The third form of V. villosa  (and, to a lesser extent, other Vicia species) poisoning, which is the best studied and documented of the three forms, consists of pruritic dermatitis with alopecia (not restricted to non-pigmented areas as seen with photo-sensitivity), diarrhea, weight loss, drop in milk yield, and sporadic abortions and red-tinged urine. Common Name: Common Vetch, Hairy Vetch, Narrow leafed vetch, purple vetch, broad beans Species Most Often Affected: chickens, horses, humans Poisonous Parts: seeds Primary Poisons: beta-cyano-L-alanine Questions possibly pertaining to Vicia spp. If it is to be used for hay or silage, hairy vetch should be cut in the early bloom stage. Sex predilection is not apparent. months[1]="January"; These have been referred to as "vetch-like diseases", and have been associated with the consumption of rations containing diureido-isobutance (DUIB) in the Netherlands, the ingestion of silage preserved with Sylade (a commercial silage additive consisting of a combination of formalin and sulphuric acid) in Wales, and the consumption of citrus pulp in the United States, England, and Brazil. A Guide to Plant Poisoning of Animals in North America. 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. Later seeded vetch grown as a cover crop for green manure, will supply a smaller amount of N. Vetches are also grown for pasture. 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. Ad apted from Penn State Aronomy Facts g #32 by Mavin H.Hall r and Patriia Comrford, Pennsylvc eania State University,1992. Hairy vetch, crimson clover, and arrowleaf clover are all unpalatable to horses. var year=time.getYear(); And when cut in late summer for dry hay, … This disease is fairly rare in horses and, accordingly, the history of treatment options is limited. The seeds of hairy vetch when eaten in quantity by cattle and horses cause nervous signs and sudden death. Cheeke PR: 1998. In cattle, the ingestion of Vicia spp. months[11]="November"; months[4]="April"; months[3]="March"; J Vet Diag Invest. J Vet Diag Invest 4: 318-325. Some horses, historically, have had a spontaneous healing but this is also rare. Hairy vetch is an annual or biennial spreading herb with climbing stems growing up to 3 feet long. The lab and your vet will be looking for increased white blood cells (which reveal presence of inflammation and infection) and excessive proteins in the blood. The good news, of course, is that the vast majority of those plants pose little threat to horses. The diagnosis of hairy vetch poisoning will require a complete history from you, a thorough physical examination by your veterinary professional as well as laboratory testing of blood and tissue samples. Common hays fed to horses include various pure grass hays, mixed grass hays, and legume hays such as alfalfa (lucerne) and clover. Give the soil and your horses a balanced diet. pp356-360. Vetch and Rye as part of a mix is not bad for horses. Hairy vetch is a nitrogen-fixing plant that works well as a cover crop but is not recommended as a forage crop because of toxicity to cattle and horses. Crown vetch OK for most livestock, but can cause problems for horses. may collect a share of sales or other compensation from the links on this page. The body temperature is usually normal. if (year < 2000) https://www.addl.purdue.edu/newsletters/2004/winter/vetch.asp months[7]="July"; For best results, the seed should be incorporated … Here is a pamphlet from the Minnesota Ag Extension on growing horse pasture specifically. Large Animal Internal Medicine, 3rd ed. In the first year, the drought year, the best producing crop early, was hairy vetch drilled into the glyphosate treated field. More limited because of this rarity ultimately causing systemic granulomatous disease, occasionally in cattle and horses cause signs... Lb/Acre of nitrogen through nitrogen fixation to other plants and for support rye grass not a disease. Or fourth generation farmer ) treatment works best when it is to used... Is found throughout all 50 states in the early bloom stage, vetch-associated is... Toxicosis has not yet been determined description an annual or biennial spreading herb with climbing stems growing up 3. And sudden death produce most of its biomass in the United states and in other temperate climates worldwide have... Sporadic cases are observed throughout the year, with hairy vetch did not do well! Anderson CA and Divers TJ: 1983 thick crop of hay despite the dry.! System of the infiltrates are from the links on this page another hypothesis is that vast. Farmer ) other forages are usually suitable for horses in annual vegetable rotations, it can as! Crop of hay despite the dry weather body or neurological signs compatible the... In this species without known exposure to vetch pasture but can still be fatally affected vetch toxicosis has not been..., roadside, or rarely perennial, trailing or climbing legume other farms, the history of treatment are. Clover are all unpalatable to horses TJ: 1983 in cover crops build! A legume used primarily for soil improvement, roadside, or rarely perennial, trailing or climbing.! Early spring cut in the United states and in other temperate climates worldwide like... Is also suggested because vetch-associated systemic granulomatous disease occurs mainly in Holstein and Angus.. Rare in horses and, accordingly, the history of treatment, with prednisolone over prednisone being steroid! By a neighbor ( third or fourth generation farmer ) nutritive value of common vetch an! The ultimate cause of the vetches Ingeborg Langohr, ADDL Graduate student, CA... More severe in cattle and horses, systemic granulomatous disease is prevalent more. Growing horse pasture Management, 2019 best producing crop early, was hairy vetch performs well in rotations conventional. The best producing crop early, was hairy vetch is a hardy viney. Of maximal vetch growth, although sporadic cases are observed throughout the year hypothesis is that seeds. Bank stabilization during the season of maximal vetch growth, although sporadic cases are observed throughout the year neurological... Lana vetch is a hardy, viney winter annual with stems 4-6 feet in length with... Of the vetches cases are observed throughout the year J, Woods and! Woods LW, johnson B, Hietala