RESUMEN

Hemotherapy using whole blood and its components is being increasingly used in veterinary therapy. Since it is important to store animal blood while maintaining acceptable hematological, blood gas, and biochemical characteristics, increasing our knowledge of available technologies for strategic blood storage is imperative. Thus, we aimed to assess the hematological, blood gas, and biochemical changes in donkey whole blood using blood bags with two different types of storage agents. Eight adult healthy male donkeys were used; 900 mL of blood was collected from each, with 450 mL stored in citrate-phosphate-dextrose and adenine bags (CPDA-1) and 450 mL stored in bags containing citrate-phosphate-dextrose, adenine, mannitol, and sodium chloride (CPD/SAG-M). Both bags were kept refrigerated between 1 and 6 °C for 42 days. Blood samples were removed from the bags eight times (T): T0 (immediately after blood collection), T1, T3, T7, T14, T21, T35, and T42 (1, 3, 7, 14, 21, 35 and 42 days after storage). Hematological, blood gas, biochemical, and microbiological parameters were assessed. The CPDA-1 bags had a higher packed cell volume when compared to CPD/ SAG-M. The red blood cell count reduced by around 19% in both the bags due to hemolysis, which was confirmed by an increase in plasma hemoglobin. The white blood cell count; pH; concentrations of glucose, sodium, bicarbonate, and 2,3 diphosphoglycerate were reduced in both bags. Meanwhile, pO2, pCO2, lactate dehydrogenase, and levels of potassium increased in the CPDA-1 and CPD/SAG-M bags. Blood bags were efficient for the storage of donkey blood for up to 42 days.

RESUMEN

This study evaluated the clinical effects of two different amounts of melon, with a high sugar content, suddenly offered to unadapted sheep. Twelve rumem cannulated crossbred 8-months-old sheep , weighing 25 kg each, were used. These sheep had never been fed with food concentrated with sugar or fruits. The animals were kept in collective pens with a basal diet of roughage and then randomly divided into two equal groups. The sheep in the two groups received 25% and 75% of dry matter (DM) of the diet the crushed melon, administered by the rumen cannula. Physical examination and measurement of rumen fluid pH was performed at the following times: 0, 3, 6, 12, 18 and 24 h. The animals of G25% did not present clinical signs despite subacute acidosis expected after administration of the melon. However, in the G75%, sheep developed clinical manifestation indicative of lactic acidosis with rumen fluid pH lower than 5.0 from T6h, but did not present with dehydration. In sheep from G75 %, tachycardia was observed at 3 h and continued until the end of the study; tachypnea was also observed at 3 h, which was caused by increased abdominal circumference. Based on the results obtained, the supplementation of high amounts of melon (75% DM) in the diet is not recommended for sheep, although the use of 25% DM is safe. However, greater amounts of this fruit could be used in the diet of sheep with...(AU)

No presente trabalho estudaram-se os efeitos de duas quantidades diferentes de melão com alto teor de açúcares, oferecidas subitamente a ovinos não adaptados, sobre algumas variáveis clínicas. Foram utilizados 12 ovinos canulados, mestiços da raça Santa Inês, machos, pesando 25 kg, com oito meses de idade e que nunca haviam recebido rações concentradas, frutas ou raízes. Os animais foram mantidos em baias coletivas com dieta basal composta de volumoso e distribuídos aleatoriamente em dois grupos iguais que receberam, subitamente, quantidades de melão triturado correspondentes a 25 e 75% da matéria seca (MS) da dieta, administradas pela cânula ruminal. Foi realizado exame físico e mensuração do pH do fluido ruminal nos seguintes momentos: zero, 3, 6, 12, 18 e 24 h. Os animais do G25% não manifestaram sintomatologia clínica, apesar da acidose subaguda esperada após a administração de melão. Os animais do G75% desenvolveram quadro clínico indicativo de acidose láctica ruminal, com pH deste fluido inferior a 5,0 a partir do T6h, mas sem apresentar desidratação. Nos ovinos do G75% foi observada taquicardia a partir do momento 3 horas até o final do estudo e discreta taquipnéia no momento 3 horas, causadas pelo aumento da circunferência abdominal. Não se recomenda o oferecimento de altas quantidades de melão (75% da M.S.), porém a quantidade correspondente a 25% da M.S. é segura...(AU)

Asunto(s)

RESUMEN

This study evaluated the clinical effects of two different amounts of melon, with a high sugar content, suddenly offered to unadapted sheep. Twelve rumem cannulated crossbred 8-months-old sheep , weighing 25 kg each, were used. These sheep had never been fed with food concentrated with sugar or fruits. The animals were kept in collective pens with a basal diet of roughage and then randomly divided into two equal groups. The sheep in the two groups received 25% and 75% of dry matter (DM) of the diet the crushed melon, administered by the rumen cannula. Physical examination and measurement of rumen fluid pH was performed at the following times: 0, 3, 6, 12, 18 and 24 h. The animals of G25% did not present clinical signs despite subacute acidosis expected after administration of the melon. However, in the G75%, sheep developed clinical manifestation indicative of lactic acidosis with rumen fluid pH lower than 5.0 from T6h, but did not present with dehydration. In sheep from G75 %, tachycardia was observed at 3 h and continued until the end of the study; tachypnea was also observed at 3 h, which was caused by increased abdominal circumference. Based on the results obtained, the supplementation of high amounts of melon (75% DM) in the diet is not recommended for sheep, although the use of 25% DM is safe. However, greater amounts of this fruit could be used in the diet of sheep with...

No presente trabalho estudaram-se os efeitos de duas quantidades diferentes de melão com alto teor de açúcares, oferecidas subitamente a ovinos não adaptados, sobre algumas variáveis clínicas. Foram utilizados 12 ovinos canulados, mestiços da raça Santa Inês, machos, pesando 25 kg, com oito meses de idade e que nunca haviam recebido rações concentradas, frutas ou raízes. Os animais foram mantidos em baias coletivas com dieta basal composta de volumoso e distribuídos aleatoriamente em dois grupos iguais que receberam, subitamente, quantidades de melão triturado correspondentes a 25 e 75% da matéria seca (MS) da dieta, administradas pela cânula ruminal. Foi realizado exame físico e mensuração do pH do fluido ruminal nos seguintes momentos: zero, 3, 6, 12, 18 e 24 h. Os animais do G25% não manifestaram sintomatologia clínica, apesar da acidose subaguda esperada após a administração de melão. Os animais do G75% desenvolveram quadro clínico indicativo de acidose láctica ruminal, com pH deste fluido inferior a 5,0 a partir do T6h, mas sem apresentar desidratação. Nos ovinos do G75% foi observada taquicardia a partir do momento 3 horas até o final do estudo e discreta taquipnéia no momento 3 horas, causadas pelo aumento da circunferência abdominal. Não se recomenda o oferecimento de altas quantidades de melão (75% da M.S.), porém a quantidade correspondente a 25% da M.S. é segura...

Asunto(s)