Resumo
Diversos fatores predisponentes são descritos para as afecções mamárias ou distúrbios secundários que comprometem a qualidade e produtividade de leite de fêmeas nas diferentes espécies. As características fenotípicas do úbere são consideradas na avaliação econômica de uma fêmea caprina, tanto pelo potencial de produção como pelo registro genealógico dessa fêmea. A limitação de estudos correlacionando essas características com a saúde do úbere gera a dúvida a respeito do significado da conformação do mesmo à saúde e produtividade da glândula mamária. Sendo assim, este estudo teve como objetivo relacionar os parâmetros da conformação do úbere com a celularidade da glândula mamária aferida pelo teste California Mastitis Test (CMT) e contagem de células somáticas (CCS) em 80 cabras da raça Saanen sem alterações no exame clínico da glândula mamária nem no teste de Tamis. Observou-se que a maioria dos parâmetros fenotípicos de úbere não influenciou a CCS, sendo considerados puramente estéticos. A circunferência e profundidade de úbere demonstraram correlação negativa com a celularidade e, por serem características de herdabilidade moderada a alta, podem ser parâmetros considerados para seleção genética de caprinos.(AU)
Several predisposing factors are described for mammary diseases or secondary disorders that compromise the quality and productivity of milk from females in different species. The phenotypic characteristics of the udder are considered in the economic evaluation of a female goat, whether for production potential, or as the genealogical record for these females. The limitation of studies correlating these features with the udder health raises doubt about the meaning of the conformation to the health and productivity of the mammary gland. Therefore, this study aimed to list the parameters of the udder conformation with the cellularity of the mammary gland checked by California Mastitis Test (CMT) and somatic cell count (SCC) in 80 Saanen goats without alterations in the clinical examination of the mammary gland or the Tamis test. It was observed that most of the phenotypic parameters of the udder did not influence the CCS, being considered purely esthetic. The circumference and udder depth showed negative correlation with the cellularity and moderate to high heritability traits can be considered parameters for genetic selection of goats.(AU)
Assuntos
Animais , Ruminantes , Glândulas Mamárias Animais , Leite , Mastite/veterinária , Cabras , Produção de Alimentos , Fenótipo , Contagem de Células/veterinária , Característica Quantitativa HerdávelResumo
The objective of this study was to assess the effect of several solutions and incubation times in the hypoosmotic swelling test in predicting the in vitro quality of the frozen/thawed semen of Piau boars. Four samples of frozen semen from five different Piau boars were used. For the assessment of the hypoosmotic test, three incubation times were used (5, 30 and 60 min) in three different hypoosmotic solutions (BTS at 75 mOsm/Kg, sucrrose at 100 mOsm/Kg and fructose and sodium citrate at 100 mOsm/Kg), thus, samples were submitted to each hypoosmotic solution in three incubation times. The means of sperm motility spermatic vigor and live sperm by supravital staining for the assessed samples were respectively, 37.5 ± 7.2%, 2.8 ± 0.3 and 37.4 ± 7.8% in thawing and 15.5 ± 7.6%, 1.7 ± 0.5 and 22.6 ± 6.6% after 120 mm of thermoresistance test (P < 0.05). There was no difference between the mean values obtained for reactive sperm in the different incubation times and hypoosmotic solutions, and also no interaction between time ans solutions. The results obtained in the resent study demonstrated that quality of frozen/thawed semen, besides offering aliernatives for hypoosmotic solutions and different incubation times in performing the hypoosmotic test to predict the sperm plasmatic membrane quality in boats.
Assuntos
Animais , Incubadoras , Preservação do Sêmen/métodos , Análise do Sêmen/veterinária , Suínos/classificaçãoResumo
The objective of this study was to assess the effect of several solutions and incubation times in the hypoosmotic swelling test in predicting the in vitro quality of the frozen/thawed semen of Piau boars. Four samples of frozen semen from five different Piau boars were used. For the assessment of the hypoosmotic test, three incubation times were used (5, 30 and 60 min) in three different hypoosmotic solutions (BTS at 75 mOsm/Kg, sucrrose at 100 mOsm/Kg and fructose and sodium citrate at 100 mOsm/Kg), thus, samples were submitted to each hypoosmotic solution in three incubation times. The means of sperm motility spermatic vigor and live sperm by supravital staining for the assessed samples were respectively, 37.5 ± 7.2%, 2.8 ± 0.3 and 37.4 ± 7.8% in thawing and 15.5 ± 7.6%, 1.7 ± 0.5 and 22.6 ± 6.6% after 120 mm of thermoresistance test (P < 0.05). There was no difference between the mean values obtained for reactive sperm in the different incubation times and hypoosmotic solutions, and also no interaction between time ans solutions. The results obtained in the resent study demonstrated that quality of frozen/thawed semen, besides offering aliernatives for hypoosmotic solutions and different incubation times in performing the hypoosmotic test to predict the sperm plasmatic membrane quality in boats.(AU)
Assuntos
Animais , Incubadoras , Preservação do Sêmen/métodos , Análise do Sêmen/veterinária , Suínos/classificaçãoResumo
