The different compartments of the ruminant stomach develop from the foregut spindle in foetal life. During embyogenesis and after birth the [[The Abomasum|abomasum]] is the largest of the compartments (over half of the weight and capacity of the four stomachs) due to the [[oesophageal groove|Oesophageal Groove]] directing milk from the oesophagus to the [[The Rumen|rumen]] into the [[The Abomasum|abomasum]], bypassing the [[The Reticulum|reticulum]]. | The different compartments of the ruminant stomach develop from the foregut spindle in foetal life. During embyogenesis and after birth the [[The Abomasum|abomasum]] is the largest of the compartments (over half of the weight and capacity of the four stomachs) due to the [[oesophageal groove|Oesophageal Groove]] directing milk from the oesophagus to the [[The Rumen|rumen]] into the [[The Abomasum|abomasum]], bypassing the [[The Reticulum|reticulum]]. |