conditions that limit energy consumption at a time when energy demands are high
Milk production peaks at _________, but energy intake doesn't peak until ___________.
3 weeks; 7 weeks
How much fat and protein/muscle can you expect a cow to lose in her first 7 weeks of lactation?
2# of fat and 1/2# of protein broken down daily
How much does does subclinical ketosis cost?
Subclinical ketosis causes milk to drop ________ daily.
Subclinical ketosis is a risk factor for... (3)
clinical ketosis, metritis, LDA
What causes ketosis in beef cows?
biggest energy demand is growing fetus in late gestation, esp with twins; cows fed corn stalks and protein lick tank--> not enough energy
What are the biggest energy demands?
lactation, nervous system, fetal growth, muscle
Alimentary ketosis occurs in cows on a ________ diet; the _________ of high-moisture silage can lead to cows of __________ developing ketosis.
high protein; butyric acid; all stages of lactation
What causes hepatic lipidosis?
lactation causes mobilization of body fat reserves that must be converted in the liver--> mobilization exceeds liver's ability to convert fat to glucose due to build up of acetylCoA--> shifts to production of ketones
What are clinical signs of ketosis? (5)
inappetence, dry, shiny stool, gradual drop in milk, +/- neurologic signs (abnormal licking, chewing, staring, aggression, hyperesthia)
What is a consistent neurologic feature of ketosis?
How do you diagnose ketosis?
ketone bodies in urine, blood, or milk
Most sensitive, least specific way to measure ketone bodies.
Least sensitive, most specific way to measure ketone bodies.