Significance, utilization and application of B-vitamins in ruminants. 2. Niacin, pantothenic acid, biotin, folic acid and vitamin B-12

Citation
E. Kolb et al., Significance, utilization and application of B-vitamins in ruminants. 2. Niacin, pantothenic acid, biotin, folic acid and vitamin B-12, PRAKT TIER, 80(3), 1999, pp. 207
Citations number
42
Categorie Soggetti
Veterinary Medicine/Animal Health
Journal title
PRAKTISCHE TIERARZT
ISSN journal
0032681X → ACNP
Volume
80
Issue
3
Year of publication
1999
Database
ISI
SICI code
0032-681X(19990301)80:3<207:SUAAOB>2.0.ZU;2-0
Abstract
Under certain feeding conditions the amount of resorbed niacin is not optim al, so daily supplementation with 1 g nicotinic acid per head of growing ca ttle, 0,5 g per sheep and 6 g per lactating cow augments productivity. Nico tinic acid has an antilipolytic, antiketogenic and a gluconeogenesis stimul ating effect. Under usual feeding conditions the resorption of pantothenic acid is sufficient. The synthesis of biotin in the forestomachs is small. T he enteral synthetized biotin is resorbed only to a small degree. Supply wi th 20 mg biotin per cow and day augments the quality of claw horn. The supp ly with folic acid is under certain feeding conditions not optimal. There i s a high synthesis of vitamin B-12 in the forestomachs. Preparations of B-v itamins are especially applied in cases of maldigestion and of a longer int erruption of feed intake for the stimulation of cell regeneration and of th e activity of the immune system.