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2011 | 29 | 3 |
Tytuł artykułu

Effect of L-cysteine in extender on post-thaw quality of Sahiwal bull semen

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The study was conducted to evaluate the effect of addition of L-cysteine to tris-citric acid (TCA) extender on the post-thaw quality of Sahiwal bull semen. For this purpose, two consecutive ejaculates were collected from three Sahiwal bulls using artificial vagina at weekly intervals for a period of three weeks (three replicates). Qualifying semen ejaculates were diluted (50×106 motile spermatozoa ml-1) in TCA extender having L-cysteine either 0.0 (control) or 0.5, 1.0 or 2.0 mM. Diluted semen was cooled to 4°C for 2 h, equilibrated for 4 h at 4°C, filled in straws at 4°C, kept in liquid nitrogen vapours for 10 min and then stored in the liquid nitrogen. Thawing was performed after 24 h of storage, at 37°C for 30 s. and the sperm motility, viability, plasma membrane and acrosomal integrity were assessed. Higher (P<0.05) sperm motility, viability, plasma membrane and acrosomal integrity were observed using extenders containing 1.0 or 2.0 mM compared to those containing 0.5 or 0.0 mM L-cysteine. It is concluded that addition of L-cysteine (to reach 1.0-2.0 mM) in TCA extender improves the post-thaw quality of Sahiwal bull semen.
Wydawca
-
Rocznik
Tom
29
Numer
3
Opis fizyczny
p.197-203,fig.,ref.
Twórcy
autor
  • Animal Physiology Laboratory, Department of Zoology, Pir Mehr Ali Shab Arid Agriculture University of Ravalpindi, Ravalpindi-46300, Pakistan
autor
autor
Bibliografia
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  • ANSARI M.S., RAKHA B.A., ULLAH N., ANDRABI S.M.H., KHALID M., AKHTER S., 2011 – Effect of L-cysteine in tris-citric egg yolk extender on post thaw quality of Nili-Ravi buffalo (Bubalus bubalis) bull spermatozoa. Pakistan Journal of Zoology 43 (in press).
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Typ dokumentu
Bibliografia
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Identyfikator YADDA
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