Unit Industry Sector
Agriculture & Natural Resources

Unit Originally Created By: Karen Dalton-Wemp

Animal Reproduction and the Function of Reproductive Organs

Part of Course: Animal Science Model

Unit Overview / Details

This unit contains lessons on reproductive topics such as conception, gestation and fetal development, partruition, artificial insemination and embryo transfer, and production breeding systems.

Instructional Hours

Classroom
15 Hours

Content / Concepts

  • Animal conception including estrus cycles, ovulation, and insemination
  • Gestation process and basic fetal development
  • Parturition process including the identification of potential problems and their solutions
  • Role of artificial insemination and embryo transfer in animal agriculture
  • Commonly used animal production breeding systems and the reasons for their use

CTE Standards

Lessons in this Unit

  • This lesson is meant to be taught within a reproduction unit as part of parturition, normal and abnormal. Although calving problems are the focus here, other species could be substituted. I saw this as a way to teach usable skills while understanding every calf lost costs a lot of money. The students will follow a power point and record pertinent information to correct dystocia, identify tools and how to attach them correctly. Students also need to know the signs of when to call a vet. Students will then use notes and a veterinary website to answer questions.

  • In this lesson, I teach my vet science students about the female reproductive tract organs and hormones. My students are responsible for being able to identify the various organs, functions, and tell me where and why the hormones are secreted.   I give my students hand outs with the reproductive organs that we label together in class, they take notes from a powerpoint on the functions and hormones, and at the conclusion of the lesson I also have the, research different technologies in reproductive technologies for breeding.  When available, I bring in female reproductive tracts for dissection.  At the conclusion of the reproductive unit, my students are given a comprehensive unit test on the Reproductive System.

    Hook
    5 Minutes
    Lecture
    25 Minutes
    Fill In The Blank Repro. Tract Sheet
    15 Minutes
    Technology Research
    30 Minutes
    Dissection
    20 Minutes
    Newscaster Interview
    3 Minutes
  • This lesson takes students through the delivery process of a calf and the potential problems along the way. During this lesson students are given a "mission" to determine the gestation lengths of various livestock species. After they complete the mission I share with them a veterinarian scenario of a calf delivery, we then discuss the stages of natural delivery including hormonal changes that take place, and the three stages of calving. The lesson then moves into several common delivery problems such as a large calf, hip-lock, backwards calf, twisted uterus. We then progress into care of a newborn calf, and students have the opportunity to demonstrate the correct placement of obstetrical chains on a calf.

    1 class period
    60 Minutes
  • In this lesson, I teach my vet science students about the male reproductive tract organs and hormones. My students are responsible for being able to identify the various organs, functions, and tell me where and why the hormones are secreted.   I give my students hand outs with the reproductive organs that we label together in class, they take notes from a powerpoint on the functions and hormones, and at the conclusion of the lesson I have the students evaluate a semen sample that I order from a boar semen supply company.  At the conclusion of the reproductive unit, my students are given a comprehensive unit test on the Reproductive System.

    Hook
    5 Minutes
    Lecture
    25 Minutes
    Name That Organ
    15 Minutes
    Go Get It
    10 Minutes
    Semen Evaluation
    15 Minutes
  • Class begins by asking student how fertilization takes place (usually not many are able to answer this question) Students are divided into groups of 3 and given a fertilization kit. In this kit is a gum ball, 1 skittle, 1 gummy worm, 1 piece of licorice, and 1 doughnut. Each item represents a part of the fertilization process. The teacher circulates the room as they explain how fertilization occurs shows students how to utilize their kit to demonstrate this process. Information is presented on the fertilization process and students take notes, followed by a brief discussion of gestation periods (review from a previous lesson). As a review and students create a graphic organizer from their notes that contains details about the fertilization process. Additionally there is a short assessment piece for students to complete.

    1 class period
    50 Minutes