The intestine of a calf is still developing throughout the first few weeks of life, and production of digestive enzymes are increasing with age. The calf doesn’t obtain all the nutrients available in liquid feeds for a period after birth.
We expect our calves to be able to cope and adapt to shifts in their nutrition throughout the pre-weaning phase, the first being from colostrum to whole milk/milk replacer and the last being from liquid to solid feed. Weaning is without doubt one of the biggest transformations the Gastrointestinal tract (GIT) will undergo and therefore understanding when and how we can best manage this juncture to avoid growth checks and impaired GIT health is important to the productivity of our calves.
Many farmers prefer to use whole milk to feed their calves. Some find it more convenient, others believe it to be a more natural product that is best suited to the calf – nature’s original liquid feed strategy.
Avoid the risks of exceeding nutrient tolerance. The graph shows at what level calves reach their nutrient tolerance for lactose. The red line represents a typical high plane of nutrition using a typical calf milk replacer where, especially early in life, there is a risk of exceeding lactose tolerance, leading to nutritional diarrhoea.
A difficult birth can have a negative impact on health, performance, and survivability of youngstock. We must aim to not only reduce levels and severity of dystocia but also put protocols in place to manage calves from difficult births.
Reduced calving age from one year to the next may suggest improved calf and heifer rearing; however it is months later when we can make these assumptions. If a heifer is first served at 18 months old, it can be assumed that there are improvements to be made to allow future heifers to reach service weight earlier. But it is difficult at this point to then determine at which stage of rearing that this heifer didn’t meet her targets and fell behind.
If we dried whole milk to a powder the protein level would sit at an average of around 24% and the fat level 30%. At 23% protein and 27% oil our new Elixir+ is as close as it gets!
Calf rearers across Wynnstay’s trading area now have an improved understanding of the important nutrition, health and hygiene practices so necessary for calves to hit optimum development and growth targets.
Colostrum is a concentrated source of nutrients, which includes fats, proteins, Immunoglobulins such as Immunoglobulin G (IgG), carbohydrates, vitamins and minerals. Ensuring that a newborn calf gets the correct amount of good quality colostrum as soon as possible after birth is paramount to produce a healthy calf.
Weighing calves on an electronic scale sounds like good practice – but who has got time for that?! I caught up with a couple of dairy farmers who have bought an electronic scale within the last 12 months to ask their thoughts so far on using it.
