With the development of the aquaculture industry, how to develop feed sources is a very real problem for the majority of farmers. However, many green feeds are consumed in vain, and some are burnt away after being dried, which wastes resources and pollutes the environment. An easy way to return the straw to the abdomen is to make silage. MWj China Feed Industry Information Network - based on feed, serving animal husbandry
Fresh grass, freshly harvested corn straw, wild grass and other green fodder through silage, not only maintain the original nutrition, but also enhance palatability, silage preservation time is long, feed nutrient loss is small, storage volume is small, easy to make, take It is convenient to use; it has aromatic sweet and sour taste, rich nutrition, can improve feed conversion rate, can solve the lack of green feed for livestock in winter and spring hay, ensure the normal growth and development of livestock, improve the breeding rate and the survival rate of its breeding.
To make green fodder, you must first build a silage. Silos must be built on high ground, solid soil, low groundwater level, and far from the pool and pit. The silage can be round and rectangular, surrounded by brick and stone, and sealed with plastic film.
Various green feeds require a moisture content of about 60%. When prefabricating, a layer of material is applied to the concrete, and the large concrete can be mechanically compacted. In order to exclude the air between the materials, the anaerobic conditions are caused by the lactic acid bacteria. The middle part of the pile should be 1-2 meters higher than the cornice. After forming a round top, it should be covered with plastic film. Then the soil is sealed tightly. The thickness of the soil should reach 30-40 cm. The raw material will sink in a few days, and the dome will be In the case of cracks, it is necessary to add soil seals in time to prevent leakage of water.
After 30 days of fermenting and ripening, the green fodder can be fed. First check after opening. If the green feed is yellow-green and has a distiller's taste or a fruity aroma, the silage is successful. If the beverage is mildewed and deteriorated, it cannot be used. To prevent poisoning of livestock after eating.
When feeding the animal husbandry, how much to eat, keep it fresh with the use; keep the remaining materials in the animal husbandry in time to prevent the bad appetite, the winter and spring feeding effect is good, because the temperature is high, it is difficult to save after the opening , the material is easy to change the taste.
Winter springs such as green icing, should be fed after melting; silage has a laxative effect, can not be purely fed, pregnant animals are properly fed less to prevent miscarriage. For example, if the green feed acid is high, use 3-5% lime milk or 9-10% baking soda water, add 10-20% of the silage weight, stir well, and feed again after neutralization. Cover each time after reclaiming, in order to prevent the inflow of rain and snow, to avoid mildew and deterioration.
Forstner Bits
Forstner bits, flat-bottomed to drill holes in wood materials, they can cut on the edge of a block of wood, and can cut overlapping holes; for such applications they are normally used in drill presses or lathes rather than in hand-held electric drills. Because of the flat bottom of the hole, they are useful for drilling through veneer already glued to add an inlay.
The bit includes a center point which guides it throughout the cut (and incidentally spoils the otherwise flat bottom of the hole). The cylindrical cutter around the perimeter shears the wood fibers at the edge of the bore, and also helps guide the bit into the material more precisely.
Forstner bits have radial cutting edges to plane off the material at the bottom of the hole. The bits shown in the images have two radial edges; other designs may have more. Forstner bits have no mechanism to clear chips from the hole, and therefore must be pulled out periodically.
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