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Manufacture ware pig Production

Manufacture ware pig Production

Mike D. Tokach, Bob D. Goodband, Travis G. Advancements in record-keeping, benchmarking, refinements in nutrient requirements, biosecurity, and increased sizes of meat-processing facilities have also contributed to increased productivity. Technology adoption has allowed for dramatic improvements in sow productivity, wean-to-finish growth performance, and carcass composition over the last 35 yr.

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Life Cycle of a Market Pig

VIDEO ON THE TOPIC: Pig Production in Abia State - Sabiagrik

Last updated: September 1, Y ou started your morning with ceramics—and they'll dominate your day. Inside your brick, cement, and glass home, you woke to the quartz clock, washed in the tiled bathroom, breakfasted on pottery cups and bowls. Maybe you worked all day at a computer packed with ceramic-based electronic components, like microchips , capacitors , or resistors , before heading back home for a glass of wine, gobbled down dinner from those same pottery plates, and sat in front of the liquid-crystal TV or Gorilla glass smartphone , before heading for bed and setting the quartz clock, ready to repeat again tomorrow.

Though it's far from obvious, we live in a ceramic world, just as people have for thousands of years. But what exactly are ceramics? Photo: A ceramic Percy Pig piggy bank. It started life as a soft piece of clay molded to shape, fired hard in a pottery kiln, then painted with bright colors.

Photo: Porcelain plates are very familiar examples of ceramics, but there are other, much more surprising uses of ceramics too. Glass, tiles, pottery, porcelain, bricks, cement, diamond, and graphite—you can probably see from this little list that "ceramics" is a very broad term, and one we're going to have difficulty defining.

What do all these very different materials have in common? From a chemical viewpoint, we define ceramics in terms of what they're not. So you'll find most science textbooks and dictionaries telling you ceramics are nonmetallic and inorganic solids ones that aren't metal or based on carbon compounds ; in other words, ceramics are what we're left with when we take away metals and organic materials including wood , plastics , rubber , and anything that was once alive.

Some books also try to define ceramics as "refractory" materials, which is a technical, materials science term that means capable of putting up with everyday abuses like extremes of temperature, attacks from acids and alkalis, and general wear-and-tear. It often seems easier to define materials in terms of their properties how they behave when we heat them, pass electricity through them, or soak them in water, for example.

But once we start doing that, things can get confusing. For example, graphite a form, or allotrope, of carbon is considered a ceramic because it's nonmetallic and inorganic, yet unlike most ceramics it's soft, wears easily, and is a good conductor of electricity. So if you looked only at the properties of graphite, you wouldn't consider it a ceramic at all. Diamond another form of carbon is also a ceramic for the same reason; its properties couldn't be more different from those of graphite, but they're similar to those of other ceramics.

Like modern ceramics such as tungsten carbide, diamond has long been used in cutting and drilling tools. People first started making ceramics thousands of years ago pottery, glass, and brick are among the oldest human-invented materials , and we're still designing brand new ceramic materials today—things like catalytic converters for today's cars and high-temperature superconductors for tomorrow's computers.

There's quite a big difference between age-old, general-purpose ceramics like brick and glass and modern, engineered ceramics that are sometimes designed for a single, specific purpose, such as filtering soot from a truck's dirty diesel engine or making a drill bit that lasts five times longer. That's partly why materials scientists like to divide ceramics into two kinds: traditional, and advanced or engineering ceramics. Photo: Traditional ceramics: Toilets are a good example, though the lid and seat are typically made of plastic or wood.

Bricks, pottery, glass, porcelain, tiles, cement, and concrete are our classic, time-tested ceramics. Although they all have different uses, we can still think of them as general-purpose materials. Take tiles, for example. We can put them inside our homes or outside; on the walls, the floors, or the roof; and we can stick glass in our windows or poke away at it on our smartphone screens—we can even drink champagne out of it.

Ceramics like this are ancient materials—ones our ancestors would recognize—that have gradually found more and more uses as the centuries have worn on. By contrast, advanced ceramics are ones that have been engineered mostly since the early 20th century for highly specific applications.

For example, silicon nitrides and tungsten carbides are designed for making exceptionally hard, high-performance cutting tools—though they do have other uses as well. Most modern engineered ceramics are metal oxides, carbides, and nitrides, which means they're compounds made by combining atoms of a metal with oxygen, carbon, or nitrogen atoms. So, for example, we have tungsten carbide, silicon carbide, and boron nitride, which are hard, cutting-tool ceramics; aluminum oxide alumina and silicon dioxide are used in making integrated circuits "microchips" ; and lithium-silicon oxide is used to make the heat-protective nose cones on space rockets.

