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Iraqi Journal of Veterinary Sciences

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Assessment of different methods of bovine oocytes collection, maturation and Invitro fertilization of abattoir specimens

    W.M. Saleh

Iraqi Journal of Veterinary Sciences, 2017, Volume 31, Issue 1, Pages 55-65
10.33899/ijvs.2017.126711

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Abstract

The aim of this study is designed to evaluate the best methods for cow oocytes collection from abattoir specimens which is the cheapest, easily obtained and bulky number. Forty five fresh cow genitalia specimens and testicle were collected directly after slaughter from Al-Shoáalla abattoir north-west of Baghdad the capital early morning, transported in cool box under (4-8) °C to the laboratory of theriogenology in the college of veterinary medicine/Baghdad University during the period from November 2016 to February 2017. Ovaries were separated from the surrounding tissues, washed thoroughly with dis. water repeatedly, then with normal saline and finally with MEM medium containing Antibiotics and Nystatin for contaminant elimination. Oocytes were collected with four methods aspiration, slashing, slicing after aspiration and slicing. The result showed that; the collected oocytes were 55, 68, 87 and 106 oocytes respectively; slicing methods yield more oocytes count. Period of time between slaughtering and samples processing significantly affect oocytes collected percentage and quality, periods as 2, 6, 12 and 24 hours yield 75%, 68%, 61% and 55% oocytes counts of good, fair, poor to aged and bad quality oocytes respectively. Two hours period yield an elevated oocytes count with good quality. Maturation index of oocytes according to the type of collected methods showed 44, 37, 39 and 42 with 12, 8, 6 and 6 good oocyte quality for the four methods respectively. In conclusion slicing methods yield more oocytes count with a moderate quality and embryos production while aspiration methods yield a moderate oocytes count with an elevated quality and good embryos production.
Keywords:
    Oocytes Aspiration Slashing Slicing Embryo
Main Subjects:
  • Reproduction Biotechnology
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(2017). Assessment of different methods of bovine oocytes collection, maturation and Invitro fertilization of abattoir specimens. Iraqi Journal of Veterinary Sciences, 31(1), 55-65. doi: 10.33899/ijvs.2017.126711
W.M. Saleh. "Assessment of different methods of bovine oocytes collection, maturation and Invitro fertilization of abattoir specimens". Iraqi Journal of Veterinary Sciences, 31, 1, 2017, 55-65. doi: 10.33899/ijvs.2017.126711
(2017). 'Assessment of different methods of bovine oocytes collection, maturation and Invitro fertilization of abattoir specimens', Iraqi Journal of Veterinary Sciences, 31(1), pp. 55-65. doi: 10.33899/ijvs.2017.126711
Assessment of different methods of bovine oocytes collection, maturation and Invitro fertilization of abattoir specimens. Iraqi Journal of Veterinary Sciences, 2017; 31(1): 55-65. doi: 10.33899/ijvs.2017.126711
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