Evidence map›Paper›PMID 35324845›Full record

ReviewVeterinary sciences2022

Towards Improving the Outcomes of Multiple Ovulation and Embryo Transfer in Sheep, with Particular Focus on Donor Superovulation.

Sami Ullah Khan, Muhammad Ameen Jamal, Yanhua Su, Hong-Jiang Wei, Yubo Qing, Wenmin Cheng

Open access · goldAbstract readReview
In one paragraph

Review in Veterinary sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
6.8field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Cross-Species Insights intoAntioxidants (Basel, Switzerland) · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Factors affecting superovulation induction in goats (Frontiers in veterinary science · 2023
    Review
  9. Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Sami Ullah KhanFaculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China.
Muhammad Ameen JamalFaculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China.ORCID 0000-0001-9575-5999
Yanhua SuYunnan Key Laboratory of Porcine Gene Editing and Xenotransplantation, Yunnan Agricultural University, Kunming 650201, China.
Hong-Jiang WeiYunnan Key Laboratory of Porcine Gene Editing and Xenotransplantation, Yunnan Agricultural University, Kunming 650201, China.ORCID 0000-0002-5663-1093
Yubo QingYunnan Key Laboratory of Porcine Gene Editing and Xenotransplantation, Yunnan Agricultural University, Kunming 650201, China.
Wenmin ChengFaculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China.
Yunnan Agricultural University · CN

Funding

National Key R&D Program of China 2019YFA0110700the Major Science and Technology Project of Yunnan Province 202102AA310047
6 · The paper itself

Abstract

Considerable improvements in sheep multiple ovulation and embryo transfer (MOET)protocols have been made; however, unlike for cattle, MOET is poorly developed in sheep, and thus has not been broadly applicable as a routine procedure. The tightly folded nature of the ewe cervix, the inconsistent ovarian response to various superovulatory treatments, and the requirement of labor to handle animals, particularly during large-scale production, has limited the implementation of successful MOET in sheep. Moreover, several extrinsic factors (e.g., sources, the purity of gonadotrophins and their administration) and intrinsic factors (e.g., breed, age, nutrition, reproductive status) severely limit the practicability of MOET in sheep and other domestic animals. In this review, we summarize the effects of different superovulatory protocols, and their respective ovarian responses, in terms of ovulation rate, and embryo recovery and transfer. Furthermore, various strategies, such as inhibin immunization, conventional superovulation protocols, and melatonin implants for improving the ovarian response, are discussed in detail. Other reproductive techniques and their relative advantages and disadvantages, such as artificial insemination (AI), and donor embryo recovery and transfer to the recipient through different procedures, which must be taken into consideration for achieving satisfactory results during any MOET program in sheep, are also summarized in this article.

Indexed as

embryo recovery and transferhormonal protocolsintrinsic and extrinsic factorsovine

Identifiers

PMID35324845
PMCPMC8953989
OpenAlexW4220940384

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.