High-temperature superconductors are made from crystals of yttrium, barium, copper , and oxygen. Not all high-tech ceramic materials are simple compounds. Some are composite materials , in which the ceramic forms a kind of background material called the matrix, which is reinforced with fibers of another material often carbon fibers, or sometimes fibers of a totally different ceramic. A material like this is known as a ceramic matrix composite CMC.

Photo: Advanced ceramics: Silicon and carbon fuse to form silicon carbide powder left , which can be made into a hard and hard-wearing ceramic called silicon carbide that can survive high temperatures. It has many applications, from drills and cutting tools to components middle, right that can withstand high temperatures in gas-turbine engines that would melt ordinary metal parts.

Ceramic components are also used in ordinary car engines for the same reason. As we've already seen, the most important general property of ceramics is that they're refractory : they're rough-and-tumble materials that will put up with fair amounts of abuse in the most ordinary and extraordinary situations. Just consider, most of us tile our kitchens and bathrooms because ceramic tiles are hard, waterproof, largely resistant to scratches, and keep on looking good for year upon year; but engineers also put very different!

Most ceramics are also nonmagnetic materials, although ferrites iron-based ceramics happen to make great magnets because of their iron content. Those are the useful points, but, thinking about traditional ceramics like glass or porcelain, you'll also have noticed one major drawback: they can be fragile and brittle, and they'll smash or shatter if you drop them subject them to "mechanical shock" or suddenly change their temperature "thermal shock".

The interesting question is why ceramics behave like this—and the no-less-interesting answer boils down to materials science : it's all to do with how the atoms inside are bonded together. That explains how most materials work.

In metals, for example, atoms are relatively weakly bonded which is why most metals are fairly soft ; their electrons are shared between them in a kind of sea that can "wash" right through them, which is simplistically speaking why they conduct electricity and heat.

A material like rubber , on the other hand, is made of long-chain molecules polymers that are very weakly attached to one another; that's why raw, white, latex rubber is so stretchy and why black, vulcanized rubber like that used in car tires is harder and stronger, because heat-and-sulfur treatment makes strong cross-links form between the polymer chains, holding them tightly together.

All the electrons are locked up in bonds of various kinds none are free to carry an electric current , and that's why rubber is generally a good insulator. Ceramics are different again. Their atoms are ionically bonded like sodium and chlorine in sodium chloride, common salt , which holds them firmly in place making ceramics hard and strong and locks up all their electrons so, unlike in metals, there are no free electrons to carry heat or electricity.

Metals can bend, stretch, and be drawn into wires because their rows of regularly packed atoms will slide past one another. But in a ceramic, there are no rows of atoms; the atoms are either locked in a regularly repeating three-dimensional crystal or randomly arranged to make what's called an amorphous solid a solid without a neat and tidy, internal crystalline structure.

If you whack a lump of metal with a hammer, the mechanical energy you supply is dissipated as layers of atoms jump past one another; in other words, the metal bends out of shape. If you whack a ceramic such as glass, there's nowhere for that energy to go—no way for the glass to deform and soak up the blow—so it shatters instead.

This explains why ceramics are both hard and brittle. As we've already seen, not all ceramics behave this way. Graphite is soft because it's made of layers of carbon atoms that will slide and shear that's why a graphite pencil leaves lines on paper ; diamond is hard because it has a much more rigid crystalline structure.

Clay dug from the ground is soft and pliable because, like graphite, its atoms are made of flat sheets that can slip past one another, held together only by weak bonds. When you add water to clay, the polar water molecules positively charged at one end, negative at the other end help to pull those bonds apart, making the clay even more malleable. When you fire clay, the water evaporates and the aluminum, silicon, and oxygen atoms lock into a rigid structure made from aluminum silicate, bonded together by silicate glass—and that's why fired clay is so hard.

Artwork: Why do ceramics and metals behave differently? If you apply too much force, the only thing a ceramic can do is break apart: the energy has nowhere else to go. That's why metals are good conductors. That's why ceramics tend to be good insulators non-conductors. From glass and brick to porcelain and cement, we've already seen that there are countless different things that can be described as ceramics; not surprisingly, then, there are literally hundreds of different applications for ceramic materials in everything from aerospace to zoo-keeping.

Airplane jet engines , for example, are examples of machines called gas turbines, which work by burning fuel mixtures at high temperatures to make a fiery exhaust that powers a plane through the air. The need to cope with incredible temperatures explains why engine components are often made from ceramics.

