Effects of Hypotonic and Isotonic Enteral Electrolyte Solutions Administered in Continuous Flow in Weaned Foals.

The effects of fluid therapy with maintenance enteral electrolytic solutions administered by nasogastric route in continuous flow have not previously been studied in weaned foals. This study primary goal was to compare the effects of two maintenance enteral electrolytic solutions administered by nasogastric route in continuous flow on the hydro electrolytic balance in weaned foals. This paper was a controlled trial in a cross-over design (6 × 2) performed in six foals with a mean age of 7.3 ± 1.4 months; each animal received two treatments, IsoES and HypoES, with an interval of 7 days between treatments. After 12 h of fasting, the animals were treated with enteral electrolyte solutions administered via nasogastric route in continuous flow in a volume of 15 mL/kg/h for 12 h. The evaluations were performed at T-12h (the beginning of the fasting), T0h (end of fasting and beginning of fluid therapy), T4h (4 h of fluid therapy), T8h (8 h of fluid therapy), T12h (end of fluid therapy), and T24h (12 h after the end of fluid therapy). Twelve hours of fasting resulted in a reduction (P < 0.05) in body weight, abdominal circumference, whereas serum sodium, SID and enophthalmos increased. Twelve hours of fluid therapy normalized these parameters and promoted increased urinary volume and decreased urinary density without causing electrolyte imbalances. Both enteral electrolytic solutions were effective in reestablishing clinical and laboratorial variables without causing electrolyte imbalances.

Conservantes florais comerciais nas soluções de manutenção de hastes florais de gérbera de corte / Commercial floral preservative in solutions in the maintenance of gerbera floral stalks

As flores de corte são produtos altamente perecíveis e sua vida pós-colheita deve ser prolongada ao máximo para garantir a fidelidade dos consumidores. Uma possível medida para ampliar o período pós-colheita é a adição de fontes exógenas como biocidas, açúcares e substâncias acidificantes, compostos presentes nos conservantes florais comerciais. Nesse sentido, objetivou-se avaliar a eficácia do uso de conservantes florais na longevidade pós-colheita e na redução do número de bactérias em hastes florais de gérbera de corte. Seis hastes florais por unidade experimental de gérberas 'Essandre', colhidas em produtor comercial, foram condicionadas em frascos de vidro com 1L das seguintes soluções: T1 - água destilada (tratamento testemunha); T2-1,0% (v/v) Flower(r); T3-1,5% (v/v) Flower(r); T4-1,0% (v/v) Flower Plus(r); T5-1,5% (v/v) Flower Plus(r); e T6-1 tablete de Florissant 500(c). Ao final de 7 dias, observou-se o conteúdo de carboidratos totais e, ao final do experimento: a longevidade; a massa fresca relativa; e a absorção de solução. Nas soluções de vaso, durante o período experimental, avaliou-se o pH. A contagem bacteriana, nas hastes florais, foi realizada com os tratamentos: T1 - água destilada (tratamento testemunha); T2-0,75% (v/v) Flower(r); T3-1,5% (v/v) Flower(r). Os conservantes florais testados não aumentam a longevidade pós-colheita de hastes florais de gérbera de corte. O uso de conservante floral reduz o número de bactérias em hastes florais de gérbera de corte.(AU)

