title: [Parameters of nitrogen metabolism for male broilers of Tetra 82 descent].
abstract: In several growth and N-balance experiments with male broilers of the genotype Tetra 82 the course of live weight and parameters of N-metabolism were investigated. Semi-synthetic feed mixtures of different protein concentration but equal protein quality (protein mixture: 70% soybean meal and 30% fish meal) were used in the trials. Data from N-balance investigations were reckoned up in the N-turnover model from Gebhardt (1963). The course of maximum (N-balance plus endogenous N-loss) capacity in dependence on live weight was regressive calculated. Based on this regression a possibility of calculation of efficiency depended protein and amino acid requirement for the whole fattening period in dependence on live weight, protein intake and protein quality (A.b) was illustrated.
authors.affiliation: Sektion Tierproduktion und Veterinärmedizin, Karl-Marx-Universität Leipzig.
authors.forename: A
authors.initials: A
authors.lastname: Müller
authors.forename: T
authors.initials: T
authors.lastname: Pahle
authors.forename: G
authors.initials: G
authors.lastname: Gebhardt
mesh_terms: D000367:Age Factors; D000596:Amino Acids / Q000378:metabolism; D000821:Animal Feed / Q000032:analysis; D000818:Animals; D002645:Chickens / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D004044:Dietary Proteins / Q000378:metabolism*; D005838:Genotype; D008297:Male; D008433:Mathematics; D009584:Nitrogen / Q000378:metabolism*; D012016:Reference Values; D012044:Regression Analysis; D015430:Weight Gain
chemical_list: D000596:Amino Acids; D004044:Dietary Proteins; D009584:Nitrogen
vernacular_title: Parameter des N-Umsatzes männlicher Broiler der Herkunft Tetra 82.