Dissertation/ Thesis
Avaliação da Fertilidade na Raça Caracu
| العنوان: | Avaliação da Fertilidade na Raça Caracu |
|---|---|
| المؤلفون: | Luiz Gustavo Cavalca |
| المساهمون: | Fabio Jose Carvalho Faria |
| بيانات النشر: | Fundação Universidade Federal de Mato Grosso do Sul Brasil UFMS |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Avaliação, fertilidade, Raça Caracu |
| الوصف: | Objectives: The objectives were: Chapter 1) To compare the different methods used to assess permanence ability (HP), calculate its heritability, to know if it is a good trait to be selected in caracu cattle. Cap.2) Evaluate the probability of offspring repetition within 14 months (PRC14), calculate its heritability and repeatability. Compare with permanence skill to recommend the best trait to select. Material and methods: The reproductive information of 17568 births from 5555 sows, whose births took place between 2003 and 2020, belonging to the Caracu herd of Fazenda Arinos, located in the municipality of Diamantino, state of Mato Grosso, were used. In addition, another 3558 animals that make up the pedigree of these animals and that will be included in the kinship matrix used in the analysis were included in the analysis. The statistical package SAS (1990) will be used for the formation of files, consistency and descriptive analysis of the data. Permanence ability was evaluated in two ways, the usual HP6/3, where every animal that presented the first offspring in the database up to 40 months of age had a valid phenotype, and those with three offspring registered up to 76 months of age have the manifestation of “success” in the permanence ability characteristic and those who did not have three offspring manifest “failure” in the permanence ability characteristic. In the second form (HP4/2), the number of pups drops to two and the time for permanence drops to 52 months, from having their first calving to 26 months. The other characteristic considered was the probability of calving repetition in up to 14 months (PRC14), a calving interval considered maximum for a cow to repeat calving in a herd management system with a three-month breeding season. In this case, all calved cows manifest a phenotype for each of their offspring, being “success” if the calving interval is less than 14 months and “failure” if this interval is greater than 14 months or this is the last calving interval. their offspring, and every ... |
| نوع الوثيقة: | thesis |
| وصف الملف: | application/pdf |
| اللغة: | Portuguese |
| Relation: | https://repositorio.ufms.br/handle/123456789/5807 |
| الاتاحة: | https://repositorio.ufms.br/handle/123456789/5807 |
| Rights: | Acesso Aberto |
| رقم الانضمام: | edsbas.57991512 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |