Question

In: Anatomy and Physiology

Reproductive system of a pig. How do they reproduce?

Reproductive system of a pig. How do they reproduce?

Solutions

Expert Solution

Answer :

A female pig, called a sow, can become pregnant once it is 8 months old, and usually remain fertile until they are 18 months old. Male pigs, or boars, become sexually active once they are 8 to 10 months old. During their productive months sows enter into a phase called estrus, or "heat," every 21 days when they are not pregnant, sending signals to the boar that they are ready and able to mate. Once the sow gets pregnant, the gestation period lasts 115 days.

Methods of Conception

Pig farmers generally choose to have their sows artificially inseminated. This allows farmers to breed multiple sows in the time it would take for one boar and sow to mate naturally. A normal breeding session will usually take 15 minutes, with the boar being able to mate with up to 3 sows a day. Through artificial insemination, however, a boar's semen can be used to inseminate up to 50 sows. During artificial insemination, a boar will mate with a fake sow that the farmer creates. The farmer will place the sow's genital in a jar or bottle in order to collect the semen.

Location:

Because piglets have a harder time surviving in extreme heat or cold, most modern-day pig farmers have allowed their pigs to farrow--give birth--indoors. The birthing quarters typically contain a crate that can be monitored frequently, ensuring that the piglets are being cared for properly by their mother. Most pigs who farrow indoors produce approximately 10 piglets per liter. They can reproduce twice a year.


Related Solutions

1. What are the characteristics of a virus and how do they reproduce? Be sure to...
1. What are the characteristics of a virus and how do they reproduce? Be sure to explain in detail. 2. How do antiviral medications affect viruses? Be sure to explain in detail. 3. List the different ways that viruses may be transmitted from an infected person? 4. List ways to minimize transmission of viruses to another individual? 5. How does host resistance and microbial virulence affect the following: A patient's ability to fight the infection The ability of the treatment...
How is the Reproductive System able to assist in maintaining Homeostasis.
How is the Reproductive System able to assist in maintaining Homeostasis.
How do sponges reproduce? How do sponges feed? What is the basic body plan of the...
How do sponges reproduce? How do sponges feed? What is the basic body plan of the cnidarians? What are the two stages of the Cnidarian life cycle? Which stage of Cnidarian is sexual and which is asexual?
What is the reproductive system?
What is the reproductive system? Give details on the reproductive system.
Describe the reproductive system.
Describe the reproductive system.
What are retroviruses? How do they reproduce and what is the role of the enzyme reverse...
What are retroviruses? How do they reproduce and what is the role of the enzyme reverse transcriptase?
Describe the functions of the male reproductive system and the details of how they are accomplished?
Describe the functions of the male reproductive system and the details of how they are accomplished?
Do algae reproduce sexually or asexually?
Do algae reproduce sexually or asexually?
summary explaining how chemical signals from the endocrine system drive development of the reproductive system in...
summary explaining how chemical signals from the endocrine system drive development of the reproductive system in both sexes. Your summary should include a comparison of this process among males and females. Your summary should be well organized, and should make sense to somebody who doesn’t have the guiding questions in front of them. In your summary you should address the following questions: What hormones are involved in this process? What cells do these hormones interact with? What effect do the...
Briefly explain the male reproductive system
Male reproductive system The main reproductive organ in males is a pair of testes.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT