Find out the answers to the most common questions about X-Zelit

  • Significantly reduced cases of milk fever  
  • Increases milk yield
  • Increase in colostrum quality 
  • Increases fertility, reducing the time to pregnancy
  • Reduction in SCC

X-Zelit is used for the dry cows in the close-up dry period of the last 14/21 days before the parturition. At calving, it is important to stop feeding X-Zelit!

X-Zelit bind the calcium and phosphorous from the cow’s feed, which reduce the absorption of these minerals. The lower blood phosphate and calcium levels will provoke mobilisation of calcium and phosphorous from the bones. At calving the cow is therefore trained for mobilisation of phosphate and calcium which will prevent her for being hypocalcemic in the periparturient period.

Yes, it’s really easy. Simply feed to your close-up dry cows two/three weeks prior to calving. Supplement pre-calving dairy cows 10 g of X-Zelit per g of dietary phosphorus intake for 14-21 days prior to calving.  Typical phosphorus intakes for pre-calving dairy cows are 35-50 g of phosphorus/cow/day yielding X-Zelit feeding rates of 350-500 g/cow/day.

No. If the product is used correctly there should be no other side effects. 

Yes. X-Zelit is a stand-alone hypocalcemic mitigation strategy and can be added into almost any close-up TMR ration. It replaces supplemental anionic products to help improve blood calcium at calving.

No.  X-Zelit is recommended and works best when fed at the rate of 10 g of X-Zelit per gram of dietary P for 14-21 days prior to calving. X-Zelit should not be fed for the entire dry period. If you have questions on how X-Zelit best fits into your transition cow program, please contact us.  

Yes, as it still helps with calcium balance from the rest of the diet. 

X-Zelit works via binding of dietary phosphorus which induces the cow to mobilize both calcium and phosphorus from the bone. When fed at the recommended ratio (10 g of X-Zelit/g of dietary phosphorus) X-Zelit may bind a slight amount of dietary calcium and magnesium. Adequate dietary calcium is often fed and adjustments are seldom needed. Slight increases in dietary magnesium should be considered. 

The calcium and phosphate are beneficial to be bound before parturition but after parturition, the cow has a high demand for both phosphorous and calcium. So it’s important to stop feeding X-Zelit at calving.

Yes. We recommend supplying the dry cows with minerals and vitamins to fulfil their nutrient requirements. Mineral phosphorous should not be added.

No. In general, the CAB of the diet does not influence X-Zelit performance. X-Zelit has an entirely different mode of action than CAB diets. In addition, X-Zelit has different management practices (no urine pH measurements, no low potassium forage requirements) than those associated with feeding anionic supplements. X-Zelit provides an effective and easy option to improve blood calcium in cows at calving and allows a wider utilization of forages in pre-fresh diets. 

If you are in doubt whether you have the full effect of X-Zelit, we recommend taking a blood sample within the first 24 hours and analyse the blood calcium and phosphate level. The blood calcium level should be above 2,15 mmol/L and the blood phosphate level are usually around 0.8 mmol/l with correct use of X-Zelit.