APRON
发表于 2025-4-1 05:41:55
Fertilization and Sperm Chemotaxis in Ascidians,s (., and their attractant was identified as the bimalate ion (.). In animals, sperm chemotaxis to the egg was first observed in the hydrozoan . (.) and is now widely recognized in all species from cnidarians to human (for reviews, ...–.).
象形文字
发表于 2025-4-1 06:59:50
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instill
发表于 2025-4-1 14:02:08
Molecular and Cellular Approaches for Establishment of an In Vitro Spermatogenesis System,ing daughter cells of spermatogonial stem cells develop into mature sperm (.,.). In men, this process requires approx 64 d, 52 d in the rat, and 35 d in the mouse. This process in mammals occurs in a highly coordinated fashion within the seminiferous epithelium inside the seminiferous tubule. Spermatogenesis can be divided into three phases.
继而发生
发表于 2025-4-1 15:20:28
In Vitro Maturation and Fertilization of Canine Oocytes,ing the last 10 yr. Few studies have been conducted on dogs because the availability of biological material (bitch ovaries in particular) is limited, whereas bovine, porcine, ovine, or equine ovaries can be found in a slaughterhouse and smaller animals (mice, rats) can be bred easily and at low cost.