Semen Collection Technique
Semen Collection Technique - Related Videos
07:40
Avian Semen Collection by Cloacal Massage and Isolation of DNA from Sperm
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Cited by 21 •
2018
This protocol describes cloacal massage, a non-invasive manual technique for collecting semen from birds, and DNA extraction from avian sperm using a commercial extraction kit with modifications.
04:36
A Simple Microaspiration Technique for Isolating Somatic Cells from Cryopreserved Equine Semen as Nuclear Donors for Cloning
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2025
This protocol presents a simple microaspiration technique to isolate viable somatic cells (SCs) from cryopreserved equine semen. Unlike traditional approaches, this technique avoids long in vitro cultures and overcomes sperm contamination, enabling immediate use in somatic cell cloning.
12:06
Collection of Post-mating Semen from the Female Reproductive Tract and Measurement of Semen Liquefaction in Mice
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Cited by 8 •
2017
Semen liquefaction is required for sperm to be liberated from the seminal gel. This study provides the procedures for collecting semen from the female reproductive tract post-coitus, and measuring semen liquefaction time.
01:22
Sperm Structure and Semen Composition
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2024
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
09:39
Technique to Collect Fungiform (Taste) Papillae from Human Tongue
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Cited by 30 •
2010
Knowledge of molecular mechanisms underlying gustatory transduction has recently enjoyed significant advances, largely due to using animal models. However, the wide diversity in taste sensitivity and specificity among mammals warrants studies in human tissue. We describe a biopsy technique to collect living taste cells from the papillae on human tongue.
FAQs
The stimulation method must be appropriate for both the species and the collection setting. This requirement recognizes that a procedure suitable in one biological or research context may not be suitable in another. Matching the method to those conditions supports controlled ejaculation and helps researchers obtain a sample that can undergo reliable cellular and biochemical examination.
A sterile container reduces the risk that external contaminants will alter the specimen, while labeling preserves its identity during examination or later use. Together, these practices protect sample quality and maintain a clear connection between the ejaculate and its associated animal, subject, or experimental record. They are therefore important for dependable analysis and reproductive applications.
Once obtained, the sample can be assessed for volume, sperm concentration, motility, morphology, and viability. These measurements describe different cellular and physical properties of the ejaculate and provide a structured basis for evaluating semen quality. Recording several characteristics rather than relying on one measurement supports broader studies of fertility and male reproductive biology.
A typical workflow selects a species-appropriate stimulation method, obtains the ejaculate under controlled conditions, and directs it into a sterile, labeled container. The collected material can then be examined for cellular and biochemical properties or prepared for reproductive use. Maintaining this sequence helps preserve sample identity and quality from collection through analysis or application.
These measures provide complementary information about the collected specimen. Volume records the amount obtained, concentration addresses the number of sperm present, and motility, morphology, and viability characterize additional sperm properties. Considering the full set allows researchers and clinicians to evaluate semen more comprehensively for fertility assessment, preservation studies, artificial insemination, and assisted reproduction.
The technique supports several biological and clinical goals, including fertility assessment, semen preservation, artificial insemination, assisted reproduction, and investigations of male reproductive biology. Its value extends beyond obtaining a specimen because the same controlled sample can be examined, preserved, or used in a reproductive procedure. The intended application determines how researchers handle and evaluate the ejaculate.