CAPACITAÇÃO TECNOLÓGICA – Suinocultura / Djane Dallanora (Aula 64)

Summary

This instructional video provides a comprehensive overview of boar semen collection for artificial insemination. It covers essential practices, including the proper housing of breeding males, pre-collection hygiene measures, and the meticulous semen collection process to minimize contamination. The video also details laboratory techniques for evaluating semen quality, such as concentration and motility assessments, and highlights the importance of temperature control throughout the procedures. Finally, it discusses the careful packaging of semen doses for transport to farms, emphasizing best practices to ensure high-quality insemination for optimal swine reproduction.

Takeaways

• 😀 The practical lesson focused on producing insemination doses for artificial insemination in pigs.
• 🐖 Proper housing for male pigs is crucial, emphasizing non-abrasive flooring and adequate feeding and watering points.
• 💧 Pre-collection procedures involve emptying the prepuce diverticulum to reduce contamination in the ejaculate.
• 📏 The collection process requires careful handling to discard the first jets of ejaculate, which are more contaminated.
• 🔬 In the laboratory, temperature stability is maintained during the transport of semen to prevent thermal shock.
• 📊 Semen analysis involves homogenization and concentration determination, with a target of over 70% motility for effective use.
• ⚖️ Pre-dilution of semen is crucial to prevent osmotic shock and ensure sperm viability.
• 🌡️ Continuous temperature monitoring is essential during dilution and packaging of semen.
• 📦 Packaging of insemination doses must be done in heated containers to maintain sperm quality during transportation.
• 👍 Overall, meticulous procedures in housing, collection, and laboratory management are vital for successful artificial insemination in pigs.

Q & A

What is the primary focus of the training discussed in the video?

The primary focus is on the technological training in pig farming, specifically regarding the collection and management of semen for artificial insemination in pigs.

Why is it important to empty the preputial diverticulum before semen collection?

Emptying the preputial diverticulum is crucial to reduce contamination, as it contains liquid that can introduce bacteria and other contaminants into the collected semen.

What are the recommended conditions for housing boars in a central insemination facility?

Boars should be housed in well-ventilated environments with non-abrasive flooring, access to food and water, and proper drainage to maintain hygiene and comfort.

What steps are taken during the semen collection process?

During semen collection, the boar is guided to a dummy, where it mounts to facilitate ejaculation. The initial part of the ejaculate is discarded to remove contaminants before collecting the viable sperm.

How is the semen transported to the laboratory after collection?

The collected semen is transported in an insulated container to maintain a stable temperature and prevent thermal shock to the sperm.

What methods are used to assess semen quality in the laboratory?

Semen quality is assessed by measuring its concentration and motility using devices like the Neubauer chamber, espermometer, and photometer.

What is the minimum motility percentage required for effective semen use?

A minimum motility percentage of 70% is required to ensure optimal results in terms of fertilization and the number of piglets born.

What precautions are taken during the dilution of the semen?

Precautions include using warmed materials to prevent osmotic shock, and maintaining similar temperatures between the diluent and the collected semen.

What is the significance of using disposable materials during the semen collection process?

Using disposable materials minimizes the risk of contamination and ensures that the collection process is hygienic, which is vital for maintaining semen quality.

How are the final doses of semen prepared for transport to farms?

The final doses of semen are prepared in heated, sterile containers, ensuring they are maintained at the appropriate temperature for transport to farms for artificial insemination.