Ovarian morphology and oocyte quality in relation to in vitro embryo production in ruminant animals

The aim of this study was to evaluate the reproductive status of small (sheep and goat) and large ruminants (cow and buffalo) slaughtered out of slaughterhouse through the characteristics of ovaries and oocytes. Ages of slaughtered animals were determined through the teeth. They were classified into...

Full description

Saved in:
Bibliographic Details
Published inAssiut University Journal of Agriculture Sciences, , Assiut Univ Vol. 40; no. 4; pp. 1 - 12
Main Author Mohammed, A.N .A
Format Journal Article
LanguageEnglish
Published 2009
Subjects
ABATTAGE D'ANIMAUX
ANIMAL EMBRYOS
BUFALO DE AGUA
BUFFLE D'EAU
CAPRIN
CAPRINOS
CONSERVACION DE OVOCITOS
CONSERVATION D'OVOCYTE
COWS
EMBRIONES ANIMALES
EMBRYON ANIMAL
GOATS
http://www.fao.org/aos/agrovoc#c_1939
http://www.fao.org/aos/agrovoc#c_25388
http://www.fao.org/aos/agrovoc#c_27585
http://www.fao.org/aos/agrovoc#c_3324
http://www.fao.org/aos/agrovoc#c_6171
http://www.fao.org/aos/agrovoc#c_7030
http://www.fao.org/aos/agrovoc#c_7107
http://www.fao.org/aos/agrovoc#c_8313
OOCYTE PRESERVATION
OVIN
OVINOS
PRESERVACION
PRESERVATION
SACRIFICIO
SHEEP
SLAUGHTERING
VACA
VACHE
WATER BUFFALOES
Online AccessGet more information

Cover

More Information
Summary:The aim of this study was to evaluate the reproductive status of small (sheep and goat) and large ruminants (cow and buffalo) slaughtered out of slaughterhouse through the characteristics of ovaries and oocytes. Ages of slaughtered animals were determined through the teeth. They were classified into young with milk teeth and adult with 2-8 permanent incisors. Genitalia were taken immediately after slaughtering the animals. The collected genitalia were normal and from non-pregnant animals, Ovaries were examined to determine the reproductive status according to the estrus cycle. Ovaries were classified into follicular or luteal phase. Weight of reproductive systems and ovaries as well as the number of follicles per animals were recorded. Oocyte were aspirated from the large follicles using an 18-gauge needle and examined under a stereomicroscope to identify and evaluate the quality of oocytes morphologically. Weights of ovaries were increased with increasing weights of reproductive systems.Also,weights of ovaries were increased significantly (P0.05)during the luteal phase compared to the follicular phase. Most of the examined ovaries were showed large number offollicles. The results indicated that the majority of the collected oocytes were evaluated and classified morphologically as grade I. The collected oocytes can be used for in vitro production of embryos and other purposes
Bibliography:L53
ISSN:1110-0486