Cut flowers are highly perishable products and its shelf-life should be prolonged to the maximum to ensure the fidelity of consumers. A measure to assist vase life lengthening might most likely derives from the addition of exogenous sources of biocides, carbohydrates and acidifying substances compounds present in commercial floral preservatives. The objective of this study was to evaluate the efficacy of floral preservatives on postharvest longevity, and reducing the number of bacteria in gerbera cut flowers. Six cv. 'Essandre' gerbera flower stalks as experimental unit were harvested at a commercial cut flower producer and placed in glass jars with 1L of these solutions: T1 - distilled water (control treatment); T2-1,0% (v/v) Flower(r) ; T3-1,5% (v/v) Flower(r); T4-1,0% (v/v) Flower Plus(r); T5-1,5 % (v/v) Flower Plus(r) and T6 - one tablet Florissant 500(c). The following variables were evaluated at the end of shelf life of the flower stalks: contents of storage substances, longevity, relative fresh weight and solution uptake. The pH of vase solutions was determined along the evaluation period. Bacterial counts were performed from solutions of the following treatments: T1 - distilled water (control treatment); T2-0,75% (v/v) Flower(r); and T3-1,5% (v/v) Flower(r). The floral preservatives tested did not increase the postharvest longevity of gerbera cut flowers. The use of floral preservative reduces the number of bacteria in gerbera cut flowers.(AU)

Conservantes florais comerciais nas soluções de manutenção de hastes florais de gérbera de corte / Commercial floral preservative in solutions in the maintenance of gerbera floral stalks

As flores de corte são produtos altamente perecíveis e sua vida pós-colheita deve ser prolongada ao máximo para garantir a fidelidade dos consumidores. Uma possível medida para ampliar o período pós-colheita é a adição de fontes exógenas como biocidas, açúcares e substâncias acidificantes, compostos presentes nos conservantes florais comerciais. Nesse sentido, objetivou-se avaliar a eficácia do uso de conservantes florais na longevidade pós-colheita e na redução do número de bactérias em hastes florais de gérbera de corte. Seis hastes florais por unidade experimental de gérberas 'Essandre', colhidas em produtor comercial, foram condicionadas em frascos de vidro com 1L das seguintes soluções: T1 - água destilada (tratamento testemunha); T2-1,0% (v/v) Flower(r); T3-1,5% (v/v) Flower(r); T4-1,0% (v/v) Flower Plus(r); T5-1,5% (v/v) Flower Plus(r); e T6-1 tablete de Florissant 500(c). Ao final de 7 dias, observou-se o conteúdo de carboidratos totais e, ao final do experimento: a longevidade; a massa fresca relativa; e a absorção de solução. Nas soluções de vaso, durante o período experimental, avaliou-se o pH. A contagem bacteriana, nas hastes florais, foi realizada com os tratamentos: T1 - água destilada (tratamento testemunha); T2-0,75% (v/v) Flower(r); T3-1,5% (v/v) Flower(r). Os conservantes florais testados não aumentam a longevidade pós-colheita de hastes florais de gérbera de corte. O uso de conservante floral reduz o número de bactérias em hastes florais de gérbera de corte.

Cut flowers are highly perishable products and its shelf-life should be prolonged to the maximum to ensure the fidelity of consumers. A measure to assist vase life lengthening might most likely derives from the addition of exogenous sources of biocides, carbohydrates and acidifying substances compounds present in commercial floral preservatives. The objective of this study was to evaluate the efficacy of floral preservatives on postharvest longevity, and reducing the number of bacteria in gerbera cut flowers. Six cv. 'Essandre' gerbera flower stalks as experimental unit were harvested at a commercial cut flower producer and placed in glass jars with 1L of these solutions: T1 - distilled water (control treatment); T2-1,0% (v/v) Flower(r) ; T3-1,5% (v/v) Flower(r); T4-1,0% (v/v) Flower Plus(r); T5-1,5 % (v/v) Flower Plus(r) and T6 - one tablet Florissant 500(c). The following variables were evaluated at the end of shelf life of the flower stalks: contents of storage substances, longevity, relative fresh weight and solution uptake. The pH of vase solutions was determined along the evaluation period. Bacterial counts were performed from solutions of the following treatments: T1 - distilled water (control treatment); T2-0,75% (v/v) Flower(r); and T3-1,5% (v/v) Flower(r). The floral preservatives tested did not increase the postharvest longevity of gerbera cut flowers. The use of floral preservative reduces the number of bacteria in gerbera cut flowers.