Evidence map›Paper›PMID 42736196›Full record

ArticlePoultry science2026

Effects of graded dietary levels of microalgae on growth performance, fatty acid composition, and meat quality in broilers.

Jan Berend Lingens, Dana-Carina Schubert, Svenja Starke, Carsten Krischek, Christian Visscher, Amr Abd El-Wahab

Abstract read
In one paragraph

Article in Poultry science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Jan Berend LingensInstitute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany. Electronic address: jan.berend.lingens@tiho-hannover.de.
Dana-Carina SchubertInstitute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany.
Svenja StarkeMicroganic GmbH, Melle, Germany. Electronic address: svenja.starke@microganic.de.
Carsten KrischekInstitute for Food Quality and Safety, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany. Electronic address: carsten.krischek@tiho-hannover.de.
Christian VisscherInstitute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany. Electronic address: christian.visscher@tiho-hannover.de.
Amr Abd El-WahabInstitute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany; Nutrition and Clinical Nutrition Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt. Electronic address: amr.abd.el-wahab@tiho-hannover.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigated the dose-dependent effects of two microalgae, Chlorella vulgaris and Schizochytrium limacinum, on broiler performance, health parameters, and product quality. A total of 280 mixed-sex Ross 308 broilers were randomly allotted to seven dietary treatments (five replicates, eight birds/replicate) for 35 days. A control group (CON) received a basal diet without algae. Three groups received the basal diet supplemented with Chlorella vulgaris at 0.5% (C0.5), 1.0% (C1.0), or 2.0% (C2.0), and three groups received Schizochytrium limacinum at 0.25% (S0.25), 0.5% (S0.5), or 1.0% (S1.0). Feed intake, body weight, foot pad health, intestinal morphology, and serum immunology were monitored. At day 36, birds were sampled for serum and liver fatty acid analysis and meat quality assessment. Final body weight and average daily gain were significantly higher (p < 0.05) in C0.5 (2526 g; 71.0 g/d) than in CON (2230 g; 62.5 g/d), a 13.3% improvement. Schizochytrium limacinum supplementation profoundly and dose-dependently altered fatty acid profiles: serum docosahexaenoic acid (DHA) was nearly nine-fold higher in S1.0 (161 µg/mL) than in CON (18.3 µg/mL), while arachidonic acid was lower (138 vs. 206 µg/mL). Liver DHA showed a similar pattern (6.21 vs. 0.80 g/kg dry matter). The S0.5 group showed enhanced humoral immune response to Newcastle Disease Virus vaccination (100% vs. 66.7% seropositivity in CON). Breast meat from C2.0 exhibited significantly higher yellowness (b*: 17.0 vs. 6.50 in CON), attributed to carotenoid deposition. Foot pad health and intestinal morphology were unaffected across treatments. In conclusion, low-dose Chlorella vulgaris (0.5%) improved growth performance, while Schizochytrium limacinum efficiently enriched tissues with omega-3 fatty acids in a dose-dependent manner. These findings demonstrate distinct and complementary applications of these microalgae as functional feed ingredients for targeted improvements in poultry production and product quality.

Indexed as

Body weightBreast muscle qualityBroilerFatty acidsMicroalgae

Identifiers

PMID42736196
PMCPMC13594825

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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.