CATDOLL : Effective methods and techniques for accurately determining sow pregnancy

In the pig farming industry, pregnancy detection of sows is an important part of ensuring reproductive efficiency and improving economic benefits. Pregnancy detection can not only help farmers better manage sows, but also effectively plan the use of pig houses and feed delivery. This article will explore in depth the detection methods and related techniques of sow pregnancy to help farmers improve their reproductive management level.

1. Importance of pregnancy testing

The pregnancy status of sows is directly related to the economic benefits of the farm. Through timely and accurate pregnancy detection, farmers can:

• Rationally arrange the feeding and management of sows to reduce unnecessary economic investment.
• Monitor sows’ farrowing in a timely manner to ensure the survival rate of piglets.
• Plan subsequent breeding and optimize the breeding cycle.

2. Methods for detecting pregnancy in sows

At present, there are many methods for determining sow pregnancy. The following are some commonly used methods:

2.1. Visual observation method

About 21 days after the sow is mated, the breeder can make a preliminary judgment on whether the sow is pregnant by observing its behavior and physical changes. Usually, the following points can be noted:

• Changes in sow appetite: Pregnant sows usually have an increased appetite.
• Mammary gland development: After pregnancy, the sow's mammary glands will become more obvious and the nipples may become engorged.
• Behavioral changes: Sows may appear calm and less agitated.

2.2. Biochemical detection method

Biochemical testing refers to judging the pregnancy status by detecting specific physiological indicators in the sow. Commonly used biochemical tests include:

• Hormone testing : such as the measurement of progesterone levels. In the early stages of pregnancy, the secretion of progesterone will increase significantly.
• Pregnancy-related protein testing : such as pregnancy-specific protein (P4), the change in its concentration can be used as a basis for determining whether one is pregnant or not.

2.3. Ultrasound examination

Ultrasound examination is a non-invasive and highly effective detection method. Ultrasound can be used to clearly observe the sow's uterus and confirm the presence of the fetus. This method is usually performed 28 days after mating. The specific method is as follows:

• Choose the right equipment: Use an ultrasonic device that is compact and portable.
• Observe the state of the uterus: Ultrasound examination can be used to observe the gestational sac and confirm the pregnancy.

2.4. Palpation

The palpation method requires professional technicians to perform a tactile examination on the lower abdomen of the sow to determine whether there is an embryo in the uterus. This method requires a high level of technical skills and is often used in large farms.

3. Precautions for pregnancy testing

When conducting sow pregnancy testing, the following aspects need to be paid attention to:

• Choose the appropriate time for testing: The ideal time for testing is between 21 and 35 days after breeding.
• Make sure the testing environment is quiet so the sow is in a relaxed state.
• Record all test results for subsequent management and analysis.

4. Tips to improve the accuracy of pregnancy tests

To improve the accuracy of sow pregnancy detection, farmers can take the following measures:

• Provide regular training to staff to enhance their professional skills.
• Maintain good feeding management to ensure the health of sows.
• Arrange breeding time reasonably to avoid interference from non-optimal breeding cycles.

5. Conclusion

Pregnancy detection of sows is an indispensable and important task in the pig farming industry. By adopting appropriate detection methods, the pregnancy status of sows can be effectively determined, providing strong guarantees for subsequent management and breeding. It is hoped that through the introduction of this article, farmers can master more effective pregnancy detection techniques and improve the management level of farms.

Thank you for reading this article. I hope this article can provide you with practical information and technical support in sow pregnancy detection. By understanding and applying this method, you will effectively improve breeding efficiency and economic benefits.