Tonje Opsal

2PUBLICATIONS
0CO-AUTHORS
Environmental studies in animal productionCrop and pasture protection (incl. pests, diseases and weeds)
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Publications (2)

|Nov 29, 2023
Comparison of diagnostic methods for assessment of Ostertagia ostertagi exposure in Norwegian dairy herds.

Tonje Opsal, Ingrid Toftaker, Lucy Robertson

|Dec 05, 2021
Gastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers' perceptions and control strategies.

Tonje Opsal, Ingrid Toftaker, Ane Nødtvedt

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