Evidence map›Paper›PMID 36326798›Full record

ArticleJournal of animal science2022

Castration alters the cecal microbiota and inhibits growth in Holstein cattle.

Zemin Li, Jinping Shi, Yu Lei, Jianping Wu, Rui Zhang, Xiao Zhang, Li Jia, Ying Wang, Yue Ma, Pengjia He and 5 more

Open access · greenAbstract readRandomized Controlled Trial, Veterinary
In one paragraph

Article in Journal of animal science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
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  7. Article
  8. Understanding the Diversity and Roles of the Ruminal Microbiome.Journal of microbiology (Seoul, Korea) · 2024
    Review
  9. Article
  10. Article
  11. 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

15 authors at 3 institutions in 1 country.

Zemin LiCollege of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.
Jinping ShiCollege of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.
Yu LeiKey Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China.
Jianping WuInstitute of Rural Development, Northwest Normal University, Lanzhou, China.
Rui ZhangCollege of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.
Xiao ZhangCollege of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.
Li JiaCollege of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.
Ying WangCollege of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.
Yue MaCollege of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.
Pengjia HeCollege of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.
Yannan MaInstitute of Rural Development, Northwest Normal University, Lanzhou, China.
Qiang ChengJingchuan Xukang Food Co., Ltd, Pingliang, China.
Zhao ZhangGansu Huarui Agriculture Co., Ltd, Zhangye, China.
Ke ZhangKey Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China.ORCID 0000-0002-2392-1545
Zhaomin LeiCollege of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.
Gansu Agricultural University · CNNorthwest A&F University · CNNorthwest Normal University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To determine the effects of castration on growth performance, serum hormone levels, cecal microbiota composition, and metabolites in cattle. A total of 18 Holstein bulls and steers were divided into bull and steer groups and randomly assigned to 3 pens (3 cattle per pen, and each cattle were separated by a fence) to determine the average daily gain (ADG), daily dry matter intake (DMI), and feed efficiency (G/F). After the finishing trial, six cattle per group were randomly slaughtered. Serum was collected to measure the hormone concentration, and the cecal content was collected to measure the pH, short-chain fatty acids, and digestive enzyme activities. Metagenome sequencing and untargeted metabolomics were used to investigate the microbiota composition, functional profiles, and differential metabolites of the cecal contents. We found that castration significantly decreased ADG, DMI, and G/F in cattle (P < 0.05). The serum testosterone, thyroxine, growth hormone (P < 0.05), and triiodothyronine (P < 0.01) concentrations significantly decreased in the steer group when compared to those of the bull group. The activities of cellulase, xylanase, pectinase, and β-glucosidase (P < 0.05) significantly decreased in the steer group, whereas the activities of lipase and α-amylase significantly increased. Moreover, castration significantly decreased the relative abundance of Ruminococcaceae_bacterium, Treponema_porcinum, Oscillibacter_sp. (P < 0.05), and Alistipes_senegalensis (P < 0.01), whereas the relative abundance of Phocaeicola_plebeius (P < 0.05) was significantly increased. Also, the relative abundance of Phocaeicola_plebeius was negatively correlated with testosterone levels, and the function of the cecal microbiota was enriched in the GH29 and GH97 families in the steer group. Metabolomic analysis indicated that castration increased the levels of L-valine, L-phenylalanine, L-aspartic acid, L-isoleucine, L-lysine, methionine, L-glutamic acid, and L-leucine, while decreasing the levels of α-ketoglutaric acid through the 2-oxocarboxylic acid metabolism pathway. In addition, α-ketoglutaric acid was negatively correlated with Oscillibacter_sp. (P < 0.01). Overall, castration can inhibit cattle growth by altering the composition of the cecal microbiota. Therefore, this study provides a theoretical and practical basis for improving the growth performance of steers.

Indexed as

Animal FeedKetoglutaric AcidsAnimalsBody CompositionCattleDietMaleMethionineOrchiectomyTestosteroneKetoglutaric AcidsMethionineTestosteronecastrationcecalHolstein bullmetabolomemicrobiome

Identifiers

PMID36326798
PMCPMC9733532
OpenAlexW4308054761

What OpenQuestion holds

Textmetadata
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.