2010, Vol. 5 No. 1, Article 47
Persistent Tympany Associated with Hydrometra in a Cow
Khurshid A. Shah
Department of Animal Husbandry (Kashmir), Srinagar
*Corresponding Author; e-mail address: firstname.lastname@example.org
Mild Persistent tympany associated with hydrometra was reported in a cross bred cow aged about 6 years. Single intra muscular injection PGF2 alpha analog caused successful expulsion of uterine fluid within 4 days of administration and persistent tympany also disappeared spontaneously.
Tympany, hydrometra, PGF2 alpha, uterine fluid.
Tympany in cattle is an ailment of serious economic importance. It causes drop in production by depression of food intake or by failure of milk let down and also remains major cause
(up to 3% of total) of mortalities occurring in a year.
Report was based on a crossbred cow of about 6 years age with a history of mild persistent tympany. Cow had poorly responded to earlier administration of electrolytes and antibloat (silica in dimethicone) preparations. Animal was also in anoestrum for last 1 year.
MATERIALS AND METHODS
Clinically the cow was afebrile showing resonance on percussion of distended abdomen. Ruminal movements were feeble, feces were soft and pasty and milk yield decreased. Thorough clinical examination was conducted to rule out traumatic reticulo pericarditis or oesophageal obstruction. Per-rectum examination was conducted twice at an interval of 15 days to rule out pregnancy. A single intramuscular injection of prostaglandnin preparation that provided 25mg of PGF2 alpha analog was given and animal was kept under observation for 10 days.
Two consecutive per-rectum examinations conducted at 15 days interval revealed thin walled uterus filled with fluid and descended into abdominal cavity, absence of feotal parts, placentomes, fremitus or whirring of uterine artery and presence of a corpus luteum on ovary. These observations were indicative of hydrometra with retained corpus luteum as described by Robert (1984). About 20 liters of uterine fluid was expelled on 4th day of intramuscular administration of PGF2 alpha. Clinical condition of animal improved markedly and tympany disappeared spontaneously within a week`s time.
In bovines hydrometra or mucometra develops in untreated cases of cystic ovarian degeneration(Kaikini 1992). Hydrometric uterus containing gallons of fluid associated with retained corpus luteum was reported in goats, sows and cows (Roberts and Fox, 1968) (Bearden and Fuquay, 1980), (Robert, 1984). Administration of prostaglandin (PGF2 alpha) causes luteolysis and expulsion of uterine contents within 3 to 4 days in animals which have luteal cyst, retained corpus luteum or a corpus luteum coexisting with a cyst (Antoine and Pattabiraman, 1993)(Awasthi and Tiwari, 2002).
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