[The effect of increasing additions of low-esterified pectins in the diet on the metabolism of laying hens--tested by pair-feeding studies].
A series of trials was carried out with 32 laying hens in order to study metabolism after addition of low methylated citrus pectin in levels of 2% and 6%. The following results should be pointed out: Addition of pectic substances reduced feed-intake and stimulated water intake. The limited tolerance for pectins resulted in an increasing water-content of the excreta with a rise of the concentration of volatile fatty acids and an alteration of their spectrum. In consequence of supplementation with pectins a considerable loss of body weight could be established, which exceeded the expected effects of reduced energy-intake. The egg production was impaired by addition of pectin. In the serum the level of total lipids, cholesterol, triglycerides, phospholipids, furthermore of bile acids diminished. These effects exceeded remarkably those induced solely by reduced feed-intake. The level of volatile fatty acids in the serum was elevated as result of the supplementation with pectic substances.
Drochner
W
W
Institut für Tierernährung Tierärztlichen Hochschule Hannover.
Cerci
I H
IH
Stadermann
B
B
Lüders
H
H
D000818:Animals; D001647:Bile Acids and Salts / Q000097:blood; D002645:Chickens / Q000378:metabolism*; D002784:Cholesterol / Q000097:blood; D004326:Drinking / Q000187:drug effects; D004435:Eating / Q000187:drug effects; D002149:Energy Intake; D005232:Fatty Acids, Volatile / Q000097:blood; D005260:Female; D008055:Lipids / Q000097:blood; D010058:Oviposition / Q000187:drug effects; D010368:Pectins / Q000008:administration & dosage* / Q000494:pharmacology; D010743:Phospholipids / Q000097:blood; D014280:Triglycerides / Q000097:blood; D015431:Weight Loss / Q000187:drug effects
D001647:Bile Acids and Salts; D005232:Fatty Acids, Volatile; D008055:Lipids; D010743:Phospholipids; D014280:Triglycerides; D010368:Pectins; D002784:Cholesterol
Einfluss steigender Zulagen niedrigveresterten Pektins in der Diät auf den Stoffwechsel von Legehennen--geprüft mit Hilfe yon "Pair-Feeding-Versuchen".