Inconsistencies in horse coat color registration: A case study.
Abstract: Grullo is a dun dilution on a black coat that is common in the Campolina horse: an autochthonous Brazilian breed. The aims of this case study were to evaluate inconsistencies in grullo coat color registration and to explain their possible causes. A total of 3,270 grullo Campolina horses were evaluated. To confirm the genetic possibility of having grullo animals, the coat color genotypes of parents were inferred by phenotype and compared with those of progeny. A total of 242 horses that were registered as grullos could not have this coat based on their parents' information. Possible explanations for incorrect registration are errors of paternity and in coat color identification. We suggest maintaining obligatory paternity testing and enhancing training in coat color identification.
©2020 The Japanese Society of Equine Science.
Publication Date: 2020-10-05 PubMed ID: 33061785PubMed Central: PMC7538257DOI: 10.1294/jes.31.57Google Scholar: Lookup
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- Journal Article
Summary
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This research seeks to understand inconsistencies in the registration of the grullo coat color in Campolina horses, a Brazilian breed. The researchers scrutinized the genetic backgrounds of these horses and found that certain registrations were incorrect, largely due to errors in paternity and coat color identification.
Study Aim and Methodology
The researchers’ objective was to examine the consistency in the registration of Campolina horses with a grullo coat. Grullo refers to a specific dun dilution on a black coat common in this breed.
- The team examined a total of 3,270 grullo Campolina horses during the study.
- They inferred the coat color genotypes of parents based on phenotype (observable traits) and compared them to those of the offspring to verify the genetic feasibility of having grullo animals.
Results and Findings
The research revealed some discrepancies in grullo coat color registration.
- Of all the horses evaluated, 242 registered as grullo could not have this coat color based on their parents’ genetic information.
- These irregularities might be due to mistakes in determining paternity and misidentification of coat color.
Recommendations
The researchers made two main suggestions to rectify the inaccuracies in grullo coat color registration, based on their findings.
- There should be an enforcement of mandatory paternity testing to ensure the correct lineage information for each horse.
- Training in coat color identification should be improved to minimize misclassification.
These recommendations could aid in keeping proper records for the Campolina breed and ensure that the grullo coat color’s authenticity is preserved.
Cite This Article
APA
Silva ILS, Junqueira GSB, Oliveira CAA, Costa RB, DE Camargo GMF.
(2020).
Inconsistencies in horse coat color registration: A case study.
J Equine Sci, 31(3), 57-60.
https://doi.org/10.1294/jes.31.57 Publication
Researcher Affiliations
- Veterinary Medicine and Animal Science School, Federal University of Bahia (UFBA), 40170-110, Salvador-BA, Brazil.
- Veterinary Medicine and Animal Science School, Federal University of Bahia (UFBA), 40170-110, Salvador-BA, Brazil.
- Veterinary Medicine and Animal Science School, Federal University of Bahia (UFBA), 40170-110, Salvador-BA, Brazil.
- Veterinary Medicine and Animal Science School, Federal University of Bahia (UFBA), 40170-110, Salvador-BA, Brazil.
- Veterinary Medicine and Animal Science School, Federal University of Bahia (UFBA), 40170-110, Salvador-BA, Brazil.
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Citations
This article has been cited 2 times.- Junqueira GSB, Diaz IDPS, da Cruz VAR, de Araújo Oliveira CA, de Godoi FN, de Camargo GMF, Costa RB. Influence of coat color on genetic parameter estimates in horses. J Appl Genet 2021 May;62(2):297-306.
- Mura MC, Carcangiu V, Cosso G, Columbano N, Sanna Passino E, Luridiana S. Discrepancies between Genetic and Visual Coat Color Assignment in Sarcidano Horse. Animals (Basel) 2024 Feb 6;14(4).
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