The line graphs show the rumination activity and milk yield during the study period, with data from the last week of the dry period up to and including the 8th week of lactation. It becomes visible that the rumination activity of the two test groups is higher than the control group during the entire test period. These differences are significantly measured in test group-2 from 1st, 2nd and 8th week of lactation compared to the control group. Milk production shows significant differences in the 2nd day up until the 1st week of lactation for both test groups compared to the control group. After the 2nd week the test groups do split and from the 2nd week to the 8th week of lactation, only test group-2 shows significant differences compared to the control group (P ≤ 0.05).
Topro Calcium bolus conclusion
According to this field study, it can be concluded that preventive treatment with Topro Calcium boluses has a positive influence on rumination activity and milk production of dairy cows. An additional calcium treatment shows significantly better results than a single treatment from the 1st week of lactation.
We can conclude that by giving a 2nd calcium treatment reduces subclinical milk fever and the cow will feel fitter, which increases rumination activity (and thus feed intake) resulting in a higher milk production. Applicating a double treatment of calcium is very profitable.
sign 1,2 = significant differences between test group-1 and control group and between test group-2 and control group (P ≤ 0.05).
sign 2 = significant differences between test group-2 and control group (P ≤ 0.05).