Evidence map›Paper›PMID 35011116›Full record

ArticleAnimals : an open access journal from MDPI2021

Abortion and Lamb Mortality between Pregnancy Scanning and Lamb Marking for Maiden Ewes in Southern Australia.

Thomas Clune, Amy Lockwood, Serina Hancock, Andrew N Thompson, Sue Beetson, Angus J D Campbell, Elsa Glanville, Daniel Brookes, Colin Trengove, Ryan O'Handley and 2 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Animals : an open access journal from MDPI, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Association between Polymorphism in the Janus Kinase 2 (Animals : an open access journal from MDPI · 2023
    Article
  5. Breeding Ewe Lambs: An Australasian Perspective.Animals : an open access journal from MDPI · 2022
    Review
  6. Heritability and Genetic Parameters for Semen Traits in Australian Sheep.Animals : an open access journal from MDPI · 2022
    Article
  7. Article
  8. Article
  9. 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

12 authors.

Thomas CluneCentre for Animal Production and Health, Food Futures Institute, Murdoch University, South Street, Murdoch, WA 6150, Australia.
Amy LockwoodCentre for Animal Production and Health, Food Futures Institute, Murdoch University, South Street, Murdoch, WA 6150, Australia.
Serina HancockCentre for Animal Production and Health, Food Futures Institute, Murdoch University, South Street, Murdoch, WA 6150, Australia.ORCID 0000-0002-4115-4642
Andrew N ThompsonCentre for Animal Production and Health, Food Futures Institute, Murdoch University, South Street, Murdoch, WA 6150, Australia.ORCID 0000-0001-7121-7459
Sue BeetsonCentre for Animal Production and Health, Food Futures Institute, Murdoch University, South Street, Murdoch, WA 6150, Australia.
Angus J D CampbellNossal Institute for Global Health, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC 3010, Australia.ORCID 0000-0002-3907-5048
Elsa GlanvilleMackinnon Project, Faculty of Veterinary & Agricultural Sciences, University of Melbourne, Werribee, VIC 3030, Australia.
Daniel BrookesMackinnon Project, Faculty of Veterinary & Agricultural Sciences, University of Melbourne, Werribee, VIC 3030, Australia.
Colin TrengoveSchool of Animal and Veterinary Science, University of Adelaide, Roseworthy, SA 5371, Australia.
Ryan O'HandleySchool of Animal and Veterinary Science, University of Adelaide, Roseworthy, SA 5371, Australia.
Gavin Kearney36 Payne Road, Hamilton, VIC 3300, Australia.
Caroline JacobsonCentre for Animal Production and Health, Food Futures Institute, Murdoch University, South Street, Murdoch, WA 6150, Australia.ORCID 0000-0001-9427-1941

Funding

Meat & Livestock Australia B.AHE.0318
6 · The paper itself

Abstract

The contribution of abortions to the overall mortality of lambs born to maiden (primiparous) ewes in Australia remains unclear. This cohort study aimed to quantify abortion and lamb mortality for ewe lambs and maiden Merino two-tooth ewes. Lamb mortality from pregnancy scanning to marking were determined for 19 ewe lamb and 11 Merino two-tooth ewe flocks across southern Australia. Average lamb mortality from scanning to marking was 35.8% (range 14.3-71.1%) for the ewe lambs and 29.4% (range 19.7-52.7%) for the two-tooth ewes. Mid-pregnancy abortion was detected in 5.7% of ewes (range 0-50%) in the ewe lamb flocks and 0.9% of ewes (range 0-4.4%) in the two-tooth ewe flocks. Mid-pregnancy abortion affecting ≥2% of ewes was observed in 6/19 ewe lamb flocks and 2/11 two-tooth ewe flocks. Lamb mortality from birth to marking represented the greatest contributor to foetal and lamb mortality after scanning, but mid-pregnancy abortion was an important contributor to lamb mortality in some ewe lamb flocks. Variability between the flocks indicates scope to improve the overall reproductive performance for maiden ewes by reducing foetal and lamb losses. Addressing mid-pregnancy abortion may improve the reproductive performance in some flocks.

Indexed as

ewe lambhoggetin utero losspregnancy lossprimiparousreproductionsheepyearling

Identifiers

PMID35011116
PMCPMC8749747

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.