In three experiments broiler chickens were inoculated with sporulated Eimeria acervulina oocysts at 18 d of age. Feed intake, body-weight gain, brush-border enzyme activities, fat digestion, protein digestion and protein retention were measured. Body-weight gain was reduced during the acute phase of the infection and increased during the recovery phase of the infection. Feed intake was decrease...

We performed a clinical, biochemical, and genetic study in 16 patients from 11 families with adult-onset acid maltase deficiency. All patients were compound heterozygotes and carried the IVS1(-13T --> G) transversion on one allele; the second allele harbored either a deletion of a T at position 525 in exon 2 (7 probands, 64%) or a deletion of exon 18 (1 proband, 9%). Deterioration of handicap w...

Maltase-glucoamylase (a-D-ghcoside glucohydrolase, EC 3.2.1.20) is a glycoprotein ectoenzyme of the intestinal brush-border membrane. It appears to be the largest component of this membrane (Galand & Forstner, 19746; Maestracci et al., 1975) and its mol.wt. has been estimated by a number of methods to be 4 x 105-5x lo5 (Forstner, 1971 ; Galand & Forstner, 1974~ ; Maestracci et af., 1975). Despi...

Nine patients with adult onset acid maltase deficiency were seen at the Nijmegen University Hospital and the St Elisabeth Hospital, Tilburg , during the period 1970-1982. Five of these patients developed respiratory failure, and in four this was the initial symptom. The occurrence of respiratory failure as an early symptom of this muscular disease is discussed.

A single mutation in Saccharomyces cerevisiae conferred sensitivity to low concentrations of actinomycin D. Treatment with actinomycin D preferentially inhibited synthesis of rRNA's. Residual rRNA synthesized was processed normally. Total protein synthesis and inducibility of the enzyme maltase were relatively unaffected at concentrations of actinomycin D which severely inhibited rRNA synthesis.

Abstract Improving feed efficiency (FE) plays an important role in the economic and environmental sustainability of swine industry. Genetic selection based on low estimated breeding value for conversion ratio (EBV_FCR) can effectively improve FE. This study investigated growth performance, nutrient energy digestibility, activity hydrolyses, expression transporters tight junction proteins, fecal...

I. The influence of diet, particularly dietary carbohydrate, on the development of the intestinal disaccharidases of the chick was studied. 2. The maltase activity in the small intestine was similar in groups of 1;-d-old chicks that had been fed, from hatching, on diets containing either starch, glucose, maltose, sucrose, or a mixture of 50 yo glucose + 50 yo lactose, as the source of carbohydr...

Activities of twelve hydrolytic enzymes in the digestive tract of young rabbits before weaning (4 weeks old) and adult rabbits (3 months old) were measured. The principal digestive enzymes in both groups of rabbits appeared to be amylase (EC 3.2.1.1), maltase (EC 3.2.1.20), pectinase (EC 3.2.1.15) and proteinases. The stomach of young rabbits contained most of the lipolytic activity and 45.7% o...