Improving the lifetime yield of a cow is a top priority in dairy businesses as we continue to improve efficiencies. This can be impacted from the moment a newborn heifer calf arrives, to when the animal enters the parlour at the start of its first lactation.
While there are lots of areas to focus on to set a heifer up for a healthy and productive life in the herd, I’ve narrowed it down to my top three areas to prioritise pre-calving.
The UK is experiencing more frequent heatwaves each summer, with temperatures reaching the highs of 30°C in the day and evening in-shed temperatures staying above 20°C, as a result cows will struggle and performance and fertility may be effected.
One of the most effective ways to prevent grass tetany in dairy cows is magnesium supplementation during the risk period. Choosing the supplementation source is quite challenging in practice, magnesium oxide being commonly used to prevent Mg deficiency, but the solubility and therefore the bioavailability varies greatly in practice (1).
There are no silver bullets in farming. If there was a management practice that resembled one, then relentless attention to detail would have to be the closest option. When it comes to dairy farming and in particular transition cows than the 4 F’s are often cited as the nearest thing (Forage, Feet, Feed, Facilities) although choline nutrition could be considered a close second.
80% of disease and animal losses in the dairy herd occur from 21 days pre-calving to 60 days post-calving. Here are 3 main check-points for drying off, to ensure a more successful transition:
Low magnesium status and sub-optimal rumen pH can be no stranger at spring turn out. At Wynnstay we believe the dual functionality of pHix-up, can be harnessed to both safeguard rumen health and enhance magnesium supply at grass.
Grazing in the spring often leads to a loss of production in dairy cows. Grass tetany may be the cause. The disease causes a decrease in appetite, milk production and milk fat content. The cause: a lack of magnesium, often associated with a drop in ruminal pH.
Home grown feed is the cheapest feed available to farmers. Hardly a revelation but as farm inputs continue to rise the drive for milk from forage becomes a more crucial metric. Every additional litre from forage could be worth up to 20p per cow per day, or £600 per month for every 100 cows in the herd.
Dry matter – Is grass providing enough dry matter intake to support the energy requirement for milk production and getting cows back in calf?
Protein – Grass is high in rapidly degradable protein; this needs to be utilised by the rumen microbes in order for them to produce microbial protein. Poorly utilised protein can have a negative impact on fertility and limit milk yield.
Rapidly fermentable carbohydrates – Early season grass is high in sugar (and digestible fibre), this can be an issue for rumen health. A consequence of this can be milk fat depression and a reduction in milk value. It is important to understand the nutrient content of grass. Fresh grass analysis throughout the grazing period will provide useful information about the points above.
Sustainability is a key part of our business, with our mission being to help farmers feed the UK in a more sustainable way. As a business, we are working towards becoming carbon net zero and aim to support our customers with products and services that help drive sustainability and efficiencies. Through our feed division we have made the following commitments:
