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Copyright of Ecosistemas y Recursos Agropecuarios is the property of Universidad Juarez Autonoma de Tabasco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Cientifica de la Facultade de Veterinaria is the property of Universidad del Zulia, Facultad de Ciencias Veterinarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Algae have been used like food from ancient times fundamentally by Asian countries. They are employed in our times like fertilizer, biofuel, hydrocolloids' industry and others. Its composition in high quality proteins, polyunsatured lipids, dietary fiber, vitamins and minerals are determinants to declare algae like an attractive functional food. Furthermore, algae have nutraceuticals substances, like the antioxidants phenols and chlorophylls. In Cuba they are present in all aquatic habitats. Particularly, Halimeda spp. and Bryothamnion spp.'s compounds are promisors like nutraceuticals and functional foods; but there not exist macroalgae's nutritional supplements or pharmaceutics products in the Cuban market. [ABSTRACT FROM AUTHOR]

The objective was to evaluate seminal plasma supplementation and the relationship between some of its components with frozen-thawed semen quality of donkey (Equus asinus). Semen from five Colombian Creole donkeys was collected by the artificial vagina method. From a fraction of each ejaculate the seminal plasma was separated by centrifugation, and vitamin C (VC), vitamin E (VE), total protein (TP) and lipid profile (LP) was evaluated. Semen cryopreservation was performed by conventional freezing in supplemented extender with 20% of seminal plasma. Motility, structural membrane integrity (SMI), abnormal morphology (AM) and functional membrane integrity (HOS) of sperm, was assessed by SCA® computerized system, SYBR14 / IP fluorescent assay, eosin-nigrosine staining and hypo osmotic swelling test, respectively. Mixed models were fitted where the fixed effect of the level of each component is included and a Pearson correlation analysis was performed between the plasma components and sperm quality. Means were compared by the Tukey test. It was found that high levels of VC, VE, TP and stearic acid (C18:0) had a deleterious effect on cryopreserved semen quality (P ≤0.05). While a low level of PT and C18: 0, and a medium level of VE and VC showed higher post-thaw results for motility and membrane integrity (P ≤0.05). Negative correlation coefficients of VC, VE, TP and C18:0 with different parameters of post-thaw semen quality were found. It is concluded that the composition of seminal plasma supplemented in freezing of donkey semen, influences the post-thaw sperm quality. [ABSTRACT FROM AUTHOR]

Objective: To compare the nutrient intake in children between malnourished and well-nourished children under 2 years. Methods: 15 eutrophic and 15 malnourished children treated at Children's Hospital of Morelia were included. The daily nutrient intake was calculated with the software Mexfoods, considering memory reminder of 24 h, applied to mothers. Results: Malnourished children cover about 50% of daily energy intake and 35% of protein intake. Regarding the intake of carbohydrates they only cover 60%. Only 50% of the recommended daily intake for vitamin D, K, niacin and pyridoxine is covered. Ingestion of alpha-linolenic acid ranged from 0.003 to 0.005% of the recommendation. Docosahexaenoic acid intake ranged from 0.001 to 0.01% of the recommended daily intake. Conclusions: In general, undernourished children under 2 years have lower intake of macro and micronutrients than well-nourished children. [ABSTRACT FROM AUTHOR]

Copyright of Revista CienciaUAT is the property of Universidad Autonoma de Tamaulipas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objectives: to verify the effect of three storage conditions on human milk acidity and to determine the quantity of lipids, total solids, ash, calcium, and total proteins. Methods: the sample comprised healthy milk donors to the Human Milk Bank of the University Hospital of Maringá (n37), State of Paraná, Brazil. The quantities of lipids, protein, total solids, ash and calcium were measured, as well as acidity. The study protocol included three storage conditions: time zero, after 4h storage at room temperature and after 24h under refrigeration. Results: the average concentrations of nutrients found in this study were comparable to those described in milk from lactating mothers of developed countries or other Brazilian regions, which is suitable forfeeding newborns. As for acidity, variations were observed between individuals for the storage condi- tions involving 4h and 24h, which did not occur for the condition of Oh. A weak correlation between the variables of acidity and protein content was observed, as well as for acidity and calcium. Conclusions: the acidity does not have a sign iji- cant influence on the concentration of the nutrients, at least under the storage conditions studied here. The best way to preserve human milk is to freeze it imme- diately after collection. [ABSTRACT FROM AUTHOR]

Lepidium meyenii, "Maca" and the Lupinus mutabilis S, "Chocho" belong to the group of plants known as nutraceutic plants. Maca has been used since the seventh century BC and it was the most important crop in Peruvian agriculture during the sisxteenth century, around the time when the Spanierds arrived to our territory. This plant belongs to the Cruciferaceae (Brasicaceae) family. Both plants (Maca and Chocho) were used in Peru, since pre Columbian times as part of the diet as well as for their medicinal properties. In these issue, we evaluated the effects of Maca and Lupinus on female Sprague Dawley rats (weight between 120 and 170 g), and we tested Hemoglobin, hematocrit, total proteins, albumin, TOO, TOP and corporal weight values after 15 and 30 days of trestment. We used 60 albino rats, distributed in three groups of twenty animals each one. The first group was the control and received 0,9% saline solution for 30 days. The second group received Maca flour watery solution at 500 mg/kg doses and the third group received Lupinus, watery solution at 500 mg/kg doses for thirty days. Our results showed an increase of the serum levels of triglycerides due to Lupinus (from 45.9 to 76.55mg) after 30 days in relation to the control that varied from 43.5 to 61.8mg. With Maca variations were from 43.5 to 56.7 mg. We also appeciated a slight increase of hematocrit and haemoglobin after 15 days of treatment with Maca in relation to the control group. Analyses between control and treated groups showed no statistical differences. [ABSTRACT FROM AUTHOR]

Copyright of Archivos Latinoamericanos de Nutrición is the property of Sociedad Latinoamericana de Nutricion and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

We characterized the growth and biochemical composition of a Chaetoceros muelleri strain from the Araya Peninsula, Sucre, Venezuela. The microalga was cultured under laboratory conditions (25 ± 1°C, 156 μE m-2 s-1 and 12:12 photoperiod) during 13 days, using two culture methods: batch and semicontinuous culture with a daily renewal rate of 30%. Cell density was determined and cells from each treatment were measured. The protein, lipid, carbohydrate and fatty acid contents were quantified to compare the quality of the Araya strain in both culture systems. Cell density showed little variability in the semicontinuous system during the steady-state phase (1.3 × 106 cells mL-1 on average), but increased significantly in the batch system, reaching 3.5 × 106 cells mL-1. Proteins, lipids and carbohydrates did not show significant variations in the semicontinuous system, with mean values of 21.4 ± 0.8, 18.4 ± 0.8 and 4.1 ± 0.1 pg cells-1, respectively. In the batch system, however, these macromolecules showed greater variability: proteins 3.5–21.1 pg cells-1, lipids 8.5–11.6 pg cells-1 and carbohydrates 4.2–18.1 pg cells-1. Higher levels of saturated (47.5%) and monounsaturated (34.8%) fatty acids were found in the semicontinuous system, whereas the content of polyunsaturated fatty acids (31.4%) was higher in the batch system, in particular of eicosapentaenoic acid (EPA, 20:5 n-3) (16 ± 2% of total fatty acids). Cell size did not vary significantly in the two culture systems and the mean width and length were 5 and 7.5 μm, respectively. The Araya strain of C. muelleri can be used as a food source for cultured larvae, the semicontinuous system providing a more stable nutritional quality. [ABSTRACT FROM AUTHOR]