Standardized Breeding Regime
Standardized Breeding Regime - Related Videos
15:00
Fundamentals of Breeding and Weaning
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2016
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN Millions of mice and rats are bred for use in biomedical research each year. Worldwide, there are several large commercial breeding facilities that supply mice to research laboratories, but many facilities also choose to breed mice and rats in-house to reduce costs and increase research options. When breeding in the animal facility, researchers are able to manipulate the genetics of the...
01:33
Breeding Management in Rodent Studies
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Breeding management supports the 3Rs by minimizing unnecessary animal production and ensuring that only the number of animals required for a study is generated. Effective breeding strategies help reduce surplus animals and...
07:48
Zebrafish Breeding and Embryo Handling
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2023
Zebrafish (Danio rerio) are an important model organism that is particularly valuable for research in developmental biology. Zebrafish are extremely fertile and can produce hundreds of progeny per week, so it is relatively easy to collect a large number of embryos for high sample numbers. Furthermore, zebrafish undergo rapid development and embryos are transparent, allowing for easy visualization of developmental processes. This video covers the steps required for the collection of newly...
01:59
Plant Breeding and Biotechnology
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2020
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food. As humans' understanding of genetics advanced, improved crop varieties could be achieved more quickly. Artificial selection could be more directed, and crop varieties enhanced for favorable traits more quickly to produce better, more robust, or more palatable plants.
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Operation of Laboratory Photobioreactors with Online Growth Measurements and Customizable Light Regimes
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Cited by 2 •
2021
This publication describes the design of laboratory photobioreactors (PBRs) with customizable light regimes. The growth of cyanobacteria or microalgae, using bicarbonate as their carbon source, is monitored continuously by measuring volumetric oxygen production. These PBRs facilitate rapid, replicated laboratory growth comparisons with little user intervention during experiments.
FAQs
Genetic background, age, and reproductive status are controlled because each can contribute to biological variation independently of the factor under study. Keeping these variables defined makes differences between populations easier to attribute to the planned breeding design rather than to unrecorded reproductive or genetic differences. This strengthens comparisons across experiments.
The regime improves reproducibility by making mate selection, breeding timing, housing, and records consistent from one breeding cycle or study to the next. These controls reduce variation introduced by uncontrolled reproduction, so researchers can repeat experiments with populations that are more comparable. The resulting consistency supports clearer interpretation of observed traits.
Planned crosses use deliberate mate selection to organize which parental organisms contribute to a population. When resulting traits are compared with recorded parental information, researchers can examine inheritance patterns under defined conditions. This helps separate patterns associated with the cross itself from variation arising from inconsistent breeding histories.
A practical setup defines mate selection, breeding timing, housing conditions, and record-keeping, while also documenting genetic background, age, and reproductive status. Researchers can use these records to verify that intended conditions were maintained and to interpret differences among populations. The value lies not in one variable, but in controlling their combination.
In biology, researchers use this approach when they need laboratory strains, planned crosses, or trait comparisons that remain interpretable across studies. It is relevant to genetics, development, behavior, and disease modeling because reproductive history can influence the populations being examined. Consistent breeding helps these fields compare results with less ambiguity.
It can produce consistent biological populations, clarify inheritance patterns, and improve the reliability of comparisons among traits. In disease modeling and other biological studies, controlled reproductive histories help researchers distinguish meaningful experimental findings from differences caused by uncontrolled breeding. The broader outcome is stronger reproducibility across experiments and studies.