Efeito do dia da transferência de embrião na taxa de prenhez em éguas / Effect of the day of embryo transfer on pregnancy rate of mares

Embryo transfer in mares is a very important biotechnology to improve genetic material. The aim of thepresent study was to evaluate the best day for embryo transfer, according to the synchronization between thedonor and the recipient mare, evaluating quality and stage of the collected embryo. It was obtained an embryorecovery rate of 56.06% of the embryo flushes, a rate that was similar for D7, D8 and D9. There was nostatistical difference relating to embryo stage and quality and collection day, and neither to the pregnancy rateafter the transfer, according to the embryo age.(AU)

Correlação entre o perímetro torácico, peso corporal e a circunferência escrotal de caprinos da raça anglo-nubiano observados na 59ª EXPOEMA / Correlation between scrotal circumference and thorax circumference and between scrotal circumference and body weight of Anglo-Nubian bucks from a livestock exhibition in Maranhão, Brazil

This study aimed to evaluate the correlation between the scrotal circumference and thoraxcircumference and between the scrotal circumference and body weight of Anglo-Nubian bucks from a livestockexhibition in Maranhão, Brazil. 15 bucks were equally divided into three groups according their ages: G1 with9 to 12 months old animals –, G2 with 14 to 19 months old animals –, and G3 with 22 to 29 months oldanimals. The measurements were taken while the event was happening. The data was subjected to thecorrelation coefficient of Pearson. The measures of the scrotal circumference had a positive correlation with thethorax circumference in the groups G1 and G2. G1 group also presented a positive correlation for the bodyweight. However, in this study, it was observed a negative correlation between the scrotal circumference andthorax circumference measures for the animals from the G2 and G3 groups.(AU)

Avaliação andrológica de ovinos do Núcleo de Ruminantes da UEMA Campus Paulo VI / Evaluation andrologic of Ruminant Center of cattle from UEMA - Campus Paulo VI

The aim of the study was to characterize andrologicaly sheeps belonging to Ruminants Center ofUniversidade Estadual do Maranhao. The semen collection was performed by electro ejaculation. The bodycondition score from seven animals showed averaging 4.57 ± 1.13. The scrotal circumference (SC) was 30.58 ±4.91 cm, a scrotal circumference of rams presented mean length and width of the right testicle of 9.43 ± 1.16 cmand 5.44 ± 0.46 cm and the left testicle of 9.0 ± 0.81 cm and 5.51 ± 0.41 cm, respectively. The average volume ofsemen obtained was 0.89 ± 0.32 mL, appearance, color and odor sui generis were for the species. For physicalsemen parameters, the average turbulence was 3.57 ± 0.53; force of 3.14 ± 0.38; Sperm motility of 81.43 ±6.90%; sperm concentration of 0.8 ± 0.18 x109sptz / mL. The proportion of living and dead sperm stained witheosin-nigrosin averaged 74.1 ± 3.02% and 25 ± 3.46%, respectively. According to this study and the resultsobtained, sheep showed morphology and physical aspects consistent with the species and can be used asbreeders.(AU)

Acompanhamento ovariano de vacas Bos indicus submetidas a protocolo de superovulação / Accompaniment ovarion of cows Bos indicus under protocol superovulation

The objective was to monitor ovarian follicular development cows Gir, submitted to superovulationprotocol. Using 10 heifers, subject to three exam sessions gynecologic these being on day 0, day 4 and day 7,where on day 0 performed before beginning the superovulation protocol in order to select those that showed nochange in the reproductive tract and had corpus luteum active, while on day 4 and day 7 held in the days ofsuperstimulatory protocol, in order to quantify the follicles and evaluate follicular growth each female. With themeasurement of the follicles, it resulted three-averages 7,6 mm; 7,7mm and 10,0mm for the respective day, day0, day 4 and day 7. It was concluded that cows submitted to superovulation protocol presented ovarian folliclegrowth over the days evaluated by ultrasound and significant number of corpora lutea at the moment of embryocollection.(AU)

