Articles from Britannica Encyclopedias for elementary and high school students. Typical hay crops are timothy, alfalfa, and clover. Hay is used mainly for feeding animals when no fresh grass is available. Alternatively, an upper storey of a cow-shed or stable was used, with hatches in the floor to allow hay to be thrown down into hay-racks below. However, organic forms of fertilization and weed control are required for hay grown for consumption by animals whose meat will ultimately be certified organic. Given that the protein content of grasses and legumes decreases and fibre and lignified tissue increases as growing plants advance in maturity, a good hay crop must be cut at the proper stage, handled so as to retain the leaves, and cured to prevent spoilage or discoloration. Corrections? Hay baled before it is fully dry can produce enough heat to start a fire. Quality hay has green color and sweet smell. Job evaluation is a means of establishing relativities between jobs. hay - Student Encyclopedia (Ages 11 and up). The best hay smells sweet, and if you take a handful and get it wet, it still looks like grass. [20], For animals that eat silage, a bale wrapper may be used to seal a round bale completely and trigger the fermentation process. Plastic tarpaulins are sometimes used to shed the rain, with a goal of reduced hay wastage, but the cost of the tarpaulins must be weighed against the cost of the hay spoilage percentage difference; it may not be worth the cost, or the plastic's environmental footprint. Round bales are quickly fed with the use of mechanized equipment. It is important to know when to use ser , estar or hay , when in English the verb “to be” would be used. However, whether done by hand or by modern mechanized equipment, tall grass and legumes at the proper stage of maturity must be cut, then allowed to dry (preferably by the sun), then raked into long, narrow piles known as windrows. Usually, a salt solution is sprayed over the top of the hay (generally alfalfa) that helps to dry the hay. “Hay balers are available that produce bales of many sizes and shapes. Therefore, different types of animals require hay that consists of similar plants to what they would eat while grazing, and likewise, plants that are toxic to an animal in pasture are also toxic if they are dried into hay. Information about all of this can be found on our free downloadable factsheets at the bottom of this page. Loose stacks are built to prevent accumulation of moisture and promote drying, or curing. Because of the four-chambered stomach of cattle, they are often able to break down older forage and have more tolerance of mold and changes in diet. Hazards include the danger of having a poorly constructed stack collapse, causing either falls to people on the stack or injuries to people on the ground who are struck by falling bales. Oat, barley, and wheat plant materials are occasionally cut green and made into hay for animal fodder; however they are more usually used in the form of straw, a harvest byproduct where the stems and dead leaves are baled after the grain has been harvested and threshed. This type of machinery will either have rubber rolls or steels rolls which pressure the hay and crimp the hay stems, leading to cuts without any trouble. Later in the 20th century, balers were developed capable of producing large bales that weigh up to 3,000 pounds (1,400 kg). The Hay Bale can be crafted by with Wheat. [28] The words (haystack, haycock) are usually styled as solid compounds, but not always. Also, straw can be used as a bio-fuel, packing material and can be used in the paper industry. Hay or grass is the foundation of the diet for all grazing animals and can provide as much as 100% of the fodder required for an animal. If the weather is too wet, the cut hay may spoil in the field before it can be baled. It is a replacement for hay. Straw is the stalk that is left over after a grain, like barley, has been harvested. [19] Aminopyralid and related herbicides can persist in the environment for several years. They could be powered by steam engines by about 1882. [39] Exposure to hay can also trigger allergic rhinitis for people who are hypersensitive to airborne allergens. John T. Schlebecker, “Whereby We Thrive: A History of American Farming, 1607-1972,”, Learn how and when to remove this template message, "An Introduction to Feeding Small Ruminants", "The Best Method of Managing the Hay Crop", "Equipment to rake and merge hay and forage", https://www.farmcollector.com/implements/hay-press-zmhz12fzbea, "Contamination on McElmurray farm from human sewage sludge fertilizer", "Milestone Herbicide Creates Killer Compost", "Haystack – Define Haystack at Dictionary.com", "The Beaverslide: Homegrown Haying Technology", "Haystack Fires (Spontaneous Combustion)", "Hazards Associated with Using Farm Tractors to Move Large Bales", "JAMA - Fatalities Associated With Large Round Hay Bales—Minnesota, 1994-1996", Hay Harvesting in the 1940s instructional films, Center for Digital Initiatives, University of Vermont Library, https://en.wikipedia.org/w/index.php?title=Hay&oldid=994822721, Short description is different from Wikidata, Articles needing additional references from July 2015, All articles needing additional references, Articles with unsourced statements from June 2012, Articles with unsourced statements from June 2007, Articles with unsourced statements from December 2008, Wikipedia articles incorporating a citation from the New International Encyclopedia, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Wikipedia articles incorporating a citation from the Encyclopedia Americana with a Wikisource