Résumé
O objetivo do trabalho foi avaliar o desempenho e as características quantitativas de carcaça de suínos machos castrados, mantidos em ambiente de conforto térmico e alimentados com dietas contendo diferentes níveis de ractopamina. Foram utilizados 48 animais, com peso médio inicial de 67,0±2,7kg, distribuídos em delineamento de blocos ao acaso composto por quatro níveis de ractopamina (0, 5, 10 e 20ppm) e seis repetições, com dois animais cada. O período experimental teve duração de 28 dias. A temperatura do ar obtida foi de 20,9±2,9°C, a umidade relativa foi de 86,7±7,3 por cento, e o Índice de Temperatura de Globo e Umidade foi de 69,6±4,0. O peso final dos animais e o consumo de ração não foram influenciados (P>0,05) pelos tratamentos. Os níveis de ractopamina influenciaram (P<0,05) o ganho de peso diário e a conversão alimentar dos suínos. Observou-se redução linear (P<0,05) da espessura de toucinho e aumento da profundidade de músculo e da porcentagem de carne magra na carcaça de acordo com o aumento dos níveis de ractopamina na dieta. O peso e o rendimento de carcaça quente e a área de olho de lombo não foram influenciados (P>0,05) pelos tratamentos. Concluiu-se que o nível ótimo de inclusão de ractopamina na dieta de suínos machos castrados e mantidos em ambiente termoneutro é de 20ppm.
The objective of this study was to evaluate the performance and the quantitative characteristics of barrow's carcass maintained under thermoneutral environment and fed with diets containing different ractopamine levels. Forty-eight barrows were used, with initial weight of 67.0±2.7kg, distributed in a randomized blocks design with four ractopamine levels (0, 5, 10 and 20ppm) and six replicates with two animals each. The experimental period lasted 28 days. The average temperature recorded was 20.9±2.9°C, relative humidity was 86.7±7.3 percent and BGHI was 69.6±4.0. The final weight of the animals and feed intake were not influenced (P>0.05) by treatments. The ractopamine levels influenced (P<0.05) the daily weight gain and feed conversion. There was a linear reduction (P<0.05) of backfat thickness, increase of muscle depth and the carcass lean meat percentage in accordance with the increasing of ractopamine levels in the diet. The weight, carcass yield and loin eye area were not influenced (P>0.05) by treatments. It was concluded that the ractopamine optimal level of inclusion in the diet of barrows kept under thermoneutral environment is 20ppm.
Résumé
PURPOSE: This study was performed to evaluate the efficacy and compliance of beta2- agonist according to the type of preparations in the children with asthma. METHODS: Randomly selected 30 patients, who visited to Soonchunhyang University Hospital with acute asthma attack from May to August, 2004 were enrolled. Patients were randomly divided into 3 groups. We evaluated asthma symptom score before and 1 week after treatment in each group. Also, we measured O2 saturation, peak expiratory flow rate (PEFR), heart rate, and evaluated adverse reactions during the treatment. Treatment compliance was evaluated by the face to face interview with the patients and their guardians after 1 week of treatment. RESULTS: The mean asthma symptom score before and after treatment in each group were 5.9 and 1.1 in transdermal group, 5.4 and 0.9 in inhalation group, and 5.5 and 1.3 in oral group, respectively. Mean improvement of PEFR was 23.7% predicted after treatment. There was no serious adverse reactionin each group except mild itching of patch site in one case of transdermal group. Compliance of each group was relatively good. CONCLUSION: For the treatment of acute asthma attack, there was no difference in efficacy and safety of beta-agonist among the type of preparations. Also, there was no difference in adverse reaction and compliance between the type of preparation. Therefore it will be useful to choose the preparation with better compliance in each patient for the effective treatment of childhood asthma.
Sujets)
Enfant , Humains , Asthme , Compliance , Rythme cardiaque , Inspiration , Débit expiratoire de pointe , PruritRésumé
Benzalkonium chloride (BAC) is commonly used as a bactericidal preservative in nebulizer solutions, and can cause paradoxical onchoconstriction following nebulizing therapy in some asthmatics. We describe a case of anaphylactic shock in a 23-yr-old asthmatic woman following an intradermal skin test with a salbutamol solution containing BAC. Since she complained of cough and dyspnea after inhalation therapy with a nebulizer solution, we conducted an intradermal skin test using the same solution, which contained BAC. About 10 min later, the patient reported dizziness, palpitations, and dyspnea. On examination, tachycardia, tachypnea, and hypotension were found. She was resuscitated with a subcutaneous injection of epinephrine and an infusion of saline. One month later, we conducted a bronchial provocation test with BAC, and she showed a positive response.