Efeito do dia da transferência de embrião na taxa de prenhez em éguas / Effect of the day of embryo transfer on pregnancy rate of mares

Embryo transfer in mares is a very important biotechnology to improve genetic material. The aim of thepresent study was to evaluate the best day for embryo transfer, according to the synchronization between thedonor and the recipient mare, evaluating quality and stage of the collected embryo. It was obtained an embryorecovery rate of 56.06% of the embryo flushes, a rate that was similar for D7, D8 and D9. There was nostatistical difference relating to embryo stage and quality and collection day, and neither to the pregnancy rateafter the transfer, according to the embryo age.

Acompanhamento ovariano de vacas Bos indicus submetidas a protocolo de superovulação / Accompaniment ovarion of cows Bos indicus under protocol superovulation

The objective was to monitor ovarian follicular development cows Gir, submitted to superovulationprotocol. Using 10 heifers, subject to three exam sessions gynecologic these being on day 0, day 4 and day 7,where on day 0 performed before beginning the superovulation protocol in order to select those that showed nochange in the reproductive tract and had corpus luteum active, while on day 4 and day 7 held in the days ofsuperstimulatory protocol, in order to quantify the follicles and evaluate follicular growth each female. With themeasurement of the follicles, it resulted three-averages 7,6 mm; 7,7mm and 10,0mm for the respective day, day0, day 4 and day 7. It was concluded that cows submitted to superovulation protocol presented ovarian folliclegrowth over the days evaluated by ultrasound and significant number of corpora lutea at the moment of embryocollection.

Avaliação andrológica de ovinos do Núcleo de Ruminantes da UEMA – Campus Paulo VI / Evaluation andrologic of Ruminant Center of cattle from UEMA - Campus Paulo VI

The aim of the study was to characterize andrologicaly sheeps belonging to Ruminants Center ofUniversidade Estadual do Maranhao. The semen collection was performed by electro ejaculation. The bodycondition score from seven animals showed averaging 4.57 ± 1.13. The scrotal circumference (SC) was 30.58 ±4.91 cm, a scrotal circumference of rams presented mean length and width of the right testicle of 9.43 ± 1.16 cmand 5.44 ± 0.46 cm and the left testicle of 9.0 ± 0.81 cm and 5.51 ± 0.41 cm, respectively. The average volume ofsemen obtained was 0.89 ± 0.32 mL, appearance, color and odor sui generis were for the species. For physicalsemen parameters, the average turbulence was 3.57 ± 0.53; force of 3.14 ± 0.38; Sperm motility of 81.43 ±6.90%; sperm concentration of 0.8 ± 0.18 x109sptz / mL. The proportion of living and dead sperm stained witheosin-nigrosin averaged 74.1 ± 3.02% and 25 ± 3.46%, respectively. According to this study and the resultsobtained, sheep showed morphology and physical aspects consistent with the species and can be used asbreeders.

Correlação entre o perímetro torácico, peso corporal e a circunferência escrotal de caprinos da raça anglo-nubiano observados na 59ª EXPOEMA / Correlation between scrotal circumference and thorax circumference and between scrotal circumference and body weight of Anglo-Nubian bucks from a livestock exhibition in Maranhão, Brazil

This study aimed to evaluate the correlation between the scrotal circumference and thoraxcircumference and between the scrotal circumference and body weight of Anglo-Nubian bucks from a livestockexhibition in Maranhão, Brazil. 15 bucks were equally divided into three groups according their ages: G1 – with9 to 12 months old animals –, G2 – with 14 to 19 months old animals –, and G3 – with 22 to 29 months oldanimals. The measurements were taken while the event was happening. The data was subjected to thecorrelation coefficient of Pearson. The measures of the scrotal circumference had a positive correlation with thethorax circumference in the groups G1 and G2. G1 group also presented a positive correlation for the bodyweight. However, in this study, it was observed a negative correlation between the scrotal circumference andthorax circumference measures for the animals from the G2 and G3 groups.