Open Access. Powered by Scholars. Published by Universities.®
- Publication Type
Articles 1 - 2 of 2
Full-Text Articles in Life Sciences
Effect Of Direct-Fed Microbials And Enzyme Supplementation In Prepartum Holstein Cows On Colostrum And Calf Immunity, Erin M. Shangraw
Effect Of Direct-Fed Microbials And Enzyme Supplementation In Prepartum Holstein Cows On Colostrum And Calf Immunity, Erin M. Shangraw
Honors Theses and Capstones
In cows, colostrum is composed of several antibodies and nutrients to provide immunity and energy to the calf. Feeding calves high quality colostrum has been shown to improve calf health, leading to reduced mortality in calves and greater milk production in cows. The addition of direct-fed microbials (DFM) to cow diets has been theorized to improve feed efficiency and milk production, with studies showing mixed results. However, few experiments have studied the effect of feeding DFM on colostrum quality. In this experiment two treatments were given, 1) DFM and 2) DFM and enzymes (DFME). Colostrum was …
Estimating Plasma Volume In Neonatal Holstein Calves Fed One Or Two Feedings Of A Lacteal-Based Colostrum Replacer Using Evans Blue Dye And Hematocrit Values At Various Time Points., Peter S. Erickson, Rosemarie G. Cabral Ph.D., Colleen E. Chapman Ms, E. J. Kent
Estimating Plasma Volume In Neonatal Holstein Calves Fed One Or Two Feedings Of A Lacteal-Based Colostrum Replacer Using Evans Blue Dye And Hematocrit Values At Various Time Points., Peter S. Erickson, Rosemarie G. Cabral Ph.D., Colleen E. Chapman Ms, E. J. Kent
Biological Sciences
Twenty-eight Holstein calves were blocked by birth date and randomly assigned to one of two treatments to investigate the effect of colostrum replacer (CR) feeding regimen on plasma volume (PV). Treatments were: 1) one feeding of CR (C1; 3L of reconstituted CR 675 g of powder providing 184.5 g of IgG at birth) or 2) two feedings of CR (C2; 2L of reconstituted CR at birth and 1 L of reconstituted CR at six h). By 6 h of age, all calves had received 3L of CR providing 184.5 g …