TexasBred":240jmmqu said:bball":240jmmqu said:CaO is necessary when feeding DDGs to balance the Ca to P ratio (since DDG has concentrated P levels) if not using CaO in ration, then you run the risk of pesky problems like urinary/renal calculi, increase risk for milk fever after calving, etc. Would like to see how this study attributes higher digestibility to CaO specifically. What's the science behind it?
It doesn't happen. Pelletizing may increas the rate of digestion since everything has a very small particle size but it doesn't nothing to increase digestion. And the risk of milk fever in beef cattle is very slim even when feeding DDG or CGF. Milk fever is actually caused by an overly high concentration of calcium in the blood prepartum, then the sudden release of all that calcium from the blood into milk production at the time of birth resulting in hypocalcaemia.
:tiphat: Thanks for an excellent explanation TB. Is that the only pathophysiology of milk fever? Hyper to hypo? O4 can a cow already be hypocalcemic, calve, let milk down and thereby have even lower calcium level (hypocalcemia)?.