Ureaplasma diversum infection in bovine females may result in various reproductive problems, including granular vulvovaginitis, abortion, weak calves, salpingitis, and spontaneous abortion. The presence of U. diversum in a dairy bovine population from midwestern Brazil has not been established. The aim of this study was to determine whether U. diversum was present in dairy cattle from midwestern Brazil using polymerase chain reaction (PCR). Vulvovaginal mucus was analyzed from 203 cows located in six municipalities in the north region of Mato Grosso State, Brazil. A total of 25% of dairy cows with vulvovaginitis were positive for U. diversum. The factors evaluated were included in a multivariable logistic regression model with the presence of at least one positive cow in the herd serving as the dependent variable. Three variables were significantly associated with a U. diversum-positive PCR and were included in the final multivariable model: number of parities, vulvar lesions, and reproductive problems. For each new parity, the chance of U. diversum infection decreased 0.03-fold, indicating that cows with the highest number of parities were more protected. The presence of vulvar lesions was increased 17.6-fold in females positive for U. diversum, suggesting that this bacterium could be related to the red granular lesions in the vulvar mucosa, whereas reproductive problems were increased 7.6-fold. However, further investigations should be conducted to ascertain the effects of U. diversum in association with other mycoplasma species in the herds studied.
Mestrando -Programa de pós-graduação em ciência animal-UFMT, Cuiabá. ResumoNo ano de 2011, deu entrada no Hospital veterinário da Universidade Federal de Mato Grosso, um coelho com sinais clínicos sugestivos para mixomatose, com aspecto de "face leonina", com nódulos espalhados por todo o corpo e blefaroconjuntivite. Com o histórico de conviver com outros lagomorfos, cães e gatos. O animal veio a óbito e foi realizada a necropsia, macroscopicamente observou-se a blefaroconjuntivite purulenta bilateral, as pálpebras, pele da face, orelhas e região nasolabial apresentavam-se espessadas e com nódulos irregulares. No exame interno não foram observadas alterações.Microscopicamente, na pele observou-se a camada epidérmica esponjosa e a formação de pequenas áreas pustulares multifocais acentuadas e infiltrado
Objective was to evaluate the studies on the nutritional requirements of cows and calves Nellore, seeking data requirements of energy and protein fractions for these animals from birth to weaning. There are few publications that seek nutritional requirements of cows and beef calves raised in tropical conditions. There is variation between the reported requirement for energy and protein for animals of European origin and zebu. We used the equations obtained by studies conducted in Brazil to produce tables with the net energy requirements, energy intake, total digestible nutrients for maintenance and gain weight, based on cows in different stages of lactation and body size. For lactating calves different rates of gain and body weights.As for the protein fractions. Based on the data obtained it is concluded that cows with CMS approximately 2% of body weight can not gain 1 kg / day weight, since the demand for nutrients exceeds the ingestive capacity. Calves are weaned at about 7 months and weight around 200 kg should receive supplementation from the 2nd month of life.
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