It was for exactly the same reason that 31, ceramic tiles were used on the now-retired Space Shuttle to protect it from burning up on its way back to Earth from space. Tragically, it was the failure of a ceramic tile that led to the demise of the Space Shuttle Columbia as it struggled to return to Earth in February The next generation of reusable space planes is expected to use higher-performance tiles made from ceramic-matrix composites.

Photo: Ceramic tiles helped to protect the Space Shuttle from heat when it came back into Earth's atmosphere. If aerospace is an extraordinary use for extraordinary ceramics, construction is one of the best known uses for ordinary, everyday ceramics. Even in our modern age of plentiful plastics, brick, glass, cement, concrete, porcelain, and tiles of all kinds are still the raw materials from which most buildings are made. The tools used on construction sites are often made with ceramics too.

Whether you're cutting glass, drilling holes in tile, grinding concrete, or sawing through brick, engineering ceramics like tungsten or silicon carbide will help you knock more traditional ceramics into shape, generally working better, for longer, than traditional tools made of steel.

Ceramics aren't always at the cutting edge; a lot of the time, we don't notice them at all—especially when they're hiding inside electrical and electronic equipment. Anything with an electric motor that's every chore-busting, electric-powered machine in your home contains magnets, and quite often they're made from ferrite ceramics.

You'll also find ferrite magnets, or other kinds of ceramic transducers, in loudspeakers and headphones. While we use conducting metals like copper to carry electricity from place to place, we have to use ceramics to insulate high-voltage electricity in places like power plant generators and transformers. Sometimes, ceramics insulate us from electricity and heat at the same time: heating elements are often built into ceramic holders, electric cooktops are made from high-performance ceramic glass, and incandescent lamps have glass bulbs that protect us from heat and electricity while protecting their filaments from the atmosphere.

The most advanced electrical use of ceramics is probably in high-temperature superconductors materials with virtually no electrical resistance.

Photo: High-temperature superconductors made from ceramics could allow electricity to flow through things with little or no resistance, making possible technologies like superfast computers and "floating" Maglev trains. Picture courtesy of US Department of Energy. It's perhaps surprising, then, to find so many applications for ceramics in the world of medicine.

How about the piezoelectric transducers that create ultrasonic waves used in pregnancy scans? Or what about dentures false teeth made from porcelain or glass eyes? Or bone implants made from silicon nitride, which are cleverly designed to be porous so they promote natural bone growth? If you're wondering what ceramics have to do with zoology as I suggested up above , you'll find plenty of dogs that—just like us humans—have had ceramic implants in their bones and teeth.

Ceramics generally start with a clay-based material dug from the ground that's mixed with water to make it soft and flexible and other materials, squashed into shape, then fired at high-temperature in a large industrial oven called a kiln. Firing is what most ceramics have in common; the very word "ceramic" originally comes from Sanskrit and means "to burn. Photo: Ceramic tiles get their hardness from being fired.

Although that makes them extremely durable, it also means they're relatively fragile and brittle: they crack quite easily. The US Geological Survey lists six types of clay mined in the United States: common clay, kaolin China clay , bentonite, ball clay, fuller's Earth, and fire clay, and each has a number of different uses:.

Each one of these also has numerous different grades and qualities, so it's probably more accurate to talk about China clays or Ball clays in the plural. Ball clay, for example, is used to make things like fine porcelain tableware and bathroom suites, but even within a single ball clay mine, different grades of clay will be simultaneously excavated from different areas and kept separate or blended in various ways for different end uses.

Before they're fired, raw ceramics can be shaped in all kinds of ways; different manufacturing processes are used for different end products. So pipes, for example, are made by extrusion squeezing clay through a hole, a bit like toothpaste from a tube.

Glass is made by blowing, molding, or being floated on top of water the float-glass process by which large, flat windows are made.

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The high speed nail making machine is used to produce common nail for the building industry. There are the most popular five different models from No Contact Points. No Moving Parts to wear out. No Sparks. Capable of sustaining spik..

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The basis for charcoal-fueled iron production in southern New Jersey was limonite, better known as bog iron. This form of iron was created in a chemical reaction between the tannin-rich waters of the Pine Barrens and underlying iron rich sands and marls. The bog iron ore would rise up to the various creeks, rivers, and lakes of southern New Jersey. Iron forgers could harvest this bog iron ore from the creek and river beds of the region and use it to produce refined iron. Library Company of Philadelphia.

