Trial Key Facts
- Two batches of 30 calves each, matched by breed, taken from 2 weeks to 11 weeks of age.
- One batch was offered the usual calf starter nut alongside milk, with the other offered the same nut but with most of the soya hull content replaced by NIS.
- The calves fed the standard ration gained an average of 0.99kg per day over the nine-week period, whereas the calves fed the NIS ration gained 1.1 kg per day.
- The cost per kg of each calf starter was the same, but the calves on the NIS ration ate 3.5% more – 152 kg each compared with 146.8kg over the nine weeks.
- 190 incidences of dirty tails recorded throughout the period in the group fed the standard ration, compared with 113 in the group fed the NIS diet.
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