Browsing by Author "Ortega Prado, Jean Pierre"

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    Análisis del índice de selección del programa de mejoramiento genético sostenible de bovinos de leche en los sectores 20 de diciembre, La Merced y Cruzpamba, cantón Pujilí en el periodo 2023- 2024.
    (Ecuador: Latacunga: Universidad Técnica de Cotopaxi (UTC)., 2024-08) Méndez Jesús, Iván Roberto; Ortega Prado, Jean Pierre; Beltrán Romero, Cristian Fernando
    In the province of Cotopaxi, Pujilí canton, 20 de Diciembre, La Merced and Cruzpamba sectors, the lack of good management practices and shortage of phenotypic and genotypic information on cattle has led producers to face challenges regarding the estimation of the genetic value of their animals. Hence, the objective of this research is to implement a genetic improvement program in order to determine the total hereditary merit index of the specimens belonging to the project. A quantitative study was used with a non-experimental design and anobservational- descriptive approach. The methodology includes a bibliographic review and covers all the productive areas mentioned. The data collection technique was a survey, through a questionnaire. The results revealed that the average production cost was 16 ctvs/ltr of milk, while the average sales cost was 39 ctvs/ltr of milk, obtaining an average monthly profit of 200.17$. The genetic merit index for average daily weight gain was determined to be 161.05 gr/day, with one specimen standing out with 247.67 gr/day. In addition, the average milk production in the sectors was found to be 2878.34 kg/cow/lactation, with one of the specimens being the best producer with 3452.07 kg/cow/lactation. Also, the result related to density gave an average of 1.026 g/ml. In conclusion, the phenotypic analysis carried out allowed us to know that the ideal of genetic improvement in daily weight gain, as well as in milk production, will be reached in the sixth generation, with an expectation of 700 gr/day, and with an estimated production of 5000 kg/cow/lactation per year. Finally, the improvement in milk density reached its goal considering the best animal, taking into account that there is a tendency to decrease if good nutritional and health conditions are not maintained.