Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is the typical length of the estrous cycle in bovine?
What is the typical length of the estrous cycle in bovine?
- 17 days
- 21 days (correct)
- 7 days
- 6-7 months
Which species has a zonary and endotheliochorial placenta?
Which species has a zonary and endotheliochorial placenta?
- Canine and bovine
- Feline and canine (correct)
- Goats and sheep
- Swine and equine
Which species is an induced ovulator and has a seasonally polyestrous estrous cycle?
Which species is an induced ovulator and has a seasonally polyestrous estrous cycle?
- Canine
- Feline (correct)
- Equine
- Bovine
What type of placenta do swine have?
What type of placenta do swine have?
Signup and view all the answers
How long does estrus last in goats?
How long does estrus last in goats?
Signup and view all the answers
Flashcards are hidden until you start studying
Study Notes
Reproductive Characteristics of Various Species
Canine (Dogs)
- Gestation length: 62-64 days
- Estrous cycle: Unseasonally monoestrous, cycles once every 6-7 months
- Estrus duration: 9 days
- Placentation type: Zonary and endotheliochorial
Feline (Cats)
- Gestation length: 65 days
- Estrous cycle: Seasonally polyestrous, induced ovulators
- Estrus duration: 6-7 days (range 1-10 days)
- Placentation type: Zonary and endotheliochorial
Swine (Pigs)
- Gestation length: 114 days
- Estrous cycle: Unseasonally polyestrous, cycles every 21 days
- Estrus duration: 2-3 days
- Notes: Guilt (young female pig) and sow (adult pig)
- Placentation type: Diffuse and epitheliochorial
Bovine (Cattle)
- Gestation length: 279 days (dairy), 292 days (beef)
- Estrous cycle: Unseasonally polyestrous, cycles every 21 days
- Placentation type: Cotyledonary and epitheliochorial
Equine (Horses)
- Gestation length: 335-342 days
- Estrous cycle: Seasonally polyestrous, estrus cycle lasts 7 days
- Placentation type: Diffuse and epitheliochorial
Goats
- Gestation length: 150 days
- Estrous cycle: Seasonally polyestrous, cycles every 21 days
- Estrus duration: 2-3 days
- Placentation type: Cotyledonary and epitheliochorial
Sheep
- Gestation length: 150 days
- Estrous cycle: Seasonally polyestrous, estrus cycle lasts 17 days
- Estrus duration: 1-2 days
- Placentation type: Cotyledonary and epitheliochorial
Chicken
- Gestation length: 21 days
- Note: No placenta!
Ferrets
- Gestation length: 41-42 days
- Estrous cycle: Seasonally polyestrous, induced ovulators
- Notes: Female ferret is called Jill (male is called Hob), pregnancy can be determined at 14 days by palpation or ultrasound
- Placentation type: not specified
Guinea Pigs
- Gestation length: 65-68 days
- No additional information provided
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
