VGO 511: Veterinary Andrology and Reproductive Techniques (1+1)

CAPROGEN

During preparation of this diluent, caproic acid is added. Hence it was named as caprogen.

• The citrate-buffered yolk diluent was improved by gassing with nitrogen and adding caproic acid.
• This led to an extender called “caprogen”. The composition is as follows

S.No.	Components	Quantity
1	Sodium citrate dihydrate	2.0 per cent
2	Glucose	0.3 per cent
3	Glycine	1.0 per cent
4	Glycerol	1.25 per cent
5	Caproic acid	0.0325 per cent
6	Sulphacetamide	0.01 per cent
7	Egg yolk	20 per cent

• This was used routinely in New Zealand for extending sperm stored at 5^o.
• Later this was modified for ambient temperature use by reducing the egg yolk content.

TOP