Effect of feeding lactating ewes with <i>Moringa oleifera</i> leaf extract on milk yield, milk composition and preweaning performance of ewe/lamb pair

The objective this study was to evaluate the effect of different doses of Moringa oleifera leaf extract (MOE) on milk production and milk composition in ewes and on preweaning performance of their lambs. Twenty-four lactating ewes were housed individually with their lambs and assigned to four groups in a completely randomized design. The treatments included a basal diet without MOE (MOE0) or a basal diet supplemented with either 20 mL MOE per ewe per day (MOE20), 40 mL MOE per ewe per day (MOE40) or 60 mL MOE per ewe per day (MOE60). Over 45 days, milk production was recorded weekly and individual milk samples were collected for chemical analysis. Milk yield, fat-corrected milk and daily yields were similar among the four treatments. The supply of MOE did not affect ewe weaning efficiency and average daily gain or litter weaning weight of the lambs. Overall, the results from this study showed that dietary supplementation of hydroalcoholic extracts of Moringa oleifera leaves at doses of 20, 40 or 60 mL/ewes/d in lactating ewes does not have negative effects on milk yield, milk composition or lamb performance

Aprovechamiento de cáscaras de frutas: análisis nutricional y compuestos bioactivos

The main of this work was to analyze the bromatological and bioactive content of agroindustrial waste from fruits and vegetables in order to give it an added value. For that, the papaya, carrot, eggplant and lime peel were used, which were previously dried, ground and sie ved to then determine the humidity, ash, fiber, protein, ether extract, as well as the extraction and quantification of compounds such as carotenes, total polyphenols, flavonoids, anthocyanins and antioxidant capacity. The results indicated that the papaya and eggplant peel presented the best bromatological quality characteristics for ash (10.45 and 9.2% respectively), protein (2.23 and 13.50%) and fiber (.643 and 1.88%) and antioxidant capacity (99.63 and 97.90% respectively) with which useful products could be developed in the food or pharmaceutical industry.Se analiza el contenido bromatológico y bioactivo de residuos agroindustriales provenientes de frutas y vegetales con el fin de darle un valor agregado. Se utilizaron cáscaras de papaya, zanahoria, berenjena y lima, las cuales fueron secadas previamente, molidas y tamizadas para luego determinar la humedad, cenizas, fibra, proteína, extracto etéreo, así como la extracción y cuantificación de compuestos tales como carotenos, polifenoles totales, flavonoides, antocianinas y la capacidad antioxidante. Los resultados indicaron que las cáscaras de papaya y de berenjena presentaron las mejores características de calidad bromatológicas para cenizas (10.45 y 9.2%), proteína (2.23 y 13.50%), fibra (0.643 y 1.88%) y capacidad antioxidante (99.63 y 97.90%) con las que se podrían desarrollar productos de utilidad en la industria alimentaria o farmacéutica