Effects on wool growth rate of abomasal supplements of several amino acids (glycine, glutamic acid, arginine, lysine, and threonine) and of some sulphurcontaining compounds (L-cysteamine, sulphuric acid, and methionine hydroxy analogue) were examined. None of the abomasal supplements, apart from methionine hydroxy analogue, was effective for stimulating wool growth. Methionine hydroxy analogue ...

School of Veterinary Medicine, Purdue University, Lafayette, Indiana, USA [email protected] Medizinische Tierklinik der Universität Leipzig, Germany Faculty of Veterinary Medicine, Assiut University, Egypt Dept of Veterinary Clinical Medicine, University of Illinois, Urbana, Illinois, USA Dept of Internal Medicine, Faculty of Veterinary Medicine, University of Selcuk, Konya, Turkey Faculty of...

The transition period occurring 2 wk prepartum through 2 to 4 wk postpartum is the major risk period in the etiology of left displaced abomasum. The prepartum depression of intake and the slow postpartum increase in intake are risk factors causing lower ruminal fill, reduced forage to concentrate ratio, and increased incidence of other postpartum disorders. Uncomplicated ketosis, retained place...

1. Studies of gastric function were made in preruminant calves fitted with a single abomasal cannula, re-entrant cannulas in the duodenum close to the pylorus and recording electrodes on the pyloric antrum and proximal duodenum. 2. Simultaneous measurements were made of gastric emptying of a saline (9 g sodium chloride/l) meal, myoelectric activity of antral muscle and plasma concentration of s...

Van der Velde, P., I. Koslowsky, and H. S. Koopmans. Measurement of gastric emptying during and between meal intake in free-feeding Lewis rats. Am. J. Physiol. 276 (Regulatory Integrative Comp. Physiol. 45): R597–R605, 1999.—A new scintigraphic measurement technique is described that allows accurate assessment of gastric emptying in between as well as during a number of successive meals. Measur...

A new scintigraphic measurement technique is described that allows accurate assessment of gastric emptying in between as well as during a number of successive meals. Measurements were made every minute of food intake, gastric nutrient filling, and gastric emptying over a 6 h, 40 min period in conscious, free-feeding, loosely restrained rats. Before receiving access to the food, the animals had ...

1. Lipolytic and proteolytic activities and pH values were determined in secretions collected from innervated abomasal pouches and in abomasal contents from preruminant calves given liquid diets. 2. No lipolytic activity was detected in pouch secretions collected during 1 h after feeding, though lipolytic activity was present in abomasal contents; pepsin (EC 3.4.23.1) and renin (EC 3.4.23.4) we...