More milk, better fertility

Megalac pack preview product detail

Megalac is a rumen-protected fat supplement which increases energy supply in diets without increasing the acid load in the rumen and risk of acidosiss, unlike starchy sources of energy such as cereals.

Megalac is an ideal supplement to increase energy supply in early lactation diets of cows and sheep and is well-proven to improve cow fertility.

Megalac in 60

Features and Benefits

  • Increases milk yield – average 2.3 litres/day
  • Improves egg quality and conception rates
  • Increases progesterone (the key hormone for pregnancy)
  • High ME = 33.3 MJ/kg DM
  • Highest measured NE = 27.3 MJ/kg DM
  • Not fermented in the rumen – energy without risk of acidosis
  • Suitable energy source for all ruminant species
  • Proven for over 30 years

Feed Rates

  • Lactating cows 400-800 g/head/day
  • Dry cows 125 g/head/day
  • Beef cattle 150-500 g/head/day
  • Sheep & Goats 50-100 g/head/day

Megalac should be mixed with other ingredients in the diet and can be included as part of a total mixed ration, blend or compound pellet.

Megalac pile


Available in 25kg bags on pallets, mini-bulk bags and true bulk.

More Milk

The average increase in milk yield, recorded across 18 research studies, is 2.23 litres/cow/day from a standard supplement of approximately 500g of Megalac.

Penn State University, USA

What the expert says

Photo DPalmquist for brochure

Research has shown that Megalac increases milk yield more consistently than other fat supplements and contributes to improved fertility.

Prof Don Palmquist

What the farmer says

Richard Best Sml

Megalac has been an integral part of our all-year-round feeding regime for many years to help promote milk yield and fertility. Boosting the energy density of the diet with Megalac helps support high yields while preserving body condition and fertility.

Richard Best, Marsh Farm, Saltash, Cornwall, UK

What the farmer says

John Hannan Image

Megalac is a key part of the ration for my cows all year round. With an average milk yield of 13,000 litres/cow, energy demands are high and Megalac allows me to increase energy supply without compromising herd health.

John Hannan, Friarstown, Crecora, Co. Limerick, Ireland