[The "waiting period" for follow-up administration of bovine colostrum to newborn lambs].
Extent and duration of the permeability of the small intestine of newborn lambs for intact proteins from cow's colostrum was analyzed in five groups of animals. Cow's colostrum in quantities of 200 ml/kg birth weight, was offered in 3-hr intervals for 24 hrs, beginning either immediately after birth or after fasting, for 12 and 24 hrs respectively. In two groups each either 5% glucose solution or saline was offered to the fasting animals. The following results were obtained: 1. All lambs fed immediately after birth drank eagerly. The intake in all fasting groups dropped between 12 and 24 hrs of the feeding period. 2. While the duration of the permeation of the small intestine for intact proteins remained unaffected by the various regimens, fasting with or without supplementation decreased the maxima. 3. The decrease in protein permeation was class-depending as demonstrated by the lower levels of bovine IgM in the sera of fasting lambs. 4. The permeability of the small intestine for proteins was substantially reduced by 5% glucose. The difference between fasting lambs or lambs with saline substitution was minimal. 5. All lambs fed immediately after birth survived. The losses in the other groups amounted to 29% after 12 hrs of starving, 33% after 24 hrs of starving, 30% after starving with glucose supplementation and 50% after saline solution. 6. The surviving animals showed no differences in weight gain.
Klobasa
F
F
Institut für Tierzucht und Tierverhalten (FAL), Mariensee.
Greimann
H
H
Kallweit
E
E
D000818:Animals; D000831:Animals, Newborn / Q000276:immunology*; D002417:Cattle; D003126:Colostrum / Q000378:metabolism; D007116:Immunization, Passive / Q000662:veterinary*; D007421:Intestine, Small / Q000378:metabolism; D010539:Permeability; D012756:Sheep / Q000276:immunology*; D013997:Time Factors
Untersuchungen über "Wartezeiten" mit anschliessender Verabreichung von Rinderkolostralmilch bei neugeborenen Lämmern.