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69 Table 1. LifeStart calf rearing objectives


Milk and enhanced early growth


Recent studies have demonstrated accelerated early growth in calves through intensive feeding with high quality milk-based feeds. Typically this feeding is carefully controlled for the first eight weeks of life, during which time solid feed is introduced in lower amounts than usual to allow optimal milk protein and fat intake.


The LifeStart programme targets high average daily gain (ADG) and higher weight at weaning achieved through an increased regimen of quality calf milk replacer (CMR). Whereas a conventional CMR regime based on a powder of


Testimonial “We knew we were already getting good calf rearing results, but feeding NWF UltraLife Milk Powder has taken our calf rearing to that next step. It mixes well, calves are satisfied; they transition to 3 litres per feed quicker without scour and are fighting fit to grow on” Shelia Yates, East Logan, Castle Douglas. Gold Cup 2015 Finalists


22% crude protein and 18% fat might be fed at 100g per litre in five litres per day (550gDM/day) which can achieve a target ADG of 500g/day; the accelerated high ADG boosts feed rate to 150g per litre in six litres (900gDM/day) for an average growth of 800g/day. “One of the benefits of increased growth rates is a lower age at first calving, which in turn increases the potential productivity of the heifer whilst lowering the overall cost of production. Studies show that for every gram of extra pre- weaning daily liveweight gain, up to an average extra 10 litres of milk was produced during the first lactation,” concludes Adam, who adds that the programme


aims to deliver an average first lactation increase of four litres per gram of extra ADG. Further research While studies have demonstrated significant benefits from a focus on optimal calf weight gain, the LifeStart programme is continuing research in the area. The research programme, undertaken by Trouw Nutrition with support from Cornell University, has a trial underway monitoring 80 Holstein Friesian calves from birth, with half fed 30kg of CMR in the first eight weeks and the other half fed 60kg. To access results from the trial, go to www.lifestartscience.com


NWF ULTRA LIFE MILK POWDER


A new high quality milk replacer providing optimal protein and fat intakes to boost early growth.


• This 24% protein and 20% oil milk powder is suitable for accelerated heifer rearing programmes on either bucket systems or computer controlled machines.


• 70% total milk solids which are carefully selected with maximum nutritional value.


• Balanced blends of superior oils which are homogenised and emulsified for maximum digestibility.


• Protimax egg powder, delivering antibody science.


• Includes Nuklospray and Fibosel to drive efficient digestion with pre-digested proteins.


For further information visit www.nwfagriculture.co.uk


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