Dépouillements

Halitosis and weight loss in a cat. / Genaro A. Coria-Avila in LabAnimal-Europe, 7/10 (Juillet 2010)

Public ISBD [article]  inLabAnimal-Europe > 7/10 (Juillet 2010) . - p. 8-12 Titre : Halitosis and weight loss in a cat. Type de document : texte imprimé Auteurs : Genaro A. Coria-Avila Année de publication : 2010 Article en page(s) : p. 8-12 Langues : Anglais (eng) Permalink : ./index.php?lvl=notice_display&id=76487 [article] Halitosis and weight loss in a cat. [texte imprimé] / Genaro A. Coria-Avila . - 2010 . - p. 8-12. Langues : Anglais (eng) in LabAnimal-Europe > 7/10 (Juillet 2010) . - p. 8-12 Permalink : ./index.php?lvl=notice_display&id=76487

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Effect of cage-change frequency on rodent breeding performance. / Amy E. Sanderson in LabAnimal-Europe, 7/10 (Juillet 2010)

Public ISBD [article]  inLabAnimal-Europe > 7/10 (Juillet 2010) . - p. 15-22 Titre : Effect of cage-change frequency on rodent breeding performance. Type de document : texte imprimé Auteurs : Amy E. Sanderson Année de publication : 2010 Article en page(s) : p. 15-22 Langues : Anglais (eng) Résumé : Many people who work in laboratory rodent breeding facilities believe that disrupting certain sensitive rodent lines will result in increased breeding failures and loss of newborn pups. To evaluate this hypothesis, the authors assessed the effect of cage-change frequency on the breeding performances of a mouse strain (C57BL/6NTac) and a rat stock (NTac:NIH-Whn) that were thought to be sensitive to disruption. As per recommendations in the Guide for the Care and Use of Laboratory Animals, personnel changed one half of the breeding cages weekly, regardless of the presence of newborn pups. The other breeding cages were also changed weekly, unless newborn pups were present, in which case the cages were not changed until the following week. The authors assessed breeding performance by calculating the production efficiency index (the total number of pups that survived to weaning divided by the total number of actively breeding females). Breeding performance did not differ significantly between rodents whose cages were changed weekly and those whose pups were not disturbed. Permalink : ./index.php?lvl=notice_display&id=76488 [article] Effect of cage-change frequency on rodent breeding performance. [texte imprimé] / Amy E. Sanderson . - 2010 . - p. 15-22. Langues : Anglais (eng) in LabAnimal-Europe > 7/10 (Juillet 2010) . - p. 15-22 Résumé : Many people who work in laboratory rodent breeding facilities believe that disrupting certain sensitive rodent lines will result in increased breeding failures and loss of newborn pups. To evaluate this hypothesis, the authors assessed the effect of cage-change frequency on the breeding performances of a mouse strain (C57BL/6NTac) and a rat stock (NTac:NIH-Whn) that were thought to be sensitive to disruption. As per recommendations in the Guide for the Care and Use of Laboratory Animals, personnel changed one half of the breeding cages weekly, regardless of the presence of newborn pups. The other breeding cages were also changed weekly, unless newborn pups were present, in which case the cages were not changed until the following week. The authors assessed breeding performance by calculating the production efficiency index (the total number of pups that survived to weaning divided by the total number of actively breeding females). Breeding performance did not differ significantly between rodents whose cages were changed weekly and those whose pups were not disturbed. Permalink : ./index.php?lvl=notice_display&id=76488

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Sexually segregated housing results in improved early larval survival in zebrafish. / Mark S. Kurtzman in LabAnimal-Europe, 7/10 (Juillet 2010)

