Journalartikel

Jahr der Veröffentlichung: 1985

Seiten: 34-40

Zeitschrift: Zeitschrift für Tierzüchtung und Züchtungsbiologie = Journal of animal breeding and genetics

Bandnummer: 102

Heftnummer: 1

ISSN: 0044-3581

Verlag: Parey

Abstract: 
Every 6 or 12 mo. blood samples were taken for 1-3 times from bulls of the following AI stations: RPN-Hannover, RPN-Buetzfleth, Georgsheil, Osnabruek, Lohfelden, Naumburg, Grebenstein, Giessen and Stoeckels. The partial correlations with the criteria of dairy performance are small and generally not significant. Only in group 1 could a relationship between the milk fat content and the GLDH [glutamate dehydrogenase]-activity be found, and in group 2 there was a correlation between milk fat content and FTI [thyroxin index]. Partial correlations to milk protein content could not be evaluated because of the small number of animals. The estimated coefficients of heritability, ranging from h2 = 0.14 to h2 = 0.43 indicate the genetic basis of some of the biochemical parameters investigated. For GLDH-activity no genetic additive variation could be found. It is possible that the IRI [immunoreactive insulin]-concentration and GR [glutathion reductase]-activity have some significance for future breeding because of the genetic correlations (rg = + 0.26-IRI-concentration: milk yield; rg = 0.19-IRI-concentration:milk fat content; rg = 0.20-GR-activity; milk fat content).

Harvard-Zitierstil: FLACH, D., WASSMUTH, R. and DZAPO, V. (1985) METABOLITE LEVELS AS INDICATORS OF PERFORMANCE POTENTIAL OF CATTLE .2. THE SUITABILITY OF HORMONES AND ENZYMES AS AID CRITERIA IN BREEDING EVALUATION, ZEITSCHRIFT FUR TIERZUCHTUNG UND ZUCHTUNGSBIOLOGIE-JOURNAL OF ANIMAL BREEDING AND GENETICS, 102(1), pp. 34-40

APA-Zitierstil: FLACH, D., WASSMUTH, R., & DZAPO, V. (1985). METABOLITE LEVELS AS INDICATORS OF PERFORMANCE POTENTIAL OF CATTLE .2. THE SUITABILITY OF HORMONES AND ENZYMES AS AID CRITERIA IN BREEDING EVALUATION. ZEITSCHRIFT FUR TIERZUCHTUNG UND ZUCHTUNGSBIOLOGIE-JOURNAL OF ANIMAL BREEDING AND GENETICS. 102(1), 34-40.