Because of the complexity of the interactions involved very few attempts have been made to trace the fate of ingested food in the course of its digestion and absorption along the alimentary tract of the ruminant. Elsden, Hitchcock, Marshall & Phillipson (1946) made a comparative study of the weights of the digesta and their dry-matter and volatile fatty-acid content in the consecutive parts of ...

The net uptake and output of plasma unesterified choline, glycerophosphocholine, phosphocholine and lipid choline by organs of the conscious chronically catheterized sheep were measured. There was significant production of plasma unesterified choline by the upper- and lower-body regions and the alimentary tract and uptake by the liver, lungs and kidneys. The upper- and lower-body regions draine...

Of 582 episodes of infective endocarditis 75 were attributable to organisms normally resident in the bowel and 12 others were associated with alimentary tract operations, investigations, or disease. The mean age of the 87 patients in this particular group was higher (59.7 years) than that of all the patients with infective endocarditis (51.4 years). As far as could be ascertained 41% had no pre...

Duplication of the alimentary tract is a rare but well-known condition, the aetiology of which is imperfectly understood. The present knowledge and theories are discussed by Willis (1958). Duplications occur on the dorsal or mesenteric aspect of the normal alimentary tract and may or may not communicate with it. Often they do not communicate and the secretions of the epithelial lining lead to c...

I investigated the microanatomy of distal urogenital system male Wood Frog (Lithobates sylvaticus) from a small sample (n = 6) collected in northern Arkansas February 2020. Specifically, my primary objectives were as follows: 1) to focus on histology paired Wolffian (urogenital) ducts caudally kidneys their merging with urodeum cloaca, 2) reveal structure seminal vesicles (sperm storage structu...

This paper reports a new method of estimating protein loss from the alimentary tract using radio-iodinated human serum albumin (RIHSA). This has advantages over the use of (131)I-PVP.

Parasitic nematode worms (Aspicularis tetraptera) were observed microscopically in histological sections of the colons of C57BL/6StCrl female mice. These nematodes have gram-positive bacteria intimately associated with the mucosal epithelium in their alimentary tract.

The stable fly, Stomoxys calcitrans, has a great importance in medical and veterinary health due to its feeding and reproductive habits, which can disseminate some pathogenic agents among hosts even at long distances. This study aimed to describe, for the first time in Brazil, the bacterial microbiota in segments of the stable fly. Bacterial species were isolated from three different segments (...

BACKGROUND Nanotechnology offers great potential for molecular genetic investigations and potential control of medically important arthropods. Major advances have been made in mammalian systems to define nanoparticle (NP) characteristics that condition trafficking and biodistribution of NPs in the host. Such information is critical for effective delivery of therapeutics and molecules to cells a...

this investigation was undertaken to verify the prevalence of helminths parasites in the gastrointestinal tract of catfish. a total number of 116 catfish (silurus glanis) were collected from zarrine-roud river and examined for helminths. fish were examined after washing contents of gastrointestinal tract and observed for the presence of helminths using a stereo microscope and a light microscope...