Improving broilers’ feed efficiency by dietary supplementation of a CHARACTERIZED NATURAL Citrus Extract

International audienc

Improving broilers’ feed efficiency by dietary supplementation of a CHARACTERIZED NATURAL Citrus Extract

International audienc

Modulation of broilers’ productivity and blood biochemical parameters by Citrus elements dietary supplementation

Abstract The present study was conducted to evaluate the effects of a commercial lemon extract (Nor- Spice AB), dried sweet orange peel, dried lemon peel and avilamycin on broilers’ live weight and carcass traits, and to investigate their effects on some blood biochemical parameters and intestinal morphometry. A total number of 650 one day-old unsexed Arbor Acres broiler chicks were randomly assigned to 5 floor pens with 130 each and subjected to one of five different experimental diets: non supplemented basal diet (control), basal diet with 100 mg/kg of avilamycin, basal diet with 250 mg/kg of a commercial lemon extract (Nor-Spice AB), basal diet with 250 mg/kg of dried sweet orange peel and basal diet with 250 mg/kg of dried lemon peel. The commercialbased feed additive improved significantly (P <0.01) the live weight and carcass yield of broilers. Plasma glucose was very significantly (P<0.0001) decreased in all supplemented groups, whereas plasma cholesterol was significantly (P <0.05) increased in the group fed on avilamycin. Both lemon extract and lemon peel induced a significant increase in plasma triglycerides. Only avilamycin induced a significant decrease in the intestinal length. Keywords: Citrus, avilamycin, carcass yield, biochemical component

Low incidence of SARS-CoV-2, risk factors of mortality and the course of illness in the French national cohort of dialysis patients

International audienceThe aim of this study was to estimate the incidence of COVID-19 disease in the French national population of dialysis patients, their course of illness and to identify the risk factors associated with mortality. Our study included all patients on dialysis recorded in the French REIN Registry in April 2020. Clinical characteristics at last follow-up and the evolution of COVID-19 illness severity over time were recorded for diagnosed cases (either suspicious clinical symptoms, characteristic signs on the chest scan or a positive reverse transcription polymerase chain reaction) for SARS-CoV-2. A total of 1,621 infected patients were reported on the REIN registry from March 16th, 2020 to May 4th, 2020. Of these, 344 died. The prevalence of COVID-19 patients varied from less than 1% to 10% between regions. The probability of being a case was higher in males, patients with diabetes, those in need of assistance for transfer or treated at a self-care unit. Dialysis at home was associated with a lower probability of being infected as was being a smoker, a former smoker, having an active malignancy, or peripheral vascular disease. Mortality in diagnosed cases (21%) was associated with the same causes as in the general population. Higher age, hypoalbuminemia and the presence of an ischemic heart disease were statistically independently associated with a higher risk of death. Being treated at a selfcare unit was associated with a lower risk. Thus, our study showed a relatively low frequency of COVID-19 among dialysis patients contrary to what might have been assumed