Prof. Stewart states that cabbage for milch cows has about the same feeding value as sweet corn ensilage, and makes the value not over $3.40 per ton. Now it is admitted by general current that the value of common ensilage, which is inferior to that made from sweet corn, is, when compared with good English hay, as 3 to 1. This would make cabbages for milch cows worth not far from $7.00 per ton.
When cabbage is kept for stock feed later than the first severe frost, if the quantity is large there is considerable waste even with the best of care. The loose leaves should be fed first, and the heads kept in a cool place, not more than two or three deep, at as near the freezing point as possible. If it has been necessary to cut the heads from the stumps, they may be piled, after the weather has set in decidedly cold, conveniently near the barn, and kept covered with a foot of straw or old litter. As long as a cabbage is kept frozen there is no waste to it; but if it be allowed to freeze and thaw two or three times, it will soon rot with an awful stench. I suspect that it is this rotten portion of the cabbage that often gives the bad flavor to milk. On the other hand, if it is kept in too warm and dry a place, the outer leaves will dry, turning yellow, and the whole head lose in weight,—if it be not very hard, shrivelling, and, if hard, shrinking. If they are kept in too warm and wet a place, the heads will decay fast, in a black, soft rot. The best way to preserve cabbages for stock into the winter, is to place them in trenches a few inches below the surface, and there cover with from a foot to two feet of coarse hay or straw, the depth depending on the coldness of the locality. When the ground has been frozen too hard to open with a plough or spade, I have kept them until spring by piling them loosely, hay-stack shape, about four feet high, letting the frost strike through them, and afterwards covering with a couple of feet of eel-grass; straw or coarse hay would doubtless do as well.
I have treated of cabbage thus far when grown specially for stock; in every piece of cabbage handled for market purposes, there is a large proportion of waste suitable for stock feed, which includes the outside leaves and such heads as have not hardened up sufficiently for market. On walking over a piece just after my cabbages for seed stock have been taken off, I note that the refuse leaves that were stripped from the heads before pulling are so abundant they nearly cover the ground. If leaves so stripped remain exposed to frost, they soon spoil; or, if earlier in the season they are exposed to the sun, they soon become yellow, dry, and of but little value. They can be rapidly collected with a hay fork and carted, if there be but a few, into the barn; should there be a large quantity, dump them within a convenient distance of the barn or feeding ground, but not where the cattle can trample them, and spread them so that they will be but a few inches in depth. If piled in heaps they will quickly heat; but even then, if not too much decayed, cattle will eat them with avidity. Cabbages are hardy plants, and loose heads will stand a good deal of freezing and thawing without serious injury. They are not generally injured with the thermometer 16° below freezing. The waste, after the seed and all market cabbage are removed, brings me about $10 per acre on the ground, for cow feed.
If cabbage is fed to cows in milk without some care, it will be apt to give the milk a strong cabbage flavor; all the feed for the day should be given early in the morning. Beginning with a small quantity, and gradually increasing it, the dairy man will soon learn his limits. The effect of a liberal feed to milk stock is to largely increase the flow of milk. Avoid feeding to any extent while the leaves are frozen.
An English writer says: "The cabbage comes into use when other things begin to fail, and it is by far the best succulent vegetable for milking cows,—keeping up the yield of milk, and preserving, better than any other food, some portion of the quality which cheese loses when the cows quit their natural pasturage. Cows fed on cabbages are always quiet and satisfied, while on turnips they often scour and are restless. When frosted, they are liable to produce hoven, unless kept in a warm shed to thaw before being used; fifty-six pounds given, at two meals, are as much as a large cow should have in a day. Frequent cases of abortion are caused by an over-supply of green food. Cabbages are excellent for young animals, keeping them in health, and preventing 'black leg.' A calf of seven months may have twenty pounds a day."
RAISING CABBAGE SEED.
Cabbage seed in England, particularly of the drumhead sorts, is mostly raised from stumps, or from the refuse that remains after all that is salable has been disposed of. The agent of one of the largest English seed houses, a few years since, laughed at my "wastefulness," as he termed it, in raising seed from solid heads. In our country, cabbage seed is mostly raised from soft, half-formed heads, which are grown as a late crop, few, if any of them, being hard enough to be of any value in the market. Seedsmen practise selecting a few fine, hard heads, from which to raise their seed stock. It has been my practice to grow seed from none but extra fine heads, better than the average of those carried to market. I do this on the theory that no cabbage can be too good for a seedhead, if the design is to keep the stock first-class. Perhaps such strictness may not be necessary; but I had rather err in setting out too good heads than too poor ones; besides, the great hardness obtained by the heads of the Stone Mason, makes it possible, at least, that I am right. Cabbage raised from seed grown from stumps are apt to be unreliable for heading, and to grow long-stumped, though under unfavorable conditions, long-stumped and poor-headed cabbage may grow from the best of seed. To have the best of seed, all shoots that start below the head should be broken off. To prevent the plants falling over after the seed-stalks are grown, dig deep holes, and plant the entire stump in the ground. Scarecrows should be set up, or some like precaution be taken, to keep away the little seed-birds, that begin to crack the pods as soon as they commence to ripen. A plaster cat is a very good scarecrow to frighten away birds from seed and small fruits, if its location is changed every few days.
I find that the pods of cabbage seed grown South are tough, and not brittle, like those grown North, and hence that they are injured but little, if any, by seed birds. When the seed-pods have passed what seedsmen call their "red" stage, they begin to harden; as soon as a third of them are brown, the entire stalk may be cut and hung up in a dry, airy place, for a few days, when the seed will be ready for rubbing or threshing out. Different varieties should be raised far apart to insure purity; and cabbage seed had better not be raised in the vicinity of turnip seed. There is some difference of opinion as to the effect of growing these near each other; where the two vegetables blossom at the same time, I should fear an admixture. When the care requisite to select good seed stock, and the trouble, and, often, great loss, in keeping it over winter, planting it in isolated locations, protecting it from wind and weather, guarding it from injury from birds and other enemies, gathering it, cleaning it, are all considered, few men will find that they can afford to raise their own seed, provided they can buy it from reliable seedsmen.