ANSC 4009 : Nutrition Exam 2
Document Summary
Add phytase to prevent excessive phosphorous secretion (epa) Mag deficiency can cause grass tetany, tx is to add mg to diet or fertilize pasture with mg. Goiter-enlargement of thyroid gland, decrease in thyroxine, thyroid secretes more thyroxine. High demand for glucose and not enough available. Normally the acetyl co-a would enter the tca (tricarboxylic acid cycle), but without glucose, oxaloacetate is lacking and acetyl co-a cannot enter the cycle. Ketones (acetoacetic acid and -hydroxy butyrate) build up in the blood. Symptoms: grinding of teeth, frequent urination, trembling when exercised, decrease milk production, rapid weight loss, acetone smell on breath. Lack of lactase on the brush border: lactose is not digested to glucose and galactose. Lactose become a substrate for the microflora: producing methane, co2 and h2. Increase water in the intestine: diarrhea and cramps. Glucose is used to form glycogen (glycogenesis) Converted to fatty acids and is stored as fat: only in non-ruminants as ruminants lack the enzyme citrate lyase.
