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Animal Reproduction PowerPoint Presentation

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Description : Check out this medical presentation on Male Reproductive System, which is titled "Animal Reproduction", to know about the Animal Reproduction including the Male Reproductive System and the Female Reproductive System.

Tags : Male Reproductive System, Animal Reproduction, Female Reproductive System

Published on : Jul 28, 2021 | Views : 1995 | Downloads : 0

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Slide 1-

Animal Reproduction Lesson 1 – Male Reproductive System Lesson 2 – Female Reproductive System
Slide 2-

Which one of the following management practices will make a producer the most money? Nutrition & Feeding Programs Facilities Set-up Disease and Illness Control Reproduction Answer: Reproduction
Slide 3-

Let’s Think About it…. Put on those Thinking Caps 30 Cow Herd 80% Calf Crop 24 Calves Sell Calves at 500 pounds for $2.50 per pound. $30,000 Income 30 Cow Herd 90% Calf Crop 27 Calves Sell Calves at 500 pounds for $2.50 per pound. $33,750 Income That's $3750 more!
Slide 4-

Why else do we study Animal Reproduction? Well which heifer do you want on your farm?
Slide 5-

What is another reason we study animal reproduction?
Slide 6-

The 3 main reasons we study Animal Reproduction: Increase income because we have more offspring Make genetic improvements Identify reproductive problems
Slide 7-

OK….I know it is important to study animal reproduction, but who is more important….the male or female? Male Physically mount the female for breeding Produce large amounts of sperm Contribute 50% of the offspring’s genetic makeup Able to breed multiple females in a short period of time. Female Physically stand for the male Produce 1 or more eggs for fertilization Contribute 50% of the offspring’s genetic makeup Provide a safe site for fertilization Nurture the egg as it grows into an embryo then fetus Give birth to the offspring Produce colostrum and milk for offspring Protect offspring from predators
Slide 8-

Lesson 1 – Male Reproduction What do you notice about the following animals?
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Reproductive System of the Bull Prostate Gland Cowper’s Gland Retractor Muscle Urethra Sigmoid Flexure Testicle Scrotum Epididymis Sheath Penis Vas Deferens Urinary Bladder Seminal Vesicles
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Reproductive System of the Boar Seminal Vesicles Prostate Gland Cowper’s Gland Retractor Muscle Testicle Epididymis Scrotum Vas Deferens Urinary Bladder Urethra Sigmoid Flexure Penis Sheath
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Reproductive System of the Ram Seminal Vesicles Prostate Gland Cowper’s Gland Retractor Muscle Sigmoid Flexure Vas Deferens Testicle Scrotum Epididymis Sheath Penis Urethra Urinary Bladder
Slide 12-

Reproductive System of the Stallion Seminal Vesicles Prostate Gland Cowper’s Gland Retractor Muscle Testicle Scrotum Epididymis Urinary Bladder Vas Deferens Urethra Sheath Penis
Slide 13-

Reproductive System of the Dog Prostate Retractor Muscle Urethra Epididymis Testicle Scrotum Urinary Bladder Vas Deferens Prepuce Penis
Slide 14-

Reproductive System of the Rabbit Prostate Seminal Vesicles Urinary Bladder Vas Deferens Scrotum Epididymis Testicle Prepuce Penis Urethra
Slide 15-

For the most part….they all have the same reproductive parts. Testicles – produce sperm and the hormone testosterone Scrotum – holds testicles, regulates temperature Sperm must be below body temperature Epididymis – Stores sperm until use Vas deferens – connection tube Urethra – carries sperm & urine to the penis
Slide 16-

Reproductive parts continued… Sperm now becomes semen Seminal Vesicles – fluid to protect the sperm Prostate Gland – milky fluid to nourish sperm Cowper’s Gland – fluid cleans urine out of penis Sigmoid Flexure – muscle extends penis out of body
Slide 17-

Reproductive parts continued… Retractor Muscle – pulls penis back into the body Penis – deposits semen into female and excretes urine Sheath/Prepuse – external skin which protects the penis
Slide 18-

Bull Reproductive Tract
Slide 19-

Structure of the Testicle Cryptorchid – no testicles Monorchid – one testicle
Slide 20-

Structure of the Penis What causes ejaculation? Bull – temperature Ram - ?? Boar – pressure Stallion – nerves
Slide 21-

Collecting Semen in Stallion & Bull http://dsc.discovery.com/tv-shows/dirty-jobs/videos/horse-breeding.htm http://www.youtube.com/watch?v=9ryKkm6oF4g http://www.youtube.com/watch?v=qgf6h588v-I
Slide 22-

ppt slide no 22 content not found
Slide 23-

How much semen is produced & useable during AI
Slide 24-

Review from last week- Bell work What did you learn? What was the most interesting thing? Review the male swine anatomy while you wait. (hint, hint)
Slide 25-

