Antonio González Ariza

University of Cordoba (Spain) | UCO · Department of Genetics

Objective The main objective of this study was to develop a pipeline to detect phenogenomic introgression across different multivariety breeds and to validate such classification focusing on external egg and hatchability-related traits using a discriminant canonical analysis approach. Methods For this, 1368 eggs belonging a flock of 94 endangered S...

The present research aims to develop a carcass quality characterization methodology for minority chicken populations. The clustering patterns described across local chicken genotypes by the meat cuts from the carcass were evaluated via a comprehensive meta-analysis of ninety-one research documents published over the last 20 years. These documents c...

Despite the wide biodiversity of avian species of zootechnical interest in Spain, projects aimed at characterizing these genotypes and their products are necessary. External and internal egg quality traits were measured in 819 eggs laid by hens of 10 different genotypes: White, Franciscan, Black and Partridge varieties of Utrerana, Blue Andalusian,...

Early sex determination methods are not only crucial in the worldwide massive poultry industry, but also for small-holder producers. The profitability of sexing techniques must be accounted for when aiming to boost management, nutrition, and conservation practices in endangered poultry breeds. This becomes pivotal when the local breed dealt with be...

The present research aimed to determine the differential clustering patterns of carcass and meat quality traits in local chicken breeds from around the world and to develop a method to productively characterize minority bird populations. For this, a comprehensive meta-analysis of 91 research documents that dealt with the study of chicken local bree...

The development of new commercial lineages of laying hens has promoted the regression of native breeds to a second place. Therefore, it is essential to develop new lines of research that enable the development of production models adapted to these breeds and look for new markets in which their products are valued which may guarantee the conservatio...

The ancestors of wild turkeys are known to have occupied North and Center America since the last Ice Age. Wild turkey subspecies differ in size, plumage and geographic distribution. Seven subspecies of wild turkeys were already described long time before settlers reached America for the first time. Among them, the Mexican subspecies (M. g. gallopav...

The Andalusian turkey is a native breed originating in Andalusia, which has been subjected to great genetic erosion, as a result of the development of new and more productive lines. The reproductive characterization is essential for breed recognition and its conservation. Therefore, the objective of this work was to perform a preliminary evaluation...

Despite their pivotal position as relevant sources for high-quality proteins in particularly hard environmental contexts, the domestic goat has not benefited from the advances made in ge-nomics compared to other livestock species. Genetic analysis based on the study of candidate genes is considered an appropriate approach to elucidate the physiolog...

This study aimed to compare the egg laying performance of the four varieties (white, franciscan, black, and partridge) of a Spanish endangered Utrerana hen breed. A flock of 60 Utrerana hens (15 hen/variety) were individually housed to enable daily egg traceability. Compartmental, Gamma, linear hyperbolic, logistic curvilinear, McNally, Narushin-Ta...

A review of the scientific advances in the study of the growth and performance in native chicken breeds and varieties over the past 20 years was performed. Understanding the growth patterns of native breeds can only be achieved if the constraints characterizing these populations are considered and treated accordingly. Contextually, the determinatio...

Livestock selection for desirable temperament traits still remains disregarded for minor productive species, such as camels. Despite dromedary camels from Canary Islands were at once polyvalent, current major functionality for this unique European recognised breed is limited to tourism-oriented interactive experiences. The conservation of this ende...

This study aimed to develop a tool to perform the morphological characterization of Sureña and Utrerana breeds, two endangered autochthonous breeds ascribed to the Mediterranean trunk of Spanish autochthonous hens and their varieties (n = 608; 473 females and 135 males). Krus-kal-Wallis H test reported sex dimorphism pieces of evidence (p < 0.05 at...

The present study evaluates the effect of olive oil-derived antioxidants, hydroxytyrosol (HT) and 3,4-dihydroxyphenylglycol (DHPG), on cryopreserved caprine sperm using Bayesian inference of ANOVA. For this proposal, sperm was collected, pooled and diluted in freezing media supplemented with different concentrations of HT, DHPG and the mixture (MIX...

Seven non-linear growth models were compared in the Andalusian turkey, an endangered native breed. To this aim, turkeys were weekly weighted until they reached 35 weeks. The goodness-of-fit and flexibility criteria of Brody, Von Bertalanffy, Verhulst, Logistic, Gompertz, Richards, and Sinusoidal growth models were evaluated to quantify their abilit...

