Tesis Medicina Veterinaria

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    Evaluación de semen porcino centrifugado de raza Pietrain para la obtención de dosis con alta concentración espermática
    (2024-08) Cadena Cando, Jean Sebastián; Aragadvay Yungán, Ramón Gonzalo
    The aim of this research was to evaluate the centrifuged porcine sperm of the Pietrain breed in order to obtain dose with high concentration of sperm, for which it was needed to work with 4 treatments: Tx0 (Control treatment) and different gravitational forces Tx1 (1200g), Tx2 (2200g) and Tx3 (3200g). 143 ml of pork sperm from Pietrain breed were applied, using a design completely random with 6 repetitions per treatment, the results were compared through the Tukey test to the 0.05, where different parameters were evaluated in order to determine the sperm quality. The variables considered to analyze the fresh sperm were obtained through a macroscopic research (color, smell, volume) and through microscopic tests (morphology, sperm concentration, mass and individual motility), meanwhile, for the treatments with centrifuged sperm the variables were added (alive and dead spermatozoids percentage in microscopic tests). The obtained results were statistically analyzed by ANOVA (Variance Analysis), where there was no meaningful difference found, except from the sperm concentration which demonstrated statistic differences in the treatments (Tx2) and (Tx3) showing that the sperm concentration varies depending the centrifuged force applied.
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    Caracterización y Definición del Ecotipo del Cerdo Criollo (Sus scrofa domestica) de altura en traspatio de la provincia de Tungurahua
    (2024-08) Alcocer Varela, Kevin Mauricio; Lozada Ortiz, Jenny Piedad
    In the province of Tungurahua, the phenotypic characteristics of tall adult Creole pigs (Sus scrofa domestica) were evaluated through zoometry, by determining 17 Zoometric Measures, 8 Phaneroptic Characteristics and 9 Zoometric Indices and the definition of the ecotypes of Creole pigs in the province, where Creole pigs from three cantons of the province were sampled, in Ambato in the parishes of Pishilata, Ambatillo, Quisapincha, Pilahuin, Juan Benigno Vela, in the canton of Pelileo in the parishes of Chiquicha and Salasaka, in the canton of Quero. in the San Vicente, Shaushi and Punachisag parishes. The total number of animals sampled was 47 pigs, of which 57.45% were males and 42.55% females, the average age was 12.02 ±7.75 months and the average live weight was 50. 55±1.99 kilograms. In the Zoometric Measurements, means of (LCZ) 26.55 ±3.97 cm were obtained; (ACZ) of 16.84 ±3.40cm; (HL) 9.57 ±2.3 cm; (AH) 9.75 ±2.07 cm; (LGR) 25.39 ±5.48 cm; (AGR) 17.63±3.19 cm; (DBC) 19.27 ±7.01 cm; (DDE) 33.14±7.26cm; (ALC) 61.60 ± 11.02 cm; (ALG) 66.42 ± 12.95 cm; (LC) 93.04 ±17.41; (TDF) 94.67±17.97 cm; (PCA) 16.28 ±2.93 cm; (BA) 17.60 ± 4.19 cm; (AO) 15.09 ±3.15 cm; (LJ) 33.69 ± 6.20 cm; (LP) of 33.70 ±6.45 cm. In the determination of the zoometric indices, it is determined that the Creole pigs in Tungurahua are animals, eumetric, brachycephalic because there is a greater percentage of animals with a concave, subconcave and, to a lesser extent, ultraconcave profile, they are also mesoprosopios, Longitudilinear, they have more elongated bodies, they have a rump with convex lines, and a longilinear thorax. 7 Ecotypes were found, such as the Creole pig with mamellas and a white line on its head, the reddish pig, the reddish pig with black spots, the black pig with abundant hair and bristles, the pig with few bristles and the Lampiño pig.