the different combinations of 
meal required by the different breeds to produce 100 Jb. of gain in weight, the 
positions were as follows :— 
Meat Requrrep For 100 ip. INcREASE. 
Lb. 
Berkshire... a0 Sex) we ann 409 
Yorkshire... om wx) = 429 
Duroc Jersey . 426 
Chester White in ‘ k t ia ; i 433 
Tamworth ... Ae tH on inks 462 
Poland China ai =e vie - ATA 
Similar experiments have been in progress at the college for five years, 
and during that period the relative positions of the different breeds, with 
regard to economy of gain, have varied very considerably. For purposes of 
comparison we reproduce a table showing how they stood in 1899 and 1898, 
as compared with this year :— 
1900. 1899. 1898. 
1. Berkshire Berkshire Yorkshire 
2. Yorkshire Tamworth Berkshire 
3. Duroc Jersey Yorkshire Duroc Jersey 
4, Chester White Chester White Tamworth 
5. Tamworth Duroc Jersey Chester White 
6. Poland China Poland China Poland China 
When they came to be slaughtered and tested as regards suitability for 
the export trade, the Yorkshires, as usual, were an easy first. In his notes 
upon the experiment, the farm Super end ene reports in this connection :— 
‘““Yorkshires have again taken the lead as to suitability for export. These pigs 
have shown a decided advantage in qual over all the breeds in the average 
of the five experiments. Tamworths, for some unknown reason, did very 
badly this year; in the average of the five experiments, however, they would 
rank second in suitability for the export trade. Berkshires made a good show, 
though some of their mee were faulted for shortness and a common tendency 
for the fat to arch over the top of the shoulder. They did not, therefore, 
make ideal sides, and were inferior to the Yorkshires in general suitability for 
export. Over the five experiments they stand third in point of quality to the 
Yorkshires and Tamworths for suitability for the British markets. Of the 
other breeds it may be said that on the whole they proved decidedly unsuitable 
for the export trade.” —Garden and Field. 