Male Reproductive Hormones GnRH – controls pituitary gland LH – produces testosterone FSH – 1 hormone needed to produce sperm *Testosterone – other hormone needed to produce sperm & cause body to change and develop libido
Slide 26-

Questions If you have 10 mares with a 80% foal rate, how many foals are born? Which one of the 3 reasons to study animal reproduction is the most important in your mind? Tell me why you picked that one. How does the scrotum react to different types of climate? What is the difference between the seminal vesicles, prostate gland, and cowper’s gland? What is the two primary functions of testosterone in the male?
Slide 27-

Lesson 2 – Female Reproduction What do you notice about the following animals?
Slide 28-

Reproductive System of the Cow - Side View Cervix Vagina Clitoris Urethra Urinary Bladder Uterine Horn Oviduct Infundibulum Ovary Uterus Vulva
Slide 29-

Reproductive System of the Sow - Side View Body of Uterus Cervix Vagina Vulva Clitoris Urethra Urinary Bladder Ovary Infundibulum Oviduct Uterine Horn
Slide 30-

Reproductive System of the Ewe Body of Uterus Cervix Vagina Vulva Clitoris Urethra Urinary Bladder Ovary Infundibulum Oviduct Uterine Horn
Slide 31-

Reproductive System of the Mare Body of Uterus Cervix Vagina Vulva Clitoris Urethra Urinary Bladder Ovary Infundibulum Oviduct Uterine Horn
Slide 32-

Reproductive System of the Bitch Body of Uterus Cervix Vagina Vulva Clitoris Urethra Urinary Bladder Ovary Infundibulum Oviduct Uterine Horn
Slide 33-

Reproductive System of the Doe Body of Uterus Cervix Vagina Vulva Urethra Urinary Bladder Ovaries Infundibulum Oviduct Uterine Horn
Slide 34-

For the most part they have the same reproductive parts…. Ovary – produces eggs & hormones Infundibulum – catches eggs after burst from ovary Oviduct (Fallopian Tube) – narrow passage for egg, site of fertilization Uterine Horn – For litter bearing animals to develop Uterus – development of fetus
Slide 35-

Female Reproductive Parts Continued…. Cervix – muscle which locks down uterus Vagina – site of copulation (semen deposited) in most animals Clitoris – stimulates reproductive tract causing waves during mating Vulva – external opening of vagina Urethra – carries urine
Slide 36-

Cow’s Reproductive Tract
Slide 37-

Semen Collection in Males Artificial Vagina Electroejaculation Massage accessory glands Hand pressure (boars)
Slide 38-

AI procedures in females Sheep -surgical or speculum Swine -corkscrew Horses - like cattle
Slide 39-

Updated:7/31/2021 External Genitalia of the Cow Anus Labia Clitoris Labia Vulva
Slide 40-

Swollen Vulva in Sow, Cow, & Bitch
Slide 41-

Reproductive System of the Sow - Top View Uterine Horn Uterine Body Oviduct Infundibulum Cervix Opening of Urethra Vulva Uterus Ovary Bladder Vagina Clitoris
Slide 42-

What is occurring in the ovary: Females do not produce more eggs as they age, the eggs they have will just develop and be releases during different times in their lifetime
Slide 43-

Fertilization & Conception
Slide 44-

Size of Uterus
Slide 45-

Hormone Cycle Hormone Cycle Begins Hypothalamus Pituitary Gland Ovaries Uterus 1. GnRH - Triggers FSH and LH production 2. FSH - Develops follicle 3. Estrogen - Starts heat and suppresses FSH production 4. LH - Ruptures follicle and develops corpus luteum 5. Progesterone - Blocks FSH and LH production 6. Prostagladin - Ends progesterone production
Slide 46-

Female Hormones GnRH – triggers LH and FSH hormones to get to work FSH – develops follicle (will become eggs) Estrogen – produced by follicle, starts heat period LH – Bursts follicle from ovary Progesterone – Blocks FSH & LH Prostaglandin – Causes GnRH to get to work
Slide 47-

Role Play Pituitary Gland GnRH – The General FSH – The Fish Ovary Follicle Estrogen Egg LH Corpus Luteum - Scar Progesterone – Police Prostagladin – Glad Restart Button
Slide 48-

Practice Put the following steps of the Hormone Cycle in the correct order: FSH develops the follicle Progesterone blocks FSH & LH Prostaglandin ends progesterone production GnRH starts FSH & LH production Estrogen starts heat LH ruptures egg from ovary
Slide 49-

Answers D A E F B C
Slide 50-

Questions: Do females produce new follicles (eggs) throughout their lifetime? Why is the cervix so important? Would we have higher or lower conception rates if there was no clitoris? Which stage do you think is the most important in the formation of the egg? Why? What is the role of estrogen in the female body?