ÆäÀÌÁö À̹ÌÁö
PDF
ePub
[merged small][merged small][merged small][ocr errors][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small]

FIG. 44. A dipping plant figured in the Agricultural Journal, 1894, p. 620, in use in South Africa.

[graphic][merged small][merged small][merged small]

FIG. 45.-A dipping plant in use in Millard County, Utah: A, chute from the large corral; B, a sloping board over which the sheep in attempting to pass to the decoy pen & slide into the tank D; K, K, two pieces, 2 by 6 inches and 12 feet long, bolted lengthwise of the tank, leaving a 12-inch space in the middle of the dip through which the sheep must put their heads, preventing those in rear from riding those in front, at the same time keeping their backs under the dip. (Copied from Powers' The American Merino, 1887, p. 308.)

which stand in the way and block the others at the end of the swim, the landing stage opens out from 1 foot 10 inches at top and 11 inches at bottom to a width (top and bottom) of 6 feet at a distance of 6 feet 3 inches (longitudinally) from the end of the swimming race, and gradually widens for the remaining 8 feet of length to a width of 7 feet at the end.

[merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

FIG. 46. A triple vat. The various diagrams give surface view, cross section, vertical section of entrance to the vat, and vertical section of the incline and dripping pens.

[blocks in formation]

FIG. 47. A circular dipping tank. (Copied from the Agricultural Journal, 1895, p. 119.)

return to yards 1 and 2. If the animals hesitate to enter yards 3, 4, 5, and 6, another natural tendency of the sheep may here be turned to account. A man jumps over the fence and runs through the flock in the opposite direction (6, 5, 4, 3) to that in which the animals are wanted to move. This will generally result in starting the sheep in

[blocks in formation]

From the exit of yard 6 (BC) there should be built a narrow run extending to the dipping vat. This run should be about 20 feet long by 24 feet wide, and should be provided with sides high enough, especially near the vat, to prevent the sheep from jumping over and thus escaping. These sides should be continued a short distance along both sides of the vat. The last 5 feet of this run should slant downward toward the vat at an incline of 25 to 30 degrees, and should be

Circular

Swim

smooth.

By pouring upon it some of the dip it may be made slippery, so that the sheep will slide into the vat. If there is no natural incline toward the vat, an incline may easily be made by raising the floor of the run at a point 5 feet from the vat. The sheep will then pass up the incline x to the highest point y, then down the incline chute z.

Much time will be saved in dipping if the yards and run are arranged in such a way that the sheep in the race can not see the dipping vat. This can be accomplished by either of two simple

[graphic][merged small]

methods: First, the run, instead of being straight, may be built with a sudden angle at the point y (see fig. 37); the vat will then not be visible to the sheep ascending the incline ; or, second, if a straight run is built, as shown in fig. 37, a loose curtain of bagging may be hung at the point where the run joins with the vat. This curtain will fall back into place as the sheep drop into the vat.

A modification of the circular pen is seen in fig. 38, taken from Gibson's (1893) History and Present State of the Sheep-Breeding Industry in the Argentine Republic.

CHUTES, OR SLIDES.

The most simple kind of chute is made by using an incline at the end of the run, as shown in fig. 37.

A second kind of chute in use is the endless-chain or treadmill chute, shown in fig. 39. Its construction can be seen from the diagram and need not be described in detail. This chute may be improved by building it on a slant toward the vat, in which case a bolt

[merged small][merged small][ocr errors][merged small][ocr errors][ocr errors][merged small][merged small][merged small][graphic][subsumed]

FIG. 50.-A double oblong swim: 4, ground plan; B, side view of the middle partition; C, longitudinal section of the first swim; D, longitudinal section of the second swim, with incline; E, cross section of the entire vat, with partition in the center.

or other arrangement must be attached to stop the chute when desired; the weight of the sheep on the movable chute will help to carry the animals toward the vat.

A third chute in use is a pivoted platform, shown in fig. 40. The sheep walk out on the platform until they overbalance its free end, and then, when a sliding bolt is removed, fall into the tank. The structure of the chute may be seen from the figure. Accidents are

« ÀÌÀü°è¼Ó »