There has been a considerable amount of work on the effects of Artemia enrichment on shrimp larvae. However, the effects on the subsequent growth performance have not been thoroughly investigated. From mysis I to eight day-old postlarvae (PL8), shrimp (Farfantepenaeus paulensis) were fed either newly hatched Artemia nauplii or Artemia enriched with an emulsion containing high levels of n-3 highly unsaturated fatty acids (n-3 HUFA). Upon reaching PL8, shrimp were exposed to salinity and ammonia stress tests. Growth performance was assessed by further rearing shrimp for 40 days. Shrimp fed the enriched Artemia (named EG) had higher tolerance to both salinity and ammonia than those fed newly hatched Artemia (named CG). Weight of PL from EG was also significantly higher than in CG. Higher levels of n-3 HUFA, especially 20:5 n-3 and 22:6 n-3, were found in the enriched Artemia. In the postlarvae, higher levels of n-6 and n-3 HUFA were observed in EG, while PL from CG presented higher levels of 18:3 n-3 and 18:4 n-3. At the end of the nursery rearing, no differences in survival were observed, but weight was higher in EG (1.08 g) than in CG (0.90 g). The supplementation of n-3 HUFA during larviculture increases the tolerance of F. paulensis postlarvae to salinity and ammonia, and positively affects growth performance after a 40 days long rearing period.

OBJETIVO: Avaliar os resultados do tratamento de 20 pacientes que usaram como tratamento definitivo um método de osteossíntese opcional para fraturas do anel pélvico. MÉTODOS: Foi feita uma análise retrospectiva da série de 20 casos de pacientes com fratura do anel pélvico tipo C de Tile, portadores de alto risco de infecção pós-operatória, tratados na Santa Casa de Misericórdia de São Paulo entre agosto de 2004 e dezembro de 2012, submetidos a fixação externa supra-acetabular percutânea associada com parafusos canulados iliossacrais de 70 mm. RESULTADOS: A média de idade dos pacientes foi de 40 anos (mínimo de 22; máximo de 77) e o tempo médio de seguimento foi de 18,5 meses (mínimo de três; máximo de 69). Após o término do tratamento dez pacientes (50%) foram classificados com bons resultados, nove (45%) tiveram desfecho regular e um (5%) não apresentou melhoria alguma. Seis apresentaram complicações. A parestesia do nervo cutâneo femoral lateral foi a mais frequente (dois pacientes). CONCLUSÃO: A fixação externa supra-acetabular associada a osteossíntese percutânea iliossacral é um bom método de tratamento definitivo para os pacientes com alto risco de infecção pós-operatória.

OBJECTIVE: To analyze the treatment results from 20 patients who underwent an alternative osteosynthesis method as definitive treatment for pelvic ring fractures. METHODS: A retrospective analysis was conducted on a series of 20 patients with pelvic ring fractures (Tile type C) and a high risk of postoperative infection, who were treated at Santa Casa de Misericórdia de São Paulo between August 2004 and December 2012. The patients underwent percutaneous supra-acetabular external fixation in association with cannulated 7.0 mm iliosacral screws. RESULTS: The patients' mean age was 40 years (range 22-77 years) and the mean length of follow-up was 18.5 months (range 3-69 months). At the end of the treatment, ten patients (50%) were classified as having good results, nine patients (45%) had fair results and one patient (5%) did not have any improvement. Six patients presented complications, and paresthesia of the lateral femoral cutaneous nerve was the most frequent of these (two patients). CONCLUSION: Supra-acetabular external fixation in association with iliosacral percutaneous osteosynthesis is a good definitive treatment method for patients with a high risk of postoperative infection.