What We Produce

Pig farming is the raising and breeding of pigs. Among the various livestock species, piggery is most potential source for meat production and pigs are more efficient feed converters after the broiler. Pig rearing has traditionally been in the main occupational axis of the socially backward down-trodden class of Indian population since time immemorial. But at present commercial pig farming has greatly changed social scenario of this business in India. Now everyone is conscious about the economic importance of pig farming. Pig farming for meat production is one of the best and profitable business ideas for people.

Mobilization of antimicrobial resistance traits from agriculture and aquaculture to food View all 5 Articles. Livestock-associated methicillin-resistant Staphylococcus aureus LA-MRSA is widely spread in intensive farming systems and considered an occupational risk for humans.

This site requires a JavaScript enabled browser. Whether indoor or outdoor, modern British pig production has evolved to high levels of technical performance and efficiency to cope in a huge pork market. Find out more about key management areas, information on issues such as welfare, consumer demands and antibiotics reduction targets. Composting dry poultry manure or separated pig slurry fully automatically is now possible with CompoLiner from Big Dutchman. After developing and testing the innovation for several years CompoLiner is now…. Attention to detail in the boar stud when it comes to housing, health, feeding, semen collection and processing has allowed farmers to access superior genetics of the highest health status…. Danish farmer Jeppe Bloch from Vejen, kilometres north of the German border, recently expanded his sow house to add places.

Pig farming

Last updated: September 1, Y ou started your morning with ceramics—and they'll dominate your day. Inside your brick, cement, and glass home, you woke to the quartz clock, washed in the tiled bathroom, breakfasted on pottery cups and bowls.

Pig farming is the raising and breeding of domestic pigs as livestock , and is a branch of animal husbandry. Pigs are farmed principally for food e. Pigs are amenable to many different styles of farming: intensive commercial units , commercial free range enterprises, or extensive farming being allowed to wander around a village, town or city, or tethered in a simple shelter or kept in a pen outside the owner's house.

Ах, вот ты где, Пфейфер, - услыхали они ровный голос капитана Бауэра. - Собери всех остальных и подымайтесь наверх. Морган утверждает, что видит на юге удивительный фейерверк.

Люди и без того встревожены небоскребами и темнотой. Я собираюсь всех успокоить. - Вот наш шанс, - прошептал Ричард, поднимаясь на ноги. - Безусловно, они на несколько минут уйдут из подземелья.

- Он бросился бежать, а потом остановился.

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А мне приходится бодрствовать, пока он ест. Ты хоть раз пытался уснуть, когда кто-то теребит тебя за сосок. - Так вот оно. - усмехнулась Николь. - Кажется, наши новые родители за четыре дня растеряли весь прежний пыл. - Ну, не то чтобы совсем, - с вынужденной улыбкой проговорила Эпонина, одеваясь.

Ware pets play.™

Так или иначе я не сумела уберечь тебя". Николь ощутила, как отчаянно колотится сердце, когда Арчи наконец ввел ее в комнату, где не было ничего, кроме кресла, большого стола и экрана на стене. Арчи указал Николь на кресло. - Прежде чем я научу тебя пользоваться оборудованием, - проговорил октопаук, - мне следует сказать две вещи. Во-первых, как ответственный за вашу группу оптимизатор, я должен дать ответ на просьбу той части людей, которая хочет возвратиться к прочим представителям вашего вида в Новом Арчи сделал паузу.

Николь собралась. Ей было сложно даже на миг выбросить Кэти из своей памяти, но она понимала, что придется сконцентрироваться целиком на том, что Арчи намеревается ей сообщить. Члены ее группы будут рассчитывать на пространные объяснения по этому - Боюсь, - продолжил Арчи несколько мгновений спустя, - что в ближайшем будущем никому из вас нельзя будет отправиться .

Поглядев на Ричарда, Николь всегда ощущала прилив сил и легче справлялась со своим одиночеством. Встреча Ричарда с Кэти оказалась для нее неожиданной.

"Неужели я попал не. Должно быть, ошибся тоннелем. - Нет, разум отверг эту мысль, пока он торопливо оглядывал комнату, - это именно та комната. в углу пара перышек и одна из забавных пеленок Никки.

Почему бы вам не рассказать людям о разнице условий жизни в обеих группах. Пусть каждый человек решает Сам за .

Ее сын тоже помогал немногочисленному персоналу госпиталя. Бенджи все глубже осознавал ситуацию, сложившуюся в Изумрудном городе, и Николь становилось все труднее скрывать от него серьезность их положения. - Почему лю-ди вою-ют с ок-то-пау-ками.

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    And I have faced it. Let's discuss this question.

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