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Polylepis incana Kunth (queñoa), is a species that has diverse local uses; however, it has a low germination power in natural conditions. The objective of this research was to compare the germination power of Polylepis incana, with coconut, residual and untreated water treatments. An experiment was set up with three types of water and five doses of water (5, 10, 15, 20 and 25 ml). The germination was developed in 15 trays, in each one 750 g of substrate and 20 seeds were added. The irrigation was done daily with different amounts of water, from 5 to 25 ml. The percentage of germination power, temperature and soil pH were recorded daily. The statistical analyses were carried out in the INFOSTAT program. The highest germination power of seeds was registered with irrigation with residual water (9%), while seeds irrigated with coconut and untreated water reached 4%. Therefore, a 9% germination power of P. incana seeds, irrigated with residual water, was obtained. [ABSTRACT FROM AUTHOR]

This study was aimed at assessing the drying method of pig stomachs under artificial conditions. The 10 healthy pig stomachs used were washed and dry-salted. The dehydration process was carried out in an oven at a temperature of 40 ± 1°C. For the analysis of moisture content, the rapid method was used, as described in the Cuban standard (NC 275: 2003). Results were expressed as water content per gram of dry matter. The addition of sodium chloride (NaCl) at a 1:4 ratio (NaCl: stomach) contributed to the loss of water during the drying process of stomachs. This method proved to be effective in reducing the water content of pig stomachs in 96 h. The use of an artificial drying method to obtain animal milk rennet is an effective way to guarantee its quality, safety and conservation. [ABSTRACT FROM AUTHOR]

The objectives were to utilize a microwave oven (HM) to determine dry matter (MS) and evaluate its effect on dry matter (MS), organic matter content (MO), in vitro organic matter digestibility (DIVMO), brute protein (PB), acid detergent fiber (FDA), and acid-detergent insoluble nitrogen (NIDA). We utilized the forage species: Medicago sativa L., Trifolium repens L., Trifolium pratense L. and Thinopyrum ponticum Barkw. and D.R. Dewey, and mixtures of: M. sativa- Dactylis glomerata L., Festuca arundinacea Schreb.- T. repens-D. glomerata, and Lolium perenne L .- T. repens. The experimental design was a factorial complete randomized block. We compared drying time (Ts) and quality parameters on stove method (T1), HM at 900 W (T2), and HM at 900 and 400 W (T3), by ANDEVA and Duncan Test (p ≤ 0.05). In T2 and T3, Ts ranged from 6 to 8 min (T. pratense and Th. ponticum, respectively), compared to 48 h for T1. The MS value did not show differences between treatments for M. sativa, T. pratense, M. sativa- D. glomerata, and L. perenne- T. repens, but there were differences for the other forages between T2 or T3 with T1, which could be explained by the forages phenological stage. Differences between treatments were found for FDA (T. repens), DIVMO and PB (Th. ponticum), and PB and MO (L. perenne- T. repens). The use of the microwave oven allows a quick and consistent MS determination, along with a reliable forage quality standard evaluation. [ABSTRACT FROM AUTHOR]