Calf Shed Hygiene Starts with Chemistry
Good Calf shed hygiene has always been about providing clean, dry bedding.
Collier says the abomasum of a new-born Friesian calf is only 1.2 litres, so with big feeds, the milk spills into the calf’s rumen.
He says Calf Xtreme has been developed to turn this into a positive.
“We’ve refined the probiotic strains, so calves avoid nutritional scours.
“At the same time, we’re establishing beneficial bacteria in the rumen at a young age, improving digestion of meal, hay and grass.
“Therefore, the intake of hard feed is not limited by high milk volumes, they simply grow faster and post weaning intake of grass is higher.”
Near Te Puke, Nicole Oppert, along with her husband Kevin, rears 200 crossbred heifer replacements on their 260 hectare equity farm purchased two years ago, as well as supervising another 200 calves on a second equity property. Nicole has always reared calves on a once-a-day system.
“On day one we offer them 5 litres of gold colostrum. By day three they can be drinking 6-7 litres of milk, so they get to 8 litres once a day by 8 to 10 days of age. Then we maintain that level until weaning.”
Nicole has always reared calves on a once-a-day system and has had 7 years’ experience using Calf Xtreme.
“It allows for a huge increase in milk volume and despite the extra milk, the intake of hay meal and grass also goes up significantly. Our heifers are much bigger at calving, and we’ve had no calving difficulties this year.”
Growth rates before and after weaning have also impressed.
Collier says Friesian calves consuming 7-8 litres once a day by around 10 days of age are averaging close to 1kg of liveweight gain per day from birth to Christmas – indicating no post weaning check.
While early growth is encouraging, Collier believes the real value comes later.
“The objective isn’t simply heavier calves at weaning. Faster early growth leads to better-developed heifers entering the milking herd, and that’s where the production gains can be realised.”
DairyNZ guidelines indicate first-calving heifers typically produce around 75-80% of the milk solids achieved by mixed-age cows.
Collier cites an example of a Stratford farmer who used Calf Xtreme to change from feeding 2 litres twice a day to 7 to 8 litres once-a-day by day 10. “Research shows better tissue is being laid down in the udder in the first five weeks of a calf’s life and they are still growing better after weaning
off milk.
“On this farm heifer milk production compared with mixed age cow production has lifted from 74% to 86%. That’s a lift of 50kg milk solids per heifer”
As more farmers look for ways to improve labour efficiency as well as improve heifer milk production, once-a-day feeding programmes supported by nutritional technologies are attracting increasing attention across the dairy sector, Collier adds.
