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1

Influence of medium on viability of bovine embryos produced in vitro after their biopsy

100%
Lasiene K., Valanciute A., Lasys V.
Medycyna Weterynaryjna
|
2005
|
tom 61
|
nr 12
2

The influence of medium on viability of bovine morulae produced in vitro after their biopsy

88%
Lasiene K., Valanciute A., Lasys V., Vitkus A., Tusas S.
Polish Journal of Veterinary Sciences
|
2006
|
tom 09
|
nr 3
The aim of this study was to determine the influence of two different media on the viability of in vitro produced biopsied bovine morulae. Bovine morulae were produced in vitro, then biopsied and cultured in the Ham's F10 and IVM media. Cultured and control morulae were stained with Hoechst 33342 and propidium iodide. Morulae were classified morphologically for excellent, good and degenerated quality. 42.86% of biopsied morulae cultured in the Ham's F10 medium and only 11.11% (only one) of these embryos cultured in the IVM were of excellent quality. Embryos of good quality were about 2 times less numerous in Ham's F10 medium (28.57%) than in IVM medium (55.5%) (P < 0.05). 28.57% of biopsied morulae cultured in Ham's F10 medium and 33.33% of these embryos cultured in the IVM degenerated (P > 0.05). The media had no significant influence on the number of total and viable blastomeres of morulae cultured in vitro after biopsy (P > 0.05). But the quantity of restored (excellent and good quality) embryos was higher when they were cultured after biopsy in Ham's F10 medium than in IVM. These statistically significant results (P < 0.05) show that the Ham's F10 medium is better for the restoring of biopsied bovine embryos produced in vitro than IVM.
3

Mast cells and pathological process in lungs of rats and mice

76%
Juodziukyniene N., Aniuliene A., Siugzdaite J., Zymantiene J., Juozaitiene V., Lasiene K., Sokolovaite G.
Medycyna Weterynaryjna
|
2021
|
tom 77
|
nr 02
4
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Evaluation of morphological criteria of sperm quality before in vitro fertilization and intracytoplasmic sperm injection

76%
Lasiene K., Gedrimas V., Vitkus A., Glinskyte S., Lasys V., Valanciute A., Sienkiewicz W.
Polish Journal of Veterinary Sciences
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2013
|
tom 16
|
nr 4
The quality of sperm has a direct influence on the fertilization and developmental competence of embryos. In the literature we did not find defined criteria for evaluation of normal sperm parameters in various species of domestic mammals. Therefore we attempted to review evaluation of criteria of morphologically normal human sperm and their abnormalities. All sperm cells observed in the stained sample are classified as normal or abnormal. Any abnormalities in morphology of sperm have a negative effect on the outcome in in vitro fertilization and intracytoplasmic sperm injection. Abnormal sperm are categorized into subgroups according to the observed defects (concerning the head and/or midpiece and/or tail). Most morphologically abnormal sperm have multiple defects. This article can be considered as guideline for the manual of sperm quality evaluation in different species of domestic mammals.
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