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Ovine epididymal spermatozoa preservation in liquid state with or without seminal plasma epididimários ovinos Ciência Rural
Bergstein-Galan,Tácia Gomes; Weiss,Romildo Romualdo; Barbosa,Thiago Salvati Rodrigues; Kozicki,Luiz Ernandes; Bicudo,Sony Dimas.
ABSTRACT: Preservation and use of spermatozoa that have been recovered after death can extend the use of genetically superior animals. The objective of this study was to evaluate the maximum period for which ovine spermatozoa could be successfully stored in refrigerated dilution medium post-mortem, with or without added seminal plasma. Three samples of spermatozoa collected in an artificial vagina from 10 rams, or from the tails of four epididymes from the same rams at the time of death (G0) and six (G6), twelve (G12), twenty-four (G24) and forty-eight (G48) hours after death were used. After recovery, the spermatozoa were refrigerated at 5°C in either control medium (CM) or control medium plus 20%homologous seminal plasma (SP) and evaluated for 72 hours...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Refrigeration; Epididymis; Post mortem.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000800700
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Proteolytic potential in white muscle of sea bass (Dicentrarchus labrax L.) during post mortem storage on ice: time-dependent changes in the activity of the components of the calpain system ArchiMer
Delbarre Ladrat, Christine; Verrez-bagnis, Veronique; Noel, Joelle; Fleurence, Joel.
The variations in the amounts of milli-calpain and its specific inhibitor in the white muscle of sea bass (Dicentrarchus labrax) during storage at 4 degreesC for up to 7 days were determined after separation by hydrophobic chromatography on a Phenyl Sepharose vel. There was a significant decline in post-slaughter m-calpain activity with an important inter-individual variability in the rate of decrease of the total activity. In contrast with the calpastatin of mammalian post mortem muscles, calpastatin remained constant within fish muscles after death. The initial levels of protease and inhibitor activities, and their behaviour through post mortem storage. are discussed and implications for the mechanism of tenderisation of fish muscle are suggested. (C)...
Tipo: Text Palavras-chave: Proteolysis; Post mortem; Fish muscle; Calpain; Calpastatin; Neutral calcium dependent protease.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/publication-1683.pdf
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