The Pig: Breeding, Rearing, and Marketing

by Sanders Spencer

A similar plan was adopted by Messrs. Harris of Calne who purchased some hundreds of boars of the Large White breed, and at first lent them on certain conditions to pig breeders, but later on resold the young boars by auction for whatever they would fetch, their object being to secure the use of these boars in order to render the farm pigs more suitable for the purposes of their trade as bacon curers.

There may or may not be any grounds for the belief that the sire has a greater influence in the external form of the joint produce than does the dam, but this belief has also had its influence in determining breeders of cross breds to use the pure bred sire on the ordinary stock of the country, rather than the reverse way. There is no doubt that apart from the improvement in the general quality of the produce of the pure bred sire there results a general uniformity of the young stock, which is a great recommendation when they are placed on the market either as stores, or when fattened for the butcher or bacon curer. This uniformity of type and character in the young stock would be more noticeable still if the buyers of the pure bred sires were to continue their purchases from the same herds, providing that the owners of them were sufficiently careful in avoiding incestuous breeding.

So many people appear to be content with the knowledge that the sire which they are purchasing has a recorded pedigree and is a pure bred sire eligible for entry in the herd book of its breed, but they forget that it is possible in the crossing of two pedigree animals of a similar breed to obtain as great a mixture of blood and points as in the mating of two cross-breds or two come-by-chances. Uniformity in a herd, stud, or flock can only be rendered comparatively certain by the continued use of sires of similar breeding. In making a compound, its character is determined by the proportion of the various ingredients used in its manufacture. So it is in the breeding of stock, those points which are most predominant in proportion in the blood of the sire and dam will, on the average, be represented in an equal degree in the joint produce. This it is which renders so impressive a sire which is descended from closely bred parents. Each of its forbears has handed down a proportion of its own particular characteristics so that the larger the number of animals amongst its forbears which possessed these particular points the greater the certainty of their being possessed by the produce. The meaning of this may be made more clear by pointing out that the result of the mixing together of various mixtures will depend entirely on the proportion of the substances used in the manufacture or compounding of those mixtures. In each animal is embodied the characteristics of its forbears.

There exists generally an opinion that the produce of two parents of distinct breeds, or as it is termed a first cross is commonly superior to a pure bred of either of the two breeds represented by the parents. It is difficult to discover the cause of this, if it be a fact. If one of the parents were deficient in stamina the produce might conceivably be more robust, and it might also occasionally happen that the mixture of the qualities or properties possessed by the parents would result in improvement, as happens when a distinct new breed is originated; but as a rule the good and the bad qualities of the produce from the mating of two animals of diverse breeds are in direct proportion to the qualities possessed by the parents.

The mere mixing of the blood of two animals differently bred cannot increase the good or bad properties, but the combination might possibly result in a blend more suitable for the purpose in hand.

Another claim commonly made for the crossing of animals is that the risk of that delicacy of constitution which they assert is far too common amongst pure bred animals, and is due to close breeding, is hereby avoided. It must be admitted that in times past there was a certain amount of cause for this complaint of want of constitution amongst pedigree animals, but the cause has been considerably if not entirely removed by the more careful recording of the breeding, and by the more drastic screening out of any animals suspected of delicacy of constitution.

The buyers of pure bred animals for crossing purposes have also become more careful in their selection. They have ceased to imagine that because the owner of certain animals most of which he has purchased is successful in winning prizes at the chief agricultural shows, the whole of the animals in his stud, herd, or flock must be of equal excellence or at all events sufficiently good for the production of profitable commercial stock. Action on this mistaken belief has led to much disappointment in the past, since the home bred animals may have been of totally different blood from those which have won prizes, and further they may not be inbred for a sufficiently long time on distinct lines to render them prepotent enough to impress their good qualities on their produce.

Amongst the objections made to cross-breeding is the heavy cost of replacing the breeding stock, as to obtain a first cross, a succession of sires and dams must be purchased. Many persons meet this difficulty by merely buying sires of a breed similar to the first used, but then the produce ceases to be cross-breds and become grades until such time as by the use of a certain number of sires of a similar breed the produce become eligible for entry in the herd book of the sires which have been continuously used. This system of breeding insures a greater uniformity in the produce providing that the sires selected are of similar breeding, type, and character, than even by the system of crossing sire and dam of two pure breeds.

The risk attending too close breeding as in the breeding of pure breds is also avoided provided that the herd from which the sires are bought is sufficiently large to furnish a change of blood, yet of similar breeding.

No one possessing a knowledge of the ordinary farm stock of the country will for one moment deny that there is still vast room for improvement in our live stock, and particularly in our pigs, and it is equally the fact that our Government has not shown a readiness equal to that of some foreign Governments, and even of the authorities in some of our colonies to assist farmers in obtaining the use of improved sires. Take Canada as an instance. For years the Dominion Live Stock Branch has been purchasing and delivering free into districts needing them, male animals for the use of farmers and stock owners free, save stallions, for which a covering fee has to be paid sufficient to cover the insurance of the stallion. The other important condition which relates to all the sires provided by the authorities is that the cost of maintenance shall be paid by the Local Association which has the management of the sire and the arrangement of its services.