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Colorado Agriscience Curriculum PowerPoint Presentation
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Colorado Agriscience Curriculum

Colorado Agriscience Curriculum

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Colorado Agriscience Curriculum

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    1. Colorado Agriscience Curriculum Animal Science Unit 4 Reproduction and Genetics Lesson 1 Female Anatomy

    2. Reproductive Anatomy of a Female Cow and Sow

    3. Diagram 1

    4. Female Organs of Reproduction and Their Functions Uterine horns The place were the embryo develops in the sow (female pig). The ovaries Ovaries produce ova (eggs, oocytes) and the female sex hormones, estrogen and progesterone. First, a fluid-filled follicle develops on the ovary and matures. Once mature, the follicle ruptures, freeing the oocyte. Once the oocyte escapes, the follicle changes into a corpus luteum or yellow body The yellow body produces progesterone. Progesterone is the hormone that maintains pregnancy. Oviducts The place where sperm and egg meet and fertilization takes place. Uterus The place where the embryo attaches and develops. Cervix An organ that has a lot of connective tissue. It is the passage way between the uterus and the vagina. Vagina Serves as the female organ of copulation and the birth canal at birth. Vulva Exterior part that leads to the vagina.

    5. Reproductive Anatomy of a Hen

    6. Reproduction in Poultry Females The eggs are laid outside the female. The hen has only a left side functioning ovary and oviduct. There are 3,600 4,000 miniature ova in a hen Ovulation is the release of a mature yolk from the ovary The time from ovulation to laying is about 24 hours. If the egg was fertilized by a rooster or through artificial insemination, the fertilized egg can be hatched after 21 days of incubation or by the hen staying on her nest to keep the egg warm.