Abstract diversify power in these times is vitally important for all the companies responsible for producing products like milk and meat, among others. Due to this and the problem of ever-increasing erosion of soils increased, specifically which becomes in gullies, is performed this research take advantage where gullies which are not more than ditches that exist in soils, specifically and in greater proportion and depth where are these – to produce silage; When used to them as silos allow me in the same field to elaborate for the time dry a new food, using the remains of crops and abundance of forages in the rainy season. At the same time that we have protected the gullies of the effect of water erosion and contribute to eliminate them in a time that if well won’t short, if it allows that it is can go restored him vitality to this ground, where economic, social and environmental impact is very high for all the advantages and benefits offered by this technique of producing silage in the gullies of the soil, something that could corroborate in the CPA Abel Santamaria, where it started the investigation; in the subsistence of the Faculty of Agronomy of mountain of San Andres and subsequently in the UBPC Moncada and with some small producers in the region of San Andres y Vinales. In all the places mentioned above this variant is being used to produce food. Table of contents chapters pages introduction material and methods. 6. Results and discussion.
8 Conclusions 17 recommendations 18 Bibliography. 19 Annexes introduction soils are showing for many years in numerous countries, including Cuba, which is not exempt from this, multi-table between medium and severe damage. This situation worsens every day. Degradations are caused by the rapid growth of world population and its economic activities, whose consequences are in over-exploitation, modification of areas covered with vegetation, crushing of soils, as well as levies through toxic, organic and inorganic substances.
Metal pipes are made by rolling, welding (or soldered), pressing, drawing, and a combination of these methods, as well as extract from the molten metal and casting. It should be borne in mind that the tubular products turns out not only round, but fitting, as well as a variable cross-section diameter and wall thickness. Metallurgical plants producing pipes from carbon, alloy and high alloy steels, nonferrous metals and alloys of complex composition, bi-metal pipes, etc. Consider the most common methods of production of seamless and welded tubes, obtained using the methods of metal in a plastic condition. Production of seamless pipes hot rolling seamless pipe the manufacture of the first basic operation is flashing round ingot or billet in the sleeve, ie, getting a thick-walled tube. Characteristically, making a hollow sleeve is a very responsible operation that ultimately determines the quality of finished products and the performance of rolling equipment. Firmware harvesting usually is performed in mills, which by design is divided into roll (with obliquely positioned rollers), and disk mills with mushroom rolls. Follow-up sleeves rolled into a tube the required diameter and wall thickness can be performed on automatic mill, the mill pilgrim rolling on a continuous or triple roll mill.
Consider the main features of the receiving tube in these ways. Rolling mills are on automatic seamless pipes diameter of 57-426 mm and wall thickness of 3-30 mm. This method is most common. There is a layout of the equipment automatically mill, and tufted with two automatic one cage for the manufacture of pipes diameter of 140-426 mm. The initial product in this case, use the blank round, obtained by rolling in heavy-and trubozagotovochnyh mills. Workpiece diameter pipes are usually little different from the diameter of the finished pipe. Before rolling the metal is heated in the reheat furnaces or furnaces with a rotating circular hearth. The heated billet after centering the front end of a pneumatic tsentrovatelem for reduction in the flash tube and gage improve the capture of metal rollers comes to piercing mill.
When the firmware receives a blank 2-3.5 times the hood. The maximum value extraction does not exceed 4,5-4,8. Post-processing is performed on an automatic sleeve camp, which is a non-reversible stands duo, in rolls which are arranged sequentially around the gauges. The task of the metal in the rolls in the caliber arbor set, fixed on a long rod so that the gap between sending and gauge determines the thickness of the walls of the rolled tube. The deformation of the metal in this case occurs between the rollers and mandrel, with the addition of thinning the wall has been some reduction in external diameter of the pipe. Since rolling on a round mandrel in a single pass does not provide a uniform deformation of the tube wall on the perimeter, then have to give two and sometimes three passes with the rotation of the tube after each pass through 90 . Hood in one pass, usually no more than 1.4-1.6, and the total may be 1.5-2.1.
Good and sauces beautiful people, on this occasion I am going to introduce a new super direct production of Hollywood. From the creators of: Dear, kitchen with more iron, without cabbage or the Lord of proteins, for all of you waiting for spirulina, part II. And clearly that the director is Steven Spirulina!To be honest, this week we beat the records of questions. By facebook, twitter, web or mail, all consulted the same. That’s why I decided to continue with this theme, but this time directly talk about the chemical composition. If you have not read the previous article Spirulina, the super heroine of feed, better do it and then continuing with this. This algae is consumed our body is nourished with: protein: 55-70% carbohydrates: 15-25% fats (lipids): 5% mineral: 7% water: 3% according to a publication made in 1982 by Dr. Mauricio David spirulina is an ideal nutritional supplement which contains up to 70% proteins, in comparison with the content of the fish which is 20%, meat vaccine 19.3% and the Japanese soy a 34.3%.
It also has a 95% digestibility by what is easily absorbed by the intestinal membranes. The modern criteria to qualify the protein of a food are three: the net utilization of protein (UNP). The amount of the percentage of useful proteins proteins taking into account these criteria, IBN (British Institute of nutrition) synthesizes criteria by multiplying the amount of protein by the net utilization of protein and thus obtained the value of useful proteins from food. According to this criterion, the spirulina ranks second after the egg. FOOD protein useful % UNP %% of protein egg dry whole 44 94 47 40 62 65 Milk powdered Spirulina skimmed 30 82 36 integral soy flour 23 61 37 Brewer’s yeast 23 50 45 wheat germ 18 67 27 to avoid losing custom, I have to warn something.
Microalgae in general, especially the Blue-Green, they have a capacity important to absorb everything that is in the sea, especially heavy metals. Therefore I recommend consuming those that have passed proper sanitary and marketed control in specialized establishments. Now yes, I invite you consult me whatever they want here or by. Write us and we read next week and thanks for continue to choose feed with the heart and not so much with his eyes. Gift them the phrase of the week: not to consume anything that your great-grandmother does not recognize. : Pablito Martin.