POUL 4060 Lecture Notes - Lecture 10: Calcification, Homeostasis, Femur

• School: University of Georgia
• Department: Poultry Science
• Course: POUL 4060
• Professor: Davis

Document Summary

3 ingredients: calcium, water, co2: deposition of carbonate, most of the carbonate comes from co2, decrease in blood ph urine ph, two hydrogens lower the ph (more acidic). Co2 and water which results in thinner egg shells: cessation of calcification 2 hrs before oviposition, signal to stop unclear. Leaves us with 2 hydrogens which make you acidic, so producing the shell lowers the ph of the bird (more acidic) and of the urine because you are generating hydrogen ions. Also need more bicarbonate (buffer) to neutralize the acidity so you don"t go into complete acidosis which is deadly. So we will inhibit shell formation due to feeding acid diet- can"t lower ph any further. This will result in a thin shell or may inhibit reproduction completely due to the fact we don"t have enough capability to generate shell due to not wanting excess hydrogen. Birds don"t have sweat glands, so the main way they get rid of excess heat.