Transvaginal ultrasound-guided oocyte retrieval following FSH stimulation of domestic goats

Graff, K.J.

doi:10.1016/s0093-691x(99)00055-2

Cited by 6 publications

(8 citation statements)

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“…Collection of oocytes from live donors has been performed by follicular puncture with sharp needles guided either by laparascopy or ultrasound in small ruminants (Baldassare et al 1994;Tervit et al 1995;Graff et al 1999;Baldassare et al 2001). Graff et al (1999) compared both procedures in goats and they found that transvaginal aspiration in spite of harvesting a half of oocytes available and being less efficient than transabdominal aspiration of follicles, it produced less adhesion. Laparascopy-guided follicular puncture doubles the efficiency of oocyte collection, but the adhesions reported by Graff et al (1999) may limit their use on donors.…”

Section: Introductionmentioning

confidence: 99%

“…Graff et al (1999) compared both procedures in goats and they found that transvaginal aspiration in spite of harvesting a half of oocytes available and being less efficient than transabdominal aspiration of follicles, it produced less adhesion. Laparascopy-guided follicular puncture doubles the efficiency of oocyte collection, but the adhesions reported by Graff et al (1999) may limit their use on donors. However Stangl et al (1999) performed repeated endoscopic ovum pick-up in sheep without as much adhesion.…”

Section: Introductionmentioning

confidence: 99%

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In Vitro Fertilization and Development of OPU Derived Goat and Sheep Oocytes

Cox

Alfaro

2007

Reprod Domestic Animals

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The recent upgrade in IVP technology seen in cattle can be adapted to embryo production in small ruminants to overcome limitations exhibited by surgical procedures on preserving the reproductive potential of donors and the efficiency of embryo production. The aim of the present study was to assess the current procedures used in cattle for the production of IVP embryos in goats and sheep based on laparoscopic-aided ovum pick-up (LOPU) supplied oocytes. Sexually matured goat and sheep donors were treated during the breeding season with FSH and subjected to laparoscopic-guided follicular puncture under general anaesthesia. The collected cumulus-oocyte complexes were matured in medium 199 and fertilized by frozen-thawed spermatozoa using Talp medium supplemented with heparin and oestrus-sheep serum. Cleaved ova were either cultured in sheep in vitro fertilization medium plus amino acids or transferred to sheep oviducts. Blastocyst rate, hatching rate and development rate up to term were used as markers of embryo function. The results obtained for goat and sheep involving 30 and 35 donors respectively (10 and 9 LOPU sessions) were 81.2% and 85.2% of oocyte collection rate; 88.3% and 98.6% oocyte incubation rate; 85.6% and 76.0% fertilization rate; 82.4% and 93.4% of cleavage rate; 50.0% and 61.5% IVP blastocyst rate; 42.1% and 45.5% blastocyst rate in oviducts; 73.0% and 66.7% embryo survival up to term, respectively. The results are comparable to those obtained in small ruminants and in bovines suggesting that requirements for embryo production and development are similar.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In Vitro Fertilization and Development of OPU Derived Goat and Sheep Oocytes

Cox

Alfaro

2007

Reprod Domestic Animals

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“…Ultrasound-guided interventional techniques are used commercially in cattle to facilitate follicular aspiration and embryo transfer [42]. This technology has also been applied in mares [43], goats [44] and buffalo [45]. Routinely performed diagnostic sampling techniques, including fluid aspiration, fine needle aspirates and core biopsies are common components of clinical diagnostic workups in many species [20].…”

Section: Guided Needle Placementmentioning

confidence: 99%

Advances in ultrasonography and its applications in domestic ruminants and other farm animals reproduction

Medan

El‐Aty

2010

Journal of Advanced Research

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Ultrasound techniques are becoming increasingly important in animal reproduction, offering both a mean of diagnosis and a useful therapeutic tool. Accordingly, understanding the use of ultrasound technology is critical in contemporary animal sciences, since ultrasound examinations are now a routine component of diagnostic workups in reproduction. Ultrasound technology offers the assessment of pregnancy status and foetal viability early post breeding in order to identify animals that fail to conceive, improving reproductive efficiency; early identification of animals carrying twin foetuses, allowing for the implementation of differential management strategies to avoid the negative effects of twinning on general health of the mother animal and also at parturition; and the visualisation of ovarian and uterine pathologies not accurately detected via rectal palpation, allowing appropriate therapies to be implemented. In addition, determination of foetal sex in utero can be done by ultrasonography. The new information that has been generated through ultrasound has thrown light on therapeutic uses, thereby opening up new areas for research. Moreover, ultrasound-guided interventional techniques can be used for diagnostic or therapeutic purposes. In this review, advances and applications of ultrasonography in domestic animal reproduction are reviewed.

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“…Laparoscopy has been successfully performed in small ruminants for a variety of applications including intrauterine artificial insemination (Gourley and Riese, 1990), ovum collection (Graff et al, 1999;Baldassarre et al, 2002), nephrectomy (Sanchez-Margallo et al, 2012), cystotomy (Franz et al, 2008), and ovariectomy (Teixeira et al, 2011). Advantages include less surgical trauma, improved cosmetic results, better intra-operative visualization, and decreased surgical time, patient convalescence and pain, all of which increase efficiency and minimize medical costs (Gourley and Riese, 1990;Baldassarre et al, 2002;SanchezMargallo et al, 2012).…”

Section: Introductionmentioning

confidence: 99%