How can you remove lice from calves? - briefly
Apply a licensed topical insecticide such as a pyrethrin‑based spray, following label directions, then comb the coat with a fine‑toothed lice comb to eliminate dead insects and eggs. Repeat the treatment after 7–10 days to interrupt the life cycle.
How can you remove lice from calves? - in detail
Lice infestations on young cattle require a systematic approach that combines direct treatment, environmental management, and preventive measures.
Effective removal begins with thorough inspection. Identify affected areas, usually the neck, back, and udder, by parting the hair and looking for live insects, nymphs, or brownish droppings.
Apply an appropriate ectoparasiticide. Options include:
- Topical pour‑on formulations containing pyrethroids or organophosphates; follow label dosage based on animal weight.
- Injectable macrocyclic lactones; ensure proper injection site and observe withdrawal periods for meat and milk.
- Dip or spray preparations with chlorinated hydrocarbons; coat the entire body, paying special attention to folds and under‑belly.
After chemical application, remove dead and live lice mechanically. Use a fine‑toothed comb or a soft brush to dislodge remaining insects, then discard the comb contents in a sealed container.
Treat the environment to prevent reinfestation:
- Clean and disinfect housing, feeding troughs, and water sources with a solution of 1 % sodium hypochlorite or a commercial disinfectant.
- Remove manure and bedding, then replace with fresh, dry material.
- Apply a residual insecticide to the stable floor and walls, respecting safety intervals before re‑introducing animals.
Implement preventive protocols:
- Schedule regular prophylactic treatments at intervals recommended for the region’s lice life cycle, typically every 4–6 weeks during peak seasons.
- Maintain optimal nutrition and body condition; well‑fed calves exhibit stronger immune responses that reduce parasite burden.
- Rotate pastures and avoid overcrowding to limit contact between infested and healthy animals.
Monitor the herd after treatment. Re‑inspect calves within 7–10 days to confirm the absence of lice. Repeat the inspection and, if necessary, a second round of treatment if any insects persist. Continuous observation combined with the outlined measures ensures effective eradication and long‑term control of lice on calves.