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Extender based on caseins with addition of Cholesterol. Milk casein posphoproteins protect sperm cells from the action of seminal plasma proteins (HSP-1, HSP-2) and Ca++ ions, prolonging spermatic longevity favoring semen transport.

The temperature of 5°C or 15°C can be used for semen cooled transport as well as for pre-freezing centrifugation. Use dilutions of 50 million/ml for cooled transport, respecting the minimum of 2 parts of extender to 1 part of semen.

In case of samples requiring centrifugation before cooled transport should be respected the resuspension of spermatozoa to 100 million/ml.  DO NOT exceed the appropriate concentrations of cholesterol.

Paper reports that seminal samples diluted in casein present a higher rate of binding to the oocyte.  Suitable for all stallions, especially for those with suspected premature sperm capacitation.

BotuSemen Gold presented liquid translucent which facilitates visualization for cushion centrifugation.