Page number 4
Study from Cornell University A study by Tom Overton at the highly recognized Cornell University in USA proves the unique concept of X-Zelit. The following four figures on X-Zelit demonstrate the key conclusions: X-ZELIT AND FERTILITY 100 X-Zelit Control 90 Percent of animals non-pregnant 80 70 X-Zelit reduces time to 60 pregnancy with 19 days. 50 40 30 20 X-Zelit has three times more cows pregnant at day 150. 10 0 50 60 70 80 90 100 110 120 130 140 150 Day in lactation X-Z elit Control X-ZELIT AND MILK YIELD In the first week the milk yield is slightly lower, but thereafter the cows respond positive and in week 3 and 4 they produce around 1.5-2.0 l extra. Usually this will continue throughout the lactation. Energy corrected milk (kg/d) 56 55 54 53 52 51 -0.8 kg ECM 50 49 1 +0.7 kg ECM +1.9 kg ECM 2 3 Week relative to calving X-Z elit Control +1.5 kg ECM X-Zelit Control 4 Kerwin et al., 2019
Page number 5
Quick return to feed after calving DMI (kg/d) DMI (kg/d) IgG (mg/dL) 26 26 24 24 22 22 20 20 18 18 16 16 14 14 12 12 10 10 -3 -2 -3 -1 -2 0 -3 -1 1 -2 0 2 -1 1 3 0 2 4 1 3 2 4 Week rel W at e iv e e k t r o el c a a t W l i v v i e n e g t k o r c e a l l a v t i i n v g e to calving X-Zelit Control 34 Th X e -Z f e i l r it st w X e -Z e e k li C t a o f n t t e ro r X l c -Z a C e lv l o it i n n tr g ol the C fe o e nt d ro i l ntake was found to be nearly 1 kg DM higher in the X-Zelit group – demonstrating the quick return to feed after calving. During the first 4 weeks the feed intake were +0.5 kg DM higher for the X-Zelit group. This ensures a higher energy intake in the animals, which probably explains some of the positive effects found on other production traits.” X-ZELIT AND COLOSTRUM QUALITY High quality colostrum is of crucial importance for the health and wellbeing of the newborn calf. X-Zelit improved the colostrum quality in the X-Zelit group with approximately 10% compared to the control group. 8400 8200 8000 7800 7600 7400 7200 7000 X-Z elit Control Kerwin et al., 2019
