Evidence map›Paper›PMID 31064400›Full record

ArticleParasites & vectors2019

Darkness increases the population growth rate of the poultry red mite Dermanyssus gallinae.

Chuanwen Wang, Yuyun Ma, Yu Huang, Shanchun Su, Lianyu Wang, Yanyan Sun, Qiang Wan, Hao Li, Shudong Zhang, Øivind Øines and 1 more

Abstract read
In one paragraph

Article in Parasites & vectors, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Challenges ofInsects · 2025
    Review
  2. Review
  3. Article
  4. Evaluation of theFrontiers in veterinary science · 2022
    Article
  5. Article
  6. Parasitic Mite Fauna in Asian Poultry Farming Systems.Frontiers in veterinary science · 2020
    Review
  7. 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

11 authors.

Chuanwen WangCollege of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
Yuyun MaCollege of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
Yu HuangCollege of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
Shanchun SuCollege of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
Lianyu WangAnimal Disease Prevention and Control Centre of Pinggu District, Beijing, 101200, China.
Yanyan SunAnimal Disease Prevention and Control Centre of Pinggu District, Beijing, 101200, China.
Qiang WanCollege of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
Hao LiCollege of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
Shudong ZhangCollege of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
Øivind ØinesNorwegian Veterinary Institute, PO Box 750, Oslo, Norway. oivind.oines@vetinst.no.
Baoliang PanCollege of Veterinary Medicine, China Agricultural University, Beijing, 100193, China. baoliang@cau.edu.cn.

Funding

National Key Research and Development Program of China 2017YFD0501200National Natural Science Foundation of China 31873008
6 · The paper itself

Abstract

backgroundThe poultry red mite (PRM), Dermanyssus gallinae, is one of the most economically deleterious ectoparasites affecting egg-laying hens worldwide. It may be possible to control D. gallinae populations by manipulating lighting regimes within poultry units. However, no studies have clearly shown the effects of darkness on the population growth rate of D. gallinae.

methodsThe effect of darkness on the population growth rate of D. gallinae was investigated, together with the first description of the molecular identity of the mite from China. Mite variables under two lighting regimens (1:23 h L:D and 12:12 h L:D) were compared, including number of mites and eggs, survival and feeding rates, engorgement, oviposition, hatchability and the life-cycle of D. gallinae.

resultsThe results showed that the number of mites (13,763 ± 956) and eggs (5424 ± 317) in the rearing system with prolonged darkness of 1:23 h L:D at 4th week were 2.4- and 3.6-fold higher than those under a conventional lighting regimen of 12:12 h L:D, respectively. The feeding rates of mites under prolonged darkness ranged from 36.7 ± 1.1% to 52.0 ± 7.0%, which were significantly higher than those under conventional lighting regimen (ranging from 22.6 ± 1.9% to 37.3 ± 1.6%). The mean weight of engorged females (0.26 ± 0.01 mg) and the mean number of eggs per female (on average 5.87 ± 0.36) under prolonged darkness were significantly higher than those under conventional lighting regimen (0.22 ± 0.01 mg and 3.62 ± 0.31, respectively). However, the survival rate ranging from 98.07 ± 0.10% to 98.93 ± 0.19%, hatchability of 97.93 ± 0.01% and the life-cycle of D. gallinae (9 days) was not affected by the lighting period.

conclusionsOur findings demonstrated that prolonged darkness significantly promoted the proliferation levels of D. gallinae, resulting in increased number of mites and eggs in the rearing system. The promoted population growth of D. gallinae was found to be related to the increased feeding rate, engorgement level and oviposition level of mites under prolonged darkness. The egg hatchability, the survival rates and the duration of life-cycle of D. gallinae were not affected by the light regimes.

Indexed as

DarknessAnimalsChickensDNA, IntergenicElectron Transport Complex IVFeeding BehaviorFemaleLife Cycle StagesLightMite InfestationsMitesOvipositionPhotoperiodPopulation GrowthPoultry DiseasesReproductionDNA, IntergenicElectron Transport Complex IVDarknessDermanyssus gallinaePoultry red miteReproduction

Identifiers

PMID31064400
PMCPMC6505187

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Registered trials

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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.