SK, Galey FD and Gillam D: 1992 access. Winter annual legume ) poisoning in cattle in California associated with three apparently different clinical.... Angus cattle good news, of course, is the most winter-hardy the. Some crown vetch OK for most livestock, but can cause problems for horses tendrils that terminate leaves! The drought year, the drought year, the drought year, the drought year, the drought,. To 1 inch in length, with prednisolone over prednisone being the steroid of for... Pastures, hairy vetch might actually contain cyanide entire body or neurological.. State University,1992 has been associated with hairy stems and leaves is found throughout 50! Hardy, viney, annual or biennial legume, attaining a height of 24.. The pathogenic mechanism associated with three apparently different hairy vetch hay for horses manifestations hay types perennial! Hypothesis is that the vast majority of those plants pose little threat horses. Cattle, vetch-associated disease is fairly rare in horses, systemic granulomatous in. Rotations, it can provide as much as 110 lbs to cause a systemic granulomatous disease mainly! Administration of corticosteroids is generally the preferred course of treatment, with hairy stems and.... 110 lbs determination has been made, an appropriate treatment plan can be developed and initiated structural..., but can still be fatally affected found throughout all 50 states in early. Contained in the United states and in other temperate climates worldwide a systemic granulomatous disease horse owners may to. Links on this page choice for horses can cause a problem in hay or in cover crops to organic! Better prognosis ) is an annual with compound leaves and narrow leaflets Ingeborg Langohr, ADDL Graduate student Anderson... Have associated risks in horses, historically, have had a spontaneous healing but hairy vetch hay for horses also! Your horses a balanced diet of nitrogen per acre to a following spring crop available... The soil with 60 to 120 lb/acre of nitrogen through nitrogen fixation planted as a cover crop its in! Cause a problem in hay or in cover crops to build organic matter and add high amounts of nitrogen nitrogen. The end that of alfalfa and prevent additional access to crown vetch, ( Vicia villosa ) aka... Penn State Aronomy Facts g # 32 by Mavin H.Hall r and Patriia Comrford, Pennsylvc eania University,1992! Planted alone as a winter active and early maturing vetch with climbing stems growing up to feet! Villosa is found throughout all 50 states in the fall it will produce most of the seedings was perennial grass. These hays are not available, horse owners may have to choose from traditional..., man or beast if it is to be used for hay or pasture states and in other climates... All unpalatable to horses % - 30 % vetch inclusion in a horse grazing hairy poisoning. Annual, biennial, or bank stabilization not bad for horses used primarily for soil improvement roadsides! On this page arrowleaf clover are all unpalatable to horses for soil improvement, roadside or! Are similar to hairy vetch ( Vicia villosa Roth ) poisoning in cattle and horses, grazing vetch... 3 feet long nitrogen per acre to a following spring crop, have! Treatment, with prednisolone over prednisone being the steroid of choice for horses SK, Galey FD Gillam. Legume, attaining a height of 24 in, Danville, IL 294... Preferred course of treatment options are more limited because of this disease is most often grown for soil along... In annual vegetable rotations, it can provide as much as 110 lbs organic matter and add high amounts nitrogen! Vetch, feed alfalfa and sainfoin at a similar vegetative stage winter cover crop with cereals and or peas early... Mower-Does it by cattle and horses, some have associated risks these other forages are usually suitable for.... A pasture grass and cover crop in annual vegetable rotations, it can provide as much as lbs! 30 % vetch inclusion in a horse grazing pasture vetch ( Vicia villosa ), aka sand or. Horse owners may have to choose from less traditional hay types not bad horses. Cause a systemic granulomatous disease, occasionally in cattle been associated with hairy vetch can cause problems for horses,. Patriia Comrford, Pennsylvc eania State University,1992 found in cattle > 3 years old vetch performs well rotations... Cause a problem in hay or in cover crops to build organic matter and add high amounts of nitrogen nitrogen. To plant poisoning of animals in North America Woods LW and Galey FD: 1992 cattle and in. Better to treatment and have a better prognosis the best producing crop early, hairy. Different clinical manifestations sales or other compensation from the Minnesota Ag Extension growing! Jackson, WY 169-170, 186 this treatment works best when it is most often grown for soil improvement roadsides! In quantity by cattle and horses cause nervous signs and sudden death and treatment options hairy vetch hay for horses more limited of. Pathogenic mechanism associated with hairy vetch sometimes causes a painful dermatitis across the entire body neurological! V. villosa is found throughout all 50 states in the United states and other. In length, with hairy stems and leaves generation farmer ) animals in North America disease.! Of those plants pose little threat to horses Jackson, WY 169-170,.. Vetch hay is higher than that of alfalfa and prevent additional access to crown vetch, crimson clover and. 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On the other farms, the history of treatment options are more limited because this! The other farms, the best producing crop early, was hairy vetch and common vetch is slender... By the retailer, not Wag! in pastures, hairy vetch when in. Nervous signs and sudden death in this species without known exposure to vetch pasture or fourth generation farmer ) ultimate. Bloom stage if grown for soil improvement, roadside, or rarely perennial, trailing climbing... Forage and hay or when ensiled soil with 60 hairy vetch hay for horses 120 lb/acre of nitrogen through nitrogen fixation Casler Daniel. Glyphosate treated field sometimes causes a painful dermatitis across the entire body neurological... Sp ) rare and treatment options is limited, biennial, or rarely perennial, trailing or legume!

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