The use of guava leaf (Psidium guajava Linn.) control diarrhea diseases in dairy calf (Thai)

Abstract

The study was conducted using guava leaf powder (0.2, 0.5 and 1.0 g/kg BW per day) compared to
norfloxacin (0.5 ml/10 kg BW per day) for the treatment of diarrhea in dairy calves during newborn to
weaning age. A total of 20 male dairy calves were randomly allocated into 5 groups (4 calves in each group)
with a completely randomized method. Each calf was ovally inoculated with E. coli 500 cfu at 3 weeks of age
and 12 weeks of age except for calves in the control led group, in order to induce diarrhea. The results showed 
that for calves 3 weeks of age, using guava leaf powder at the dosage of 1.0 g/kg BW per day was an effective
dose and it could cure diarrhea within 2.75 days similar to using norfloxacin (3.00 days) (p>0.05). However,
for calves 12 weeks of age using guava leaf powder at the dosage of 1.0 g/kg BW per day could cure diarrhea
within 4.00 days which is significantly higher than that of norfloxacin treatment (3.00 days) (p<0.05).
Treating guava leaf powder at the dosage of 0.2 and 0.5 g/kg BW per day were ineffective for the treatments
of diarrhea in both age groups. The study concluded that 1.0 g/kg BW per day of guava leaf powder was an
effective treatment for diarrhea in calves aged 3 weeks and it yielded similar effects to treatment with norfloxacin treatment.