Public ISBD [article]  inLabAnimal-Europe > 7/10 (Juillet 2010) . - p. 23-33 Titre : Sexually segregated housing results in improved early larval survival in zebrafish. Type de document : texte imprimé Auteurs : Mark S. Kurtzman Année de publication : 2010 Article en page(s) : p. 23-33 Langues : Anglais (eng) Résumé : Large-scale aquaculture facilities require highly optimized husbandry protocols that maximize fecundity and embryo health while minimizing cost and effort. Although zebrafish are being increasingly used for preclinical drug screens, functional genomic research and toxicological and behavioral studies, many of the basic husbandry procedures that are used for these fish have not been thoroughly tested. In this study, the authors compared the breeding success of zebrafish housed in sex-separated and those housed in mixed-gender arrangements. They observed a significant increase in fecundity (egg production) between the first and the third breeding and found that egg survivorship tended to increase during successive pairings. The authors also found that zebrafish had higher fecundity, egg viability and seemed to have a higher breeding success rate when males and females were housed separately than when they were housed together. Permalink : ./index.php?lvl=notice_display&id=76489 [article] Sexually segregated housing results in improved early larval survival in zebrafish. [texte imprimé] / Mark S. Kurtzman . - 2010 . - p. 23-33. Langues : Anglais (eng) in LabAnimal-Europe > 7/10 (Juillet 2010) . - p. 23-33 Résumé : Large-scale aquaculture facilities require highly optimized husbandry protocols that maximize fecundity and embryo health while minimizing cost and effort. Although zebrafish are being increasingly used for preclinical drug screens, functional genomic research and toxicological and behavioral studies, many of the basic husbandry procedures that are used for these fish have not been thoroughly tested. In this study, the authors compared the breeding success of zebrafish housed in sex-separated and those housed in mixed-gender arrangements. They observed a significant increase in fecundity (egg production) between the first and the third breeding and found that egg survivorship tended to increase during successive pairings. The authors also found that zebrafish had higher fecundity, egg viability and seemed to have a higher breeding success rate when males and females were housed separately than when they were housed together. Permalink : ./index.php?lvl=notice_display&id=76489

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Multiple ovarian transplants to rescue a transgenic line of mice. / Joyce Dawes in LabAnimal-Europe, 7/10 (Juillet 2010)

Public ISBD [article]  inLabAnimal-Europe > 7/10 (Juillet 2010) . - p. 34-38 Titre : Multiple ovarian transplants to rescue a transgenic line of mice. Type de document : texte imprimé Auteurs : Joyce Dawes Année de publication : 2010 Article en page(s) : p. 34-38 Langues : Anglais (eng) Résumé : Transgenic mice are useful tools for studying gene function and regulation but can be difficult to successfully breed. To 'rescue' transgenic lines that are difficult to propagate, researchers use a variety of techniques. One method is ovarian transplant, in which researchers remove ovaries from a donor transgenic mouse, cryopreserve the ovarian tissue, transplant this tissue into histocompatible female mice and breed these recipient females. Though it is a useful technique, cryopreservation can potentially damage ovarian tissue, which could reduce fertility. In this article, the authors describe how they carried out ovarian transplants without cryopreservation to rescue a line of transgenic C57BL/6 mice. Other researchers who have experience with mouse reproductive surgery should be able to use this technique to rescue infertile transgenic lines of mice. Permalink : ./index.php?lvl=notice_display&id=76490 [article] Multiple ovarian transplants to rescue a transgenic line of mice. [texte imprimé] / Joyce Dawes . - 2010 . - p. 34-38. Langues : Anglais (eng) in LabAnimal-Europe > 7/10 (Juillet 2010) . - p. 34-38 Résumé : Transgenic mice are useful tools for studying gene function and regulation but can be difficult to successfully breed. To 'rescue' transgenic lines that are difficult to propagate, researchers use a variety of techniques. One method is ovarian transplant, in which researchers remove ovaries from a donor transgenic mouse, cryopreserve the ovarian tissue, transplant this tissue into histocompatible female mice and breed these recipient females. Though it is a useful technique, cryopreservation can potentially damage ovarian tissue, which could reduce fertility. In this article, the authors describe how they carried out ovarian transplants without cryopreservation to rescue a line of transgenic C57BL/6 mice. Other researchers who have experience with mouse reproductive surgery should be able to use this technique to rescue infertile transgenic lines of mice. Permalink : ./index.php?lvl=notice_display&id=76490

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Venipuncture in bats / David Eshar in LabAnimal-Europe, 7/10 (Juillet 2010)

Public ISBD [article]  inLabAnimal-Europe > 7/10 (Juillet 2010) . - p. 40-42 Titre : Venipuncture in bats Type de document : texte imprimé Auteurs : David Eshar Année de publication : 2010 Article en page(s) : p. 40-42 Langues : Anglais (eng) Résumé : Though not as common as small rodents in laboratory settings, bats are being increasingly used in research studies. Knowledge of proper blood sampling techniques is essential for care and management of bats. Permalink : ./index.php?lvl=notice_display&id=76491 [article] Venipuncture in bats [texte imprimé] / David Eshar . - 2010 . - p. 40-42. Langues : Anglais (eng) in LabAnimal-Europe > 7/10 (Juillet 2010) . - p. 40-42 Résumé : Though not as common as small rodents in laboratory settings, bats are being increasingly used in research studies. Knowledge of proper blood sampling techniques is essential for care and management of bats. Permalink : ./index.php?lvl=notice_display&id=76491

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