Monday, 6 November 2017

Nutritional wisdom of poultry .......low cost and low carbon egg production.

The first limiting factor in animal production systems is dietary energy. You can feed all the protein, minerals and vitamins you want but unless animals have enough energy in their ration they will not thrive and produce,

In egg production systems we feed a balanced energy rich, protein rich pellet fortified with minerals and vitamins...... everything the hen needs for egg production. These "layers pellets" make up about 70 per cent of the cost and 70 per cent of the carbon footprint of egg production.

There is an alternative to proprietary rations for for free range hens A large poultry farmer in the Netherlands has 24,000 free range hens fed on biscuit and bakery waste ( high in energy). Because they are free range they can also eat insects, worms, frogs....even mice and plant material to balance their diet.Low carbon, low cost eggs Research shows that hens can select an optimum diet if presented with several different feeds, they learn to do this over time

Real "free range" they go everywhere
My own hens have access to layers pellets and mixed corn ( whole wheat, kibbled maize, oats high in energy). They eat more of the mixed corn than the pellets and still lay perfectly well so are they showing "nutritional wisdom" and balancing their own diets with the wide selection of proteins available out there?

Given the scientific evidence that hens can and do select an appropriate and balanced range of proteins in their free range environment so I am tempted to feed only mixed corn which is cheaper than pellets and has a lower carbon footprint than pellets.

References

Forbes,J.M. and Covasa,M. Application of diet selection by poultry with particular reference to whole cereals, World's Poultry Science Journal, vol 5, issue 2, 1955, pp. 149 - 165



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