Evidence map›Paper›PMID 33415583›Full record

ArticleBiological trace element research2021

Dietary Copper Supplementation Increases Growth Performance by Increasing Feed Intake, Digestibility, and Antioxidant Activity in Rex Rabbits.

Fan Li, Lei Liu, Xiaoyang Chen, Bin Zhang, Fuchang Li

Abstract readRandomized Controlled Trial, Veterinary
PubMed Publisher
In one paragraph

Article in Biological trace element research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

8 citing papers in PubMed, 16 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Fan LiCollege of Animal Science and Technology, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
Lei LiuCollege of Animal Science and Technology, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
Xiaoyang ChenCollege of Animal Science and Technology, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
Bin ZhangCollege of Animal Science and Technology, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
Fuchang LiCollege of Animal Science and Technology, Shandong Agricultural University, Tai'an, 271018, People's Republic of China. chlf@sdau.edu.cn.ORCID http://orcid.org/0000-0002-5670-8038
Shandong Agricultural University · CN

Funding

Modern Agri-industry Technology Research System CARS-43-B-1Natural Science Foundation of Shandong Province ZR2018MC025
6 · The paper itself

Abstract

Copper is often used as a growth promoter, at the same time copper is one of the most important essential trace elements for fur animals, especially Rex rabbits. However, too much copper added to the diet may harm animal health, and copper excreted in feces can pollute the environment. In this study, 3-month-old Rex rabbits were randomly divided into four groups and fed a basal diet containing 0, 30, 60, or 120 mg/kg Cu for 5 weeks. The diet supplemented with 30 mg/kg Cu significantly increased (P < 0.05) the average daily feed intake (ADFI) and the average daily gain (ADG) and also the activity of serum Cu-Zn (zinc) superoxide dismutase and the digestibility of ether extract. Supplemental Cu up to 120 mg/kg did not significantly adversely affect the Zn metabolism of growing Rex rabbits. Overall, the data in this study indicate that 30 mg/kg is the optimal level of Cu supplementation in the diet of growing Rex rabbits. The results will provide a reference to improve the breeding of Rex rabbits and possibly other animals. In follow-up studies, the amount of copper in the diet should be reduced as much as possible from the baseline of 30 mg/kg copper.

Indexed as

AntioxidantsCopperAnimal FeedAnimal Nutritional Physiological PhenomenaAnimalsDietDietary SupplementsEatingRabbitsAntioxidantsCopperBlood biochemistryDietary copper supplementGrowth performanceRex rabbitTissue mineral retention

Identifiers

PMID33415583
OpenAlexW3119460246

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.