Premix and Additives

In addition to a specially formulated premix which contains essential vitamins and minerals for a calf’s requirements, good health and growth is promoted by probiotics and an anticoccidial.


A complex carbohydrate derived from the cell wall of selected yeast strains. Proven for excellent assistance in newborn diets because it strengthens Gastro-Intestinal tract defensive mechanism by:

  • Blocking Colonisation of Pathogens – these must first bind and colonise the intestinal epithelium. Pathogens including E.Coli and Salmonella strains attach to the intestine via fimbria consisting of mannose bearing lectin added to the diet supplies mannan to occupy receptors and allows pathogens to pass harmlessly through the gut.
  • Providing a nutrient source for benevolent bacteria – beneficial intestinal microbes such as Lactobacilli and Bifidobacteria can utilise prebiotic energy, however pathogens such as Salmonella, E-Coli, Clostridia and Campylobacter cannot.


A source of beneficial lactic acid bacteria developed for application with newborn animals. The digestive tract of a calf or lamb is essentially sterile at birth but quickly becomes colonised with both beneficial and pathogenic bacteria. The ratio between these is finely balanced and largely dependent on external factors like the colostrums quality and the environment. Probiotics beneficial bacteria:

  • Produce lactic acid for a healthy gut
  • Help establish a balanced microbial population
  • Assist in elimination of pathogens that cause scouring
  • Increase resistance to stress
  • Maximise digestive efficiency and calf health

Prebiotic and Probiotic work well together as they both support optimal functioning of the digestive tract and both act against pathogenic bacteria.

XTRACT™ Instant®

Xtract™ Instant® is a unique combination of natural, microencapsulated essential oils. It is a safe, effective and non-antibiotic growth promoting agent. The concept behind Xtract™ Instant® is three-fold.

  • In a similar way to a prebiotic, the Oregano (Carvacrol) stimulates development of the beneficial Lactobacilli through stimulation of volatile fatty acid production. This subsequently reduces development of Entero bacteria, the nasties
  • The Cinnamon (Cinnamaldehyde) has direct influence over development of the microvilli in the small intestine and therefore enhances nutrient absorption. It protects the microvilli and digestive mucosa due to its intracellular antioxidant activity
  • Red Pepper (Capsaicinoid) is again involved with digestion insofar as stimulating digestive enzyme activity to maximise nutrient uptake from a quality milk powder

Significant trial work has been conducted with Xtract™ in calf milk replacers (Leeds University, UK) and trials show:

  • Increased weight gain
  • Increased feed conversion efficiency
  • Enhanced white meat colour (veal production)

Xtract™ Instant® offers a natural means of enhancing digestive efficiency in the young calf, which ultimately results in enhanced growth rate and improvement in feed conversion efficiency.


Anticoccidial’s for calves work directly in the small intestine, where it effectively halts the development of the two most economically significant coccidia in cattle – Eimeria bovis and Eimeria zuernii. Stopping these internal parasite early and sub-clinically in their 28-day life cycle is key to calf health. Calves MUST have decoquinate in their diet immediately when they are weaned from their dam, and milk replacer inclusion is the most reliable, convenient and labour efficient method of administration.


"I have used Ngahiwi’s Calf Milk Replacer for 20 seasons rearing thousands of calves in that time. The product mixes easily and my young calves thrive. Ngahiwi contains as a standard, prebiotics, probiotics and a coccidiostat. Excellent product!"

Chris Coxhead

Bull Farmer, Waitakaruru
"I supplement my replacement heifer program with Ngahiwi Calf Milk Replacer and Whey Milk Replacer. I have never had any calf health problems and find the milk mixes readily and the calves love it. My heifers reached their target weight much earlier and cheaper than previously"

John Hathaway

Businessman and Dairy Farmer (Reporoa)

"The kids are fantastic and thrived from day 1. We can safely say that Ngahiwi Premium Powder with all the goodies added is the best product we have used and it sure made kid rearing a breeze"

Deb Henson

Rearing 400 kids (Feilding)

"I rear over a thousand calves a year and always use Ngahiwi to supplement a liquid whole milk rearing program. I like the product, service and good value of their powder. All that you need - a premix, prebiotic, probiotic and coccidiastat, is in the powder. No need to buy expensive extras."

Blair Snelling

Calf Rearer and Beef Farmer (Maungatapere)
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