The objective of a 2 × 2 factorial study with laying hens was to evaluate the effect of dietary energy and DL-methionine (Met) supplementation in a high protein but sulphur amino acid deficient organic diet for laying hens on egg production, egg quality, and N retention and N excretion in manure. The model trial was conducted with 72 Bovans Brown hens from 24 to 53 weeks of age, allocated to 4 ...

It was found that K99 pili from enterotoxigenic Escherichia coli (of bovine origin) could be extracted by treatment with 3M-KSCN solution. The K99 pili were purified by preparative isoelectric focusing to apparent homogeneity as judged by the presence of a single band on sodium dodecyl sulphate/polyacrylamide-gel electrophoresis; the molecular weight of this component was calculated to be 12 60...

Abstract The present study aims at the identification and investigation of fatty acid and amino acid profiles in male and female Liza aurata in the southern part of the Caspian Sea, in reproductive (autumn) and non-reproductive (spring) seasons. The results showed difference between the total fatty acids levels in the sexes. Analyses of fatty acids indicated a higher percentage of C16:0, C...

the effect of a selected autochthonous starter culture made up by streptococcus thermophilus, lactobacillus delbrueckii subsp. lactis and lactobacillus helveticus on the microbiological and physicochemical properties of pecorino romano cheese during ripening was investigated. the suitability of the experimental starter culture was tested at industrial scales in cheese-making trials of pecor...

yglutamyl amino acids and for glutathione. Transport of y-glutamylmethionine is associated with markedly increased renal 5-oxoproline formation, indicating that transported dipeptide serves as a substrate of intracellular yglutamylcyclotransferase (R. J. Bridges & A. Meister, unpublished work). Previous investigations showed that renal 5-oxoproline levels are significantly elevated after admini...