-edited by Dr. Ingeborg Langohr, ADDL Graduate student, Anderson CA and Divers TJ: 1983. Well-nodulated hairy vetch can enrich the soil with 60 to 120 lb/acre of nitrogen through nitrogen fixation. var months=new Array(13); The cases of this disease presenting in horses is rare and treatment options are more limited because of this rarity. Hairy vetch (Vicia villosa)is an annual, biennial, or rarely perennial, trailing or climbing legume. Sex predilection is not apparent. Natural Toxicants in Feeds, Forages, and Poisonous Plants, 2nd ed. Foxtail (or german) millet contains a compound that causes joint pain in horses. Affected younger animals usually have mild disease, but can still be fatally affected. It has been proposed that the vetch lectins induce a type IV, or cell mediated, hypersensitivity reaction that would account for the inflammatory reaction seen in this condition. Hairy vetch is a common cover crop that is not recommended as livestock forage. It is important to understand that, due to the involvement of the immune system and the degree to which the disease process can affect various major organs, the morbidity rate is high. The facts that the plant is frequently consumed by cattle without any apparent problem, that several unsuccessful attempts have been made to experimentally induce the disease in younger animals, and that it was reproduced only once in a cow that had recovered from the disease one year earlier are claimed as further evidence to the hypersensitivity theory. months[2]="February"; The disease prevalence is greatest when the major component of the forage is hairy vetch or when the plant is reaching maturity in mid to late spring. Vetch and Rye as part of a mix is not bad for horses. It can also be used in grazing, although it is best used in a rotational grazing setup since it doesn't tolerate being grazed close to the ground very well. Hairy vetch is a late maturing vetch that is more winter hardy then other vetch varieties; when planted in the fall is will produce most of its biomass in the spring. Thoracic radiology may be obtained as well as ultrasonography of various parts of the animal to detect abnormalities which may be present. 11367 E. Purdue Farm Road Lana woollypod Vetch is vigorous variety used for forage and hay or in cover crops to build organic matter and add high amounts of nitrogen. This will also be weighed against the possibility that more conservative treatment may be the better option for those cases which are only cutaneously affected. The one plant that seemed to do best in most of the seedings was perennial rye grass. The administration of corticosteroids is generally the preferred course of treatment, with prednisolone over prednisone being the steroid of choice for horses. Large Animal Internal Medicine, 3rd ed. Michael D. Casler, Daniel J. Undersander, in Horse Pasture Management, 2019. 406 S. University months[6]="June"; Hairy vetch is an annual or biennial spreading herb with climbing stems growing up to 3 feet long. This treatment works best when it is administered early in the disease process. Here is a pamphlet from the Minnesota Ag Extension on growing horse pasture specifically. Systemic granulomatous disease is also known as equine idiopathic systemic granulomatous disease, sarcoidosis, generalized or granulomatous disease, equine histiocytic disease or equine histiocytic dermatitis and can be deadly for your horse depending on the severity of the disease and how far it has progressed. Hairy vetch is a forage plant found in pastures, which when ingested by your horse, can cause systemic granulomatous disease which can have long-term and sometimes permanent involvement. It is cultivated for its use as a pasture grass and cover crop. Online Case Reports While these other forages are usually suitable for horses, some have associated risks. Knight AP and Walter RG: 2001. Hairy vetch, crimson clover, and arrowleaf clover are all unpalatable to horses. ... Hairy vetch Winter annual used primarily as a cover crop E-M M Ladino clover Perennial F G E E E E-L M Cheeke PR: 1998. Morbidity rates vary from 1-68% (but in most outbreaks is approximately 10%); lethality rates are usually high (50-100%;  therefore, recovery of animals that develop severe disease is unlikely. Description An annual with stems 4-6 feet in length, with hairy stems and leaves. It is the only vetch species that can be planted in the fall and be mature the next summer and the only vetch … Hairy Vetch Hay Questions - posted in Alfalfa/Hay: Looking at the possibility of planting some hairy vetch to clean up a field, and to get a crop of hay next year. Having said that, it is important to note that more aggressive immunosuppressive treatment may be required but advantages and disadvantages to this aggressive treatment will need to be weighed against the risks of such long-term treatment. Vetches have pinnate leaves, meaning that they alternate on opposite sides of a main petiole. Hairy vetch (Vicia villosa Roth) poisoning in cattle: update and experimental induction of disease. Hairy vetch should be allowed to make a seed crop the first year and at least once every two years thereafter if reseeding is desired. months[8]="August"; Items are sold by the retailer, not Wag!. Later seeded vetch grown as a cover crop for green manure, will supply a smaller amount of N. Vetches are also grown for pasture. JAVMA 183(5): 569-570. The seeds may contain cyanide. Triticale Hay for Your Horse Harvesting a field of triticale Bestforage Hays commonly fed to horses include various pure grass hays, mixed grass hays, and legume hays such as alfalfa, and clover. If it is to be used for hay or silage, hairy vetch should be cut in the early bloom stage. Lana vetch is a winter active and early maturing vetch. *Wag! The body temperature is usually normal. Common vetch has tendrils that terminate the leaves which are used to attach itself to other plants and for support. months[9]="September"; The flowers, borne in a dense one-sided spike, are violet and white to rose colored. For one thing, most of them are unpalatable, and horses who are filling up on quality forage aren't likely to spend a lot of time grazing on the few bitter leaves populating their pasture. Though commonly found in pastures, hairy vetch can cause a systemic granulomatous disease, occasionally in cattle and rarely in horses. It will, or course, be a primary concern for removal of the remaining horses in your herd from the hairy vetch exposure if it is a component of the affliction. when planted alone, and higher when planted with a tall companion crop that provides structural support for climbing. months[11]="November"; months[12]="December"; document.write(date + ", " + year + ""); ADDL-West Lafayette: may collect a share of sales or other compensation from the links on this page. if (year < 2000) One clinical form is characterized by acute neurological signs compatible with the cyanogenic glycosides contained in the seeds. An annual or biennial legume, attaining a height of 24 in and Divers TJ: 1983 are typical pathologic! Since this disease is most often grown for hay, it can provide as as! Disease occurs mainly in Holstein and Angus cattle cases are observed throughout the year: an annual winter! To choose from less traditional hay types this treatment works best when it is noted horses... 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