Supplementation with sunflower seeds in beef cattle did not impact on oocyte and in vitro embryo production

2018 ◽  
Vol 53 (3) ◽  
pp. 801-808
Author(s):  
AL Baltazar ◽  
GM de Mattos ◽  
BM Ropelli ◽  
SMG Firetti ◽  
C Castilho ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Sunflower Seeds ◽  
Embryo Production ◽  
In Vitro Embryo Production

scholarly journals Laparoscopic Ovum Pick-Up Followed by In Vitro Embryo Production and Transfer in Assisted Breeding Programs for Ruminants

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 216
Author(s):  
Hernan Baldassarre
Keyword(s):  
Pregnancy Rate ◽  
Commercial Application ◽  
Embryo Production ◽  
Breeding Programs ◽  
Sheep And Goats ◽  
Embryo Recovery ◽  
Marker Selection ◽  
Holstein Calves ◽  
In Vitro Embryo Production

The potential of laparoscopic ovum pick-up (LOPU) followed by in vitro embryo production (IVEP) as a tool for accelerated genetic programs in ruminants is reviewed in this article. In sheep and goats, the LOPU-IVEP platform offers the possibility of producing more offspring from elite females, as the procedure is minimally invasive and can be repeated more times and more frequently in the same animals compared with conventional surgical embryo recovery. On average, ~10 and ~14 viable oocytes are recovered by LOPU from sheep and goats, respectively, which results in 3–5 transferable embryos and >50% pregnancy rate after transfer. LOPU-IVEP has also been applied to prepubertal ruminants of 2–6 months of age, including bovine and buffalo calves. In dairy cattle, the technology has gained momentum in the past few years stemming from the development of genetic marker selection that has allowed predicting the production phenotype of dairy females from shortly after birth. In Holstein calves, we obtained an average of ~22 viable oocytes and ~20% transferable blastocyst rate, followed by >50% pregnancy rate after transfer, declaring the platform ready for commercial application. The present and future of this technology are discussed with a focus on improvements and research needed.

Selection of stallions for in vitro embryo production by ICSI in a commercial program

2012 ◽  
Vol 32 (7) ◽  
pp. 409 ◽  
Author(s):  
C. Herrera ◽  
P. Dufourq ◽  
M. Freije ◽  
I. Morikawa ◽  
J.E. Centeno ◽  
...  
Keyword(s):  
Embryo Production ◽  
Commercial Program ◽  
In Vitro Embryo Production ◽  
Selection Of

In vitro embryo production after microinjection and ovarian dynamics following transvaginal follicular oocyte aspiration

1995 ◽  
Vol 43 (6) ◽  
pp. 1129-1139 ◽  
Author(s):  
J.R. Gibbons ◽  
R.L. Krisher ◽  
S.K. Carlin ◽  
R.E. Pearson ◽  
F.C. Gwazdauskas
Keyword(s):  
Embryo Production ◽  
In Vitro Embryo Production ◽  
Oocyte Aspiration ◽  
Ovarian Dynamics

Cleavage Rate of in vitro Matured Oocytes Fertilized with Conventional Semen in Buffaloes

2021 ◽  
Author(s):  
M.H. Pitroda ◽  
K.P. Khillare ◽  
M.B. Amle ◽  
M.D. Meshram ◽  
A.B. Mali ◽  
...  
Keyword(s):  
Fertilization Rate ◽  
Cleavage Rate ◽  
Embryo Production ◽  
Quick Recovery ◽  
Slaughter House ◽  
Maturation Rate ◽  
Aspiration Technique ◽  
Current Scenario ◽  
In Vitro Embryo Production

