The maximum effective and safe dosage of oxytetracycline was used (Sarker et al., 2000).
However, the amount of dosages and frequency of application, application methods have impacts
on efficiency and residual periods (Cabello et al., 2013). The residual periods of oxytetracycline was
found until 42 days of experiment (Fig. 7). However, more controlled studies are needed to make
a conclusion about safe dosages for treatment purpose and growth promoter.