The mode of feeding animals, designed for the table, has also great influence on the quality of the flesh, so much so, that nice judges can distinguish whether mutton, if from the same breed of sheep, has been fed on grass or on turnips; and can tell, still more accurately, on tasting the fat of pork, whether the pigs have been fed on sour skimmed milk, brewers grains, or pease flour. It was the practice sometime ago, but now almost laid aside, to feed calves and oxen on oil cake. This did certainly fatten them, but the fat was rather rancid in most cases, and never of good flavour. The truth seems to be, that, though generally, the lean of fat animals is the most tender and palatable, yet that this is not so much the case when the fat is rapidly produced by artificial management in the feeding.
Sheep become very rapidly fat in the first stage of the rot, in consequence, perhaps, of their desire for food being greatly increased by the disease; and, taking advantage of this, it is said that some butchers are in the practice of producing rot artificially, which is certainly very blameable. Some amateurs of mutton are fond of such as has died of a sort of colic, called in the North braxy, that produces a very peculiar flavour in the meat, which is always, however, roasted, and never stewed or boiled. Such tastes are, to say the least of them, surely unnatural.
It is, perhaps, owing to the different quality and quantity of food, as much as any thing, that the season of the year has an effect upon the flesh of animals; the heat or cold of the weather, and in some cases, the periodical return of sexual attachment, must also be taken int to be out of seasono account. In the instances of veal and lamb, the words, in season, and out of season, refer, perhaps, more to plenty and scarceness than to any quality in the meat; for as soon as any thing is so plentiful in the market as to cause a fall in the price, and bring it within reach of the poor, then the wealthy classes pronounce it to be out of season.
This is the case with some sorts of birds which migrate at certain times of the year, the woodcock for example, and are on that account to be valued when they can be procured. Such as breed here, the solan goose for example, can be procured in the young state before they take their flight to their unknown retreat.
It has been roundly asserted, that there is no bird, and no part of any birds, which may not be safely used as food. Many species, however, are very oily, tough, or bad flavoured, and it is not at least very desirable to eat any animal which feeds on prey or carrion; even though this did not, as it does, taint their flesh. The qualities of the flesh of birds differ very much, both in the several species, and in particular parts of the same bird.
The flesh of birds which live on grain, is for the most part preferred to those which feed on insects or fish.
The pheasant, the turkey, as well as partridge, and moor game, are more esteemed than goose, duck, or woodcock.
Many of the water birds, however, are preferred, though from the nature of their food, they are apt to taste strongly of fish, and to become too fat and oily: to remedy these defects, skilful cooks sometimes bury them under ground for some days, and carefully remove all the skin, and as much as possible of the fat and oil from the inside, before dressing them.
Of the several sorts of birds, those of larger size are coarser and more tough than the smaller sorts; bustards, and larks, and ortolans, for example, than swans, or turkeys, and geese. This difference is also rendered greater in proportion to their age.
With regard to the particular parts of the same birds, the flesh of the wing, and the part of the breast nearest the wing, consisting of the muscles exerted in flying, are more dry, tender, and of a whiter colour than the muscles of the leg. This, however, is not the case with black game, in which the more superficial of these muscles are dark-coloured, while those deeper seated are pale; and the same is sometimes seen in other birds. The belly and the muscles of the thigh, when young enough, or when long kept and properly cooked, are both palatable, juicy, and sufficiently tender. The tendons of these muscles, however, are very tough, and at a certain age become cartilaginous and even bony.