ArticleVeterinary medicine and science2022
Ovarian response to P4-PGF-FSH treatment in Suffolk sheep and P4-PGF-PMSG synchronization in cross-bred ewes, for IVD and ET protocol.
Article in Veterinary medicine and science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 16 citations in OpenAlex.
- Editorial: Reproductive biotechnologies and challenges in their application, volume II.Frontiers in veterinary science · 2026Article
- Update on direct embryo transfer in sheep: hatched blastocysts increase conception rates.Frontiers in veterinary science · 2026Article
- An Insight into Differentially Expressed Genes and MicroRNAs in the Pituitary Glands of the Two Estrous Phases of Sheep with DifferentAnimals : an open access journal from MDPI · 2025Article
- Editorial: Reproductive biotechnologies and challenges in their application.Frontiers in veterinary science · 2025Article
- DIA-Based Proteomic Analysis Reveals MYOZ2 as a Key Protein Affecting Muscle Growth and Development in Hybrid Sheep.International journal of molecular sciences · 2024Article
- Metabolomics analysis of the effect of GnRH on the pregnancy rate of ewes with estrus synchronization scheme based on progesterone.Frontiers in veterinary science · 2024Article
- Evaluation of the efficiency of estrus synchronization protocols combined with natural service and ultrasonography on ewe reproductive performance during non-breeding season.Iranian journal of veterinary research · 2024Article
- Cryopreservation and Transfer of Sheep Embryos Recovered at Different Stages of Development and Cryopreserved Using Different Techniques.Animals : an open access journal from MDPI · 2023Article
- Upgrading the fixed-time artificial insemination (FTAI) protocol in Romanian buffaloes.Frontiers in veterinary science · 2023Article
- Ovarian response to P4-PGF-FSH treatment in Suffolk sheep and P4-PGF-PMSG synchronization in cross-bred ewes, for IVD and ET protocol.Veterinary medicine and science · 2022Article
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Authors and funding
4 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe success of an embryo transfer protocol in sheep depends on many factors, but the choice of drugs for the desired superovulation as well as the conception rate (CR) are most essential. Reproductive activity in sheep is characterized by a seasonality influenced by several factors such as photoperiod, latitude, temperature, nutrition and breed. Reproductive seasonality and nutritional condition are the main factors that influence embryo production in sheep. In sheep, some anatomical peculiarities limit the application of traditional reproductive biotechnologies used in cattle.
objectivesThe aim of this study was to conclude on the effectiveness of a wider on farm in vivo embryo transfer development programme in Suffolk sheep by streamlining hormone therapies and optimizing technique.
methodsA total number of 60 sheep and three rams were included in this study, divided into two groups (receptors and donors). Donor Suffolk sheep were treated for superovulation using the P4-PGF-FSH multiple ovulation embryo transfer (MOET) protocol, while the cross-bred recipients' group was synchronized with P4-PGF-PMSG.
resultsOn the first day after superovulation, all ovaries had more than five dominant follicles, while corpora lutea were later observed in 83.3% sheep. The recovery rate was 83.3%, while 72.9% embryos were transferable. Embryos were transferred directly into recipients. Fertility after 30 days was 68.57%, lambing rate was 91.6% and CR was 62.85%. This study showed that veterinary drugs (P4, FSH, LH, PMSG, PGF) used for superovulation optimized by us were capable of producing by this improved technique the optimization of the reproduction indices at embryo-transfer (ET) and to be able to be used successfully.
conclusionsThe application of an MOET protocol has a positive effect in the production of in vivo embryo production (IVD) embryos in Suffolk sheep and can guarantee the success of embryo transfer activity to ewes with lower genetic merit. Our research aimed at representing a model for sheep farms for a rapid improvement of productive traits.
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