Close-Up HyD®


A supplement for addition to feed to aid in the prevention of dairy cow metabolic disease at calving, through the enhancement of calcium mobilisation.

Nutritional Benefits

The transition between late pregnancy and early lactation is a high-risk period for many metabolic diseases in dairy cows.  In particular, the failure to maintain blood calcium concentrations after calving due to the rapid demand for colostrum, which has a high calcium concentration, can lead to hypocalcaemia or milk fever.

The Vitamin D metabolite in Close-Up HyD® stimulates hormone activity to mobilise calcium reserves before calving and the onset of lactation.  Without this early stimulation the cow may not be able o satisfy the sudden demand for milk calcium at calving, resulting in increased susceptibility to metabolic problems such as milk fever and grass staggers.  Magnesium is included in Close-Up HyD®, as magnesium deficiency reduces the cow's ability to mobilise calcium reserves.

Feeding Recommendations

140 grams per cow per day from 2 weeks prior to expected calving date through until calving.  The 14-day period is ideally suited to NZ conditions where many cows do not have the luxury of a prolonged pre-calving feeding progamme.

Grain feed is the ideal vehicle.  Effectiveness is enhanced if high potassium pasture is restricted and replaced with low DCAD feeds such as grain meals, brewer's grains (not DDGS), palm kernel meal, maize silage, cereal silage and straw.

Note: Do not commence dosing more than 2-3 weeks prior to expected calving date. Do not administer to other livestock. Discontinue use after calving. Do not administer to lactating cows.

Active Constituents

Magnesium Chloride
25 Hydroxy Vitamin D3 (Hy-D®)
Calcium Sulphate

Disclaimer: All animal feed products should be fed as part of a healthy balanced diet matched to the specific requirements of the herd. Nutrinza makes no representations or warranties of any kind, express or implied, as to the suitability of any of the products supplied to the specific requirements of your animals. Please note that recommended feeding rates are given as a guideline only and will vary based on the total diet and actual feed intake of your animals. It is recommended that you consult your vet, nutritionist or farm consultant before making any dietary changes.