Evidence map›Paper›PMID 25715691›Full record

ArticleAsian-Australasian journal of animal sciences2015

Selection for Duration of Fertility and Mule Duck White Plumage Colour in a Synthetic Strain of Ducks (Anas platyrhynchos).

H C Liu, J F Huang, S R Lee, H L Liu, C H Hsieh, C W Huang, M C Huang, C Tai, J P Poivey, R Rouvier and 1 more

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In one paragraph

Article in Asian-Australasian journal of animal sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 35% 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

5 citing papers in PubMed, 13 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

11 authors at 2 institutions in 1 country.

H C LiuIlan Branch, Livestock Research Institute, Council of Agriculture, Ilan 26845, Taiwan.
J F HuangIlan Branch, Livestock Research Institute, Council of Agriculture, Ilan 26845, Taiwan.
S R LeeIlan Branch, Livestock Research Institute, Council of Agriculture, Ilan 26845, Taiwan.
H L LiuLivestock Rescarch Institute, Council of Agriculture, Tainan 71246, Taiwan .
C H HsiehLivestock Rescarch Institute, Council of Agriculture, Tainan 71246, Taiwan .
C W HuangDepartment of Aquaculture, National Taiwan Ocean University, Keelung 20024, Taiwan .
M C HuangDepartment of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan .
C TaiSouthern Taiwan University of Science and Technology, Tainan 71005, Taiwan .
J P PoiveyInstitut National de la Recherche Agronomique, Station d'Amélioration Génétique des Animaux, 31326 Castanet-Tolosan, France .
R RouvierInstitut National de la Recherche Agronomique, F-34000 Montpellier, France .
Y S ChengLivestock Rescarch Institute, Council of Agriculture, Tainan 71246, Taiwan .
Council of Agriculture · TWTaiwan Livestock Research Institute · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A synthetic strain of ducks (Anas platyrhynchos) was developed by introducing genes for long duration of fertility to be used as mother of mule ducklings and a seven-generation selection experiment was conducted to increase the number of fertile eggs after a single artificial insemination (AI) with pooled Muscovy semen. Reciprocal crossbreeding between Brown Tsaiya LRI-2 (with long duration of fertility) and Pekin L-201 (with white plumage mule ducklings) ducks produced the G0. Then G1 were intercrossed to produce G2 and so on for the following generations. Each female duck was inseminated 3 times, at 26, 29, and 32 weeks of age. The eggs were collected for 14 days from day 2 after AI. Individual data regarding the number of incubated eggs (Ie), the number of fertile eggs at candling at day 7 of incubation (F), the total number of dead embryos (M), the maximum duration of fertility (Dm) and the number of hatched mule ducklings (H) with plumage colour were recorded. The selection criterion was the breeding values of the best linear unbiased prediction animal model for F. The results show high percentage of exhibited heterosis in G2 for traits to improve (19.1% for F and 12.9% for H); F with a value of 5.92 (vs 3.74 in the Pekin L-201) was improved in the G2. Heritabilities were found to be low for Ie (h (2) = 0.07±0.03) and M (h (2) = 0.07±0.01), moderately low for Dm (h (2) = 0.13±0.02), of medium values for H (h (2) = 0.20±0.03) and F (h (2) = 0.23±0.03). High and favourable genetic correlations existed between F and Dm (rg = 0.93), between F and H (rg = 0.97) and between Dm and H (rg = 0.90). The selection experiment showed a positive trend for phenotypic values of F (6.38 fertile eggs in G10 of synthetic strain vs 5.59 eggs in G4, and 3.74 eggs in Pekin L-201), with correlated response for increasing H (5.73 ducklings in G10 vs 4.86 in G4, and 3.09 ducklings in Pekin L-201) and maximum duration of the fertile period without increasing the embryo mortality rate. The average predicted genetic response for F was 40% of genetic standard deviation per generation of selection. The mule ducklings' feather colour also was improved. It was concluded that this study provided results for a better understanding of the genetics of the duration of fertility traits in the common female duck bred for mule and that the selection of a synthetic strain was effective method of improvement.

Indexed as

DuckDuration of FertilizationFertilityPlumage ColourSelection

Identifiers

PMID25715691
PMCPMC4412989
OpenAlexW2101393963

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

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.