The involvement of beta-1,4-galactosyltransferase and N-acetylglucosamine residues in fertilization has been lost in the horse

Table 2 Number of fresh or frozen spermatozoa bound to the zona pellucida of oocytes incubated with UDP Galactose, UDP Glucose or without any additive.

Groups		UDP Galactose	UDP Glucose	No additive
Fresh semen	No. Oocytes	35	34	33
	Spermatozoa/oocyte (mean ± SEM, n = 3)	42 ± 6	47 ± 7	64 ± 11
Frozen semen	No. Oocytes	37	38	38
	Spermatozoa/oocyte (mean ± SEM, n = 2)	29 ± 3	30 ± 2	28 ± 2

No statistical difference was observed between the columns in the same line (for fresh semen F = 1.97 and p = 0.14, for frozen semen F = 0.17 and p = 0.84)
n: number of replicates

ISSN: 1477-7827