Journal of Zhejiang University SCIENCE B
ISSN 1673-1581(Print), 1862-1783(Online), Monthly

2007   Vol. 8   No. 7   p. 465~469

Qualitative and quantitative analysis of goat ovaries, follicles and oocytes in view of in vitro production of embryos

ISLAM M.R.^†1, KHANDOKER M.A.M.Y.², AFROZ S.², RAHMAN M.G.M.², KHAN R.I.³

(¹Animal Division, National Institute of Biotechnology (NIB), Atomic Energy Research Establishment (AERE), EPZ, Savar, Dhaka-1349, Bangladesh)
(²Reproductive Biotechnology Laboratory, Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh)
(³Department of Animal Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh)
^†E-mail: mrislamnib_ad@yahoo.com
Received Dec. 21, 2006 revision accepted May 17, 2007

Abstract: Goat ovaries were collected from the slaughterhouse and categorized as right, left, corpus luteum (CL)-present and -absent group and evaluated on the basis of weight (g), length (cm), width (cm), number of follicles, follicles aspirated and number and state of cumulus-oocyte-complexes (COCs). Comparatively higher weight [(0.66±0.02) vs (0.64±0.02) g], length [(1.17±0.02) vs (1.11±0.02) cm] and width [(0.77±0.02) vs (0.74±0.02) cm] were found in right ovaries than those of left. On the other hand significantly (P<0.05) higher weight [(0.71±0.03) vs (0.64±0.01) g] and width [(0.76±0.03) vs (0.75±0.01) cm] were found in CL-present group than those of CL-absent group of ovaries. The left ovaries contained comparatively higher number of normal COCs [(1.06±0.09) per ovary] than right ovaries [(1.03±0.10) per ovary] and the similar trend was found in total number of follicles [(4.51±0.25) vs (4.30±0.23) per ovary] and follicles aspirated [(2.55±0.14) vs (2.52±0.12) per ovary]. But the total COCs per ovary was almost similar in both ovaries [right and left: (1.85±0.12) and (1.85±0.11) per ovary, respectively]. Higher number of total COCs [(1.87±0.09) vs (1.76±0.16) per ovary], total number of follicles [(4.45±0.19) vs (4.16±0.37) per ovary], follicles aspirated [(2.55±0.10) vs (2.48±0.21) per ovary] and normal COCs [(1.12±0.07) vs (0.76±0.14) per ovary] were found in CL-absent group than those of CL-present group of ovaries.

Key words: Goat ovary, Follicles, Cumulus-oocyte-complexes (COCs), In vitro production (IVP)
doi:10.1631/jzus.2007.B0465             CLC number: Q954.4

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