[The use of mixed feed with reduced content of vitamin A, E and nicotinic acid in the fattening of cairinas].
In three fattening experiments with 1344 male cairinas (Cairina moschata domestica L.) from hatching to the 77th day vitamin A supplement was reduced to 2500 IU/kg feed from hatching to the 21st day and to 1250 IU/kg feed from the 22nd to the 77th day. There was no supplementation of the feed with vitamin E or nicotinic acid. The reduction and elimination of the vitamin supplements on average did not have significant effects on fattening performance, feed intake, body weight, feed conversion and losses of animals in the starter and fattening periods. In the fattening period there was a tendency towards a higher intake and expenditure of feed in two experiments. Presumably the supplementation of 1250 IU/kg mixed feed is not always sufficient for an optimal fattening performance. In three production experiments with 33,850 cairinas no disadvantageous influence on fattening performance could be ascertained after a supplementation of 4,000 IU in the starter feed and 2,000 IU vitamin A in the fattening feed.
Richter
G
G
Sektion Tierproduktion und Veterinärmedizin' der Karl-Marx-Universität Leipzig, Wissenschaftsbereich Tierernährungschemie.
Lüdke
C
C
Klinkhardt
K F
KF
D000821:Animal Feed; D000818:Animals; D001835:Body Weight; D004372:Ducks / Q000254:growth & development*; D004435:Eating; D008297:Male; D009539:Nicotinic Acids / Q000008:administration & dosage*; D014801:Vitamin A / Q000008:administration & dosage*; D014810:Vitamin E / Q000008:administration & dosage*
D009539:Nicotinic Acids; D014801:Vitamin A; D014810:Vitamin E
Einsatz von Mischfutter mit reduziertem Gehalt an Vitamin A, E und Nikotinsäure in der Cairinamast.