Succeeding in lactation management with Specialist Nutrition

Donal Maher, a dairy farmer from Drangan in south Tipperary will calve 170 Friesian dairy cows this Spring; an increase of 20 since 2016. The herd, who are grazing a block of 75Ha, yielded an average of just over 5,900Lt while maintaining high milk solids of 477kg per cow in 2016.

Approaching a point where his grassland potential is nearly maximised, Donal looked at cost effective ways to improve his farms profitability by using bought and home grown feed. To achieve this he began working closely with Michael Cleary, a Nutritionist from Specialist Nutrition, who he has been working with for over ten years now.

Through an increased focus on nutritional management, Donal and Michael have improved farm performance in a sustainable and profitable way; growing cow numbers from 37 to today’s 170 strong herd. Achieving this strong farm growth while also sustaining impressive fertility rates and increasing yields, has proven that it can be accomplished in a very profitable way.

Growing herd performance and fertility

Ensuring cows reach their yield potential while maintaining strong milk solids throughout the year is the key principle Donal and Michael have worked together to achieve. The successful formula has been to provide Donal’s cows with a balanced, high energy diet once they calve through a combination of grass silage, wholecrop cereals, straights and Liquigold.

Body condition scoring is constantly monitored along with milk solids and feed is then manipulated to suit conditions whether cows are housed fulltime during the winter or are buffer fed during the Spring and Autumn grazing months.

Donal states that ‘It’s vital to feed your cow well in the first 12 weeks after calving. Through this focus, I’ve been able to manage a tight calving interval of under 370-days in the past few years, even with some of the poor springs we’ve experienced’. Paying close attention to nutrition during this critical period enabled Donal to achieve an impressive 74% cows calved within a 6-week period last year.'

Michael Cleary explains that ‘In early lactation it is essential to provide a high energy, palatable diet during the breeding season and up to 60 days in calf to increase dry matter intakes and minimise body condition loss. This is achieved by using products like Liquigold, wholecrop and a choice of straights, then balancing them correctly in terms of nutrition and mineral content.

During the crucial spring period, Donal says; ‘I am in regular contact with Michael, who advises me on diet adjustments until all animals are fully grazing on grass.’

Herd nutritional management

Detailed analysis and management of his herd’s diet has been the key to Donal and Michael’s success in maximising farm success. Specifically, once the cows calve down, Donal feeds a forage based diet; which provides fibre, high energy and dilutes the protein to complement spring grass. Once the Dry Matter increases in later spring grass, Donal eases off buffer feeding to rely more heavily on his grazing platform and a small amount of home mixed parlour concentrate.

Donal limits parlour concentrate to 2 kg’s maximum feed rate throughout the lactation period. Managing his herds nutritional programme in this way allows Donal to make high quality first cut grass silage in early May, without conflicting with fresh grass demands from the milking herd.

Liquigold, at 1.5kg per head, has particularly helped his management of the herds body conditioning 'Before using Liquigold I experienced greater fluctuations in herd body condition loss. I have now reduced this loss after calving, which in turn has helped to increase submission rates; especially at the early stages of the breeding season. I credit this to an increased intake of up to 10% due to Liquigold’s palatability, along with the balance of protein and energy that Liquigold provides in the diet.’

Michael agrees explaining that ‘Liquigold helps to blend the overall TMR mix together to minimise sorting, and guarantees cows are feeding at a consistent rate for the entire day.’

Another product Donal uses is Vistacell; a high density live yeast additive that increases the growth of beneficial rumen bacteria, which removes oxygen from the rumen. He describes that ‘since using Vistacell I’ve noticed the cows dung is a lot more consistent and I’ve seen less cases of soft dung throughout the whole herd. I can also visibly see a better fill in cows and they appear to be more content.’

In addition, Vistacell enables cows to settle better into the introduction of new ingredients in their diets, like spring grass, while still maintaining relatively high levels of dry feed.