Background: Pregnancy in all animal species requires special care and attention. During this period there is great variation in hematological and biochemical parameters. Many times these parameters are misinterpreted as being obtained from nonpregnant animals with unknown parasite status. Objective: To characterize the hematological, biochemical, and parasitological values within the peripartum period of Santa Ines sheep naturally infected. Methods: For this purpose, 45 ewes were used, with an average body weight of 50 kg. Data were collected during pregnancy, birth and, lactation. Measurements included body weight, body condition score (BCS), evaluation of conjunctive staining, and collection of blood and feces. Results: All variables changed throughout physiological stages. Weight and BCS were different between periods (p<0.05). Fecal egg counts (FEC) were higher in the peripartum period, with a predominance of Haemonchus ssp, 92.85%. Mean hematological and biochemical values varied throughout the study, (p>0.05). Conclusion: The influence of peripartum on the parameters studied should be considered and its use as a reference value. Regarding the physiological variations observed during peripartum, proper animal management could help minimizing the negative effects of parasitic infections on productivity.
SUMMARYEvaluation of the testis size is very important in stallions' selection, since it is an indirect determinant of their reproductive potential. The aim of this study was to evaluate the biometric testicular traits, calculate the volume testicular and analyze the serum testosterone concentration of the stallion. During six months were measured the tests of adults Brazilian Ponies stallions from northern of Rio de Janeiro State, Brazil. The length, the width and the height of the testicles (TL, TW and TH) were measured. From these measurements, the total testicular volume (TTV) was calculated. The serum testosterone concentration was also evaluated. The data were studied by analysis of variance and were calculated the correlations among the traits. The average of the testis biometry were TL 5.8 ± 0.6 cm; TW 3.8 ± 0.5 cm; TH 4.7 ± 0.4 cm and 111.2 ± 27.7 for TTV. Mean of serum testosterone concentration was 0.89 ± 0.52 ng/dl. High correlations between biometry testicular traits with testicular volume were observed and low to moderate correlations were observed for testicular traits, testosterone and sperm output. The testis size could be an important trait that assists to the prediction of stallion's reproductive potential of the Brazilian ponies stallions. It is suggested that there would be no fluctuation in serum testosterone concentration in Brazilian ponies stallions that coult afect on its fertility.Keywords: andrology, horse, reproduction RESUMOAvaliação do tamanho dos testículos é muito importante na seleção de garanhões, uma vez que é um determinante indireto do seu potencial reprodutivo. O objetivo deste estudo foi avaliar as características de biometria testiculares, calcular o volume testicular e analisar a concentração sérica de testosterona de garanhões. Durante seis meses, foram medidos os testículos de garanhões Pôneis da raça Brasileiro adultos, criados no Norte do Estado do Rio de Janeiro, Brasil. O comprimento a largura e a altura dos testículo (TL, TW e TH) foram mensurados. A partir dessas medidas, calculou-se o volume testicular total (TTV). Os dados foram avaliados por análise de variância e foram calculadas as correlações entre as características. A média geral das características de biometria testicular e volume testicular foram: TL 5,8 ± 0,6 cm; TW 3,8 ± 0,5 cm; TH 4,7 ± 0,4 cm e TTV 111.2 ± 27,7. A média de concentração sérica de testosterona foi de 0,89 ± 0,52 ng/dl. Altas correlações foram observadas entre as características de biometria testicular e volume testicular. Baixas a médias correlações entre as características testiculares com produção espermática e com concentração de testosterona foram observadas. O tamanho testicular pode ser uma importante característica que auxilia na predição do potencial reprodutivo do garanhão pôneis da raça Brasileira. Sugere-se que não há variações na concentração sérica de testosterona nos pôneis da raça Brasileira que poderia afetar em sua fertilidade. Palavras-chave: andrologia, equino, reproduçãoRev.
The aim of this study was to evaluate the effects of supplementation with silage made from sugarcane alone or mulberry and sugarcane on the gastrointestinal nematodes and hematological parameters in peripartum Santa Inês ewes. Three groups, each of 15 ewes, were supplemented with either 100 % sugarcane silage or sugarcane silage and mulberry at ratios of either 75:25 or 50:50. The variables analyzed were weight, body condition, packed cell volume, total plasma protein, hemoglobin, total leukocytes, eosinophils, and number of parasite eggs per gram of feces. All variables were measured individually every 14 days, making ten samples per ewe. Diets with sugarcane added to different proportions of mulberry branches did not influence the blood and parasitological parameters of Santa Inês sheep naturally infected in the peripartum period.
RESUMOO objetivo do presente trabalho foi avaliar a qualidade e estimar a repetibilidade das características físicas e morfológicas do sêmen de garanhões da raça Mangalarga Marchador assim como a fertilidade dos animais durante e fora da estação reprodutiva na região norte do estado do Rio de Janeiro. Foi coletado o sêmen de garanhões da raça Mangalarga Marchador, jovens (≤ 4 anos) e adultos (≥ 5 anos). Foi avaliado o pH, volume seminal, motilidade, vigor, concentração espermática, número total de espermatozoides (NTSTZ), defeitos espermáticos e fertilidade. Não foram verificadas variações entre a categoria de idade e estação reprodutiva na maioria das características físicas do sêmen dos garanhões. No entanto, houve variação da quantidade de defeitos espermáticos entre estações, em que durante a estação reprodutiva foi observado mais defeitos espermáticos em comparação com o período fora da estação reprodutiva. Em relação à fertilidade foi observado 60% de recuperação embrionária e após a transferência de embrião, foi observado 57,8% de prenhes. Conclui-se que os sêmens desses garanhões poderão ser coletados e utilizados sem grandes alterações na sua qualidade, durante e fora da estação reprodutiva, proporcionando a otimização da utilização do material genético de animais geneticamente superiores. Palavras-chave: equinos, andrologia, qualidade seminal Repeatability of the seminal and spermatozoa traits and fertility evaluation of stallions ABSTRACTThe aim of this study was to evaluate seminal and spermatozoa quality of stallions from North of Rio de Janeiro State in the breeding season and non-breeding season. Semen was collected from Mangalarga Marchador stallions, young (≤ 4 years) and adults (≥ 5 years). It was evaluated the pH, seminal volume, motility, vigor, concentration, the total number of spermatozoa, spermatozoa defects, and fertility. There was no variation between age category and breeding seasons in most of the traits. Although, there was a variation on spermatozoa defects between seasons, in that during breeding season we could observe more defects. Regarding the fertility, it was observed 60% of embryio recovery and 57.8% of pregnancy after embryo transfer. Concluding that one can collect and used the semen of these stallions for insemination in both breeding season without changing the quality, optimize the using of the genetic of the stallions.
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