Calf rumen development - the key ingredients...
When a calf is born, it’s stomach (the abomasum) is 2–4 litres in size. It secretes enzymes that digest milk, providing the calf with energy and protein for growth.
However, over time, we need to turn a calf’s stomach into a cow’s stomach: a 150–200 litre rumen where microbial enzymes do the digestion to provide a cow’s nutrient needs.
To put this change into perspective: stack up eight or ten 20-litre buckets to make a “rumen” and put a 3-litre milk bottle “calf stomach” next to your tower for comparison!
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