Sperm Dilution Protocol

Sperm dilution protocol is a laboratory method for reducing the concentration of sperm in a semen sample to obtain a defined, workable suspension for measurement or downstream biological procedures. It works by combining the sample with a selected diluent in a controlled proportion and mixing carefully so sperm cells are distributed evenly while protocol conditions limit changes in cell viability and motility. Standardized dilution supports accurate sperm counting, concentration and motility assessment, sample preparation, and comparison across experiments, making it useful in reproductive biology, fertility research, and laboratory quality control.

Sperm Dilution Protocol - Related Videos

Research

JoVE Journal - Biology

Fluorescence in situ hybridization (FISH) Protocol in Human Sperm

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Cited by 39 •

2009

This video-article describes, step by step, how to process a semen sample to achieve good-quality fluorescence in situ hybridization on human spermatozoa. Preparations obtained can be used for aneuploidy screening in the context of clinical diagnosis.

Two Types of Assays for Detecting Frog Sperm Chemoattraction

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Cited by 5 •

2011

Eggs and the extracellular coatings around eggs frequently release peptides, proteins and small molecules that communicate with sperm to guide them to the egg thereby promoting fertilization. Using frog sperm we describe and compare two classes of assays used to detect sperm chemoattraction – sperm accumulation assays and sperm tracking assays.

Research

JoVE Journal - Biology
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A High-Throughput Method For Zebrafish Sperm Cryopreservation and In Vitro Fertilization

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Cited by 29 •

2009

This is a high-throughput sperm cryopreservation protocol for zebrafish. Sperm cryopreserved using this protocol has an average of 25% fertility in subsequent vitro fertilization and is stable over many years.

Harvesting Sperm and Artificial Insemination of Mice

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Cited by 17 •

2007

This protocol demonstrates methods for extracting sperm from the testes of males and then inseminating female mice. This procedure is useful when precise time is needed in developmental studies as well as transgenic work.

Isolation and In vitro Activation of Caenorhabditis elegans Sperm

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Cited by 26 •

2011

A protocol for isolating and activating spermatids from male C. elegans is described here. Cutting the posterior end of male releases spermatids. The spermatids can be activated by addition of protease.

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