Calf Health Champions

Tara Kinsella

Spring 2022

South East Technological University

This project was split into two trials, trial 1 was carried out to determine the impact of Precision Microbe’s product, a probiotic and postbiotic supplement. The trial consisted of 20 male calves, and all the calves were of the same breed, Holstein X Friesian. The calves ranged in age from 10 – 15 days old. Pen A (control) consisted of 10 calves and Pen B (probiotic & postbiotic supplement) consisted of 10 calves.

From studying previous research, the hypothesis of trial 1 was that the overall health score and average daily gain (ADG) in pen B would be greater in comparison to pen A (control) due to the beneficial qualities that the product being examined claimed to offer.

Trial 2 was carried out to determine the impact of another mineral supplement for calves. The trial consisted of 20 male calves, and all the calves were of the same breed, Holstein X Friesian. The calves ranged in age from 10 – 15 days old.Pen A (control) consisted of 10 calves and Pen C (mineral supplement) consisted of 10 calves.

From reading previous research, the hypothesis of trial 2 was that the calves in pen C (mineral supplement) would record a lower overall health score and a greater ADG than the calves in pen A (control) due to the supplementation of the minerals and trace elements in their diets, that the product being examined claimed to offer. The trial was carried out for a duration of 8 weeks.

GroupDay 1
Starting Weight (kg)
Week 4
Weight (kg)
Week 8
Weight (kg)
Treatment Group 1
(Precision Microbes -
Pen B)
46.761.6583.3
Treatment Group 2
(Pen C)
46.5561.0576.0
Control Group (Pen A)46.5561.3577.55

Trial Results

Treatment Group (Precision Microbes) had a 115g/day in calves from arrival to weaning improvement in comparison to the Control Group.