Swine husbandry. A practical manual for the breeding, rearing and management of swine by Coburn Foster Dwight 1846-1924

Author:Coburn, Foster Dwight, 1846-1924. [from old catalog]
Language: eng
Format: epub, pdf
Tags: Swine. [from old catalog]
Publisher: New York, Orange Judd company
Published: 1913-03-25T05:00:00+00:00

pen B, were killed December 15th, and averaged 145 lbs. each; and, deducting the original weight at the eommencement of the experiment, each gained in the total period of 203 days 141 lbs, or 69Vi„» lbs. per diem—during a part of this time, (8 weeks), being fed on a mixed diet. One of the pigs from pen B having died, the other two were fed for 20 weeks on corn meal, and in 140 days gained 205i lbs., or 98^Vioo lbs., each pig, over their original weight, and at the rate of 73'/ioo per diem for this period. In the 20 weeks 935i lbs. of meal were consumed, equal to 16'/] o bushels of corn, and giving a return of 12Vio lbs. of pork for each bushel, and requiring 4^ lbs. of meal to make one ot pork.

The experiment of Mr. Lawes, of England, commenced February 2d, 1850, with 36 selected pigs in twelve pens, and were fed on several prescribed dietaries. The pigs were 9 to 10 months old, and at the time of selection differed among themselves but a pound or two, and when the experiment began averaged 143^ lbs., but a fraction less than those of Prof. Miles when his were killed, and the two might be considered in the light of a continuous experiment—Lawes beginning were Miles ended.

We select for investigation and comparison pen No. 5, containing three pigs, averaging 143V lbs., because they were fed exclusively on corn meal.

The experiment lastoil 8 weeks, or 56 days, during which time each pig consumed 362 lbs., or 6^*/oo bushels of meal, and e^/ioo lbs. dally, and gaining 79'^''/io.' lbs. of weight, or l"/ioo lbs. per diem, and at the rate of 12 lbs. per bushel; a very remarkable aTjreenient betwixt Edge, Miles, and Lawes.

An analysis of the experiments, both of Miles and Lawes, shows very clearly a rapid decrease in the rate of consumption of food to a given weight of animal as it fattens ; and, although less food is eaten, it takes more of it to produce one pound of increase, so that, as the animal approaches his maturity of fatness, or, as it is termed in England, " ripeness," he may reach a point where the return in pork will not pay for the corn consumed. This point should be watched for and the pig at once sent to market.

At the conclusion of Miles' experiment, the pigs increased less than two per cent in a week.

Prof. Miles remarks of his experiments:

" In the manufacture of pork the best return of tlie food consumed will undoubtedly be obtained by liberal feeding during the early stages of growth; and we cannot reasonably avoid the conclusion that the same rule is applicable to all animals reared for the purpose of the butcher.

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