Similarly the root crops play an important part in the general rations, whereas lucerne and rape make an admirable pasture for the running of stores and breeding sows. General experience has shown that when pigs which are being fattened for market have the run of a good pasture of these crops they do better and fatten on much less food. Consequently with some one or another or several of these crops to supplement the skim milk provided by the dairying operations, no more favourable conditions could well exist for the development of this adjunct to the dairying industry.

With suitable root and pasture crops there is no reason why pig raising should remain merely as an offshoot of dairying and farming operations. It is sufficiently remunerative even when all food has to be purchased on the open market to justify attention being devoted to raising alone. But such circumstances do not enter into the operation of the industry as managed in Australia. The close proximity of separating factories would in many districts make it possible for a breeder to entirely ignore the dairying side of the question. From these sources such supplies of skim milk as were considered an advisable supplement to the ordinary rations might easily be obtained. With only very limited supplies of skim milk pig raising and fattening affords wide scope for the investments of men with limited capital. F. C. Grace, of Warrnambool, Victoria, who recently went into the matter of the cost of producing pork, indicates the possibilities of the bacon industry in a report furnished to the State Department of Agriculture. In this account he states:—"Over 6 tons of live pork have been produced, and the average cost per pound for all rations with pigs of all ages has been 4 cents. The actual selling price has been 10 cents per pound, but a number of the pigs were sold as studs, somewhat above market price. Taking the average of all pigs sold in the open yards for bacon purposes, about 4-1/2 tons, the selling price was 10 cents per pound—a margin of over 6 cents per pound over and above the cost of feed."

This statement is of interest as showing the position of the industry when everything has been paid for at well above market rates for the produce, and in a degree serves to emphasise the much-improved position of the breeder who, with root crops and pasture land, is able to dispense with the costs incurred in purchasing foods for fattening purposes on the open market.

Throughout the Commonwealth there is a difference of opinion regarding the relative value of the manner in which the predominating breeds, the Berkshire and Yorkshire, are crossed in raising pigs for market. This no doubt will always exist, owing to predilection of breeders towards particular types, and to the relative merits resulting from the various crosses. The main point is that both breeds are wonderfully well suited to Australian conditions, and that they are prolific. Brood sows will, if kept in an ordinarily thrifty condition, farrow two litters of pigs in the year, which will number from eight to twelve pigs to the litter. If anything, the predominating cross favours the use of the Yorkshire boar with the Berkshire sow. The cross has this advantage that the litters will consist of all white pigs. The boar used should be pure and the sow of good type, preferably three-quarter bred. The average litter from such a cross is eight. These, if kept until about five months, will weigh out at about 140 lbs., and at 12 cents per lb., the ruling price, will return approximately $16.80 apiece, or $268.80 per year from each sow. In some instances as many as five litters may be obtained during a period of two years, but when this is done too much is taken out of the mother.

Another aspect worth considering in the choice of crossing these two breeds is that the Yorkshire sow is a better mother than the Berkshire, and the litters produced are larger. In this case there is a lack of uniformity in the colour of the litters, a fact which no doubt must often cause slight depreciation when the marketing of large numbers of pigs is taken into consideration. From experience in the Commonwealth the middle Yorkshire of a pure strain is more favoured for breeding purposes. He is a quicker grower, of hardy constitution, and as a rule a better shaped pig for market requirements.