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ed to a loss of vitality amongst the so-called pedigree stock, and this weakening of the constitution showed itself in a reduction in the number of the offspring and in the power of the dam to furnish its young with a full supply of well-balanced milk. There is little doubt that in the third quarter of the past century a considerable proportion of the pedigree sows were not so prolific as they ought to have been, nor did they produce and rear thoroughly well so many pigs at each litter as the common sow of the country was capable of doing. A more general study of stock breeding has tended to compel attention to the practical apart from the show points of pedigree pigs, but probably the strongest influence has been the formation of the various breed societies, and the registration of the produce including the number, sex, and sire of the pigs. These entries most clearly showed those breeders of pigs who had paid most attention to the utility points of their pigs, especially those particular points in which pedigree pigs were generally believed to be deficient. The succeeding records of sows of the same families afforded the best possible confirmation of the belief which was becoming general that prolificacy like many other qualities was most certainly hereditary. This recorded proof that pure bred animals and especially pigs were not necessarily slow breeders, helped vastly to increase the demand for pedigree animals for crossing purposes in the breeding of commercial stock. The enormous benefit which has resulted from the use of pedigree sires is most clearly proved in the Irish live stock. The so-called premium bulls and boars are pedigree animals purchased by or with the sanction of the Live Stock Commissioners and placed at the service of the general public at a somewhat reduced fee, the Government paying to the owner an annual premium of some [L]15 for each bull, and a certain sum for each boar. It is alleged that the original improvement in the ordinary pig stock of those parts of Ireland where pig-keeping on a considerable scale is followed, was due to the purchase in England of numbers of Large White boars, as after experiments carried out in Denmark, these boars were found to effect the greatest improvement in the common country pigs and to render them far more suitable for conversion into the kind of bacon which was in most general demand, and of course realised the highest price. For the beginning of the
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