ArticleTropical animal health and production2026
Genetic analysis of disqualifying traits in Nellore cattle.
Article in Tropical animal health and production, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Morphological defects in beef cattle can compromise animal welfare, functionality and reproductive efficiency, generating economic losses and reducing longevity. Understanding their genetic basis is essential to support selection decisions and prevent the dissemination of defects in breeding programs. This study aimed to estimate the genetic parameters for defects of feet and legs (FL), mouth (MO), chamfer (CH), racial characterization (RC), depigmentation (DP), umbilical hernia (UH), testicular hypoplasia (TH) and navel (NV), evaluated as binary traits at 18 months of age, in Nellore cattle. The data was provided by the CRV Lagoa - PAINT® beef cattle genetic breeding program, which belonged to the company until 2020. The components of (co)variance and breeding values were estimated by Bayesian inference using Animal Models. The genetic correlation between FL and yearling weight (YW) was obtained through a two-trait linear-threshold model. Posterior heritabilities for FL, MO, CH, RC, DP, UH, TH, NV and YW were 0.16 ± 0.03; 0.23 ± 0.04; 0.19 ± 0.03; 0.39 ± 0.04; 0.69 ± 0.04; 0.38 ± 0.12; 0.19 ± 0.04; 0.53 ± 0.04 and 0.45 ± 0.01, respectively. When lineage effect was considered fixed, all traits showed high heritability (> 0.40). The genetic correlation between FL and YW was negative and of low magnitude (-0.06 ± 0.05 without lineage; -0.01 ± 0.09 with lineage). The estimated genetic trends for FL, MO, CH, RC, DP, TH and NV declined over the years, indicating a gradual reduction of their incidence due to selection, while UH presented unstable pattern. Overall, the results indicated that including disqualifying traits in breeding programs can lead to reduced occurrence of morphological defects in Nellore herds.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.