Abstract. In a long term experiment laboratory mice were selected for high (line DU-hTP) or low (line DU-ITP) paternal treadmill Performance to differentiate the endurance fitness. In generation 54 six enzymes and seven Substrates were investigated in the blood plasma of males and females in DU-hTP (n = 104) and DU-ITP (n = 141). Compared with line DU-ITP in line DU-hTP significantly higher enzyme activities, increased glucose concentration and lower level of triglycerides were found. The components of total cholesterol were divergent between the two lines and positively effected in DU-hTP for higher HDL-cholesterol. Animals with high endurance fitness showed a higher gain in the HDL-cholesterol concentration with increased total cholesterol level in the blood than gain of LDL + VLDL-cholesterol concentration.
Verlauf von biochemischen Kennwerten im Blut von Schweinen mit unterschiedlicher Fettansatzleistung
SummaryTitle of the paper: Level of the metabolic substances in blood in relation to the development of pigs with different capacity for lipid deposition 28 German Saddle Back pigs (DS) and 30 German Landrace pigs (DL) were used to determine the concentrations of 16 Substrates and enzymes in the blood plasma during the growing-finishing period. Blood samples were taken from veno cava cranialis all two weeks 24 hours after Myostress injection. For the characterization of breed differences the results were represented as means in relation to the whole trial period and to live weight classes ofthe pigs. The concentrations of protein, urea, Creatinine, LDL+VLDL cholesterol, GGTP and AP were significantly different between DS and DL both for whole trial period and for most of live weight classes. For urea acid, lactate, triglycerides, HDL cholesterol, ALAT and LDH breed differences were mainly small. The breed differences for the concentrations of glucose, total cholesterol, ASAT and CK were statistically significant in some live weight classes, only.
Abstract. Title of the paper: Body composition in newbom piglets of the breeds German Landrace and German Saddleback (short communication) Newbom piglets from 15 litters of German Landrace sows (DL) and 19 litters of German Saddleback sows (DS) were used to determine the body weight, body composition, and characteristics of lipid metabolism in the blood. At the date of birth no differences in body weight and body composition of the piglets were found between the two breeds. The piglets of the DS-sows showed in comparison to the piglets of the DL-sows a significant higher content in high density lipoproteins (HDL)-cholesterol in the blood plasma.
Abstract. A biochemical characterisation of blood was done in laboratory mouse lines originating from a heterogeneous outbred strain Fzt:DU which were selected for high body weight at 6 weeks of age (DU-6), for high total protein amount in the carcass (DU-6P) and for an index combining body weight and treadmill Performance (DU-6+TP) over 54 generations, respectively. The level of the following enzymes and Substrates were compared to the unselected control group (Fzt:DU): alanine aminotransferase (ALAT), aspartate aminotransferase (ASAT), lactate dehydrogenase (LDH), creatine kinase (CK), y-glutamyl-transpeptidase (GGTP), alkaline Phosphatase (AP), total cholesterol with its components LDL+VLDL- and HDL-cholesterol, triglyceride (Trig.), Creatinine (Crea.), lactate (Lac.) and glucose (Gluc). Concentration of some metabolic substances differed significantly in relation to the specific selection character. It is concluded, that selection indirectly diversified physiological State in the tested long-term selection lines in mice.
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