Evidence map›Paper›PMID 33248603›Full record

ArticlePoultry science2020

Effects of supplementing natural astaxanthin from Haematococcus pluvialis to laying hens on egg quality during storage at 4°C and 25°C.

Nuo Heng, Shan Gao, Yong Guo, Yu Chen, Liang Wang, Xihui Sheng, Xiangguo Wang, Kai Xing, Longfei Xiao, Hemin Ni and 1 more

Abstract read
In one paragraph

Article in Poultry science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Carotenoid enrichment in eggs: From biochemistry perspective.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2023
    Review
  6. Rosehip (Antioxidants (Basel, Switzerland) · 2022
    Article
  7. Review
  8. Review
  9. Review
  10. 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

11 authors.

Nuo HengAnimal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Shan GaoAnimal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Yong GuoAnimal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Yu ChenDepartment of Livestock and Poultry Products Testing, Beijing General Station of Animal Husbandry, Beijing 100107, China.
Liang WangDepartment of Livestock and Poultry Products Testing, Beijing General Station of Animal Husbandry, Beijing 100107, China.
Xihui ShengAnimal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Xiangguo WangAnimal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Kai XingAnimal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Longfei XiaoAnimal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Hemin NiAnimal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Xiaolong QiAnimal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China. Electronic address: buaqxl@126.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The objective of this study was to evaluate the effects of different levels of dietary natural astaxanthin (ASTA) (from the microalga Haematococcus pluvialis) and storage at 4°C and 25°C on the quality of eggs from laying hens. Nongda No. 3 laying hens (n = 450) were randomly allocated to 1 of 5 dietary treatments. Each treatment had 6 replicates of 15 hens each. All birds were assigned to a corn-soybean meal-based diet containing 0, 20, 40, 80, or 160 mg/kg natural ASTA for 4 wk. A total of 540 eggs were collected at the end of the 4-week feeding trial. Sixty fresh eggs were collected and measured for egg quality within 24 h after collection. The other 480 eggs were used in a factorial arrangement with 5 dietary ASTA levels, 4 storage times, and 2 storage temperatures. During the 8-week storage period at 4°C and 25°C, egg quality measurements were performed every 2 wk on 12 eggs per treatment. No significant effects (P > 0.05) on yolk index, yolk pH, Haugh units, weight loss, or eggshell strength were observed with increasing concentrations of dietary ASTA. Yolk color darkened linearly with increasing dose of ASTA (P < 0.05). During storage of eggs, yolk index and Haugh units decreased significantly (P < 0.05), whereas yolk pH and weight loss increased (P < 0.05). An interaction was observed between dietary ASTA level and storage time on yolk index, yolk color, and Haugh units (P < 0.05). These results demonstrated that dietary ASTA from H. pluvialis delayed the decrease in yolk index and yolk color during storage at 4°C and 25°C. Therefore, we speculate that there may be a combined effect of dietary ASTA level and storage time on egg internal quality; this information may provide additional options by which to extend the storage time of eggs.

Indexed as

ChickensDietary SupplementsEggsOvumTemperatureAnimal FeedAnimalsChlorophyceaeDietEgg YolkFemaleFood StorageXanthophyllsastaxanthineXanthophyllschicken eggegg qualitynatural astaxanthinstorage temperature

Identifiers

PMID33248603
PMCPMC7704997

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.