ANFS100 Lecture Notes - Lecture 10: Mammary Gland, Colostrum, Antibody

• School: University of Delaware
• Department: Animal and Food Sciences
• Course: ANFS100
• Professor: Griffiths Lesa

Document Summary

After studying the chapter, you should be able to: Explain the princess by which bst increases milk production. Identify the major components of the mammary gland. Protein level will decrease and it will look more like milk. If they get broken down, they will not be usable. Without it they will most likely die from infection. Varies most in the levels of fat. Fast growing animals have a high level of fat in the milk. Prenatal period - before animal is born. Basic structures of the mammary gland develop. Puberty and with each subsequent estrous cycle. The female sex hormones progesterone and estradiol stimulate growth in the mammary gland. Blood levels of progesterone and estrogen decrease abruptly and lactogenesis occurs. Stage i: immunoglobulin uptake occurs and colostrum is formed, much of this is prior to parturition. Stage ii: copious milk secretion begins, over the next few days colostrum production is shut down and normal milk will be produced.