Die Wirkung variierender Zeit-Druck-Kombinationen bei der sauren Hydrolyse von Geflügelexkrementen auf die Aminosäurenausbeute nach säulenchromatographischer Trennung
In continuation of our studies on the use of pig manure in ruminant feeding, the present paper is concerned with the investigation of the effects of solids from semi-liquid pig manure as ration components on the crude nutrient and amino-acid contents of the longissimus dorsi muscles of bulls, heifers and calves from experimental and control groups each including 6 animals. There was no difference in the crude protein, pure protein and crude ash contents between the control and the experimental groups. On the contrary, the data on dry matter and crude fat in the longissimus dorsi muscle were significantly lower in the experimental animals than in the control animals. This difference is explained by the fact that the energy content of the experimental ration (containing solids from semi-liquid pig manure) is lower than that of the standard ration. The results obtained from the analysis for 17 amino acids show that the change in amino-acid content of the muscle protein is not determined by the use of solids from semi-liquid pig manure.
In continuation of our studies on the use of pig manure in ruminant feeding, the present paper is concerned with the investigation of the effects of solids from semi-liquid pig manure as ration components on the crude nutrient and amino-acid contents of the longissimus dorsi muscles of bulls, heifers and calves from experimental and control groups each including 6 animals. There was no difference in the crude protein, pure protein and crude ash contents between the control and the experimental groups. On the contrary, the data on dry matter and crude fat in the longissimus dorsi muscle were significantly lower in the experimental animals than in the control animals. This difference is explained by the fact that the energy content of the experimental ration (containing solids from semi-liquid pig manure) is lower than that of the standard ration. The results obtained from the analysis for 17 amino acids show that the change in amino-acid content of the muscle protein is not determined by the use of solids from semi-liquid pig manure.
By application with 2-aminoethanol (2-AE) and choline chloride (CC) in pot experiments the effect of drought stress on barley plants was diminished. In treated plants an increase of the grain yield by 14% (2-AE) and 40% (CC) and a decrease of the stress metabolites glycine betaine and trigonelline was observed. Additionally, treated barley plants showed higher yields of essential amino acids as well. The contents of proline (stress indicator) and arginine (precursor of the stress metabolite putrescine) of treated plants were by 12% and 22% respectively, lower than in untreated plants.
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