Table 2 Mean (± SD) values of seminal plasma oxidative profile and proteolysis regulator parameters, and semen parameters in the azoospermic donkey stallion. Semen collections (n = 2).

From: Oxidative profile and protease regulator potential to predict sperm functionality in donkey (Equus asinus)

 

Mean ± SD

Seminal plasma parameters

 

FRAP (FeSO4·7H2O equivalents, μM)

83.9 ± 28.5

TAC (ascorbic acid equivalents, μM)

0.0

FRSA (absorbance decrease, %)

5.7 ± 2.4

TTL (µM)

53.4 ± 2.2

TOS (t-BHP equivalents, μM)

0.0

NOx (NaNO3 equivalents, μM)

621.9 ± 7.7

AOPP (chloramine-T equivalents, μM)

0.0

PA (as bovine trypsin positive control, %)

20.6 ± 1.8

APA (trypsin activity inhibition, %)

3.6 ± 5.2

TP (BSA equivalents, mg mL−1)

4.2 ± 1.6

Semen parameters

 

Osmolarity (mOsm)

293.0 ± 8.5

pH

8.45 ± 0.06

Volume (mL)

17.5 ± 3.5

  1. FRAP: ferric reducing ability of plasma; TAC: total antioxidant capacity; FRSA: free radical scavenging activity; TTL: total thiol levels; TOS: total oxidant status; NOx: nitric oxide metabolites; AOPP: advanced oxidation protein products; PA: protease activity; APA: antiprotease activity; TP: total protein.
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