A complex system of economic and political policies has led to the mass over production of corn in the United States. As a result of this overproduction, we now see corn in the majority of processed foods as well as animal feeds, in particular cattle feed. However, evolutionarily cattle are adapted to pasture diets not corn-based diets. Cattle have complex digestive systems, consisting of the r...

Ruminants may ingest appreciable quantities of nucleic acids and large amounts are synthesized by the microbial population in the reticulo-rumen. The importance of nucleic acids to the nutrient intake of the ruminant is probably dependent on the amounts of these materials relative to other nitrogenous substances which are presented to the small intestine. These amounts bear little or no relatio...

The review article provides up-to-date scientific information on the characteristics, classification and mechanisms of biological action pro-, pre- synbiotics in digestive tract ruminants. literature sources recent years influence synbiotic supplements (when adding them to diets ruminants) metabolic processes body, intensity growth, development quality products obtained from domestic ruminant a...

This study aims to evaluate the effects of dietary concentrate: forage ratio (C:F) on development gastrointestinal tract in Tibetan lamb. A total 60 healthy two-month-old weaned black sheep (approximately 10.50 kg initial body weight) were assigned three treatments and fed C:F 70:30 (HC group), 50:50 (MC group) 30:70 (LC group). Using haematoxylin-eosin (HE) staining, morphological results show...

The objectives of this study were to test the interaction of breed (Nellore or Angus) and diet (whole shelled corn [WSC] or ground corn [GC] with silage) on growth performance, carcass characteristics, and ruminal pH of young bulls. Thirty-six bulls (18 Nellore and 18 Angus) with the range in age of 18 to 22 mo and BW of 381 ± 12 kg were used in a completely randomized design experiment with a ...

This review article summarizes the ultrasonographic findings of the reticulum, rumen, omasum, abomasum and intestines of goats. Ultrasonographic examination is done on both sides with the goat in a standing position using a linear array or convex transducer with a frequency of 5.0 to 7.5 MHz. The shape, contour and motility of the reticulum are assessed; this organ appears as a crescent-shaped ...

BACKGROUND Diversity and composition of microbial communities was compared across the 13 major sections of the digestive tract (esophagus, reticulum, rumen, omasum, abomasum, duodenum, jejunum, ileum, cecum, ascending colon, transverse colon, descending colon, and rectum) in two captive populations of American bison (Bison bison), one of which was finished on forage, the other on grain. RESUL...

The selective retention of particles in the reticulo-rumen and in the gastrointestinal tract distal to the reticulo-rumen was studied in fistulated sheep maintained on a roughage diet. Polyethylene glycol and plastic particles of different lengths (1 and 10 mm) and densities (0.92, 1.03, 1.22 and 1.44 g/ml) were either fed or were introduced into the omasum. The mean retention time in the retic...