reference, Wikipedia articles incorporating a citation from Collier's Encyclopedia, Creative Commons Attribution-ShareAlike License, This page was last edited on 17 December 2020, at 18:45. However, some precautions are needed. Grass hay comes in many varieties and the best hay can vary from horse to horse. A lucky break in the weather often moves the haymaking tasks (such as mowing, tedding, and baling) to the top priority on the farm's to-do list. Mobile balers, machines which gather and bale hay in one process, were first developed around 1940. Usually the material is cut in the field while still green and then either dried in the field or mechanically dried by forced hot air. The size and shape made it possible for people to pick bales up, stack them on a vehicle for transport to a storage area, then build a haystack by hand. After hay was cut and had dried, the hay was raked or rowed up by raking it into a linear heap by hand or with a horse-drawn implement. [5] They require three to four hours per day to eat enough hay to meet their nutritional requirements.[6]. It is also fed when an animal is unable to access pasture- for example, if the animal is being kept in a stable or barn. Grasses grown and cut in the same way as for hay but left to dry for less time (approximately 30-40% moisture) Bales are wrapped straight after baling and compress to approximately two thirds of the original size. [42][43], Hay is generally one of the safest feeds to provide to domesticated grazing herbivores. The stack was made waterproof as it was built (a skilled task) and the hay would compress under its own weight and cure by the release of heat from the residual moisture in the hay and from the compression forces. The grasses are cut and then fermented to keep as much of the nutrients (such as sugars and proteins) as possible. The HAY system operates by providing a number of “job units” - the score- for the job, which is then matched against the grading structure to determine the grade. After harvest, hay also has to be stored in a manner to prevent it from getting wet. To completely keep out moisture, outside haystacks can also be covered by tarps, and many round bales are partially wrapped in plastic as part of the baling process. [15] Molybdenum poisoning is a particular concern in ruminants such as cows and goats, and there have been animal deaths. Hay is grass, legumes, or other herbaceous plants that have been cut and dried to be stored for use as animal fodder, particularly for large grazing animals raised as livestock, such as cattle, horses, donkeys, goats, and sheep. Hay production and harvest, commonly known as "making hay",[8] "haymaking", or "doing hay", involves a multiple step process: cutting, drying or "curing", raking, processing, and storing. eg: Hay tres coches en el aparcamiento = There are three cars in the car park. In many stacking methods (with or without thatched tops), stems were oriented in sheaves, which were laid in oriented sequence. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Hay is usually dried in small piles or stacks in the field, but a rainy climate may dictate forced-air curing in the barn. While small operations use a tractor to pull various implements for mowing and raking, larger operations use specialized machines such as a mower or a swather, which are designed to cut the hay and arrange it into a windrow in one step. Hay is geared toward being a nutrient-rich food for livestock, while straw is more often used for bedding instead of food. Hay must be fully dried when baled and kept dry in storage. During the growing season, which is spring and early summer in temperate climates, grass grows at a fast pace. Large bales come in two types, round and square. [citation needed] However, by the 20th century, good forage management techniques demonstrated that highly productive pastures were a mix of grasses and legumes, so compromises were made when it was time to mow. A tedder (also called hay tedder) is a machine used in haymaking.It is used after cutting and before windrowing, and uses moving forks to aerate or "wuffle" the hay and thus speed up the process of hay-making.The use of a tedder allows the hay to dry ("cure") better, … Amount must be monitored so that animals do not get too fat or too thin. Much hay was originally cut by scythe by teams of workers, dried in the field and gathered loose on wagons. [40] Heat is produced by the respiration process, which occurs until the moisture content of drying hay drops below 40%. Methods and the terminology to describe the steps of making hay have varied greatly throughout history, and many regional variations still exist today. When needed, slices of hay would be cut using a hay knife and fed out to animals each day. Hay is a type of block. Texas A&M University - Department of Animal Science - What About Hay? We also have a factsheets on allergic rhinitis in children. However, it is also fed to smaller domesticated animals such as rabbits and guinea pigs. Some contain more protein and carbohydrates to fuel hard working horses. Our editors will review what you’ve submitted and determine whether to revise the article. Thus the biggest challenge and risk for farmers in producing hay crops is the weather, especially the weather of the particular few weeks when the plants are at the best age/maturity for hay. The one you'll run into most often as a beginner is haber que, which means "to be necessary" when followed by an infinitive. It is a method used to preserve the pasture for cows and sheep to eat later when natural pasture isn’t good, like in the dry season. 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