Characteristics of Adenosinetriphosphatase of Ram Ejaculated Spermatozoa and Isolated Sperm Tails
نویسندگان
چکیده
منابع مشابه
Distribution of adenosinetriphosphatase activity in ram and bull spermatozoa.
The active transport of sodium and potassium has been demonstrated in dog spermatozoa (Quinn & White, 1967) and the existence of a cation pump, involving a sodium\p=m-\potassiumactivated ATPase has been postulated to account for the gradients of alkali metal ions between the cell and seminal plasma (Quinn, White & Wirrick, 1965). Recently, Uesugi & Yamazoe (1966) have reported the occurrence of...
متن کاملLipid composition and metabolism in testicular and ejaculated ram spermatozoa.
1. Spermatozoa collected directly from the testis of the conscious ram contain 25% more phospholipid than ejaculated spermatozoa. The concentration of lecithin, phosphatidylethanolamine and ethanolamine plasmalogen was greater in testicular spermatozoa; little difference was observed in choline plasmalogen. Both types of spermatozoa had significant amounts of cardiolipin and alkyl ether phospho...
متن کاملIs prnt a Pseudogene? Identification of Ram Prt in Testis and Ejaculated Spermatozoa
A hallmark of prion diseases or transmissible spongiform encephalopaties is the conversion of the cellular prion protein (PrP(C)), expressed by the prion gene (prnp), into an abnormally folded isoform (PrP(Sc)) with amyloid-like features that causes scrapie in sheep among other diseases. prnp together with prnd (which encodes a prion-like protein designated as Doppel), and prnt (that encodes th...
متن کاملEffect of Different Levels of Vitamin C and Zinc on Sperm Quality Characteristics of Arabi Ram
During the semen storage, oxidative damage is one of the major causes of reduced motility and fertility of spermatozoa. Therefore, antioxidants such as zinc and vitamin C in seminal plasma may be have the important effects on reduce the lipid peroxidation of spermatozoa by prevent the destroy effect of ROS. The aim of this study was to evaluate the effect of different levels of vitamin C and zi...
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quality reflected the interrelationship of the ant ln cycles with low quality ~d during velvet antler growth stages and it was higher a t the hard ant la of viable spermatozoa produced by the testes are present in ejaculates. This e finding that the sperm production in tropical species show fluctuations in d to the stages of the antler cycle, with increared levels of production and [ring hard a...
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ژورنال
عنوان ژورنال: Biology of Reproduction
سال: 1969
ISSN: 0006-3363,1529-7268
DOI: 10.1095/biolreprod1.3.215