(1) The biological characteristics of the sheep in the ring site selection are the living environment of hi dryness, cleanliness, repulsion and pollution. Therefore, the address of the house should be conducive to the health, reproduction and high yield of the sheep, and it should be conducive to breeding, composting and Protect forests and the surrounding environment. According to this requirement, the address of the shed should be selected where the terrain is high, the soil is dry, the drainage is good, the sun is well-ventilated, and the earth washer is convenient. In general, it should not be built in a residential building where people live. (b) General requirements for sheep houses 1. The sheep house area should have enough area, and the circle is too small, which can easily cause the sheep to be crowded, dampness in the house, cloudy air, and damage to the health of the sheep. The sheep house is too large and causes waste. , is not conducive to winter insulation. The area of ​​the sheep house should be based on the sheep's sex, size, and the number of different physiological periods and the number of sheep. The average area required for each type of sheep (m2/only) is 1.5 to 2.0 for rams, 1.0 for ewes, 0.8 to 0.9 for bred sheep, 1.2 for pregnant or nursing ewes, 0.5 for weaned lambs, 0.6 to 0.8 for mutton sheep. . Individual larger sheep may increase slightly. 2. The height of the high width clay sheds in the sheep house can be built with the degree of hardness of the soil, usually 2.2 meters to 3.2 meters, with a width defined; the height of houses is generally 2.3 meters to 2.5 meters and the width is 7 meters to 10 meters. The length can be based on the number of sheep. 3. Construction materials Sheep house construction materials should be based on the material, to the principle of durability, available stone, wood, adobe, earth walls, bricks, branches, straw and other materials. 4. The gates of the gates and ground sheep houses should be wider to prevent sheep from entering and leaving the crowded areas, causing the miscarriage of the ewes. The windows should be taller, and the lower frame of the window should be generally more than 1.5 meters above the ground (other requirements for plastic warm houses) so that there is enough light in the sheep house. The sheep house floor should be more than 20 cm above the surrounding ground to prevent rainwater from entering the house and keeping it dry. (3) Types of sheep houses 1. Cave houses are unique in the Loess Plateau. Caves dug in the form of slopes are used as sheep sheds. They are characterized by the saving of building materials, cool in winter and cool in summer, economical and practical, and safe and reliable. During the excavation, according to the number of sheep, a hole is built to several holes. The deeper caves can be unsettled with doors and windows, the kiln mouth is open, and the cave windows can be covered with small windows or windows. The outer circle of the cave dwelling is surrounded by a square or semi-circular space with a soil wall or a wooden fence according to the number of sheep, and a lap door is opened to serve as a playground and a place for feeding sheep. Cavehouses should be built with safety in mind to prevent collapse. For caverns that are not rigid in soil, they should be tied with adobe (sun dried) to make them strong and firm. 2. The combination of the house and the open-air ring outside the house is the house circle. The house is generally rectangular. The center of the roof is ridged, with slopes on both sides; the walls are made of bricks, stones, adobe or earth walls. The door is located in the south or east, is a double door with a width of 1.2 meters or more, the south and north walls should have windows, the south window is larger than the north window, the south wall should have multiple windows, and the north can have 1 or 2 windows. . This kind of house is ventilated in the summer, is light-transmitting, relatively cool, sunny in the winter, sheltered and warm. Outside the open space can be surrounded by adobe or bricks and branches, and install the door. 3. Plastic film warm shed sheep house "warm circle three points", in the cold in the north using plastic film greenhouse sheds, can increase the temperature of the sheep house, is conducive to the survival of the lamb breeding, normal growth and development, is conducive to fattening sheep mutton The increase in feed remuneration and economic efficiency in raising sheep is a new technique that has been widely promoted in recent years. (4) Other equipment in the sheep house 1. Feed trough The feed trough is an indispensable facility for raising sheep. Feeding sheep with it will not only save feed but also be clean and hygienic. Bricks, stones, cement, etc. can be built into fixed feed troughs, and wood can also be used to make mobile feed troughs. There are two kinds of feed troughs: one is a conical body that is built in the center of the trough. The trough surrounds the cone around the circumference. A brick wall with an entrance hole of 50 cm to 70 cm is built along the outer edge of the trough. The sheep are scattered around the trough to feed; one is a long trough, which can be built on the side of the trough (on the side of the standing sheep) with a perforated brick wall that allows the sheep's head to enter, or made of wood with holes. Fence for sheep to eat. The size of the hole can be adjusted according to the size of the column hole where the sheep can be installed with corners and no corners. 2. The straw holder The straw holder is used to feed long grass and can be made of wood, bamboo, steel, etc. There are two common types of straw weeds: (1) Simple straw frame: first use a brick or stone to form a wall, or directly use the wall of a sheep pen and then bury several wood or bamboo rods with a height of 1.5 meters or more into the soil. The bottom of the wall, the upper end is inclined at an angle of 25 degrees, and the upper end of each vertical bar is fixed on a cross bar. The two ends of the bar are respectively fixed on the wall. (2) wooden activities: first make a three-dimensional rectangular frame with a height of 1 meter and a length of 3 meters, and then use a wooden strip of 1.5 meters high to make a "V"-shaped haystack with a spacing of 12 cm to 18 cm. Finally, the grass frame is fixed between the three-dimensional wooden frame. China Agricultural Network Editor
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