Reprodução e critérios de seleção de ovinos machos e fêmeas em programas de melhoramento genético na ilha de São Luís MA / Breeding and selection criteria for male and female sheeps in genetic enhancement programs in São Luís Ma

This study aimed to characterize the selection criterion for sheep, male and female, most applied infarms located in the municipalities that make up the micro region urban agglomeration of São Luís, Maranhão.Technical visits were performed in 10 properties where, in each, a questionnaire and information related to thecreation of system was applied, purpose of creation, breeds, selection criterion and availability of geneticresources were obtained. The most valued characteristics to select the parents, regardless of their race, allproperties were observing the animal phenotype, with no use of genetic resources for the practice, and thesecriterion related to body development (100%) for both sex, scrotal circumference and volume (100%), testiculartilting (20%) for males, and sexual precocity, maternal ability and number of calving (40%) for females.(AU)

Qualidade e Quantidade de Oócitos Caprinos e Ovinos Recuperados por Aspiração e Fatiamento / Quality and Quantity of Goats and Sheep Oocytes Recovered by Bspiration and Slicing

This study aimed to compare the aspiration techniques and slicing ovaries in order to obtain oocytes, byassessing the quantity and quality of oocytes recovered from goat and sheep females slaughtered in São Luís -MA. The ovaries were collected after slaughtering and kept in saline solution at 0.9%, containing 30 µg / mL ofgentamicin sulfate. In the laboratory the ovaries were randomly divided into two groups with subsequent processof aspiration and slicing. The average rate of oocyte retrieval by aspiration technique were 4,53 oocytes/ovaryin sheeps and 4,11 oocytes/ovary in goats, and by the slicing technique 5,26 oocytes/ovary in sheeps and 5,06oocytes/ovary in goats. It was not observed a significant difference between the recovery rate between species,however there was statistical difference between the techniques on goats, therefore demonstrating that the twotechniques can be used for oocyte retrieval.(AU)

Qualidade e Quantidade de Oócitos Caprinos e Ovinos Recuperados por Aspiração e Fatiamento / Quality and Quantity of Goats and Sheep Oocytes Recovered by Bspiration and Slicing

This study aimed to compare the aspiration techniques and slicing ovaries in order to obtain oocytes, byassessing the quantity and quality of oocytes recovered from goat and sheep females slaughtered in São Luís -MA. The ovaries were collected after slaughtering and kept in saline solution at 0.9%, containing 30 µg / mL ofgentamicin sulfate. In the laboratory the ovaries were randomly divided into two groups with subsequent processof aspiration and slicing. The average rate of oocyte retrieval by aspiration technique were 4,53 oocytes/ovaryin sheeps and 4,11 oocytes/ovary in goats, and by the slicing technique 5,26 oocytes/ovary in sheeps and 5,06oocytes/ovary in goats. It was not observed a significant difference between the recovery rate between species,however there was statistical difference between the techniques on goats, therefore demonstrating that the twotechniques can be used for oocyte retrieval.

Reprodução e critérios de seleção de ovinos machos e fêmeas em programas de melhoramento genético na ilha de São Luís – MA / Breeding and selection criteria for male and female sheeps in genetic enhancement programs in São Luís – Ma

This study aimed to characterize the selection criterion for sheep, male and female, most applied infarms located in the municipalities that make up the micro region urban agglomeration of São Luís, Maranhão.Technical visits were performed in 10 properties where, in each, a questionnaire and information related to thecreation of system was applied, purpose of creation, breeds, selection criterion and availability of geneticresources were obtained. The most valued characteristics to select the parents, regardless of their race, allproperties were observing the animal phenotype, with no use of genetic resources for the practice, and thesecriterion related to body development (100%) for both sex, scrotal circumference and volume (100%), testiculartilting (20%) for males, and sexual precocity, maternal ability and number of calving (40%) for females.