Evidence map›Paper›PMID 40694100›Full record

ArticleInternational journal of biometeorology2025

Impacts of heat stress under oceanic climate on fertility and reproductive physiology of dairy cows subjected to hormonal synchronization.

E N Martínez, C Castillo, L Avendaño-Reyes, J Hernández, J L Benedito, A Rico, P Garcia, R Muiño

Abstract read
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In one paragraph

Article in International journal of biometeorology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

8 authors.

E N MartínezDepartament of Animal Pathology, Campus Terra-IBADER, University of Santiago de Compostela, Lugo, Spain.
C CastilloDepartament of Animal Pathology, Campus Terra-IBADER, University of Santiago de Compostela, Lugo, Spain.
L Avendaño-ReyesInstitute of Agricultural Sciences, Autonomous University of Baja California, Mexicali, Mexico.
J HernándezDepartament of Animal Pathology, Campus Terra-IBADER, University of Santiago de Compostela, Lugo, Spain. joaquin.hernandez@usc.es.ORCID http://orcid.org/0000-0002-2588-0089
J L BeneditoDepartament of Animal Pathology, Campus Terra-IBADER, University of Santiago de Compostela, Lugo, Spain.
A RicoMeira Veterinary Center, Galicia, Spain.
P GarciaDepartament of Animal Pathology, Campus Terra-IBADER, University of Santiago de Compostela, Lugo, Spain.
R MuiñoDepartament of Animal Pathology, Campus Terra-IBADER, University of Santiago de Compostela, Lugo, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Regions with oceanic climates are experiencing unprecedented climatic changes. This study assesses the presence of heat stress in these regions and its impact on reproductive in Holstein cows using the Temperature-Humidity Index (THI), a measure of thermal stress. Data was collected from 159 Holstein cows across experiments. Cows underwent a modified double-ovsynch synchronization protocol, while 96 cows were inseminated based on observed estrous. Cows were examined for body temperature, follicle and uterus examination, and serum progesterone concentrations to evaluate the impact of heat stress. The results of cows pregnancy rate in double-ovsynch synchronized cows were 48.5% and 43.3% in summer and winter seasons, respectively. While the pregnancy rate in non-synchronized cows were 29.5% and 32.7% in summer and winter season, respectively. Elevated THI levels (THI ≥ 72) have adversely effects on reproductive physiology, reduced estrous expression, decreased uterine blood flow, and altered progesterone concentrations. Mild heat stress during summer months in oceanic climate negatively impacted reproductive efficiency in dairy cows, for adaptive management strategies. The double-ovsynch protocol effectively stabilized fertility across seasons, demonstrating its value in improving reproductive outcomes under varying thermal conditions.

Indexed as

Estrus SynchronizationFertilityHeat-Shock ResponseHeat Stress DisordersAnimalsCattleClimateClimate ChangeFemaleHumidityPregnancyProgesteroneReproductionSeasonsUterusProgesteroneDairy cattleHeat stressModified double-ovsynchOceanic climateTemperature-humidity index

Identifiers

PMID40694100
PMCPMC12479719

What OpenQuestion holds

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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.