قراءة كتاب Preservation of Bull Semen at Sub-Zero Temperatures

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Preservation of Bull Semen at Sub-Zero Temperatures

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دار النشر: Project Gutenberg

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Bulletin 621

UNIVERSITY OF ILLINOIS
AGRICULTURAL EXPERIMENT STATION

Page
EARLY WORK ON FREEZING SEMEN		5

SELECTION OF SEMEN FOR FREEZING		6
	Predicting freezability	6
	Freezability of first and second ejaculates	7
	Freezability of several consecutive ejaculates	7
	Freezability of epididymal sperm	9
	Freezability of washed sperm	10

EXTENDERS FOR FREEZING BULL SEMEN		10
	Proportion of egg yolk in final diluent	10
	Citrate level in final diluent	11
	Storing and freezing diluent	12
	Other diluents	13

DILUTION RATES		14
	Effect of further dilution and refreezing	14

GLYCEROL ADDITIONS		17
	Effect of glycerol on sperm survival at 5° C.	17
	Glycerol levels for freezing semen	18
	Rate, temperature, and method of adding glycerol	18