ANSC 1011 : Test 2
Document Summary
Jejunum: longest part where some digestion occurs but the main function is absorption or nutrients. Digestion in the horse: coprogphagy, eating of feces: only if protein deficient diet, must have better quality feed (protein, horse is less efficient (2/3 for fiber) than ruminants in feed utilization. Yellow body : produces progesterone, maintains pregnancy, corpus albicans, degenerated cl, white, scar-like structure, follicular development, oviduct. Infundibulum: captures and guides newly ovulated oocyte, ampulla, occupies half of the length of the oviduct, site of fertilization. Isthmus: connected to uterus (uterotubal junction, utj) In the mare, the ampullary-isthmus junction serves as control point that allows only fertilized oocytes to pass into the isthmus: utj regulates movement of embryo in the uterus. With high estrogen the utj blocks embryo movement: generally takes 3-5 days after fertilization for the ova to pass to the uterus. In usa (2009), there was a sophisticated . 6 billion pet food industry. Old age directly related to size or breed.
