The use of treated rape cake in calf starter diet
2006
Goepfert, E. | Trckova, M. | Dvorak, R.
The objective of the experiment was to evaluate the effect of starter diet containing 10% of treated rape cake (TRC) with a reduced glucosinolate content on calf growth, development and health. The experiment included 45 calves allocated into 3 groups. After the colostrum period (5 days) the calves were fed 4 L of pooled fresh milk per calf/day and one of the starters ad libitum. The control group (S) was fed Standard starter. The group T was fed Telstar starter, which contained whole maize kernels and protein pellets. Experimental group G was fed Grant starter containing 10% of treated rape cake. The calves were fed hay ad libitum from 10 weeks of age. An insignificantly higher body weight of calves was recorded for the G group at the end of the experimental period. Weight gains obtained in the groups G and T were by 4.0% higher and by 5.4% lower, respectively, than in S calves. No significant changes were observed in N, energy, lipid and mineral metabolism, health status, hepatic parenchyma and thyroid function. The G diet had no adverse effect on the ruminal fermentation. The starter diet with 10% content of treated rape cake had no adverse effect on calf growth and performance.
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