Evidence map›Paper›PMID 37684610›Full record

ArticleBMC veterinary research2023

Effects of dietary Lactobacillus rhamnosus GG supplementation on the production performance, egg quality, eggshell ultrastructure, and lipid metabolism of late-phase laying hens.

Liming Liu, Guoqing Zhang, Ge Qu, Bin Liu, Xiufeng Zhang, Gaoqian Li, Ningyi Jin, Chang Li, Jieying Bai, Cuiqing Zhao

Abstract read
In one paragraph

Article in BMC veterinary research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

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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

10 authors.

Liming LiuCollege of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, 132101, Jilin, China.
Guoqing ZhangCollege of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, 132101, Jilin, China.
Ge QuCollege of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, 132101, Jilin, China.
Bin LiuCollege of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, 132101, Jilin, China.
Xiufeng ZhangCollege of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, 132101, Jilin, China.
Gaoqian LiCollege of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, 132101, Jilin, China.
Ningyi JinResearch Unit of Key Technologies for the Prevention and Control of Virus Zoonoses, Changchun Veterinary Research Institute, Chinese Academy of Medical Sciences, Chinese Academy of Agricultural Sciences, Changchun, 130122, Jilin, China.
Chang LiResearch Unit of Key Technologies for the Prevention and Control of Virus Zoonoses, Changchun Veterinary Research Institute, Chinese Academy of Medical Sciences, Chinese Academy of Agricultural Sciences, Changchun, 130122, Jilin, China.
Jieying BaiJilin Genet-Med Biotechnology Co., Ltd, Changchun, 130122, Jilin, China.
Cuiqing ZhaoCollege of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, 132101, Jilin, China. yuqing53@163.com.

Funding

Science and Technology Research Project of the Education Department of Jilin Province JJKH20210412KJ
6 · The paper itself

Abstract

backgroundToward the late phase of laying, the production performance of laying hens decreases, egg quality deteriorates, lipid metabolism weakens, and hepatic lipid accumulation is exacerbated. Probiotics as an alternative to antimicrobials have been employed in poultry-related industries. Lactobacillus rhamnosus GG (LGG) is currently the most researched and clinically validated probiotic, showing promising effects in multiple application areas. However, few studies have been conducted on livestock (including poultry) production.

resultsCompared with the CON group, the feed conversion ratio (P < 0.01) declined significantly in the LGG group. Eggshell strength (P < 0.001) and eggshell thickness (P < 0.001) were significantly increased by supplementation with LGG in the diet. The height (P < 0.001) and proportion (P < 0.05) of the effective layer and the mammillary knob density (P < 0.01) in the eggshell ultrastructure of the LGG group increased significantly, while the mammillary layer (P < 0.05) and knob width (P < 0.01) decreased significantly. The LGG-treated hens had significantly lower serum concentrations of low-density lipoprotein (P < 0.05), free fatty acids (P < 0.01), and liver triglyceride (P < 0.05) levels than those in the CON group.

conclusionsLGG supplementation significantly decreases the feed conversion ratio, improves eggshell quality by altering the ultrastructure, and improves lipid metabolism in the late laying period.

Indexed as

Lacticaseibacillus rhamnosusProbioticsAnimalsChickensEgg ShellFemaleLipid MetabolismOvumEggshell qualityEggshell ultrastructureLactobacillus rhamnosus GGLaying hensLipid metabolismProduction performance

Identifiers

PMID37684610
PMCPMC10486122

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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.