Ruminants Swine

LifeStart metabolic programming

The key scientific principle behind the LifeStart program is known as metabolic programming. This phenomenon has been proven to exist in all kinds of mammals, including human beings and dairy calves. The effect is best described as an improvement of the whole life health and performance of individuals beyond what would previously have been considered their full potential. Metabolic programming is triggered by optimised growth at the start of life. Growth in animals is understood to be dependent on four key factors:

  • Genetics
  • Endocrine function
  • Nutrition
  • Management


From genetics to epigenetics

Genetics has long been thought to be the most powerful of these in determining maximum growth potential of calves. Recent epigenetic research examined changes in the expression of genes caused by external factors. Gene expression appears to be affected by the quality of nutrition and the absence of disease in the crucial early period of life. LifeStart research in dairy calves aims to achieve a deep understanding of metabolic programming, and how this information can be used to optimise rearing programs for calves, optimising udder development and average lifetime daily production.

Enhanced mammary development

The development of mammary tissue is essential to the future productivity of the cow. A 2004 study by Brown et al found compelling evidence that calf growth in the first eight weeks of life is a key factor in stimulating udder development in calves and heifers. A LifeStart feeding schedule results in optimal development of parenchyma – the epithelial and myoepithelial cells that form the milk producing glands in the udder.

LifeStart research into metabolic programming

The LifeStart research program has proved the positive effect of
an elevated plane of nutrition on gene expression and organ development.

LifeStart Themes

Most of the LifeStart science presented on this site is related to a particular stage of the life of a calf or dairy cow. There are however some general themes not related to a particular stage of life.

For a full understanding of LifeStart science, please review the information related to the following
4 themes:

Questions about Calf Rearing?

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1

Metabolic programming

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2

Glucose metabolism

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3

Role of fat in calf nutrition

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4

Lactobalance, osmoregulation and hydration

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