Background: In vitro embryo production in buffaloes has gained much importance in this current scenario due to ever increasing population and high demand of milk and meat. Slaughter house derived bubaline ovaries are a cheap and abundant source of cumulus oocyte complexes.Methods: Oocytes from the buffalo ovarian follicles were recovered by aspiration technique as it facilitates quick recovery. Total 155 ovaries were used in the present study. Surface follicles were measured using vernier calliper and categorized into three groups viz. less than 3 mm, 3-5 mm and greater than 5 mm based on follicular diameter and oocytes were processed for IVM, IVF and IVC using conventional non sorted semen.Result: Overall percentage of small, medium and large follicles in the ovaries were recorded as 16.29 ± 0.94%, 8.14±0.60%, 5.35 ± 0.76%, respectively. Overall recovery rate of COCs was 38%. The percentage of these oocytes were 16.74% (A), 15.25% (B), 25.26% (C), 18.33% (D) and 29.87% (E) respectively. Maturation rate of oocytes were 81.96 ± 2.70%. Fertilization rate was 74.98 ± 3.87%, Cleavage rate % was 40.84±2.51% and Blastocyst percentage was 21.57±1.75% respectively. Application of in vitro embryo production technique using slaughter house ovaries can salvage the genetic potential of bubaline species.

PSX-A-10 Late-Breaking: Effects of paternal high energy diets on blastocyst development during in vitro embryo production in the bovine

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 363-363
Author(s):  
Dylan B Davis ◽  
Zachary Seekford ◽  
Mackenzie Dickson ◽  
Lucas Gonçalves ◽  
Samir Burato ◽  
...  
Keyword(s):  
High Gain ◽  
High Energy ◽  
Carcass Composition ◽  
Adaptation Period ◽  
Blastocyst Development ◽  
Embryo Production ◽  
Ad Libitum ◽  
In Vitro Embryo Production ◽  
To Receive

Abstract The objective of this study was to evaluate the effect of paternal high energy diets on blastocyst development during in vitro embryo production (IVP). Eight sires were stratified by body weight (initial BW = 946 ± 85 kg) and randomly assigned to the same diet (NEm = 2.10, NEg = 1.44, CP = 14.1%, NDF = 16.6%, DM basis) fed at two different inclusion rates while having ad libitum access to bermudagrass hay (NEm = 1.02, NEg = 0.45, CP = 10.2%, NDF = 71.6). After a 10-d adaptation period, sires were individually fed to receive 0.5% (MAINT) or 1.25% [High gain (HG)] of their BW daily for 67 days. At the end of the feeding period, semen was collected through electroejaculation and frozen. Antral follicles were aspirated from ovaries obtained from a slaughterhouse and utilized for IVP in 4 independent replicates (n = 2,227 total oocytes). Cleavage rates were evaluated 48 h after fertilization and blastocyst development rates were evaluated after 7 days of embryo culture. The proposed treatments successfully induced differences in BW gain (P < 0.01; 2.28 vs -0.04 kg/d) and carcass composition (Rump fat: 1.63 vs. 0.41 cm, P = 0.08; Rib fat: 1.06 vs. 0.41 cm, P = 0.02; intramuscular fat: 3.5 vs. 3.0%, P = 0.36; for HG vs. MAINT sires, respectively). There was a significant decrease in cleavage rates (69.9 ± 2.5 vs. 65.0 ± 2.7; P < 0.04), blastocyst rate as a percentage of oocytes (16.7 ± 2.9 vs. 11.5 ± 2.1; P < 0.01), and blastocyst rates as a percentage of cleaved structures (24.1 ± 3.8 vs. 11.5 ± 2.1; P < 0.01) for HG compared with MAINT sires. In conclusion, sires fed diets that induce highly anabolic conditions had impaired blastocyst development compared to sires fed a maintenance diet.

scholarly journals Acceptable microorganisms concentration in a semen sample for in vitro embryo production

2006 ◽  
Vol 37 (4) ◽  
pp. 571-572 ◽  
Author(s):  
Magali D'Angelo ◽  
Danielle L. Pavão ◽  
Gisele Martins Melo ◽  
Natali Rojas ◽  
Rosimeire Joaquim Souza ◽  
...  
Keyword(s):  
Semen Sample ◽  
Embryo Production ◽  
In Vitro Embryo Production
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