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Paper Information

Journal:   ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ)   2015 , Volume 25 , Number 4; Page(s) 93 To 105.
 
Paper: 

IN VITRO DEVELOPMENTAL COMPETENCE OF BOVINE OOCYTES IN RELATION TO SIDE OF OVARIES, PRESENCE OF CORPUS LUTEUM AND FOLLICLE SIZE

 
 
Author(s):  KARAMI SHABANKAREH H., HAJARIAN H., SHAHSAVARI M.H.*, FOROUTANI FAR S.
 
* DEPARTMENT OF ANIMAL SCIENCE, FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ, TABRIZ, IRAN
 
Abstract: 

BACKGROUND: There are many discrepancies about positive or negative effects of corpus luteum (CL) and unequal activity of sides of the reproductive system.
OBJECTIVES: the initial aim of this study was to assess the developmental competence of bovine oocytes originating from right or left ovaries bearing a CL (R.CL+-oocytes or L.CL+-oocytes) or not bearing a CL (R.CL--oocytes or L.CL--oocytes) using the brilliant cresyl blue (BCB) test as a selection criterion (experiment 1).
METHODS: In experiment 1, collected oocytes exposed to BCB and separated as growing (BCB-) and grown oocytes (BCB+, more competent). Then, all of the oocytes were subjected to the in vitro embryo production (IVEP) processes.
RESULTS: Results of this experiment showed no differences in the embryonic development due to effects of side of ovaries (i.e., right vs. left) or BCB selection (i.e., BCB+ vs. BCB?). However, in case of R.CL
?-oocytes, there was a heterogeneity in the developmental competence of oocytes and the percentage of oocytes classified as BCB+ was greater (P< 0. 05) than that of BCB- (57.6% versus 42.4%, respectively). Furthermore, the percentages of cleavage and blastocyst obtained of CL+-oocytes were lower than those of CL--oocytes (P< 0.001). The second objective was to evaluate heterogeneity in the developmental potential of oocytes in relation to presence or absence of CL and follicle size. After ovarian classification based on presence or absence of CL, sample follicles were placed in three groups according to their diameter, i.e., small, medium and large or big and collected oocytes in each group subjected to the IVEP processes. Results showed that CL+.B-oocytes were not influenced by negative effects of CL as much as CL+.S-oocytes did.
CONCLUSIONS: Therefore, it can be concluded that using oocytes originating from large follicles of ovaries not bearing a CL may decrease problems associated with IVEP of bovine embryos.

 
Keyword(s): CORPUS LUTEUM, BRILLIANT CRESYL BLUE, DEVELOPMENTAL POTENTIAL, IN VITRO EMBRYO PRODUCTION, FOLLICLE SIZE
 
 
References: 
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Citations: 
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APA: Copy

KARAMI SHABANKAREH, H., & HAJARIAN, H., & SHAHSAVARI, M., & FOROUTANI FAR, S. (2015). IN VITRO DEVELOPMENTAL COMPETENCE OF BOVINE OOCYTES IN RELATION TO SIDE OF OVARIES, PRESENCE OF CORPUS LUTEUM AND FOLLICLE SIZE. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), 25(4), 93-105. https://www.sid.ir/en/journal/ViewPaper.aspx?id=508692



Vancouver: Copy

KARAMI SHABANKAREH H., HAJARIAN H., SHAHSAVARI M.H., FOROUTANI FAR S.. IN VITRO DEVELOPMENTAL COMPETENCE OF BOVINE OOCYTES IN RELATION TO SIDE OF OVARIES, PRESENCE OF CORPUS LUTEUM AND FOLLICLE SIZE. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ). 2015 [cited 2021July24];25(4):93-105. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=508692



IEEE: Copy

KARAMI SHABANKAREH, H., HAJARIAN, H., SHAHSAVARI, M., FOROUTANI FAR, S., 2015. IN VITRO DEVELOPMENTAL COMPETENCE OF BOVINE OOCYTES IN RELATION TO SIDE OF OVARIES, PRESENCE OF CORPUS LUTEUM AND FOLLICLE SIZE. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), [online] 25(4), pp.93-105. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=508692.



 
 
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