Phenotypic characterization of Creole swine from the Center-South region of Paraná, Brazil
This research aimed to phenotypically characterize 55 pigs from traditional communities, called Faxinal With each pig, 24 variables were measured: 8 qualitative morphological, 16 quantitative / zoometric and 5 zoometric indices were determined. According to the frequency tables of the qualitative variables, it was observed that most pigs showed similarities to the morphological patterns observed in the Brazilian breeds Moura, Piau and Canastra. For the data of the zoometric variables and the zoometric indices, descriptive statistical analysis and variance analysis were applied using two different sources of variation: sex and Faxinal. There was a great morphological variability of the studied creole pigs, with the highest values of the variation coefficients observed for croup length and width, live weight and snout length. According to the averages obtained, the pigs were classified as elliptical, mesocephalic, longilinous, concavilinous. Significant differences between Faxinal were observed for croup width, body length, snout and croup, croup height and interorbital distance and cephalic, facial and pelvic indices. Significant differences between sexes were observed for withers height, snout length, shin girth and interorbital distance. There was significant between Faxinal *sex interaction for some zoometric variables, but not for the indexes. For body measurements, the correlations were high and significant, with the thoracic perimeter, abdominal perimeter and body length being the characteristics that best correlated with live weight. Cranial measurements (lengths of snout, ear and head and interorbital distance) were moderate to low. To infer the population structure, a statistical model was applied based on a bayesian approach according to the Structure Harvest software. It was possible to identify three phenotypic groupings, corroborating the results of qualitative variables. Genetic characterization studies should be carried out in these populations to serve as a basis for defining strategic actions for conservation and sustainable use of these genetic resources.
| Main Authors: | , , , , , , |
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| Format: | Digital revista |
| Language: | por |
| Published: |
Asociacion Latinoamericana de Produccion Animal
2021
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| Online Access: | https://ojs.alpa.uy/index.php/ojs_files/article/view/2842 |
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