Which grazing strategy involves multiple species grazing on the same pasture to help reduce parasite loads?

Which grazing strategy involves multiple species grazing on the same pasture to help reduce parasite loads?

• A. Pasture rotation
• B. Mixed grazing
• C. Strip grazing
• D. Mixed/Alternate grazing

Answer: (D)

Grazing multiple species together or in rotation helps cut parasite loads by disrupting how parasites survive and spread on pastures. Many gastrointestinal nematodes are adapted to a specific host, so the larvae that develop in feces are more likely to infect the host they’re built to infect. When another species shares the same pasture, it often serves as a poor or non-host, causing many larvae to fail to establish or to die, which lowers the level of infectious stages on the pasture. By mixing species or alternating them across paddocks, you interrupt the parasite life cycle and reduce the contamination that would otherwise accumulate for a single species. This approach works best when the species have similar forage needs and stocking is managed to prevent overgrazing, with parasite monitoring to guide timing and animal movements.

Grazing multiple species together or in rotation helps cut parasite loads by disrupting how parasites survive and spread on pastures. Many gastrointestinal nematodes are adapted to a specific host, so the larvae that develop in feces are more likely to infect the host they’re built to infect. When another species shares the same pasture, it often serves as a poor or non-host, causing many larvae to fail to establish or to die, which lowers the level of infectious stages on the pasture. By mixing species or alternating them across paddocks, you interrupt the parasite life cycle and reduce the contamination that would otherwise accumulate for a single species. This approach works best when the species have similar forage needs and stocking is managed to prevent overgrazing, with parasite monitoring to guide timing and animal movements.