O objetivo deste trabalho foi avaliar a utilização do teste de ligação de espermatozoides à membrana perivitelina da gema do ovo de galinha como uma alternativa de predizer a qualidade espermática pós-descongelamento em suínos da raça Piau. Foram utilizadas cinco partidas de sêmen congelado de um varrão, as quais foram subdivididas em quatro tratamentos, de acordo com o meio (BTS ou B-TALP) e as concentrações espermáticas utilizadas (20 ou 40 x 106 espermatozoides/mL). Além disso, utilizaram-se 25 partidas de sêmen congelado de cinco varrões (cinco partidas de cada animal), sendo que 10 μL de sêmen na concentração de 20 x 106 espermatozoides/mL foram incubados em meio BTS ou B-TALP. No experimento 1, o número médio de espermatozoides aderidos/mm2 variou de 157,0 ± 81,3 a 249,4 ± 119,3 (P > 0,05). No experimento 2, o número médio de espermatozoides ligados/mm2 foi de 339,3 ± 255,5 e 275,4 ± 164,0, respectivamente, para os meios BTS e B-TALP, sem diferença entre eles (P > 0,05). Concluiu-se que a concentração espermática, assim como os meios de incubação utilizados, não interferiu na capacidade de adesão de espermatozoides à membrana perivitelina da gema do ovo em animais da raça Piau. (AU)
The objective of this study was to verify the use of sperm-binding assay in Piau swine breeds to the hens egg perivitelline membrane as an alternative to predict semen post-thawing fertilizing capability. It were used five matches of frozen semen from a boar, and the matches divided into four treatments, according to media (BTS or B-TALP) or sperm concentration (20 or 40 x 106 sperm/ml). Moreover, Twenty five frozen semen samples were used from five males (five semen samples from each male), using 10 μL of sperm with the concentration of 20 x 106 spermatozoa/mL and incubated BTS or B-TALP. In experiment 1, the average number of sperm-binding/mm2 varied from 157.0 ± 81.3 to 249.4 ± 119.3 (P > 0.05). In experiment two, The average number of sperm-binding/mm2 was 339.3 ± 255.5 and 275.4 ± 164.0, respectively for BTS and B-TALP media, with no difference between themselves (P > 0.05). It was concluded that sperm concentration, as well as the incubation media used did not affect the sperm adhesion to hens egg perivitelline membrane in Piau breed animals. (AU)
Assuntos
Animais , Espermatozoides , Gema de Ovo , Preservação do SêmenResumo
O objetivo deste trabalho foi avaliar a utilização do teste de ligação de espermatozoides à membrana perivitelina da gema do ovo de galinha como uma alternativa de predizer a qualidade espermática pós-descongelamento em suínos da raça Piau. Foram utilizadas cinco partidas de sêmen congelado de um varrão, as quais foram subdivididas em quatro tratamentos, de acordo com o meio (BTS ou B-TALP) e as concentrações espermáticas utilizadas (20 ou 40 x 106 espermatozoides/mL). Além disso, utilizaram-se 25 partidas de sêmen congelado de cinco varrões (cinco partidas de cada animal), sendo que 10 μL de sêmen na concentração de 20 x 106 espermatozoides/mL foram incubados em meio BTS ou B-TALP. No experimento 1, o número médio de espermatozoides aderidos/mm2 variou de 157,0 ± 81,3 a 249,4 ± 119,3 (P > 0,05). No experimento 2, o número médio de espermatozoides ligados/mm2 foi de 339,3 ± 255,5 e 275,4 ± 164,0, respectivamente, para os meios BTS e B-TALP, sem diferença entre eles (P > 0,05). Concluiu-se que a concentração espermática, assim como os meios de incubação utilizados, não interferiu na capacidade de adesão de espermatozoides à membrana perivitelina da gema do ovo em animais da raça Piau.
The objective of this study was to verify the use of sperm-binding assay in Piau swine breeds to the hens egg perivitelline membrane as an alternative to predict semen post-thawing fertilizing capability. It were used five matches of frozen semen from a boar, and the matches divided into four treatments, according to media (BTS or B-TALP) or sperm concentration (20 or 40 x 106 sperm/ml). Moreover, Twenty five frozen semen samples were used from five males (five semen samples from each male), using 10 μL of sperm with the concentration of 20 x 106 spermatozoa/mL and incubated BTS or B-TALP. In experiment 1, the average number of sperm-binding/mm2 varied from 157.0 ± 81.3 to 249.4 ± 119.3 (P > 0.05). In experiment two, The average number of sperm-binding/mm2 was 339.3 ± 255.5 and 275.4 ± 164.0, respectively for BTS and B-TALP media, with no difference between themselves (P > 0.05). It was concluded that sperm concentration, as well as the incubation media used did not affect the sperm adhesion to hens egg perivitelline membrane in Piau breed animals.
Assuntos
Animais , Espermatozoides , Gema de Ovo , Preservação do SêmenResumo
In recent years, the search for natural plant products to fight viral diseases has been increasing. In this work, two Spondias species, namely S. mombin and S. tuberosa, found in Ceará state (Brazil), and their main phenolic components were evaluated against dengue virus. In vitro antiviral tests were performed against type-2 dengue virus by the MTT method and standard cytopathic effect reduction assay in C6/36 cells. Cytotoxicity was also evaluated by MTT. The presence of phenolic compounds quercetin, rutin, and ellagic acid in plant extracts was characterized by HPLC analysis. Both Spondias species extracts and components were nontoxic to the cells whereas rutin and quercetin displayed relevant antiviral activity with IC50 of 362.68 µg/mL and 500 µg/mL, respectively.(AU)