Which of the following structures is not a part of the digestive tract of pigs? by Sunday | Jun 8 | Agricultural Science WAEC | 0 comments A. oesophagus B. proventriculus C. duodenum D. colon Correct Answer: Option B – proventriculus Users Also Read These:Dried cassava should not exceed 50% of the total…Which of the following structures is not an organ of…The part of the ruminant stomach from which…In the diagram of the digestive tract of a farm…The diagram below is the digestive tract of a farm…