title: [The effect of DL-methionine, N-hydroxymethyl-DL-methionine calcium salt (Mepron) and DL-methionine hydroxy analog calcium salt (MHA) on the N-deposits of calves].
abstract: Digestibility and N balance experiments with calves showed that the methionine requirement of the host animal is covered by microbial protein synthesis even in the already ruminant animal. A supplement of the ration with DL methionine is only effective when it is provided in milk replacer. The MHA substitution of the ration has only little influence on N retention, independent of its supply in milk replacer or concentrated feed. MEPRON proved to be the most effective methionine derivative. As supplement both with the fluid feed and with the concentrated feed this compound shows exclusively positive results even in already ruminant calves with regard to live weight gain, N retention and the content of free methionine in the blood serum of the test animals.
authors.affiliation: Agraruniversität Keszthely, Fakultät Mosonmagyarovar, VR Ungarn.
authors.forename: J
authors.initials: J
authors.lastname: Schmidt
authors.forename: N
authors.initials: N
authors.lastname: Thanh Doungh
mesh_terms: D000821:Animal Feed; D000818:Animals; D002417:Cattle / Q000254:growth & development / Q000378:metabolism*; D005527:Food, Fortified; D008297:Male; D008715:Methionine / Q000031:analogs & derivatives / Q000378:metabolism*; D015394:Molecular Structure; D009584:Nitrogen / Q000378:metabolism*; D015430:Weight Gain
chemical_list: D008715:Methionine; D009584:Nitrogen
vernacular_title: Der Einfluss von DL-Methionin, N-Hydroxymethyl-DL-Methionin-Calciumsalz (Mepron) und DL-Methionin-Hydroxyanalog-Calciumsalz (MHA) auf den N-Ansatz von Kälbern.