最後更新：2026年10月1日
精子數量顯著低於正常值，但非完全無精。可能導致受孕率降低。原因包括睪丸功能不全、感染、營養不良等。
Early spaying (before first estrus) reduces mammary carcinoma risk by > 90% in cats. Feline mammary tumors are highly malignant; radical mastectomy with wide margins is recommended. Cryptorchidism is less common in cats than dogs but still warrants surgical intervention.
不孕或受孕率低公犬常見
建議：LRS 維持量 + 矯正脫水（pyometra/dystocia 常有脫水）
類型：LRS
監測頻率：每日（術後）
[1]Aluminium toxicosis: a review of toxic actions and effects.
[2]Protective Effects of Chia Seeds and Omega-3 Fatty Acid against Cyclophosphamide-Induced Oligospermia in Male Wistar Rats: Potential Risks of Adverse Drug Interaction with Chia Seeds.
[3]Effects of phytoestrogens combined with cold stress on sperm parameters and testicular proteomics in rats.
需系統性診斷與治療計畫，延遲可能影響預後 (systematic workup needed, delay may affect prognosis)
可逆性病因（感染、營養、過度配種）預後較佳。睪丸功能不全預後保留。可能恢復但受孕率仍較低。
Diagnostic Approach for Oligospermia
Breeding history, cycle timing, vulvar discharge, mammary gland assessment
CBC, serum chemistry, progesterone level; vaginal cytology
Abdominal ultrasound for uterine and ovarian evaluation; radiography for fetal count/viability