The aim of this study is to model the growth samples of four varieties (White, Black, Partridge, Franciscan) of Spanish Utrerana hen breed, which is endangered, by using Brody, Von Bertalanffy, Verhulst, Logistic and Gompertz models. For this purpose, a total of 16,235 weight data observations from 2004 animals reared in free range system were coll...

This study aimed to develop a tool to validate multivariety breed egg quality classification depending on quality-related internal and external traits using a discriminant canonical analysis approach. A flock of 60 Utrerana hens (Franciscan, White, Black, and Partridge) and a control group of 10 Leghorn hens were placed in individual cages to follo...

Eggshell, white and yolk chemical composition was compared across Utrerana breed varieties (black, partridge and franciscan) and Leghorn Lohmann LSL-Classic lineage. An Utrerana hens flock (n = 51) and a control group of Leghorn hens (n = 17) were housed individually allowing egg identification and quality characteristics assessment. Eggshell, yolk...

Growing interests in the application of behavioral sciences to animal production has enabled the progressive development of techniques for the improvement of handling practices aiming to reach high productive yields in a sustainable framework. Selective and differential reproduction for specific and desirable behavioral traits in the Canarian camel...

Conservation and sustainable management of local animal genetic resources and their diversity are priority tasks within a national and international framework. Officially listed as a threatened native breed, Canarian camels (Camelus dromedarius) are marginally reduced to the eastern islands of the archipelago and mainly used in touristic activities...

Anatomical and locomotive understanding of natural gaits in camels is an essential tool for its kinetic and kinematic evaluation as they constitute elements of marked predictability for functional performance, energy expenditure and training response. Biomechanics evaluation, complemented with applied ther-mography analysis, makes possible the prec...

La conservación, mejora y uso racional de los recursos genéticos animales locales y su diversidad son propósitos prioritarios a nivel nacional e internacional de evidente carácter legítimo. Reconocida en situación de amenaza, la raza camellar canaria (Camelus dromedarius) se encuentra marginalmente reducida a las islas orientales del archipiélago....

El interés creciente en la aplicación de las ciencias del comportamiento a la producción animal ha posibilitado el desarrollo progresivo de técnicas para el mejoramiento y ajuste de los sistemas de manejo con vistas a obtener rendimientos productivos elevados en el marco de la sostenibilidad. La reproducción selectiva y diferencial para rasgos cond...

La comprensión anatómica y locomotora de los aires naturales del camello es un elemento esencial para su evaluación cinética y cinemática en tanto que constituyen herramientas de marcada predictibilidad del rendimiento funcional, gasto energético y respuesta al entrenamiento. El estudio biomecánico, en asociación con evaluaciones termográficas comp...

Sex determination is key to designing endangered poultry population conservation and breeding programs when sex distribution departs from Hardy–Weinberg equilibrium. A total of 112 Utrerana chickens (28 per variety, partridge, black, white, and franciscan) were selected for hatching day sexing. Sex assignation was performed through 10 methods. Thre...

This study aimed to compare Utrerana native hen eggs’ sensory properties to Leghorn Lohmann LSL-Classic lineage’s commercial and ecological eggs through free-choice profiling. Second, affine and non-affine profiles were defined using the information provided by professionally-instructed panelists on six sets (sensory attributes, diet habits, produc...

Los huevos de diecisiete hembras reproductoras de cada pluma de la raza aviar Utrerana (perdiz, franciscana, negra y blanca), de primer y segundo ciclo de puesta y una edad de 28 y 70 semanas de edad respectivamente, fueron incubados con el fin de realizar una caracterización reproductiva de las diferentes tandas de incubación obtenidas durante la...

En el presente trabajo se realizó una evaluación preliminar del crecimiento de la raza aviar gallina Utrerana. A pesar de ser una raza en peligro de extinción, la raza Utrerana es apreciada por su rusticidad por lo que podría tener un interés económico en sistemas productivos no convencionales. Para ello, se obtuvieron datos de peso de 839 animales...

Cryopreservation in liquid nitrogen (LN2) allows for semen to be stored for long periods of time while there is sustaining of sperm viability. In this study, there was assessment of effects induced by different storage temperatures on cryopreserved dog spermatozoa. After cryopreservation at -196 °C, sperm samples were transferred to storage conditi...

The aim of the present study is to characterize the productive capability of Utrerana and to compare the relationships among parameters determining the internal and external quality of the egg, through canonical correlation analysis. A flock of 68 Utrerana hens and a control group of Leghorn hens (n = 17) were housed individually to allow individua...