Evidence map›Paper›PMID 32367942›Full record

ArticleVeterinary world2020

Crossing effect for improving egg production traits in chickens involving local and commercial strains.

Mostafa Ahmed Soliman, Mohamed Hassan Khalil, Karim El-Sabrout, Mostafa Kamel Shebl

Open access · goldAbstract read
In one paragraph

Article in Veterinary world, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

13 citing papers in PubMed, 71 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

4 authors at 1 institution in 1 country.

Mostafa Ahmed SolimanDepartment of Poultry Production, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, Egypt.
Mohamed Hassan KhalilDepartment of Poultry Production, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, Egypt.
Karim El-SabroutDepartment of Poultry Production, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, Egypt.
Mostafa Kamel SheblDepartment of Poultry Production, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, Egypt.
Alexandria University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThis study aimed to contribute to the productivity improvement of the local chickens by enhancing their egg production traits using a crossbreeding program between Alexandria (local strain) and Lohmann White (commercial strain). MATERIALS AND

methodsOne thousand two-hundred and eighty-five 4-week-old chicks from two strains: Alexandria local strain (AA) and Lohmann White commercial strain (LL) and their reciprocal crosses obtained from 16 males and 160 females, were used to produce four genetic groups (AA, LL, AL, and LA). Differences among genotypes, direct additive, heterosis, and reciprocal effects were investigated regarding the following traits: Body weight at 4 and 8 weeks and at the age of sexual maturity, age at sexual maturity, egg production, average egg weight, and egg mass during the first 90 days of laying.

resultsStatistically significant effects of the genotypes were observed on traits studied. Analysis of direct additive effects showed that AA was superior as a sire strain for improving body weight at early age. For egg traits (age at sexual maturity, egg production, average egg weight, and egg mass), LL was better as a sire strain to improve these traits. Significant positive heterosis percentages were observed for body weight. The crosses (AL and reciprocal) were significantly superior in egg traits (egg production, average egg weight, and egg mass) compared to the local strain. The cross (LA) laid significantly earlier than the local strain. Analysis of reciprocal effects cleared that the local strain could be used as a strain of dam to improve body weight and egg traits.

conclusionCrossing improved egg production, egg weight, and egg mass in hybrids compared to the local strain.

Indexed as

additive effectcrossbreedingheterosislaying hensreciprocal effect

Identifiers

PMID32367942
PMCPMC7183479
OpenAlexW3009367773

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.