ANSC 3080 Lecture Notes - Lecture 9: Prill, B Vitamins, Negative Energy

• School: University of Guelph
• Department: Animal Science
• Course: ANSC 3080
• Professor: Julie Kim

Document Summary

Immunoglobulins: rich in proteins and digestible energy, fat and lactose, vit a, d, e, don"t want protein immunoglobins to be broken down (absorbed intact, trypsin inhibitors, protein fractions besides igg, help igg absorption. Timing of colostrum: affects efficiency of absorption, via endocytosis, allows non digestible proteins to be absorbed, absorption effectively stops after 24 hours since the git matures and higher molecular weight proteins can not be absorbed intact. Alternatives sources: frozen or fermented colostrum, dried supplements, why need these, orphan calf, dam milk has fever or can not get up, poor colostrum production, weak calf, poor udder conformation. Effect of body condition score on colostrum: better scores = faster time for calf to stand, better scores = more immunoglobulins made (igg and total) Feedi(cid:374)g the new(cid:271)or(cid:374) calf: newborn beef calf relies on dam"s milk, newborn dairy calf relies on milk or milk replacer, fed whole milk but switches to milk replacer, cheaper.