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Table 1 Effects of intratesticular injection of calcium chloride on reproductive parameters at 1 year post-injection

From: Alcohol diluent provides the optimal formulation for calcium chloride non-surgical sterilization in dogs

Intratesticular Injection Total sperm count (n. × 106) Sperm motility (%) Serum testosterone concentration (ng/dL) Testicular width (mm)
Saline control (group C) 311.4 ± 21.4 (range 279-342) 80% (range 70-85) 735.2 ± 186.4 (range 398-985) 24.8 ± 2.0 (range 22.5-28.5)
CaCl2 in lidocaine (group A) 7.1 ± 16.4 (+) (range 0-47) 5% (range 0-5) 461.1 ± 118.1 (range 225-743) 12.7 ± 1.0 (range 11-15)
CaCl2 in alcohol (group B) 0 -- 165.7 ± 37.9 (range 104-246) 12.2 ± 0.9 (range 11-15)
  1. Data for effects of single, bilateral intratesticular injection of CaCl2 at 1 year post-injection (T3) is expressed as the group mean ± standard deviation.
  2. (+) 81% of the dogs remained azoospermic, whereas 19% showed severe oligospermia. (--) No presence of sperm and, thus, motility, were undetectable.