2010, Vol. 5 No. 2, Article 70
Butachlor Herbicide Poisoning in Horses K. A. Shah and S. A. Andrabi*
Department of Animal Husbandry,
*Corresponding Author; e-mail address: [email protected]
ABSTRACT Poisoning due to accidental ingestion of butachlor, a herbicide, was encountered in five horses. Significant improvement was observed in two horses after the initial treatment with 5% dextrose saline, anti-bloat, pheneramine maleate and liver tonics whereas other three horses responded after a second therapy. Signs of hyper salivation and tympany disappeared and animals turned completely normal on 3rd day of treatment. KEY WORDS Butachlor, herbicide, poisoning, horse. INTRODUCTION The wide use of agricultural chemicals constitutes a potential hazard to grazing stock. Among various agricultural chemicals, fertilizers and insecticides of chlorinated hydrocarbons and organophosphate groups have commonly been reported to cause poisoning in cattle and horses (Rajesh et al., 2000), dogs (Anil, et al., 2008 ) lambs and steers (Radostitis et al., 2000). Poisoning with herbicides is an uncommon occurrence. However, animals can be poisoned accidentally by inhalation, ingestion or per-cutaneous absorption of these compounds. The present communication records the poisoning encountered in horses due to accidental ingestion of a herbicide - butachlor and its therapeutic management. CASE HISTORY AND CLINICAL SIGNS Signs of in-coordination, hyper salivation, tympany, recumbency and reluctance to take food or water were reported in a group of five horses aged between 4-6 years. Upon clinical examination, the temperature, heart rate and respiratory rate were found to be within the normal range. History revealed that these signs developed soon after the horses had accidental access to water in a nearby paddy field treated with herbicide. DIAGNOSIS AND TREATMENT History and clinical signs indicated that the animals were poisoned accidentally by taking the water containing the herbicide butachlor. Dextrose saline (2L) was administered intravenously to each animal, followed by intramuscular administration of phenaramine maleate and an injectable liver tonic preparation (10 ml each). In addition, 200 ml of anti-bloat ( silica in dimethicone) was also given orally. The treatment was repeated after four hours with 1L of 5% dextrose saline IV infusion, 100 ml of anti-bloat orally and 1 gm of Ampicillin-Cloxacillin preparation intramuscularly. Administration of Ampicillin-Cloxacillin 1gm twice a day and phenaramine maleate & liver tonics (10ml each) once a day was continued for three days. RESULTS AND DISCUSSION
Significant improvement was observed in two horses after the initial treatment whereas other three horses responded after second therapy. Signs of hypersalivation and tympany disappeared
and the animals turned completely normal on the 3rd day of treatment. REFERENCES
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